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  • Can't get NSTableView to display data.

    - by Alberto
    Hi! I see there are a lot of questions about this, but nothing helped me to get this work. I have a nib with a NSTableView with three columns (with the right identifiers set) and a class named ShortcutsTableController. In the nib I have a NSObject with class value ShortcutsTableController. I also connected the NSTableView to my controller as I usually do. This is header ShortcutsTableController.h. #import <Cocoa/Cocoa.h> @interface ShortcutsTableController : NSObject <NSTableViewDataSource> { IBOutlet NSTableView *shortcutsTable; NSMutableArray *shortcutsList; } - (int) numberOfRowsInTableView: (NSTableView*) tableView; - (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row; @property (assign) IBOutlet NSTableView *shortcutsTable; - (void)setUpTable; @end And this is the implementation file ShortcutsTableController.m. #import "ShortcutsTableController.h" @implementation ShortcutsTableController @synthesize shortcutsTable; - (void)setUpTable { shortcutsList = [[NSMutableArray alloc] init]; NSDictionary *dict1 = [NSDictionary dictionaryWithObjectsAndKeys: @"blabla", @"nameColumn", @"Bla bla bla", @"shortcutColumn", @"Ribla", @"actionColumn", nil]; [shortcutsList addObject:dict1]; [shortcutsTable setDataSource:self]; [shortcutsTable reloadData]; } -(int) numberOfRowsInTableView: (NSTableView *) tableView { return [shortcutsList count]; } - (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row { if (row != -1) return [[shortcutsList objectAtIndex:row] objectForKey:[tableColumn identifier]]; return nil; } @end But when i try to build nothing appears in the NSTableView. No errors, no warnings. Note that I call setUpTable from within the Delegate Class Method awakeFromNib. Is there something I am doing wrong? Thank you for you help. —Albé UPDATE. Added lines @property (assign) IBOutlet NSTableView *shortcutsTable; in header and @synthesize shortcutsTable; in implementation. Nothing changes. :(

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  • NSPredicates, scopes and SearchDisplayController

    - by Bryan Veloso
    Building a search with some custom objects and three scopes: All, Active, and Former. Got it working with the below code: - (void)filterContentForSearchText:(NSString*)searchText scope:(NSString *)scope { [[self filteredArtists] removeAllObjects]; for (HPArtist *artist in [self artistList]) { if ([scope isEqualToString:@"All"] || [[artist status] isEqualToString:scope]) { NSComparisonResult result = [[artist displayName] compare:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])]; if (result == NSOrderedSame) { [[self filteredArtists] addObject:artist]; } } } } This works fine and takes scope into account. Since I wanted to search four fields at at time, this question helped me come up with the below code: - (void)filterContentForSearchText:(NSString*)searchText scope:(NSString *)scope { [[self filteredArtists] removeAllObjects]; NSPredicate *resultPredicate = [NSPredicate predicateWithFormat:@"familyName CONTAINS[cd] %@ OR familyKanji CONTAINS[cd] %@ OR givenName CONTAINS[cd] %@ OR givenKanji CONTAINS[cd] %@", searchText, searchText, searchText, searchText]; [[self filteredArtists] addObjectsFromArray:[[self artistList] filteredArrayUsingPredicate:resultPredicate]]; } However it no longer takes scope into account. I have been playing around with if statements, adding AND scope == 'Active', etc. to the end of the statement and using NSCompoundPredicates to no avail. Whenever I activate a scope, I'm not getting any matches for it. Just a note that I've seen approaches like this one that take scope into account, however they only search inside one property.

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  • actionscript 3 addchild within child and fade

