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  • How to parse xml with multiple, changing namespaces?

    - by sweenrace
    I have the following xml that I'm trying to parse and get the Account Data from <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <ns2:SearchResults xmlns="http://www.intuit.com/sb/cdm/v2" xmlns:ns2="http://www.intuit.com/sb/cdm/qbo" xmlns:ns3="http://www.intuit.com/sb/cdm/qbopayroll/v1"> <ns2:CdmCollections xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="Accounts"> <Account> <Id idDomain="QBO">31</Id> <SyncToken>0</SyncToken> <MetaData> <CreateTime>2010-02-16T18:03:50-08:00</CreateTime> <LastUpdatedTime>2010-02-16T18:03:50-08:00</LastUpdatedTime> </MetaData> <Name>Accounts Payable</Name> <Subtype>AccountsPayable</Subtype> <CurrentBalance>34002.00</CurrentBalance> </Account> <Account> <Id idDomain="QBO">36</Id> <SyncToken>0</SyncToken> <MetaData> <CreateTime>2011-01-11T13:24:14-08:00</CreateTime> <LastUpdatedTime>2011-01-11T13:24:14-08:00</LastUpdatedTime> </MetaData><Name>Accounts Receivable (A/R)</Name> <Subtype>AccountsReceivable</Subtype> <CurrentBalance>1125.85</CurrentBalance> </Account> </ns2:CdmCollections> <ns2:Count>10</ns2:Count> <ns2:CurrentPage>1</ns2:CurrentPage> </ns2:SearchResults> The following code sometimes work such that the I can see that children tags and values of CdmCollections. However, it doesnt always work for the same query. Looking at the raw xml I can see the namespaces change, e.g. sometimes ns2="http://www.intuit.com/sb/cdm/qbo" (works) and other times ns2 = "http://www.intuit.com/sb/cdm/v2" (doesnt work). I thought by using the namespaces array I could handle that issue but its not working. Any suggestions how I can fix this? $account_xml = new SimpleXMLElement($account_query_response); $namespaces = $account_xml->getNamespaces(true); $account_xml->registerXPathNamespace('c', $namespaces["ns2"]); $x = 0; foreach($account_xml->xpath('//c:SearchResults') as $search) { echo "<br>row " . $x; $search->registerXPathNamespace('c', $namespaces["ns2"]); var_dump($search->xpath('//c:CdmCollections')); }

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  • Android How do i overwrite the filter for my ArrayAdapter?

    - by alan
    Hey guys my first post here... Im trying to write a custom filter to filter the arraylist in my arrayadapter such that my listview is filtered when i click on the button. For instance when i click on my button public void onClick(View arg0) { String abc = "abc"; m_adapter.getFilter().filter(abc); } However, when i click on my button, my app terminate unexpectedly. Here is my code for the arrayadapter and filter. Please help me. package com.ntu.rosemobile.searchlist; public class ResultsAdapter extends ArrayAdapter<SearchItem> implements Filterable{ public ArrayList<SearchItem> subItems; public ArrayList<SearchItem> allItems; private LayoutInflater inflater; private PTypeFilter filter; public ResultsAdapter(Context context, int textViewResourceId, ArrayList<SearchItem> items) { super(context, textViewResourceId, items); this.subItems = items; this.allItems = this.subItems; inflater= LayoutInflater.from(context); } @Override public Filter getFilter() { if (filter == null){ filter = new PTypeFilter(); } return filter; } //@Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { v = inflater.inflate(R.layout.listrow, null); } SearchItem o = subItems.get(position); if (o != null) { TextView pname = (TextView) v.findViewById(R.id.productname); TextView neg = (TextView) v.findViewById(R.id.negNum); TextView pos = (TextView) v.findViewById(R.id.posNum); TextView neu = (TextView) v.findViewById(R.id.neuNum); WebImageView productPhoto = (WebImageView)v.findViewById(R.id.pPhoto); if(productPhoto!=null){ productPhoto.setImageUrl(o.getImageUrl().toString()); productPhoto.loadImage(); } if(pname!= null){ pname.setText(o.getProductName().toString()); } if (neg != null) { String a = "" + o.getNegativeReviews(); neg.setText(a); } if(neu != null){ String a = "" + o.getNeutralReviews(); neu.setText(a); } if(pos != null){ String a = "" + o.getPositiveReviews(); pos.setText(a); } } return v; } private class PTypeFilter extends Filter{ @SuppressWarnings("unchecked") @Override protected void publishResults(CharSequence prefix, FilterResults results) { // NOTE: this function is *always* called from the UI thread. subItems = (ArrayList<SearchItem>)results.values; notifyDataSetChanged(); } @SuppressWarnings("unchecked") protected FilterResults performFiltering(CharSequence prefix) { // NOTE: this function is *always* called from a background thread, and // not the UI thread. FilterResults results = new FilterResults(); ArrayList<SearchItem> i = new ArrayList<SearchItem>(); if (prefix!= null && prefix.toString().length() > 0) { for (int index = 0; index < allItems.size(); index++) { SearchItem si = allItems.get(index); if(si.getPType().compareTo(prefix.toString()) == 0){ i.add(si); } } results.values = i; results.count = i.size(); } else{ synchronized (allItems){ results.values = allItems; results.count = allItems.size(); } } return results; } } }

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  • Problem with System.Diagnostics.Process RedirectStandardOutput to appear in Winforms Textbox in real

    - by Jonathan Websdale
    I'm having problems with the redirected output from a console application being presented in a Winforms textbox in real-time. The messages are being produced line by line however as soon as interaction with the Form is called for, nothing appears to be displayed. Following the many examples on both Stackoverflow and other forums, I can't seem to get the redirected output from the process to display in the textbox on the form until the process completes. By adding debug lines to the 'stringWriter_StringWritten' method and writing the redirected messages to the debug window I can see the messages arriving during the running of the process but these messages will not appear on the form's textbox until the process completes. Grateful for any advice on this. Here's an extract of the code public partial class RunExternalProcess : Form { private static int numberOutputLines = 0; private static MyStringWriter stringWriter; public RunExternalProcess() { InitializeComponent(); // Create the output message writter RunExternalProcess.stringWriter = new MyStringWriter(); stringWriter.StringWritten += new EventHandler(stringWriter_StringWritten); System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo(); startInfo.FileName = "myCommandLineApp.exe"; startInfo.UseShellExecute = false; startInfo.RedirectStandardOutput = true; startInfo.CreateNoWindow = true; startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden; using (var pProcess = new System.Diagnostics.Process()) { pProcess.StartInfo = startInfo; pProcess.OutputDataReceived += new System.Diagnostics.DataReceivedEventHandler(RunExternalProcess.Process_OutputDataReceived); pProcess.EnableRaisingEvents = true; try { pProcess.Start(); pProcess.BeginOutputReadLine(); pProcess.BeginErrorReadLine(); pProcess.WaitForExit(); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } finally { pProcess.OutputDataReceived -= new System.Diagnostics.DataReceivedEventHandler(RunExternalProcess.Process_OutputDataReceived); } } } private static void Process_OutputDataReceived(object sender, System.Diagnostics.DataReceivedEventArgs e) { if (!string.IsNullOrEmpty(e.Data)) { RunExternalProcess.OutputMessage(e.Data); } } private static void OutputMessage(string message) { RunExternalProcess.stringWriter.WriteLine("[" + RunExternalProcess.numberOutputLines++.ToString() + "] - " + message); } private void stringWriter_StringWritten(object sender, EventArgs e) { System.Diagnostics.Debug.WriteLine(((MyStringWriter)sender).GetStringBuilder().ToString()); SetProgressTextBox(((MyStringWriter)sender).GetStringBuilder().ToString()); } private delegate void SetProgressTextBoxCallback(string text); private void SetProgressTextBox(string text) { if (this.ProgressTextBox.InvokeRequired) { SetProgressTextBoxCallback callback = new SetProgressTextBoxCallback(SetProgressTextBox); this.BeginInvoke(callback, new object[] { text }); } else { this.ProgressTextBox.Text = text; this.ProgressTextBox.Select(this.ProgressTextBox.Text.Length, 0); this.ProgressTextBox.ScrollToCaret(); } } } public class MyStringWriter : System.IO.StringWriter { // Define the event. public event EventHandler StringWritten; public MyStringWriter() : base() { } public MyStringWriter(StringBuilder sb) : base(sb) { } public MyStringWriter(StringBuilder sb, IFormatProvider formatProvider) : base(sb, formatProvider) { } public MyStringWriter(IFormatProvider formatProvider) : base(formatProvider) { } protected virtual void OnStringWritten() { if (StringWritten != null) { StringWritten(this, EventArgs.Empty); } } public override void Write(char value) { base.Write(value); this.OnStringWritten(); } public override void Write(char[] buffer, int index, int count) { base.Write(buffer, index, count); this.OnStringWritten(); } public override void Write(string value) { base.Write(value); this.OnStringWritten(); } }

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  • Need a little help with sound in a JApplet