    - by steve
    Here is my current code: import flash.display.*; import fl.transitions.*; import flash.events.MouseEvent; stop(); var container:MovieClip = new MovieClip(); container.width = 450; container.height = 450; container.x = 450; container.y = 0; var closeBtn:close_btn = new close_btn(); closeBtn.x = 850; closeBtn.y = 15; var bagLink:MovieClip = new bag_link_mc(); bagLink.x = 900; bagLink.y = 0; menu_bag_button.addEventListener(MouseEvent.CLICK, bagClick); function bagClick(event:MouseEvent):void{ if(MovieClip(root).currentFrame == 850) { } else { MovieClip(root).addChild (bagLink); MovieClip(root).addChild (closeBtn); MovieClip(root).gotoAndPlay(806); } } closeBtn.addEventListener(MouseEvent.CLICK, closeBag); function closeBag (event:MouseEvent):void{ MovieClip(root).removeChild(bagLink); MovieClip(root).removeChild(closeBtn); MovieClip(root).gotoAndPlay(850); } I need the first mouse function (bagClick) to create the bagLink within the container movieclip variable. I tried change it to this, but it didn't work: else { MovieClip(root).addchild (container); MovieClip(root).container.addChild (bagLink); MovieClip(root).addChild (closeBtn); MovieClip(root).gotoAndPlay(806); } I'm also trying to make "container" or "bagLink" fade in when it loads but that doesn't work either. Any help is appreciated.

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  • actionscript 3 addchild within child and fade

    - by steve
    Here is my current code: import flash.display.*; import fl.transitions.*; import flash.events.MouseEvent; stop(); var container:MovieClip = new MovieClip(); container.width = 450; container.height = 450; container.x = 450; container.y = 0; var closeBtn:close_btn = new close_btn(); closeBtn.x = 850; closeBtn.y = 15; var bagLink:MovieClip = new bag_link_mc(); bagLink.x = 900; bagLink.y = 0; menu_bag_button.addEventListener(MouseEvent.CLICK, bagClick); function bagClick(event:MouseEvent):void{ if(MovieClip(root).currentFrame == 850) { } else { MovieClip(root).addChild (bagLink); MovieClip(root).addChild (closeBtn); MovieClip(root).gotoAndPlay(806); } } closeBtn.addEventListener(MouseEvent.CLICK, closeBag); function closeBag (event:MouseEvent):void{ MovieClip(root).removeChild(bagLink); MovieClip(root).removeChild(closeBtn); MovieClip(root).gotoAndPlay(850); } I need the first mouse function (bagClick) to create the bagLink within the container movieclip variable. I tried change it to this, but it didn't work: else { MovieClip(root).addchild (container); MovieClip(root).container.addChild (bagLink); MovieClip(root).addChild (closeBtn); MovieClip(root).gotoAndPlay(806); } I'm also trying to make "container" or "bagLink" fade in when it loads but that doesn't work either. Any help is appreciated.

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  • jQuery partial page refresh after form submit

    - by heeboir
    When using jQuery to submit a form is it possible to place the resulting page (after the submit) inside another HTML element? I'll try to make this clearer. Up to now I've been using Callback methods that among others do a document.forms['form'].submit(); whenever a form has been updated with new information and needs to be refreshed. However, this results in a full page refresh. I'm implementing Partial Page Refresh using jQuery and thought of using something like var newContent = jQuery('#form').submit(); jQuery('#div').load(newContent); However, that does not seem to work as the page is still fully refreshed. The content is correct, however the behaviour seems to be exactly the same as before - so I'm not really sure if what I want is actually possible with jQuery. Any hints and pointers would be helpful. Thanks.

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  • Android WebView - cannot understand - Null or empty value for header "if-none-match"

    - by ganesh
    Hi When i tried to load a url i get an exception as below Uncaught handler: thread WebViewCoreThread exiting due to uncaught exception 06-16 10:22:31.471: ERROR/AndroidRuntime(635): java.lang.RuntimeException: Null or empty value for header "if-none-match" 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.net.http.Request.addHeader(Request.java:161) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.net.http.Request.addHeaders(Request.java:179) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.net.http.Request.<init>(Request.java:132) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.net.http.RequestQueue.queueRequest(RequestQueue.java:480) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.net.http.RequestHandle.createAndQueueNewRequest(RequestHandle.java:419) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.net.http.RequestHandle.setupRedirect(RequestHandle.java:195) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.webkit.LoadListener.doRedirect(LoadListener.java:1216) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.webkit.LoadListener.handleMessage(LoadListener.java:220) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.os.Handler.dispatchMessage(Handler.java:99) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.os.Looper.loop(Looper.java:123) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at android.webkit.WebViewCore$WebCoreThread.run(WebViewCore.java:471) 06-16 10:22:31.471: ERROR/AndroidRuntime(635): at java.lang.Thread.run(Thread.java:1060) the code i am using is webview = (WebView)findViewById(R.id.generalwebview); webview.getSettings().setJavaScriptEnabled(true); webview.setWebViewClient(new WebViewClient() { public boolean shouldOverrideUrlLoading(WebView view, String url) { Log.i("ReserveBooking", "Processing webview url click..."); view.loadUrl(url); return true; } public void onPageFinished(WebView view, String url) { Log.i("ReserveBooking", "Finished loading URL: " +url); } public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { Log.e("ReserveBooking", "Error: " + description); Toast.makeText(ReserveBooking.this, description, Toast.LENGTH_SHORT).show(); } }); webview.loadUrl(utls); and when i changed the emulator, this programs works without any error .Please help me to know the reason why i get this error ,is this error somehow related to cache? ,I shall be glad if someone explains ganesh