    - by jacob schuschel
    I am working on a solitaire game in Java, and i need to implement sound when the desk is shuffled, card flipped, etc. I used the following sites as reference to try and get it to work, but i am getting Null Pointer Exceptions or mishandled URL exception (depending on what i tweak). here Also, i am using netbeans 6.7.1 as my IDE. I will try to break down the code and explain: package cardgame; import java.applet.*; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JApplet; import javax.swing.*; import java.io.*; import java.net.*; /** * * @author jacob */ public class Sound extends JApplet { private AudioClip song; // Sound player private String URL = null; private URL songPath; // Sound path /* *sound_1 = shuffling cards *sound_2 = to discard *sound_3 = from discard *sound_4 = cardflip 1 *sound_5 = cardflip 2 */ Sound(String filename) { try { songPath = new URL(getCodeBase(),filename); // Get the Sound URL } catch (MalformedURLException ex) { Logger.getLogger(Sound.class.getName()).log(Level.SEVERE, null, ex); } song = getAudioClip(songPath); // Load the Sound } Sound(int i) { URL = "./sounds/sound_" + i + ".wav"; System.out.println(URL); try { songPath = new URL(URL); // Get the Sound URL song = getAudioClip(songPath); } catch (MalformedURLException ex) { Logger.getLogger(Sound.class.getName()).log(Level.SEVERE, null, ex); } } public void playSound() { song.loop(); // Play } public void stopSound() { song.stop(); // Stop } public void playSoundOnce() { song.play(); // Play only once } } The 2 different construcors are for different ways i tried to implement this. The first one creates the filepath, and passes it in. The second one builds the filepath in the constructor, given a sound # (i made a list of what numbers correspond to what sound for reference). I am getting the followig errors out: ./sounds/sound_1.wav Nov 16, 2009 4:14:13 PM cardgame.Sound ./sounds/sound_2.wav SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_1.wav ./sounds/sound_3.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) ./sounds/sound_4.wav ./sounds/sound_5.wav at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Nov 16, 2009 4:14:13 PM cardgame.Sound SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_2.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Nov 16, 2009 4:14:13 PM cardgame.Sound SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_3.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Nov 16, 2009 4:14:13 PM cardgame.Sound SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_4.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Nov 16, 2009 4:14:13 PM cardgame.Sound SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_5.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Thanks for those who read and more thanks to those who help. I know it is somewhat long, but i would rather get it all out there, than have 50 questions that come back or have people not answer due to lack of initial info. also only lets me post a single link right now, so the links are given below dreamincode.net/forums/showtopic14083.htm stackoverflow.com/questions/512436/java-playing-wav-sounds deitel.com/articles/java_tutorials/20060422/LoadingPlayingAudioClips/index.html

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  • UITableView crashes when trying to scroll

    - by Ondrej
    Hi, I have a problem with data in UITableView. I have UIViewController, that contains UITableView outlet and few more things I am using and ... It works :) ... it works lovely, but ... I've created an RSS reader class that is using delegates to deploy the data to the table ... and once again, If I'll just create dummy data in the main controller everything works! problem is with this line: rss.delegate = self; Preview looks a little bit broken than here are those RSS reader files on Google code: (Link to the header file on GoogleCode) (Link to the implementation file on Google code) viewDidLoad function of my controller: IGDataRss20 *rss = [[[IGDataRss20 alloc] init] autorelease]; rss.delegate = self; [rss initWithContentsOfUrl:@"http://rss.cnn.com/rss/cnn_topstories.rss"]; and my delegate methods: - (void)parsingEnded:(NSArray *)result { super.data = [[NSMutableArray alloc] initWithArray:result]; NSLog(@"My Items: %d", [super.data count]); [super.table reloadData]; NSLog(@"Parsing ended"); } (void)parsingError:(NSString *)message { NSLog(@"MyMessage: %@", message); } (void)parsingStarted:(NSXMLParser *)parser { NSLog(@"Parsing started"); } Just to clarify, NSLog(@"Parsing ended"); is being executed and I have 10 items in the array. Ok, here's my RSS reader header file: @class IGDataRss20; @protocol IGDataRss20Delegate @optional (void)parsingStarted:(NSXMLParser *)parser; (void)parsingError:(NSString *)message; (void)parsingEnded:(NSArray *)result; @end @interface IGDataRss20 : NSObject { NSXMLParser *rssParser; NSMutableArray *data; NSMutableDictionary *currentItem; NSString *currentElement; id <IGDataRss20Delegate> delegate; } @property (nonatomic, retain) NSMutableArray *data; @property (nonatomic, assign) id delegate; (void)initWithContentsOfUrl:(NSString *)rssUrl; (void)initWithContentsOfData:(NSData *)inputData; @end And this RSS reader implementation file: #import "IGDataRss20.h" @implementation IGDataRss20 @synthesize data, delegate; (void)initWithContentsOfUrl:(NSString *)rssUrl { self.data = [[NSMutableArray alloc] init]; NSURL *xmlURL = [NSURL URLWithString:rssUrl]; rssParser = [[NSXMLParser alloc] initWithContentsOfURL:xmlURL]; [rssParser setDelegate:self]; [rssParser setShouldProcessNamespaces:NO]; [rssParser setShouldReportNamespacePrefixes:NO]; [rssParser setShouldResolveExternalEntities:NO]; [rssParser parse]; } (void)initWithContentsOfData:(NSData *)inputData { self.data = [[NSMutableArray alloc] init]; rssParser = [[NSXMLParser alloc] initWithData:inputData]; [rssParser setDelegate:self]; [rssParser setShouldProcessNamespaces:NO]; [rssParser setShouldReportNamespacePrefixes:NO]; [rssParser setShouldResolveExternalEntities:NO]; [rssParser parse]; } (void)parserDidStartDocument:(NSXMLParser *)parser { [[self delegate] parsingStarted:parser]; } (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError { NSString * errorString = [NSString stringWithFormat:@"Unable to parse RSS feed (Error code %i )", [parseError code]]; NSLog(@"Error parsing XML: %@", errorString); if ([parseError code] == 31) NSLog(@"Error code 31 is usually caused by encoding problem."); [[self delegate] parsingError:errorString]; } (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { currentElement = [elementName copy]; if ([elementName isEqualToString:@"item"]) currentItem = [[NSMutableDictionary alloc] init]; } (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { if ([elementName isEqualToString:@"item"]) { [data addObject:(NSDictionary *)[currentItem copy]]; } } (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { if (![currentItem objectForKey:currentElement]) [currentItem setObject:[[[NSMutableString alloc] init] autorelease] forKey:currentElement]; [[currentItem objectForKey:currentElement] appendString:string]; } (void)parserDidEndDocument:(NSXMLParser *)parser { //NSLog(@"RSS array has %d items: %@", [data count], data); [[self delegate] parsingEnded:(NSArray *)self.data]; } (void)dealloc { [data, delegate release]; [super dealloc]; } @end Hope someone will be able to help me as I am becoming to be quite desperate, and I thought I am not already such a greenhorn :) Thanks, Ondrej

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  • Possible bug in ASP.NET MVC with form values being replaced.

    - by Dan Atkinson
    I appear to be having a problem with ASP.NET MVC in that, if I have more than one form on a page which uses the same name in each one, but as different types (radio/hidden/etc), then, when the first form posts (I choose the 'Date' radio button for instance), if the form is re-rendered (say as part of the results page), I seem to have the issue that the hidden value of the SearchType on the other forms is changed to the last radio button value (in this case, SearchType.Name). Below is an example form for reduction purposes. <% Html.BeginForm("Search", "Search", FormMethod.Post); %> <%= Html.RadioButton("SearchType", SearchType.Date, true) %> <%= Html.RadioButton("SearchType", SearchType.Name) %> <input type="submit" name="submitForm" value="Submit" /> <% Html.EndForm(); %> <% Html.BeginForm("Search", "Search", FormMethod.Post); %> <%= Html.Hidden("SearchType", SearchType.Colour) %> <input type="submit" name="submitForm" value="Submit" /> <% Html.EndForm(); %> <% Html.BeginForm("Search", "Search", FormMethod.Post); %> <%= Html.Hidden("SearchType", SearchType.Reference) %> <input type="submit" name="submitForm" value="Submit" /> <% Html.EndForm(); %> Resulting page source (this would be part of the results page) <form action="/Search/Search" method="post"> <input type="radio" name="SearchType" value="Date" /> <input type="radio" name="SearchType" value="Name" /> <input type="submit" name="submitForm" value="Submit" /> </form> <form action="/Search/Search" method="post"> <input type="hidden" name="SearchType" value="Name" /> <!-- Should be Colour --> <input type="submit" name="submitForm" value="Submit" /> </form> <form action="/Search/Search" method="post"> <input type="hidden" name="SearchType" value="Name" /> <!-- Should be Reference --> <input type="submit" name="submitForm" value="Submit" /> </form> Please can anyone else with RC1 confirm this? Maybe it's because I'm using an enum. I don't know. I should add that I can circumvent this issue by using 'manual' input () tags for the hidden fields, but if I use MVC tags (<%= Html.Hidden(...) %), .NET MVC replaces them every time. Many thanks. Update: I've seen this bug again today. It seems that this crops its head when you return a posted page and use MVC set hidden form tags with the Html helper. I've contacted Phil Haack about this, because I don't know where else to turn, and I don't believe that this should be expected behaviour as specified by David.

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  • How to have two UIPickerViews together in one ViewController?

    - by 0SX
    I'm trying to put 2 UIPickerViews together in one ViewController. Each UIPickerView has different data arrays. I'm using interface builder to link the pickers up. I know I'll have to use separate delegates and dataSources but I can't seem to hook everything up with interface builder correctly. Here's all my code: pickerTesting.h #import <UIKit/UIKit.h> #import "picker2DataSource.h" @interface pickerTestingViewController : UIViewController <UIPickerViewDelegate, UIPickerViewDataSource>{ IBOutlet UIPickerView *picker; IBOutlet UIPickerView *picker2; NSMutableArray *pickerViewArray; } @property (nonatomic, retain) IBOutlet UIPickerView *picker; @property (nonatomic, retain) IBOutlet UIPickerView *picker2; @property (nonatomic, retain) NSMutableArray *pickerViewArray; @end pickerTesting.m #import "pickerTestingViewController.h" @implementation pickerTestingViewController @synthesize picker, picker2, pickerViewArray; - (void)viewDidLoad { [super viewDidLoad]; pickerViewArray = [[NSMutableArray alloc] init]; [pickerViewArray addObject:@" 100 "]; [pickerViewArray addObject:@" 200 "]; [pickerViewArray addObject:@" 400 "]; [pickerViewArray addObject:@" 600 "]; [pickerViewArray addObject:@" 1000 "]; [picker selectRow:1 inComponent:0 animated:NO]; picker2.delegate = self; picker2.dataSource = self; } - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)picker; { return 1; } - (void)pickerView:(UIPickerView *)picker didSelectRow:(NSInteger)row inComponent:(NSInteger)component { } - (NSInteger)pickerView:(UIPickerView *)picker numberOfRowsInComponent:(NSInteger)component; { return [pickerViewArray count]; } - (NSString *)pickerView:(UIPickerView *)picker titleForRow:(NSInteger)row forComponent:(NSInteger)component; { return [pickerViewArray objectAtIndex:row]; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (void)dealloc { [super dealloc]; } @end And I have a separate class for the other datasource. picker2DataSource.h @interface picker2DataSource : NSObject <UIPickerViewDataSource, UIPickerViewDelegate> { NSMutableArray *customPickerArray; } @property (nonatomic, retain) NSMutableArray *customPickerArray; @end picker2DataSource.m #import "picker2DataSource.h" @implementation picker2DataSource @synthesize customPickerArray; - (id)init { // use predetermined frame size self = [super init]; if (self) { customPickerArray = [[NSMutableArray alloc] init]; [customPickerArray addObject:@" a "]; [customPickerArray addObject:@" b "]; [customPickerArray addObject:@" c "]; [customPickerArray addObject:@" d "]; [customPickerArray addObject:@" e "]; } return self; } - (void)dealloc { [customPickerArray release]; [super dealloc]; } - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)picker2; { return 1; } - (void)pickerView:(UIPickerView *)picker2 didSelectRow:(NSInteger)row inComponent:(NSInteger)component { } - (NSInteger)pickerView:(UIPickerView *)picker2 numberOfRowsInComponent:(NSInteger)component; { return [customPickerArray count]; } - (NSString *)pickerView:(UIPickerView *)picker2 titleForRow:(NSInteger)row forComponent:(NSInteger)component; { return [customPickerArray objectAtIndex:row]; } @end Any help or code examples would be great. Thanks.