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  • Exposing a pointer in Boost.Python

    - by Goose Bumper
    I have this very simple C++ class: class Tree { public: Node *head; }; BOOST_PYTHON_MODULE(myModule) { class_<Tree>("Tree") .def_readwrite("head",&Tree::head) ; } I want to access the head variable from Python, but the message I see is: No to_python (by-value) converter found for C++ type: Node* From what I understand, this happens because Python is freaking out because it has no concept of pointers. How can I access the head variable from Python? I understand I should use encapsulation, but I'm currently stuck with needing a non-encapsulation solution.

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  • Compile time Meta-programming, with string literals.

    - by Hassan Syed
    I'm writing some code which could really do with some simple compile time metaprogramming. It is common practise to use empty-struct tags as compile time symbols. I need to decorate the tags with some run-time config elements. static variables seem the only way to go (to enable meta-programming), however static variables require global declarations. to side step this Scott Myers suggestion (from the third edition of Effective C++), about sequencing the initialization of static variables by declaring them inside a function instead of as class variables, came to mind. So I came up with the following code, my hypothesis is that it will let me have a compile-time symbols with string literals use-able at runtime. I'm not missing anything I hope. template<class Instance> class TheBestThing { public: void set_name(const char * name_in) { get_name() = std::string(name_in); } void set_fs_location(const char * fs_location_in) { get_fs_location() = std::string(fs_location_in); } std::string & get_fs_location() { static std::string fs_location; return fs_location; } std::string & get_name() { static std::string name; return name; } }; struct tag {}; int main() { TheBestThing<tag> x; x.set_name("xyz"); x.set_fs_location("/etc/lala"); ImportantObject<x> SinceSlicedBread; }

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  • How set EnqueueCallBack to my generic callback

    - by CrazyJoe
    using System; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Ink; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using Microsistec.Domain; using Microsistec.Client; using Microsoft.VisualStudio.TestTools.UnitTesting; using System.Collections.Generic; using Microsistec.Tools; using System.Json; using Microsistec.SystemConfig; using System.Threading; using Microsoft.Silverlight.Testing; namespace Test { [TestClass] public class SampleTest : SilverlightTest { [TestMethod, Asynchronous] public void login() { List<PostData> data = new List<PostData>(); data.Add(new PostData("email", "xxx")); data.Add(new PostData("password", MD5.GetHashString("xxx"))); WebClient.sendData(Config.DataServerURL + "/user/login", data, LoginCallBack); EnqueueCallback(?????????); EnqueueTestComplete(); } [Asynchronous] public void LoginCallBack(object sender, System.Net.UploadStringCompletedEventArgs e) { string json = Microsistec.Client.WebClient.ProcessResult(e); var result = JsonArray.Parse(json); Assert.Equals("1", result["value"].ToString()); TestComplete(); } } Im tring to set ???????? value but my callback is generic, it is setup on my WebClient .SendData, how i implement my EnqueueCallback to a my already functio LoginCallBack???