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  • UIButtons in UIScrollView stop it scrolling, how to fix?

    - by Mark McFarlane
    Hi all, I have a problem with adding a set of UIButtons to a UIScrollView. With the buttons added it seems that the scroll command is not being passed to the scroll view as the buttons cover the whole surface. I've read various posts on this but still can't figure it out. I'm pretty new to iPhone programming so there's probably something obvious I've missed. I've tried things like canCancelContentTouches and delaysContentTouches to TRUE and FALSE. Here is the code I use to add the buttons to the scrollview. The scrollview was created in IB and is passed in to the function: -(void)drawCharacters:(NSMutableArray *)chars:(UIScrollView *)target_view { //NSLog(@"CLEARING PREVIOUS BUTTONS"); //clear previous buttons for parts/kanji if(target_view == viewParts){ for (UIButton *btn in parts_buttons) { [btn removeFromSuperview]; } [parts_buttons removeAllObjects]; } else if(target_view == viewKanji){ for (UIButton *btn in kanji_buttons) { [btn removeFromSuperview]; } [kanji_buttons removeAllObjects]; } //display options int chars_per_line = 9; //change this to change the number of chars displayed on each line if(target_view == viewKanji){ chars_per_line = 8; } int char_gap = 0; //change this to change the margin between chars int char_dimensions = (320/chars_per_line)-(char_gap*2); //set starting x, y coords int x = 0, y = 0; //increment y coord y += char_gap; //NSLog(@"ABOUT TO DRAW FIRST BUTTON"); for(NSMutableArray *char_arr in chars){ //increment x coord x += char_gap; //draw at x and y UIButton *myButton = [UIButton buttonWithType:UIButtonTypeCustom]; myButton.frame = CGRectMake(x, y, char_dimensions, char_dimensions); // position in the parent view and set the size of the button [myButton setTitle:[char_arr objectAtIndex:0] forState:UIControlStateNormal]; [myButton setTitleColor:[UIColor darkGrayColor] forState:UIControlStateNormal]; [myButton setTitleColor:[UIColor colorWithRed:0.8 green:0.8 blue:0.8 alpha:1.0] forState:UIControlStateDisabled]; myButton.titleLabel.font = [UIFont boldSystemFontOfSize:22]; if(target_view == viewKanji){ myButton.titleLabel.font = [UIFont boldSystemFontOfSize:30]; } // add targets and actions if(target_view == viewParts){ [myButton addTarget:self action:@selector(partSelected:) forControlEvents:UIControlEventTouchUpInside]; } else if(target_view == viewKanji){ [myButton addTarget:self action:@selector(kanjiSelected:) forControlEvents:UIControlEventTouchUpInside]; [myButton setTag:(int)[char_arr objectAtIndex:1]]; } //if the part isnt in the current list of kanji, disable and dim it if(target_view == viewParts){ if([kanji count] > 0){ [myButton setEnabled:NO]; } bool do_break = NO; for(NSMutableArray *arr in kanji){ //NSLog([NSString stringWithFormat:@"CHECKING PARTS AGAINST %d KANJI", [kanji count]]); for(NSString *str in [[arr objectAtIndex:2] componentsSeparatedByString:@" "]){ if(([myButton.titleLabel.text isEqualToString:str])){ //NSLog(@"--------------MATCH!!!-----------------"); [myButton setEnabled:YES]; for(NSString *str1 in parts_selected){ if(([myButton.titleLabel.text isEqualToString:str1])){ [myButton setEnabled:NO]; break; } } do_break = YES; break; } if(do_break) break; } if(do_break) break; } } // add to a view [target_view addSubview:myButton]; //update coords of next button x += char_dimensions+ char_gap; if (x > (320-char_dimensions)) { x = 0; y += char_dimensions + (char_gap*2); } //add button to global array to be removed from view next update if(target_view == viewParts){ [parts_buttons addObject:myButton]; } else if(target_view == viewKanji){ [kanji_buttons addObject:myButton]; } } //NSLog(@"FINISHED DRAWING ALL BUTTONS"); } Any help on this would be greatly appreciated. I just need to fix this to finish my app.

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  • Freezes (not crashes) with GCD, blocks and Core Data

    - by Lukasz
    I have recently rewritten my Core Data driven database controller to use Grand Central Dispatch to manage fetching and importing in the background. Controller can operate on 2 NSManagedContext's: NSManagedObjectContext *mainMoc instance variable for main thread. this contexts is used only by quick access for UI by main thread or by dipatch_get_main_queue() global queue. NSManagedObjectContext *bgMoc for background tasks (importing and fetching data for NSFetchedresultsController for tables). This background tasks are fired ONLY by user defined queue: dispatch_queue_t bgQueue (instance variable in database controller object). Fetching data for tables is done in background to not block user UI when bigger or more complicated predicates are performed. Example fetching code for NSFetchedResultsController in my table view controllers: -(void)fetchData{ dispatch_async([CDdb db].bgQueue, ^{ NSError *error = nil; [[self.fetchedResultsController fetchRequest] setPredicate:self.predicate]; if (self.fetchedResultsController && ![self.fetchedResultsController performFetch:&error]) { NSSLog(@"Unresolved error in fetchData %@", error); } if (!initial_fetch_attampted)initial_fetch_attampted = YES; fetching = NO; dispatch_async(dispatch_get_main_queue(), ^{ [self.table reloadData]; [self.table scrollRectToVisible:CGRectMake(0, 0, 100, 20) animated:YES]; }); }); } // end of fetchData function bgMoc merges with mainMoc on save using NSManagedObjectContextDidSaveNotification: - (void)bgMocDidSave:(NSNotification *)saveNotification { // CDdb - bgMoc didsave - merging changes with main mainMoc dispatch_async(dispatch_get_main_queue(), ^{ [self.mainMoc mergeChangesFromContextDidSaveNotification:saveNotification]; // Extra notification for some other, potentially interested clients [[NSNotificationCenter defaultCenter] postNotificationName:DATABASE_SAVED_WITH_CHANGES object:saveNotification]; }); } - (void)mainMocDidSave:(NSNotification *)saveNotification { // CDdb - main mainMoc didSave - merging changes with bgMoc dispatch_async(self.bgQueue, ^{ [self.bgMoc mergeChangesFromContextDidSaveNotification:saveNotification]; }); } NSfetchedResultsController delegate has only one method implemented (for simplicity): - (void)controllerDidChangeContent:(NSFetchedResultsController *)controller { dispatch_async(dispatch_get_main_queue(), ^{ [self fetchData]; }); } This way I am trying to follow Apple recommendation for Core Data: 1 NSManagedObjectContext per thread. I know this pattern is not completely clean for at last 2 reasons: bgQueue not necessarily fires the same thread after suspension but since it is serial, it should not matter much (there is never 2 threads trying access bgMoc NSManagedObjectContext dedicated to it). Sometimes table view data source methods will ask NSFetchedResultsController for info from bgMoc (since fetch is done on bgQueue) like sections count, fetched objects in section count, etc.... Event with this flaws this approach works pretty well of the 95% of application running time until ... AND HERE GOES MY QUESTION: Sometimes, very randomly application freezes but not crashes. It does not response on any touch and the only way to get it back to live is to restart it completely (switching back to and from background does not help). No exception is thrown and nothing is printed to the console (I have Breakpoints set for all exception in Xcode). I have tried to debug it using Instruments (time profiles especially) to see if there is something hard going on on main thread but nothing is showing up. I am aware that GCD and Core Data are the main suspects here, but I have no idea how to track / debug this. Let me point out, that this also happens when I dispatch all the tasks to the queues asynchronously only (using dispatch_async everywhere). This makes me think it is not just standard deadlock. Is there any possibility or hints of how could I get more info what is going on? Some extra debug flags, Instruments magical tricks or build setting etc... Any suggestions on what could be the cause are very much appreciated as well as (or) pointers to how to implement background fetching for NSFetchedResultsController and background importing in better way.

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  • FreeType2 Bitmap to System::Drawing::Bitmap.

    - by Dennis Roche
    Hi, I'm trying to convert a FreeType2 bitmap to a System::Drawing::Bitmap in C++/CLI. FT_Bitmap has a unsigned char* buffer that contains the data to write. I have got somewhat working save it disk as a *.tga, but when saving as *.bmp it renders incorrectly. I believe that the size of byte[] is incorrect and that my data is truncated. Any hints/tips/ideas on what is going on here would be greatly appreciated. Links to articles explaining byte layout and pixel formats etc. would be helpful. Thanks!! C++/CLI code. FT_Bitmap *bitmap = &face->glyph->bitmap; int width = (face->bitmap->metrics.width / 64); int height = (face->bitmap->metrics.height / 64); // must be aligned on a 32 bit boundary or 4 bytes int depth = 8; int stride = ((width * depth + 31) & ~31) >> 3; int bytes = (int)(stride * height); // as *.tga void *buffer = bytes ? malloc(bytes) : NULL; if (buffer) { memset(buffer, 0, bytes); for (int i = 0; i < glyph->rows; ++i) memcpy((char *)buffer + (i * width), glyph->buffer + (i * glyph->pitch), glyph->pitch); WriteTGA("Test.tga", buffer, width, height); } array<Byte>^ values = gcnew array<Byte>(bytes); Marshal::Copy((IntPtr)glyph->buffer, values, 0, bytes); // as *.bmp Bitmap^ systemBitmap = gcnew Bitmap(width, height, PixelFormat::Format24bppRgb); // create bitmap data, lock pixels to be written. BitmapData^ bitmapData = systemBitmap->LockBits(Rectangle(0, 0, width, height), ImageLockMode::WriteOnly, bitmap->PixelFormat); Marshal::Copy(values, 0, bitmapData->Scan0, bytes); systemBitmap->UnlockBits(bitmapData); systemBitmap->Save("Test.bmp"); Reference, FT_Bitmap typedef struct FT_Bitmap_ { int rows; int width; int pitch; unsigned char* buffer; short num_grays; char pixel_mode; char palette_mode; void* palette; } FT_Bitmap; Reference, WriteTGA bool WriteTGA(const char *filename, void *pxl, uint16 width, uint16 height) { FILE *fp = NULL; fopen_s(&fp, filename, "wb"); if (fp) { TGAHeader header; memset(&header, 0, sizeof(TGAHeader)); header.imageType = 3; header.width = width; header.height = height; header.depth = 8; header.descriptor = 0x20; fwrite(&header, sizeof(header), 1, fp); fwrite(pxl, sizeof(uint8) * width * height, 1, fp); fclose(fp); return true; } return false; }

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  • Validate java SAML signature from C#

    - by Adrya
    How can i validate in .Net C# a SAML signature created in Java? Here is the SAML Signature that i get from Java: <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"> <ds:SignedInfo> <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"> </ds:CanonicalizationMethod> <ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"> </ds:SignatureMethod> <ds:Reference URI="#_e8bcba9d1c76d128938bddd5ae8c68e1"> <ds:Transforms> <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"> </ds:Transform> <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"> <ec:InclusiveNamespaces xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="code ds kind rw saml samlp typens #default xsd xsi"> </ec:InclusiveNamespaces> </ds:Transform> </ds:Transforms> <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"> </ds:DigestMethod> <ds:DigestValue>zEL7mB0Wkl+LtjMViO1imbucXiE=</ds:DigestValue> </ds:Reference> </ds:SignedInfo> <ds:SignatureValue> jpIX3WbX9SCFnqrpDyLj4TeJN5DGIvlEH+o/mb9M01VGdgFRLtfHqIm16BloApUPg2dDafmc9DwL Pyvs3TJ/hi0Q8f0ucaKdIuw+gBGxWFMcj/U68ZuLiv7U+Qe7i4ZA33rWPorkE82yfMacGf6ropPt v73mC0bpBP1ubo5qbM4= </ds:SignatureValue> <ds:KeyInfo> <ds:X509Data> <ds:X509Certificate> MIIDBDCCAeygAwIBAgIIC/ktBs1lgYcwDQYJKoZIhvcNAQEFBQAwNzERMA8GA1UEAwwIQWRtaW5D QTExFTATBgNVBAoMDEVKQkNBIFNhbXBsZTELMAkGA1UEBhMCU0UwHhcNMDkwMjIzMTAwMzEzWhcN MTgxMDE1MDkyNTQyWjBaMRQwEgYDVQQDDAsxMC41NS40MC42MTEbMBkGA1UECwwST24gRGVtYW5k IFBsYXRmb3JtMRIwEAYDVQQLDAlPbiBEZW1hbmQxETAPBgNVBAsMCFNvZnR3YXJlMIGfMA0GCSqG SIb3DQEBAQUAA4GNADCBiQKBgQCk5EqiedxA6WEE9N2vegSCqleFpXMfGplkrcPOdXTRLLOuRgQJ LEsOaqspDFoqk7yJgr7kaQROjB9OicSH7Hhsu7HbdD6N3ntwQYoeNZ8nvLSSx4jz21zvswxAqw1p DoGl3J6hks5owL4eYs2yRHvqgqXyZoxCccYwc4fYzMi42wIDAQABo3UwczAdBgNVHQ4EFgQUkrpk yryZToKXOXuiU2hNsKXLbyIwDAYDVR0TAQH/BAIwADAfBgNVHSMEGDAWgBSiviFUK7DUsjvByMfK g+pm4b2s7DAOBgNVHQ8BAf8EBAMCBaAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDQYJKoZIhvcNAQEF BQADggEBAKb94tnK2obEyvw8ZJ87u7gvkMxIezpBi/SqXTEBK1by0NHs8VJmdDN9+aOvC5np4fOL fFcRH++n6fvemEGgIkK3pOmNL5WiPpbWxrx55Yqwnr6eLsbdATALE4cgyZWHl/E0uVO2Ixlqeygw XTfg450cCWj4yfPTVZ73raKaDTWZK/Tnt7+ulm8xN+YWUIIbtW3KBQbGomqOzpftALyIKLVtBq7L J0hgsKGHNUnssWj5dt3bYrHgzaWLlpW3ikdRd67Nf0c1zOEgKHNEozrtRKiLLy+3bIiFk0CHImac 1zeqLlhjrG3OmIsIjxc1Vbc0+E+z6Unco474oSGf+D1DO+Y= </ds:X509Certificate> </ds:X509Data> </ds:KeyInfo> </ds:Signature> I know to parse SAML, i need to validate the signature. I tried this: public bool VerifySignature() { X509Certificate2 certificate = null; XmlDocument doc = new XmlDocument(); XmlElement xmlAssertionElement = this.GetXml(doc); doc.AppendChild(xmlAssertionElement); // Create a new SignedXml object and pass it // the XML document class. SamlSignedXml signedXml = new SamlSignedXml(xmlAssertionElement); // Get signature XmlElement xmlSignature = this.Signature; if (xmlSignature == null) { return false; } // Load the signature node. signedXml.LoadXml(xmlSignature); // Get the certificate used to sign the assertion if information about this // certificate is available in the signature of the assertion. foreach (KeyInfoClause clause in signedXml.KeyInfo) { if (clause is KeyInfoX509Data) { if (((KeyInfoX509Data)clause).Certificates.Count > 0) { certificate = (X509Certificate2)((KeyInfoX509Data)clause).Certificates[0]; } } } if (certificate == null) { return false; } return signedXml.CheckSignature(certificate, true); } It validates the signature of a SAML signed in .Net but not of this Java one.

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  • Why is my PHP query executing twice on page load?

    - by user1826238
    I am newish to PHP and I seem to be having an issue with an insert statement that executes twice when I open this page to view a document. In the database the 2nd insert is 1 second later. It happens in google chrome only and on this page only. IE has no issue, I dont have firefox to check. view_document.php <?php require_once($_SERVER['DOCUMENT_ROOT'] . '/../includes/core.php'); require_once($_SERVER['DOCUMENT_ROOT'] . '/../includes/connect.php'); $webusername = $_SESSION['webname']; if (isset($_GET['document'])) { $ainumber = (int) $_GET['document']; if (!ctype_digit($_GET['document']) || !preg_match('~^[0-9]+$~',$_GET['document']) || !is_numeric($_GET['document'])) { $_SESSION = array(); session_destroy(); header('Location: login.php'); } else { $stmt = $connect->prepare("SELECT s_filename, s_reference FROM dmsmain WHERE s_ainumber = ?") or die(mysqli_error()); $stmt->bind_param('s', $ainumber); $stmt->execute(); $stmt->bind_result($filename, $reference); $stmt->fetch(); $stmt->close(); $file = $_SERVER['DOCUMENT_ROOT'] . '/../dms/files/'.$filename.'.pdf'; if (file_exists($file)) { header('Content-Type: application/pdf'); header('Content-Disposition: inline; filename='.basename($file)); header('Content-Transfer-Encoding: binary'); header('Content-Length: ' . filesize($file)); header('Accept-Ranges: bytes'); readfile($file); $stmt = $connect->prepare("INSERT INTO dmslog (s_reference, s_userid, s_lastactivity, s_actiontype) VALUES (?, ?, ?, ?)") or die(mysqli_error()); date_default_timezone_set('Africa/Johannesburg'); $date = date('Y-m-d H:i:s'); $actiontype = 'DL'; $stmt->bind_param('ssss', $reference, $webusername, $date, $actiontype); $stmt->execute(); $stmt->close(); } else { $missing = "<b>File not found</b>"; } } } ?> My HTTP access records I assume [15/Nov/2012:10:14:32 +0200] "POST /dms/search.php HTTP/1.1" 200 5783 "http://www.denso.co.za/dms/search.php" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11" [15/Nov/2012:10:14:33 +0200] "GET /favicon.ico HTTP/1.1" 404 - "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11" [15/Nov/2012:10:14:34 +0200] "GET /dms/view_document.php?document=8 HTTP/1.1" 200 2965 "http://www.denso.co.za/dms/search.php" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11" [15/Nov/2012:10:14:35 +0200] "GET /favicon.ico HTTP/1.1" 404 - "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11" I have checked my <img src=''> links and I dont see a problem with them. The records indictate there is a favicon.ico request so I created a blank favicon and placed it in my public_html folder and linked it in the page like so <link href="../favicon.ico" rel="shortcut icon" type="image/x-icon" /> Unfortunately that did not work as the statement still executes twice. I am unsure if it is a favicon issue as my upload page uses an insert query and it executes once. If someone could please tell me where I am going wrong or point me in the right direction I would be very grateful

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  • unsigned char* buffer (FreeType2 Bitmap) to System::Drawing::Bitmap.