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  • Best way to learn iphone audio queue services, step by step tutorial

    - by optician
    Hi Everyone, I'm trying to learn how to handle audio at a fairly low level with audio queue services. I have been progrmaing in memory managed languages for quite a while, and have just completed the c programing tutorial by vtc (2007). This has left me comfortable with the understanding of pointers and memory allocation, but the apple documention still leaves me wanting for a simpler implenation and explaination. Maybe I need to learn objective c and cocoa better. I have heard that this book is good. Cocoa(R) Programming for Mac(R) OS X (3rd Edition) Could someone suggest a learning path that is going to help me get an better understanding of working with audio and an iphone. I want to be able to play mp3 files back and also alter the pitch of them as they are playing. I am prepared that I may have to temporarily convert the mp3 files into pcm files to do things like that to them. Thanks everyone.

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  • Running and managing NSTimer in different NSThread/NSRunLoop

    - by mips
    I'm writing a Cocoa application, with a GUI designed in Interface Builder. I need to schedule background activity (at regular intervals) without blocking the UI, so I run it in a separate thread, like this: - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { [self performSelectorInBackground:@selector(schedule) withObject:nil]; } - (void) schedule { NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; NSRunLoop* runLoop = [NSRunLoop currentRunLoop]; timer = [[NSTimer scheduledTimerWithTimeInterval:FEED_UPDATE_INTERVAL target:activityObj selector:@selector(run:) userInfo:nil repeats:YES] retain]; [runLoop run]; [pool release]; } I retain the timer, so I can easily invalidate and reschedule. Problem: I must also fire the run: method in response to GUI events, so it is synchronous (i.e. a "perform activity" button). Like this: [timer fire]; I could do this with performSelectorInBackground too, and of course it doesn't block the UI. But this synchronous firings run in another runloop! So I have no guarantee that they won't overlap. How can I queue all of my firings on the same runloop?

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  • Dynamically loaded control - how can I access a value in Page_Init

    - by Sam
    I am loading a LinkButton dynamically when a user clicks on another LinkButton. I am attaching an event handler to it. When the user clicks on the dynamically loaded LinkButton, the event does not fire. From what I've been reading, I understand this is because when the page posts back the dynamically loaded control no longer exists. It looks like I'm supposed to make sure this control is recreated in Page_Init. The dynamically created LinkButton is dependedent on a value (Product ID). I need someway to access this value so I can properly create the control. ViewState is not accessible and I'm concerned if I use Session it could time out and then that wouldn't help. Any ideas? Also, I hardcoded a Product ID value just for testing, and that still did not cause the event to fire. Is there something else I need to do? protected void Page_Init(object sender, EventArgs e) { SetTabText(1, 1); } SetTabText calls SetActionLinks which creates the LinkButton: protected Panel SetActionLinks(int prodID, int tabID) { ... LinkButton lnkBtn = new LinkButton(); lnkBtn.ID = "lnkBtn" + rand.Next().ToString(); lnkBtn.CommandName = "action"; lnkBtn.Command += new CommandEventHandler(this.lnkAction_Command); panel.Controls.Add(lnkBtn); ... } void lnkAction_Command(object sender, CommandEventArgs e) { LinkButton btn = (LinkButton)sender; switch (btn.CommandArgument) { AddCart(); } }

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  • Storing callbacks in a dictionary (Objective C for the iPhone)

    - by Casebash
    I am trying to store callbacks in a dictionary. I can't use blocks as the iPhone doesn't support this (unless you use plblocks). I tried using functions, but apparently NSMutableDictionary doesn't allow these pointers (wants an id) I tried using class methods, but I couldn't find a way to obtain a pointer to these I could try using functions with the c++ stl hashmap (if it is supported in Objective C++), but apparently this can slow compilation times. I could try storing both a class and a selector, but that seems rather messy. What would be the best way to do this?

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  • How to keep track of TextPointer in WPF RichTextBox?