    - by Dennis Roche
    Hi, I'm trying to convert a FreeType2 bitmap to a System::Drawing::Bitmap in C++/CLI. FT_Bitmap has a unsigned char* buffer that contains the data to write. I have got somewhat working save it disk as a *.tga, but when saving as *.bmp it renders incorrectly. I believe that the size of byte[] is incorrect and that my data is truncated. Any hints/tips/ideas on what is going on here would be greatly appreciated. Links to articles explaining byte layout and pixel formats etc. would be helpful. Thanks!! C++/CLI code. FT_Bitmap *bitmap = &face->glyph->bitmap; int width = (face->bitmap->metrics.width / 64); int height = (face->bitmap->metrics.height / 64); // must be aligned on a 32 bit boundary or 4 bytes int depth = 8; int stride = ((width * depth + 31) & ~31) >> 3; int bytes = (int)(stride * height); // as *.tga void *buffer = bytes ? malloc(bytes) : NULL; if (buffer) { memset(buffer, 0, bytes); for (int i = 0; i < glyph->rows; ++i) memcpy((char *)buffer + (i * width), glyph->buffer + (i * glyph->pitch), glyph->pitch); WriteTGA("Test.tga", buffer, width, height); } // as *.bmp array<Byte>^ values = gcnew array<Byte>(bytes); Marshal::Copy((IntPtr)glyph->buffer, values, 0, bytes); Bitmap^ systemBitmap = gcnew Bitmap(width, height, PixelFormat::Format24bppRgb); // create bitmap data, lock pixels to be written. BitmapData^ bitmapData = systemBitmap->LockBits(Rectangle(0, 0, width, height), ImageLockMode::WriteOnly, bitmap->PixelFormat); Marshal::Copy(values, 0, bitmapData->Scan0, bytes); systemBitmap->UnlockBits(bitmapData); systemBitmap->Save("Test.bmp"); Reference, FT_Bitmap typedef struct FT_Bitmap_ { int rows; int width; int pitch; unsigned char* buffer; short num_grays; char pixel_mode; char palette_mode; void* palette; } FT_Bitmap; Reference, WriteTGA bool WriteTGA(const char *filename, void *pxl, uint16 width, uint16 height) { FILE *fp = NULL; fopen_s(&fp, filename, "wb"); if (fp) { TGAHeader header; memset(&header, 0, sizeof(TGAHeader)); header.imageType = 3; header.width = width; header.height = height; header.depth = 8; header.descriptor = 0x20; fwrite(&header, sizeof(header), 1, fp); fwrite(pxl, sizeof(uint8) * width * height, 1, fp); fclose(fp); return true; } return false; } Update FT_Bitmap *bitmap = &face->glyph->bitmap; // stride must be aligned on a 32 bit boundary or 4 bytes int depth = 8; int stride = ((width * depth + 31) & ~31) >> 3; int bytes = (int)(stride * height); target = gcnew Bitmap(width, height, PixelFormat::Format8bppIndexed); // create bitmap data, lock pixels to be written. BitmapData^ bitmapData = target->LockBits(Rectangle(0, 0, width, height), ImageLockMode::WriteOnly, target->PixelFormat); array<Byte>^ values = gcnew array<Byte>(bytes); Marshal::Copy((IntPtr)bitmap->buffer, values, 0, bytes); Marshal::Copy(values, 0, bitmapData->Scan0, bytes); target->UnlockBits(bitmapData);

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  • Creating a Comment Anchor

    - by John
    Hello, The function below allows a user to insert a comment into a MySQL table called "comment." Then, the file "comments2.php" displays all comments for a given submission. Right after a user submits a comment, I would like the top of the user's browser to be anchored by the comment the user just submitted. How can I do this? Thanks in advance, John The function: function show_commentbox($submissionid, $submission, $url, $submittor, $submissiondate, $countcomments, $dispurl) { echo '<form action="http://www...com/.../comments/comments2.php" method="post"> <input type="hidden" value="'.$_SESSION['loginid'].'" name="uid"> <input type="hidden" value="'.$submissionid.'" name="submissionid"> <input type="hidden" value="'.stripslashes($submission).'" name="submission"> <input type="hidden" value="'.$url.'" name="url"> <input type="hidden" value="'.$submittor.'" name="submittor"> <input type="hidden" value="'.$submissiondate.'" name="submissiondate"> <input type="hidden" value="'.$countcomments.'" name="countcomments"> <input type="hidden" value="'.$dispurl.'" name="dispurl"> <label class="addacomment" for="title">Add a comment:</label> <textarea class="checkMax" name="comment" type="comment" id="comment" maxlength="1000"></textarea> <div class="commentsubbutton"><input name="submit" type="submit" value="Submit"></div> </form> '; } The file comments2.php contains: $query = sprintf("INSERT INTO comment VALUES (NULL, %d, %d, '%s', NULL)", $uid, $subid, $comment); mysql_query($query) or die(mysql_error()); $submissionid = mysql_real_escape_string($_POST['submissionid']); $submissionid = mysql_real_escape_string($_GET['submissionid']); $sqlStr = "SELECT comment.comment, comment.datecommented, login.username FROM comment LEFT JOIN login ON comment.loginid=login.loginid WHERE submissionid=$submissionid ORDER BY comment.datecommented ASC LIMIT 100"; $tzFrom1 = new DateTimeZone('America/New_York'); $tzTo1 = new DateTimeZone('America/Phoenix'); $result = mysql_query($sqlStr); $arr = array(); echo "<table class=\"commentecho\">"; $count = 1; while ($row = mysql_fetch_array($result)) { $dt1 = new DateTime($row["datecommented"], $tzFrom1); $dt1->setTimezone($tzTo1); echo '<tr>'; echo '<td rowspan="3" class="commentnamecount">'.$count++.'.</td>'; echo '<td class="commentname2"><a href="http://www...com/.../members/index.php?profile='.$row["username"].'">'.$row["username"].'</a></td>'; echo '<td rowspan="3" class="commentname1">'.stripslashes($row["comment"]).'</td>'; echo '</tr>'; echo '<tr>'; echo '<td class="commentname2">'.$dt1->format('F j, Y').'</td>'; echo '</tr>'; echo '<tr>'; echo '<td class="commentname2a">'.$dt1->format('g:i a').'</td>'; echo '</tr>'; } echo "</table>"; The fields in the MySQL table "comment": commentid loginid submissionid comment datecommented

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  • Is C# slower than VB.NET?

    - by Matt Winckler
    Believe it or not, despite the title, this is not a troll. Running some benchmarks this morning, my colleagues and I have discovered some strange things concerning performance, and I am wondering if we're doing something horribly wrong. We started out comparing C# vs. Delphi Prism calculating prime numbers, and found that Prism was about 30% faster. I figured maybe CodeGear did more optimization when generating IL (the exe was about twice as big as C#'s and had all sorts of different IL in it.) So I decided to write a test in VB.NET as well, assuming that Microsoft's compilers would end up writing essentially the same IL for each language. However, the result there was more shocking: C# was more than three times slower than VB running the same operations. The generated IL was different, but not extremely so, and I'm not good enough at reading it to understand the differences. As a fan of C#, this apparent slowness wounds me horribly, and I am left wondering: what in the world is going on here? Is it time to pack it all in and go write web apps in Ruby? ;-) I've included the code for each below--just copy it into a new VB or C# console app, and run. On my machine, VB finds 348513 primes in about 6.36 seconds. C# finds the same number of primes in 21.76 seconds. (I've got an Intel Core2 Quad Q6600 @2.4Ghz; on another Intel machine in the office the code for both runs much faster but the ratio is about the same; on an AMD machine here the timing is ~10 seconds for VB and ~13 for C#--much less difference, but C# is still always slower.) Both of the console applications were compiled in Release mode, but otherwise no project settings were changed from the defaults generated by Visual Studio 2008. Is it a generally-known fact that C#'s generated IL is worse than VB's? Or is this a strange edge case? Or is my code flawed somehow (most likely)? Any insights are appreciated. VB code Imports System.Diagnostics Module Module1 Private temp As List(Of Int32) Private sw As Stopwatch Private totalSeconds As Double Sub Main() serialCalc() End Sub Private Sub serialCalc() temp = New List(Of Int32)() sw = Stopwatch.StartNew() For i As Int32 = 2 To 5000000 testIfPrimeSerial(i) Next sw.Stop() totalSeconds = sw.Elapsed.TotalSeconds Console.WriteLine(String.Format("{0} seconds elapsed.", totalSeconds)) Console.WriteLine(String.Format("{0} primes found.", temp.Count)) Console.ReadKey() End Sub Private Sub testIfPrimeSerial(ByVal suspectPrime As Int32) For i As Int32 = 2 To Math.Sqrt(suspectPrime) If (suspectPrime Mod i = 0) Then Exit Sub End If Next temp.Add(suspectPrime) End Sub End Module C# Code using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Diagnostics; namespace FindPrimesCSharp { class Program { List<Int32> temp = new List<Int32>(); Stopwatch sw; double totalSeconds; static void Main(string[] args) { new Program().serialCalc(); } private void serialCalc() { temp = new List<Int32>(); sw = Stopwatch.StartNew(); for (Int32 i = 2; i <= 5000000; i++) { testIfPrimeSerial(i); } sw.Stop(); totalSeconds = sw.Elapsed.TotalSeconds; Console.WriteLine(string.Format("{0} seconds elapsed.", totalSeconds)); Console.WriteLine(string.Format("{0} primes found.", temp.Count)); Console.ReadKey(); } private void testIfPrimeSerial(Int32 suspectPrime) { for (Int32 i = 2; i <= Math.Sqrt(suspectPrime); i++) { if (suspectPrime % i == 0) return; } temp.Add(suspectPrime); } } }

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  • Tomcat stops responding to JK requests

    - by Bruno Reis
    Hello. I have a nasty issue with load-balanced Tomcat servers that are hanging up. Any help would be greatly appreciated. The system I'm running Tomcat 6.0.26 on HotSpot Server 14.3-b01 (Java 1.6.0_17-b04) on three servers sitting behind another server that acts as load balancer. The load balancer runs Apache (2.2.8-1) + MOD_JK (1.2.25). All of the servers are running Ubuntu 8.04. The Tomcat's have 2 connectors configured: an AJP one, and a HTTP one. The AJP is to be used with the load balancer, while the HTTP is used by the dev team to directly connect to a chosen server (if we have a reason to do so). I have Lambda Probe 1.7b installed on the Tomcat servers to help me diagnose and fix the problem soon to be described. The problem Here's the problem: after about 1 day the application servers are up, JK Status Manager starts reporting status ERR for, say, Tomcat2. It will simply get stuck on this state, and the only fix I've found so far is to ssh the box and restart Tomcat. I must also mention that JK Status Manager takes a lot longer to refresh when there's a Tomcat server in this state. Finally, the "Busy" count of the stuck Tomcat on JK Status Manager is always high, and won't go down per se -- I must restart the Tomcat server, wait, then reset the worker on JK. Analysis Since I have 2 connectors on each Tomcat (AJP and HTTP), I still can connect to the application through the HTTP one. The application works just fine like this, very, very fast. That is perfectly normal, since I'm the only one using this server (as JK stopped delegating requests to this Tomcat). To try to better understand the problem, I've taken a thread dump from a Tomcat which is not responding anymore, and from another one that has been restarted recently (say, 1 hour before). The instance that is responding normally to JK shows most of the TP-ProcessorXXX threads in "Runnable" state, with the following stack trace: java.net.SocketInputStream.socketRead0 ( native code ) java.net.SocketInputStream.read ( SocketInputStream.java:129 ) java.io.BufferedInputStream.fill ( BufferedInputStream.java:218 ) java.io.BufferedInputStream.read1 ( BufferedInputStream.java:258 ) java.io.BufferedInputStream.read ( BufferedInputStream.java:317 ) org.apache.jk.common.ChannelSocket.read ( ChannelSocket.java:621 ) org.apache.jk.common.ChannelSocket.receive ( ChannelSocket.java:559 ) org.apache.jk.common.ChannelSocket.processConnection ( ChannelSocket.java:686 ) org.apache.jk.common.ChannelSocket$SocketConnection.runIt ( ChannelSocket.java:891 ) org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run ( ThreadPool.java:690 ) java.lang.Thread.run ( Thread.java:619 ) The instance that is stuck show most (all?) of the TP-ProcessorXXX threads in "Waiting" state. These have the following stack trace: java.lang.Object.wait ( native code ) java.lang.Object.wait ( Object.java:485 ) org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run ( ThreadPool.java:662 ) java.lang.Thread.run ( Thread.java:619 ) I don't know of the internals of Tomcat, but I would infer that the "Waiting" threads are simply threads sitting on a thread pool. So, if they are threads waiting inside of a thread pool, why wouldn't Tomcat put them to work on processing requests from JK? Solution? So, as I've stated before, the only fix I've found is to stop the Tomcat instance, stop the JK worker, wait the latter's busy count slowly go down, start Tomcat again, and enable the JK worker once again. What is causing this problem? How should I further investigate it? What can I do to solve it? Thanks in advance.

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  • GKTank example is not working.

    - by david
    Hello, I'm trying to get the GKTank example working with 2 iPhones. Both have bluetooth enabled. I start the app on both devices and tap the screen. The Peer Picker comes up and the devices find each other. If I select one device in the list it says "Waiting for {other iPhone}..." forever. On the {other iPhone} the waiting phone gets grayed out. If I select the device to connect to from both devices at the same time both go into waiting state forever... The debug log says this if I select the other iPhone on the debugged device: 2010-05-30 23:20:24.331 GKTank[2433:4e03] handleEvents started (2) 2010-05-30 23:20:25.269 GKTank[2433:4e03] ~ DNSServiceRegister callback: Ref=135f70, Flags=2, ErrorType=0 name=00oRWv-0A..David’s iPhone regtype=_gktank._udp. domain=local. 2010-05-30 23:20:25.375 GKTank[2433:4e03] ~ DNSServiceBrowse callback: Ref=134f30, Flags=2, IFIndex=8 (name=[en2]), ErrorType=0 name=00oRWv-0A..David’s iPhone regtype=_gktank._udp. domain=local. 2010-05-30 23:20:30.691 GKTank[2433:4e03] ~ DNSServiceBrowse callback: Ref=134f30, Flags=2, IFIndex=-3 (name=[]), ErrorType=0 name=00K83eS0A..iPhone von Tamara regtype=_gktank._udp. domain=local. 2010-05-30 23:20:30.855 GKTank[2433:4e03] ~ DNSServiceQueryRecord callback: Ref=13a320, Flags=2, IFIndex=-3 (name=[]), ErrorType=0 fullname=00k83es0a..iphone\032von\032tamara._gktank._udp.local. rrtype=16 rrclass=1 rdlen=18 ttl=7200 2010-05-30 23:20:30.872 GKTank[2433:4e03] ** peer 480260628: oldbusy=0, newbusy=0 2010-05-30 23:20:35.215 GKTank[2433:207] ** Stop resolving? potentially previous resolves 2010-05-30 23:20:35.226 GKTank[2433:207] **** BEGIN RESOLVE: 480260628 and it stays that way. On the second iPhone the device is listed as not available and grayed out. If I select each other at the same time it says this: 2010-05-30 23:24:31.416 GKTank[2442:4e03] handleEvents started (2) 2010-05-30 23:24:32.321 GKTank[2442:4e03] ~ DNSServiceRegister callback: Ref=135120, Flags=2, ErrorType=0 name=006JiAZ0A..David’s iPhone regtype=_gktank._udp. domain=local. 2010-05-30 23:24:32.419 GKTank[2442:4e03] ~ DNSServiceBrowse callback: Ref=134f30, Flags=2, IFIndex=8 (name=[en2]), ErrorType=0 name=006JiAZ0A..David’s iPhone regtype=_gktank._udp. domain=local. 2010-05-30 23:24:57.156 GKTank[2442:4e03] ~ DNSServiceBrowse callback: Ref=134f30, Flags=2, IFIndex=-3 (name=[]), ErrorType=0 name=004_n6C0A..iPhone von Tamara regtype=_gktank._udp. domain=local. 2010-05-30 23:24:57.308 GKTank[2442:4e03] ~ DNSServiceQueryRecord callback: Ref=13a320, Flags=2, IFIndex=-3 (name=[]), ErrorType=0 fullname=004_n6c0a..iphone\032von\032tamara._gktank._udp.local. rrtype=16 rrclass=1 rdlen=18 ttl=7200 2010-05-30 23:24:57.314 GKTank[2442:4e03] ** peer 203104196: oldbusy=0, newbusy=0 2010-05-30 23:25:02.383 GKTank[2442:207] ** Stop resolving? potentially previous resolves 2010-05-30 23:25:02.425 GKTank[2442:207] **** BEGIN RESOLVE: 203104196 2010-05-30 23:25:13.562 GKTank[2442:4e03] ~ DNSServiceQueryRecord callback: Ref=13a320, Flags=2, IFIndex=-3 (name=[]), ErrorType=0 fullname=004_n6c0a..iphone\032von\032tamara._gktank._udp.local. rrtype=16 rrclass=1 rdlen=18 ttl=7200 2010-05-30 23:25:13.569 GKTank[2442:4e03] ** peer 203104196: oldbusy=0, newbusy=1 2010-05-30 23:25:33.660 GKTank[2442:4e03] ~ DNSServiceBrowse callback: Ref=134f30, Flags=0, IFIndex=-3 (name=[]), ErrorType=0 name=004_n6C0A..iPhone von Tamara regtype=_gktank._udp. domain=local. 2010-05-30 23:25:33.671 GKTank[2442:4e03] Peer [203104196] removed? (0). 2010-05-30 23:25:33.683 GKTank[2442:4e03] GKPeer[139f10] 203104196 service count old=1 new=0 2010-05-30 23:25:37.786 GKTank[2442:4e03] ~ DNSServiceBrowse callback: Ref=134f30, Flags=2, IFIndex=-3 (name=[]), ErrorType=0 name=004_n6C0A..iPhone von Tamara regtype=_gktank._udp. domain=local. 2010-05-30 23:25:37.816 GKTank[2442:4e03] GKPeer[139f10] 203104196 service count old=0 new=1 ... and waits forever. Does anybody know whats wrong with this sample??

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  • How do I solve an unresolved external when using C++ Builder packages?

    - by David M
    I'm experimenting with reconfiguring my application to make heaving use of packages. Both I and another developer running a similar experiment are running into a bit of trouble when linking using several different packages. We're probably both doing something wrong, but goodness knows what :) The situation is this: The first package, PackageA.bpl, contains C++ class FooA. The class is declared with the PACKAGE directive. The second package, PackageB.bpl, contains a class inheriting from FooA, called FooB. It includes FooB.h, and the package is built using runtime packages, and links to PackageA by adding a reference to PackageA.bpi. When building PackageB, it compiles fine but linking fails with a number of unresolved externals, the first few of which are: [ILINK32 Error] Error: Unresolved external '__tpdsc__ FooA' referenced from C:\blah\FooB.OBJ [ILINK32 Error] Error: Unresolved external 'FooA::' referenced from C:\blah\FooB.OBJ [ILINK32 Error] Error: Unresolved external '__fastcall FooA::~FooA()' referenced from blah\FooB.OBJ etc. Running TDump on PackageA.bpl shows: Exports from PackageA.bpl 14 exported name(s), 14 export addresse(s). Ordinal base is 1. Sorted by Name: RVA Ord. Hint Name -------- ---- ---- ---- 00002A0C 8 0000 __tpdsc__ FooA 00002AD8 10 0001 __linkproc__ FooA::Finalize 00002AC8 9 0002 __linkproc__ FooA::Initialize 00002E4C 12 0003 __linkproc__ PackageA::Finalize 00002E3C 11 0004 __linkproc__ PackageA::Initialize 00006510 14 0007 FooA:: 00002860 5 0008 FooA::FooA(FooA&) 000027E4 4 0009 FooA::FooA() 00002770 3 000A __fastcall FooA::~FooA() 000028DC 6 000B __fastcall FooA::Method1() const 000028F4 7 000C __fastcall FooA::Method2() const 00001375 2 000D Finalize 00001368 1 000E Initialize 0000610C 13 000F ___CPPdebugHook So the class definitely seems to be exported and available to link. I can see entries for the specific things ILink32 says it's looking for and not finding. Running TDump on the BPI file shows similar entries. Other info The class does descend from TObject, though originally before refactoring into packages it was a normal C++ class. (More detail below. It seems "safer" using VCL-style classes when trying to solve problems with a very Delphi-ish thing like this anyway. Changing this only changes the order of unresolved externals to first not find Method1 and Method2, then others.) Declaration for FooA: class PACKAGE FooA: public TObject { public: FooA(); virtual __fastcall ~FooA(); FooA(const FooA&); virtual __fastcall long Method1() const; virtual __fastcall long Method2() const; }; and FooB: class FooB: public FooA { public: FooB(); virtual __fastcall ~FooB(); ... other methods... }; All methods definitely are implemented in the .cpp files, so it's not not finding them because they don't exist! The .cpp files also contain #pragma package(smart_init) near the top, under the includes. Questions that might help... Are packages reliable using C++, or are they only useable with Delphi code? Is linking to the first package by adding a reference to its BPI correct - is that how you're supposed to do it? I could use a LIB but it seems to make the second package much larger, and I suspect it's statically linking in the contents of the first. Can we use the PACKAGE directive only on TObject-derived classes? There is no compiler warning using it on standard C++ classes. Is splitting code into packages the best way to achieve the goal of isolating code and communicating through defined layers / interfaces? I've been investigating this path because it seems to be the C++Builder / Delphi Way, and if it worked it looks attractive. But are there better alternatives? I'm very new to using packages and have only known about them through using components before. Any general words of advice would be great! We're using C++Builder 2010. I've fabricated the class and method names in the above code examples, but other than that the details are exactly what we're seeing. Cheers, David

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  • Code Golf: Finite-state machine!