    - by Alan Spark
    I'm trying to get my head around the TextPointer class in a WPF RichTextBox. I would like to be able to keep track of them so that I can associate information with areas in the text. I am currently working with a very simple example to try and figure out what is going on. In the PreviewKeyDown event I am storing the caret position and then in the PreviewKeyUp event I am creating a TextRange based on the before and after caret positions. Here is a code sample that illustrates what I am trying to do: // The caret position before typing private TextPointer caretBefore = null; private void rtbTest_PreviewKeyDown(object sender, KeyEventArgs e) { // Store caret position caretBefore = rtbTest.CaretPosition; } private void rtbTest_PreviewKeyUp(object sender, KeyEventArgs e) { // Get text between before and after caret positions TextRange tr = new TextRange(caretBefore, rtbTest.CaretPosition); MessageBox.Show(tr.Text); } The problem is that the text that I get is blank. For example, if I type the character 'a' then I would expect to find the text "a" in the TextRange. Does anyone know what is going wrong? It could be something very simple but I've spent an afternoon getting nowhere. I am trying to embrace the new WPF technology but find that the RichTextBox in particular is so complicated that it makes even doing simple things like this difficult. If anyone has any links that do a good job of explaining the TextPointer, I would appreciate it if you can let me know.

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  • UIImageWriteToSavedPhotosAlbum with malloc_error

    - by lbalves
    I have an NIB file with a button. When I click this button, the setWallpaper: selector is called. Everything works as expected (the image is saved), excepte by the error thrown by malloc. malloc: *** error for object 0x184d000: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug I've set a breakpoint at malloc_error_break, but I don't understand anything from the debugger. I couldn't even find the object 0x184d000. Does anyone know why is this happening? I had also tried to retain the UIImage before sending it to UIImageWriteToSavedPhotosAlbum, but without success. My code is below: - (IBAction)setWallpaper:(id)sender { UIImage *image = [UIImage imageNamed:@"wallpaper_01.png"]; UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil); } - (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo { UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Galo!!!",@"Saved image message: title") message:NSLocalizedString(@"Now, check your \"saved photos\" group at \"photos\" app in your iPhone and select the actions menu > set as wallpaper.",@"Saved image message") delegate:nil cancelButtonTitle:NSLocalizedString(@"OK",@"OK Button") otherButtonTitles:nil]; [alertView show]; [alertView release]; }

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  • iPhone Keyboard hiding fields in UIWebView

    - by Pete
    Hi, I am a beginner at iPhone development and am hoping someone can help me with my question. I have a UIWebView displaying a web page. If the user taps inside a textbox on the web page then the keyboard pops up. This is great, but it hides the field that the user tapped on. I have looked around and found code samples to deal with this, but none that specifically deal with the UIWebView. I have implemented UIKeyboardDidShowNotification and UIKeyboardDidHideNotification but am not sure how to resize the UIWebView properly. I have tried putting the UIWebView in a UIScrollView but not had any success with that. The code below seems to adjust the UIWebView but won't let it scroll to the field. -(void) keyboardDidShow: (NSNotification *)notif{ if (keyboardShown) return; NSLog(@"Keyboard Show"); NSDictionary *info = [notif userInfo]; NSValue *aValue = [info objectForKey:UIKeyboardBoundsUserInfoKey]; CGSize keyboardSize = [aValue CGRectValue].size; CGRect viewFrame = webBrowser.frame; viewFrame.size.height -= keyboardSize.height; webBrowser.frame = viewFrame; keyboardShown = YES; } -(void) keyboardDidHide: (NSNotification *)notif{ NSLog(@"Keyboard hide"); keyboardShown = NO; } Hopefully someone can help me or point me in the right direction. Thanks! Pete

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  • ASP.NET MVC Get a list of users with particular profile properties

    - by Sam Huggill
    Hi, I'm using ASP.NET MVC 1 and I have added a custom Profile class using the WebProfile Builder VS add-in (found here: http://code.msdn.microsoft.com/WebProfileBuilder/Release/ProjectReleases.aspx?ReleaseId=980). On one of my forms I want a drop-down list of all users who share a specific profile value in common. I can see that I can get a list of all users using: Membership.GetAllUsers() However I cannot see how to get all users who have a specific profile value, which in my case is CellId. Am I approaching this in the right way? I have used membership roles to define which users are administrators etc, but profiles seems like the right place to group users. Any pointers both in specifics of how to access the user list but also comments on whether am I pursuing the right avenue here would be greatly appreciated. Many thanks, Sam

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  • flex tabnavigator skin flicker