    - by Adam Matan
    Finite state machine A deterministic finite state machine is a simple computation model, widely used as an introduction to automata theory in basic CS courses. It is a simple model, equivalent to regular expression, which determines of a certain input string is Accepted or Rejected. Leaving some formalities aside, A run of a finite state machine is composed of: alphabet, a set of characters. states, usually visualized as circles. One of the states must be the start state. Some of the states might be accepting, usually visualized as double circles. transitions, usually visualized as directed arches between states, are directed links between states associated with an alphabet letter. input string, a list of alphabet characters. A run on the machine begins at the starting state. Each letter of the input string is read; If there is a transition between the current state and another state which corresponds to the letter, the current state is changed to the new state. After the last letter was read, if the current state is an accepting state, the input string is accepted. If the last state was not an accepting state, or a letter had no corresponding arch from a state during the run, the input string is rejected. Note: This short descruption is far from being a full, formal definition of a FSM; Wikipedia's fine article is a great introduction to the subject. Example For example, the following machine tells if a binary number, read from left to right, has an even number of 0s: The alphabet is the set {0,1}. The states are S1 and S2. The transitions are (S1, 0) -> S2, (S1, 1) -> S1, (S2, 0) -> S1 and (S2, 1) -> S2. The input string is any binary number, including an empty string. The rules: Implement a FSM in a language of your choice. Input The FSM should accept the following input: <States> List of state, separated by space mark. The first state in the list is the start state. Accepting states begin with a capital letter. <transitions> One or more lines. Each line is a three-tuple: origin state, letter, destination state) <input word> Zero or more characters, followed by a newline. For example, the aforementioned machine with 1001010 as an input string, would be written as: S1 s2 S1 0 s2 S1 1 S1 s2 0 S1 s2 1 s2 1001010 Output The FSM's run, written as <State> <letter> -> <state>, followed by the final state. The output for the example input would be: S1 1 -> S1 S1 0 -> s2 s2 0 -> S1 S1 1 -> S1 S1 0 -> s2 s2 1 -> s2 s2 0 -> S1 ACCEPT For the empty input '': S1 ACCEPT For 101: S1 1 -> S1 S1 0 -> s2 s2 1 -> s2 REJECT For '10X': S1 1 -> S1 S1 0 -> s2 s2 X REJECT Prize A nice bounty will be given to the most elegant and short solution. Reference implementation A reference Python implementation will be published soon.

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  • How should I clean up hung grandchild processes when an alarm trips in Perl?

    - by brian d foy
    I have a parallelized automation script which needs to call many other scripts, some of which hang because they (incorrectly) wait for standard input. That's not a big deal because I catch those with alarm. The trick is to shut down those hung grandchild processes when the child shuts down. I thought various incantations of SIGCHLD, waiting, and process groups could do the trick, but they all block and the grandchildren aren't reaped. My solution, which works, just doesn't seem like it is the right solution. I'm not especially interested in the Windows solution just yet, but I'll eventually need that too. Mine only works for Unix, which is fine for now. I wrote a small script that takes the number of simultaneous parallel children to run and the total number of forks: $ fork_bomb <parallel jobs> <number of forks> $ fork_bomb 8 500 This will probably hit the per-user process limit within a couple of minutes. Many solutions I've found just tell you to increase the per-user process limit, but I need this to run about 300,000 times, so that isn't going to work. Similarly, suggestions to re-exec and so on to clear the process table aren't what I need. I'd like to actually fix the problem instead of slapping duct tape over it. I crawl the process table looking for the child processes and shut down the hung processes individually in the SIGALRM handler, which needs to die because the rest of real code has no hope of success after that. The kludgey crawl through the process table doesn't bother me from a performance perspective, but I wouldn't mind not doing it: use Parallel::ForkManager; use Proc::ProcessTable; my $pm = Parallel::ForkManager->new( $ARGV[0] ); my $alarm_sub = sub { kill 9, map { $_->{pid} } grep { $_->{ppid} == $$ } @{ Proc::ProcessTable->new->table }; die "Alarm rang for $$!\n"; }; foreach ( 0 .. $ARGV[1] ) { print "."; print "\n" unless $count++ % 50; my $pid = $pm->start and next; local $SIG{ALRM} = $alarm_sub; eval { alarm( 2 ); system "$^X -le '<STDIN>'"; # this will hang alarm( 0 ); }; $pm->finish; } If you want to run out of processes, take out the kill. I thought that setting a process group would work so I could kill everything together, but that blocks: my $alarm_sub = sub { kill 9, -$$; # blocks here die "Alarm rang for $$!\n"; }; foreach ( 0 .. $ARGV[1] ) { print "."; print "\n" unless $count++ % 50; my $pid = $pm->start and next; setpgrp(0, 0); local $SIG{ALRM} = $alarm_sub; eval { alarm( 2 ); system "$^X -le '<STDIN>'"; # this will hang alarm( 0 ); }; $pm->finish; } The same thing with POSIX's setsid didn't work either, and I think that actually broke things in a different way since I'm not really daemonizing this. Curiously, Parallel::ForkManager's run_on_finish happens too late for the same clean-up code: the grandchildren are apparently already disassociated from the child processes at that point.

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  • Object hierarchy returned by WCF Service is different than expected

    - by robalot
    Good Day Everyone... My understanding may be wrong, but I thought once you applied the correct attributes the DataContractSerializer would render fully-qualified instances back to the caller. The code runs and the objects return. But oddly enough, once I look at the returned objects I noticed the namespacing disappeared and the object-hierarchy being exposed through the (web applications) service reference seems to become "flat" (somehow). Now, I expect this from a web-service…but not through WFC. Of course, my understanding of what WFC can do may be wrong. ...please keep in mind I'm still experimenting with all this. So my questions are… Q: Can I do something within the WFC Service to force the namespacing to render through the (service reference) data client proxy? Q: Or perhaps, am I (merely) consuming the service incorrectly? Q: Is this even possible? The service code looks like… [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)] public class DataService : IFishData { public C1FE GetC1FE(Int32 key) { //… more stuff here … } public Project GetProject(Int32 key) { //… more stuff here … } } [ServiceContract] [ServiceKnownType(typeof(wcfFISH.StateManagement.C1FE.New))] [ServiceKnownType(typeof(wcfFISH.StateManagement.Project.New))] public interface IFishData { [OperationContract] C1FE GetC1FE(Int32 key); [OperationContract] Project GetProject(Int32 key); } [DataContract] [KnownType(typeof(wcfFISH.StateManagement.ObjectState))] public class Project { [DataMember] public wcfFISH.StateManagement.ObjectState ObjectState { get; set; } //… more stuff here … } [DataContract] KnownType(typeof(wcfFISH.StateManagement.ObjectState))] public class C1FE { [DataMember] public wcfFISH.StateManagement.ObjectState ObjectState { get; set; } //… more stuff here … } [DataContract(Namespace = "wcfFISH.StateManagement")] [KnownType(typeof(wcfFISH.StateManagement.C1FE.New))] [KnownType(typeof(wcfFISH.StateManagement.Project.New))] public abstract class ObjectState { //… more stuff here … } [DataContract(Namespace = "wcfFISH.StateManagement.C1FE", Name="New")] [KnownType(typeof(wcfFISH.StateManagement.ObjectState))] public class New : ObjectState { //… more stuff here … } [DataContract(Namespace = "wcfFISH.StateManagement.Project", Name = "New")] [KnownType(typeof(wcfFISH.StateManagement.ObjectState))] public class New : ObjectState { //… more stuff here … } The web application code looks like… public partial class Fish_Invite : BaseForm { protected void btnTest_Click(object sender, EventArgs e) { Project project = new Project(); project.Get(base.ProjectKey, base.AsOf); mappers.Project mapProject = new mappers.Project(); srFish.Project fishProject = new srFish.Project(); srFish.FishDataClient fishService = new srFish.FishDataClient(); mapProject.MapTo(project, fishProject); fishProject = fishService.AddProject(fishProject, IUser.UserName); project = null; } } In case I’m not being clear… The issue arises as there is a difference in (the name spacing) that I expect to see (returned) is different from what is actually returned. fishProject.ObjectState should look like... srFish.StateManagement.Project.New fishC1FE.ObjectState should look like... srFish.StateManagement.C1FE.New fishProject.ObjectState looks like... srFish.New1 fishC1FE.ObjectState looks like... srFish.New …“Help me Obi-Wan Kenobi, you’re my only hope!”

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  • How to access a PHP Web Service from ASP.Net?