    - by Proyb2
    I am try to skin my tabnavigator with PNG, and extend with TabSkin.as and SelectedTabSkin.as, however, when I tried to mouseover, it will caused a flicker into black and load the tab image which I define. What can I do to avoid flicker? TabSkin.as same as SelectedTabSkin.as but different image package { import mx.controls.Image; public class TabSkin extends Image { public function TabSkin():void { super(); } override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void { super.updateDisplayList(unscaledWidth, unscaledHeight); } } } Tab.MXML TabNavigator { tabHeight: 39; tab-width: 108; tabOffset: 1; tabStyleName: "tab"; } .tab { fillColors: #000000, #000000; up-skin: ClassReference("TabSkin"); down-skin: ClassReference("TabSkin"); over-skin: ClassReference("TabSkin"); selected-up-skin: ClassReference("SelectedTabSkin"); selected-down-skin: ClassReference("SelectedTabSkin"); selected-over-skin: ClassReference("SelectedTabSkin"); } .selectedTab { font-weight: bold; corner-radius: 0; } <mx:TabNavigator x="223" y="82" width="100%" height="100%" id="tab2"/>

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  • Retrieving well formed HTML using Jericho HTML parser in Java

    - by Raj
    Hello, I've looked at jTidy for converting a snipped of malformed/real-world HTML into well-formed HTML/XHTML. However, there's a bug in the latest version due to which I'm not able to use it. I'm looking at Jericho since it has a lot of positive reviews around the net. However, its not immediately obvious to me how one would go about implementing a method like: public String getValidHTML(String messedUpHTML) For instance, if it was passed <div>bar, it would return <div>bar</div> Any pointers would be helpful. Thanks in advance!

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  • How to find (in javascript) the current "scroll" offset in mobile safari / iphone

    - by mintywalker
    I'd like to know the x/y offset of the how far the user has "scrolled" within the viewport in mobile safari on the iphone. Put another way, if I (through javascript) reloaded the current page, I'd like to find the values I'd need to pass into window.scrollTo(...) in order to reposition the document/viewport as it is currently. window.pageXOffset always reports 0 jquery's $('body').scrollTop() always reports 0 events have a pageX, but this won't account for the scrolling of the page that happens after you release your finger if your gesture was to "flick" the page up/down. Namely, it'll give me a point when the finger leaves the screen, but that doesn't always match where the page will be after it's finished scrolling. Any pointers?

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  • GridView doesn't remember state between postbacks

    - by Ryan
    Hi, I have a simple ASP page with databound grid (bound to an object source). The grid is within the page of a wizard and has a 'select' checkbox for each row. In one stage of the wizard, I bind the GridView: protected void Wizard1_NextButtonClick(object sender, WizardNavigationEventArgs e) { ... // Bind and display matches GridViewMatches.EnableViewState = true; GridViewMatches.DataSource = getEmailRecipients(); GridViewMatches.DataBind(); And when the finish button is clicked, I iterate through the rows and check what's selected: protected void Wizard1_FinishButtonClick(object sender, WizardNavigationEventArgs e) { // Set the selected values, depending on the checkboxes on the grid. foreach (GridViewRow gr in GridViewMatches.Rows) { Int32 personID = Convert.ToInt32(gr.Cells[0].Text); CheckBox selected = (CheckBox) gr.Cells[1].FindControl("CheckBoxSelectedToSend"); But at this stage GridViewMatches.Rows.Count = 0! I don't re-bind the grid, I shouldn't need to, right? I expect the view-state to maintain the state. (Also, if I do rebind the grid, my selection checkboxes will be cleared) NB: This page also dynamically adds user controls in OnInit method. I have heard that it might mess with the view state, but as far as I can tell, I am doing it correctly and the viewstate for those added controls seems to work (values are persisted between postbacks) Thanks a lot in advance for any help! Ryan UPDATE: Could this be to do with the fact I am setting the datasource programatically? I wondered if the asp engine was databinding the grid during the page lifecycle to a datasource that was not yet defined. (In a test page, the GridView is 'automatically' databound'. I don't want the grid to re-bound I just want the values from the viewstate from the previous post! Also, I have this in the asp header: ViewStateEncryptionMode="Never" - this was to resolve an occasional 'Invalid Viewstate Validation MAC' message Thanks again Ryan

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  • Java JDBC: Reply.fill()

    - by Harv
    Hi, I get the following exception at times: com.ibm.db2.jcc.b.gm: [jcc][t4][2030][11211][3.50.152] A communication error occurred during operations on the connection's underlying socket, socket input stream, or socket output stream. Error location: Reply.fill(). Message: Connection reset. ERRORCODE=-4499, SQLSTATE=08001 The problem is that, the code executes successfully for quite some time and then suddenly I get this exception. However it runs perfrectly when I run the code again. Could some one please tell me what could be wrong and provide me some pointers to resolve this. Thanks, Harveer

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  • How to right-justify icon in a JLabel?