    - by Steve Johnson
    I am trying use a web service in a C# ASP.Net Web Application. The service is built in php and is located on some remote server not under my control so i cant modify it to add meta data or something else into it. When i use the "Add Web Reference" option in Visual Studio 2008, I receive the following error: The HTML document does not contain Web service discovery information. while trying to add the following web service. https://subreg.forpsi.com/robot2/subreg_command.php?wsdl The web service functions are exposed and displayed in Visual Studio 2008. however i could not add the reference to it for use in ASP.Net Application. t3Service" Description Methods __construct ( ) create_contact ( ) get_contact ( ) get_domain_info ( ) get_last_error_code ( ) get_last_error_msg ( ) get_NSSET ( ) get_owner_mail ( ) login ( ) register_domain ( ) register_domain_with_admin_contacts ( ) renew_domain ( ) request_sendmail ( ) send_auth_info ( ) transfer_domain ( ) I also tried the wsdl.exe method by retrieving the xml and copying it to a wsdl file and generating a proxy class. But the wsdl output contains warnings and the proxy class generated skips the exposed fucntions and generates something like this: // CODEGEN: The operation binding 'create_contact' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'get_contact' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'get_domain_info' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'get_last_error_code' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'get_last_error_msg' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'get_NSSET' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'get_owner_mail' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'send_auth_info' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'transfer_domain' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'request_sendmail' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'login' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'register_domain' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'register_domain_with_admin_contacts' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. // CODEGEN: The operation binding 'renew_domain' from namespace 'urn:t3' was ignored. Each message part in an use=encoded message must specify a type. Any help in this regard will be highly appreciated. Regards

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  • Is there a way to edit a control's template based on the default template?

    - by Adam S
    I'm trying to make just a few minor tweaks to the default template of a checkbox. Now I understand how to make a new template from scratch, but this I do not know. I did manage to (I think?) extract the default template via the method here. And it spat out: <ControlTemplate TargetType="CheckBox" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mwt="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Luna"> <BulletDecorator Background="#00FFFFFF" SnapsToDevicePixels="True"> <BulletDecorator.Bullet> <mwt:BulletChrome Background="{TemplateBinding Panel.Background}" BorderBrush="{TemplateBinding Border.BorderBrush}" BorderThickness="{TemplateBinding Border.BorderThickness}" RenderMouseOver="{TemplateBinding UIElement.IsMouseOver}" RenderPressed="{TemplateBinding ButtonBase.IsPressed}" IsChecked="{TemplateBinding ToggleButton.IsChecked}" /> </BulletDecorator.Bullet> <ContentPresenter RecognizesAccessKey="True" Content="{TemplateBinding ContentControl.Content}" ContentTemplate="{TemplateBinding ContentControl.ContentTemplate}" ContentStringFormat="{TemplateBinding ContentControl.ContentStringFormat}" Margin="{TemplateBinding Control.Padding}" HorizontalAlignment="{TemplateBinding Control.HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding Control.VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}" /> </BulletDecorator> <ControlTemplate.Triggers> <Trigger Property="ContentControl.HasContent"> <Setter Property="FrameworkElement.FocusVisualStyle"> <Setter.Value> <Style TargetType="IFrameworkInputElement"> <Style.Resources> <ResourceDictionary /> </Style.Resources> <Setter Property="Control.Template"> <Setter.Value> <ControlTemplate> <Rectangle Stroke="#FF000000" StrokeThickness="1" StrokeDashArray="1 2" Margin="14,0,0,0" SnapsToDevicePixels="True" /> </ControlTemplate> </Setter.Value> </Setter> </Style> </Setter.Value> </Setter> <Setter Property="Control.Padding"> <Setter.Value> <Thickness>2,0,0,0</Thickness> </Setter.Value> </Setter> <Trigger.Value> <s:Boolean>True</s:Boolean> </Trigger.Value> </Trigger> <Trigger Property="UIElement.IsEnabled"> <Setter Property="TextElement.Foreground"> <Setter.Value> <DynamicResource ResourceKey="{x:Static SystemColors.GrayTextBrushKey}" /> </Setter.Value> </Setter> <Trigger.Value> <s:Boolean>False</s:Boolean> </Trigger.Value> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> Okay, sure, looks just fine I guess. I don't have enough experience to know if that looks like it's right or not. Now, I get two errors: Assembly 'PresentationFramework.Luna' was not found. Verify that you are not missing an assembly reference. Also, verify that your project and all referenced assemblies have been built. and The type 'mwt:BulletChrome' was not found. Verify that you are not missing an assembly reference and that all referenced assemblies have been built. Now I'm wondering, how can I resolve these errors so that I can actually start working on the template? Is there a better way of going about this? My boss wants a three-state checkbox with a red square instead of green, and he won't take no for an answer.

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  • Overriding Object.Equals() instance method in C#; now Code Analysis / FxCop warning CA2218: "should

    - by Chris W. Rea
    I've got a complex class in my C# project on which I want to be able to do equality tests. It is not a trivial class; it contains a variety of scalar properties as well as references to other objects and collections (e.g. IDictionary). For what it's worth, my class is sealed. To enable a performance optimization elsewhere in my system (an optimization that avoids a costly network round-trip), I need to be able to compare instances of these objects to each other for equality – other than the built-in reference equality – and so I'm overriding the Object.Equals() instance method. However, now that I've done that, Visual Studio 2008's Code Analysis a.k.a. FxCop, which I keep enabled by default, is raising the following warning: warning : CA2218 : Microsoft.Usage : Since 'MySuperDuperClass' redefines Equals, it should also redefine GetHashCode. I think I understand the rationale for this warning: If I am going to be using such objects as the key in a collection, the hash code is important. i.e. see this question. However, I am not going to be using these objects as the key in a collection. Ever. Feeling justified to suppress the warning, I looked up code CA2218 in the MSDN documentation to get the full name of the warning so I could apply a SuppressMessage attribute to my class as follows: [SuppressMessage("Microsoft.Naming", "CA2218:OverrideGetHashCodeOnOverridingEquals", Justification="This class is not to be used as key in a hashtable.")] However, while reading further, I noticed the following: How to Fix Violations To fix a violation of this rule, provide an implementation of GetHashCode. For a pair of objects of the same type, you must ensure that the implementation returns the same value if your implementation of Equals returns true for the pair. When to Suppress Warnings ----- Do not suppress a warning from this rule. [arrow & emphasis mine] So, I'd like to know: Why shouldn't I suppress this warning as I was planning to? Doesn't my case warrant suppression? I don't want to code up an implementation of GetHashCode() for this object that will never get called, since my object will never be the key in a collection. If I wanted to be pedantic, instead of suppressing, would it be more reasonable for me to override GetHashCode() with an implementation that throws a NotImplementedException? Update: I just looked this subject up again in Bill Wagner's good book Effective C#, and he states in "Item 10: Understand the Pitfalls of GetHashCode()": If you're defining a type that won't ever be used as the key in a container, this won't matter. Types that represent window controls, web page controls, or database connections are unlikely to be used as keys in a collection. In those cases, do nothing. All reference types will have a hash code that is correct, even if it is very inefficient. [...] In most types that you create, the best approach is to avoid the existence of GetHashCode() entirely. ... that's where I originally got this idea that I need not be concerned about GetHashCode() always.

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  • Need Help Setting Transparent Image to Clipboard

    - by AMissico
    I need help setting a transparent image to the clipboard. I keep getting "handle is invalid". Following is the specific code with the complete working project at ftp://missico.net/ImageVisualizer.zip. This is an image Debug Visualizer class library, but I made to run as executable for testing. (Note that window is a toolbox window and show in taskbar is set to false.) I was tired of having to perform a screen capture on the toolbox window, open with an image editor, and then deleting the background added due to the screen capture. So I thought I would quickly put the transparent image onto the clipboard. Well, the problem is...no transparency support for Clipboard.SetImage. Google to the rescue...not quite. This is what I have so far pulled from a number of sources. See the code for the main reference. My problem is the "invalid handle" when using CF_DIBV5. I imagine the problem is related to BITMAPV5HEADER and CreateDIBitmap. Any help from you GDI/GDI+ Wizards would be greatly appreciated. public static void SetClipboardData(Bitmap bitmap, IntPtr hDC) { const uint SRCCOPY = 0x00CC0020; const int CF_DIBV5 = 17; const int CF_BITMAP = 2; //'reference //'http://social.msdn.microsoft.com/Forums/en-US/winforms/thread/816a35f6-9530-442b-9647-e856602cc0e2 IntPtr memDC = CreateCompatibleDC(hDC); IntPtr memBM = CreateCompatibleBitmap(hDC, bitmap.Width, bitmap.Height); SelectObject(memDC, memBM); using (Graphics g = Graphics.FromImage(bitmap)) { IntPtr hBitmapDC = g.GetHdc(); IntPtr hBitmap = bitmap.GetHbitmap(); SelectObject(hBitmapDC, hBitmap); BitBlt(memDC, 0, 0, bitmap.Width, bitmap.Height, hBitmapDC, 0, 0, SRCCOPY); if (!OpenClipboard(IntPtr.Zero)) { throw new System.Runtime.InteropServices.ExternalException("Could not open Clipboard", new Win32Exception()); } if (!EmptyClipboard()) { throw new System.Runtime.InteropServices.ExternalException("Unable to empty Clipboard", new Win32Exception()); } //IntPtr hClipboard = SetClipboardData(CF_BITMAP, memBM); //works but image is not transparent //all my attempts result in SetClipboardData returning hClipboard = IntPtr.Zero IntPtr hClipboard = SetClipboardData(CF_DIBV5, memBM); //because if (hClipboard == IntPtr.Zero) { // InnerException: System.ComponentModel.Win32Exception // Message="The handle is invalid" // ErrorCode=-2147467259 // NativeErrorCode=6 // InnerException: throw new System.Runtime.InteropServices.ExternalException("Could not put data on Clipboard", new Win32Exception()); } if (!CloseClipboard()) { throw new System.Runtime.InteropServices.ExternalException("Could not close Clipboard", new Win32Exception()); } g.ReleaseHdc(hBitmapDC); } } private void __copyMenuItem_Click(object sender, EventArgs e) { //'Applications that I have verified can paste the clipboard custom data format PNG are: //' Word 2003 //' Excel 2003 using (Graphics g = __pictureBox.CreateGraphics()) { IntPtr hDC = g.GetHdc(); MemoryStream ms = new MemoryStream(); __pictureBox.Image.Save(ms, ImageFormat.Png); ms.Seek(0, SeekOrigin.Begin); Image imag = Image.FromStream(ms); // Derive BitMap object using Image instance, so that you can avoid the issue //"a graphics object cannot be created from an image that has an indexed pixel format" Bitmap img = new Bitmap(new Bitmap(imag)); SetClipboardData(img, hDC); g.ReleaseHdc(); } }

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