    - by geoffreyzheng
    For a JLabel with icon, if you setHorizontalTextPosition(SwingConstants.LEADING), the icon is painted right after text, no matter how wide the label is. This is particularly bad for a list, as the icons would be all over the place depending on how long the text is for each item. I traced the code and it seems to be that in SwingUtilities#layoutCompoundLabelImpl, text width is simply set to SwingUtilities2.stringWidth(c, fm, text), and icon x is set to follow text without considering label width. Here is the simplest case: import java.awt.*; import javax.swing.*; public class TestJLabelIcon { public static void main(String args[]) { EventQueue.invokeLater(new Runnable() { public void run() { JLabel c = new JLabel("abc"); c.setHorizontalTextPosition(SwingConstants.LEADING); c.setHorizontalAlignment(SwingConstants.LEADING); c.setIcon(UIManager.getIcon("FileChooser.detailsViewIcon")); c.setBorder(BorderFactory.createLineBorder(Color.RED)); JFrame frame = new JFrame(); frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); frame.getContentPane().add(c); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } } You can see that label always fills the frame but icon stays put. You'll get the mirror problem if you set both arguments to TRAILING. I know I can override the UI, or use a JPanel, etc. I just wonder if I'm missing something simple in JLabel. If not, it seems like a Java bug. FYI this is jdk1.6.0_06 on Windows XP.

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  • CALayer won't display

    - by Paul from Boston
    I'm trying to learn how to use CALayers for a project and am having trouble getting sublayers to display. I created a vanilla View-based iPhone app in XCode for these tests. The only real code is in the ViewController which sets up the layers and their delegates. There is a delegate, DelegateMainView, for the viewController's view layer and a second different one, DelegateStripeLayer, for an additional layer. The ViewController code is all in awakeFromNib, - (void)awakeFromNib { DelegateMainView *oknDelegate = [[DelegateMainView alloc] init]; self.view.layer.delegate = oknDelegate; CALayer *newLayer = [CALayer layer]; DelegateStripeLayer *sldDelegate = [[DelegateStripeLayer alloc] init]; newLayer.delegate = sldDelegate; [self.view.layer addSublayer:newLayer]; [newLayer setNeedsDisplay]; [self.view.layer setNeedsDisplay]; } The two different delegates are simply wrappers for the CALayer delegate method, drawLayer:inContext:, i.e., - (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)context { CGRect bounds = CGContextGetClipBoundingBox(context); ... do some stuff here ... CGContextStrokePath(context); } each a bit different. The layer, view.layer, is drawn properly but newLayer is never drawn. If I put breakpoints in the two delegates, the program stops in DelegateMainView but never reaches DelegateStripeLayer. What am I missing here? Thanks.

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  • Print the first line of a file

    - by Pedro
    void cabclh(){ FILE *fp; char *val, aux; int i=0; char *result, cabeca[60]; fp=fopen("trabalho.txt","r"); if(fp==NULL){ printf("Erro ao abrir o ficheiro\n"); return ; } val=(char*)calloc(aux, sizeof(char)); while(fgetc(fp)=='\n'){ fgets(cabeca,60,fp); printf("%s\n",cabeca); } fclose(fp); free(fp); } void infos(){ FILE *fp; char info[100]; fp=fopen("trabalho.txt","r"); if(fp==NULL){ printf("Erro ao abrir o ficheiro\n"); } while(fgetc(fp)=='-'){ fgets(info,100,fp); printf("%s\n",info); } fclose(fp); } At cabclh i want that the program recognize that the first line is header..but this code doesn't print nothing At infos i want that he recognize that every lines that begin with '-' are info...

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