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  • Hiding Command Prompt with CodeDomProvider

    - by j-t-s
    Hi All I've just got my own little custom c# compiler made, using the article from MSDN. But, when I create a new Windows Forms application using my sample compiler, the MSDOS window also appears, and if I close the DOS window, my WinForms app closes too. How can I tell the Compiler? not to show the MSDOS window at all? Thank you :) Here's my code: using System; namespace JTS { public class CSCompiler { protected string ot, rt, ss, es; protected bool rg, cg; public string Compile(String se, String fe, String[] rdas, String[] fs, Boolean rn) { System.CodeDom.Compiler.CodeDomProvider CODEPROV = System.CodeDom.Compiler.CodeDomProvider.CreateProvider("CSharp"); ot = fe; System.CodeDom.Compiler.CompilerParameters PARAMS = new System.CodeDom.Compiler.CompilerParameters(); // Ensure the compiler generates an EXE file, not a DLL. PARAMS.GenerateExecutable = true; PARAMS.OutputAssembly = ot; PARAMS.CompilerOptions = "/target:winexe"; PARAMS.ReferencedAssemblies.Add(typeof(System.Xml.Linq.Extensions).Assembly.Location); PARAMS.LinkedResources.Add("this.ico"); foreach (String ay in rdas) { if (ay.Contains(".dll")) PARAMS.ReferencedAssemblies.Add(ay); else { string refd = ay; refd = refd + ".dll"; PARAMS.ReferencedAssemblies.Add(refd); } } System.CodeDom.Compiler.CompilerResults rs = CODEPROV.CompileAssemblyFromFile(PARAMS, fs); if (rs.Errors.Count > 0) { foreach (System.CodeDom.Compiler.CompilerError COMERR in rs.Errors) { es = es + "Line number: " + COMERR.Line + ", Error number: " + COMERR.ErrorNumber + ", '" + COMERR.ErrorText + ";" + Environment.NewLine + Environment.NewLine; } } else { // Compilation succeeded. es = "Compilation Succeeded."; if (rn) System.Diagnostics.Process.Start(ot); } return es; } } }

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  • Hiding Command Prompt with CodeDomProvider

    - by j-t-s
    Hi All I've just got my own little custom c# compiler made, using the article from MSDN. But, when I create a new Windows Forms application using my sample compiler, the MSDOS window also appears, and if I close the DOS window, my WinForms app closes too. How can I tell the Compiler? not to show the MSDOS window at all? Thank you :) Here's my code: using System; namespace JTS { public class CSCompiler { protected string ot, rt, ss, es; protected bool rg, cg; public string Compile(String se, String fe, String[] rdas, String[] fs, Boolean rn) { System.CodeDom.Compiler.CodeDomProvider CODEPROV = System.CodeDom.Compiler.CodeDomProvider.CreateProvider("CSharp"); ot = fe; System.CodeDom.Compiler.CompilerParameters PARAMS = new System.CodeDom.Compiler.CompilerParameters(); // Ensure the compiler generates an EXE file, not a DLL. PARAMS.GenerateExecutable = true; PARAMS.OutputAssembly = ot; PARAMS.CompilerOptions = "/target:winexe"; PARAMS.ReferencedAssemblies.Add(typeof(System.Xml.Linq.Extensions).Assembly.Location); PARAMS.LinkedResources.Add("this.ico"); foreach (String ay in rdas) { if (ay.Contains(".dll")) PARAMS.ReferencedAssemblies.Add(ay); else { string refd = ay; refd = refd + ".dll"; PARAMS.ReferencedAssemblies.Add(refd); } } System.CodeDom.Compiler.CompilerResults rs = CODEPROV.CompileAssemblyFromFile(PARAMS, fs); if (rs.Errors.Count > 0) { foreach (System.CodeDom.Compiler.CompilerError COMERR in rs.Errors) { es = es + "Line number: " + COMERR.Line + ", Error number: " + COMERR.ErrorNumber + ", '" + COMERR.ErrorText + ";" + Environment.NewLine + Environment.NewLine; } } else { // Compilation succeeded. es = "Compilation Succeeded."; if (rn) System.Diagnostics.Process.Start(ot); } return es; } } }

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  • C# graphics flickering

    - by David
    Hello, I am working on kind of drawing program but I have a problem with flickering while moving a mouse cursor while drawing a rubberband line. I hope you can help me to remove that flickering of line, here is the code: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace GraphicsTest { public partial class Form1 : Form { int xFirst, yFirst; Bitmap bm = new Bitmap(1000, 1000); Graphics bmG; Graphics xG; Pen pen = new Pen(Color.Black, 1); bool draw = false; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { bmG = Graphics.FromImage(bm); xG = this.CreateGraphics(); bmG.Clear(Color.White); } private void Form1_MouseDown(object sender, MouseEventArgs e) { xFirst = e.X; yFirst = e.Y; draw = true; } private void Form1_MouseUp(object sender, MouseEventArgs e) { bmG.DrawLine(pen, xFirst, yFirst, e.X, e.Y); draw = false; xG.DrawImage(bm, 0, 0); } private void Form1_MouseMove(object sender, MouseEventArgs e) { if (draw) { xG.DrawImage(bm, 0, 0); xG.DrawLine(pen, xFirst, yFirst, e.X, e.Y); } } private void Form1_Paint(object sender, PaintEventArgs e) { xG.DrawImage(bm, 0, 0); } } }

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  • How to solve timing problems in automated UI tests with C# and Visual Studio?

    - by Lernkurve
    Question What is the standard approach to solve timing problems in automated UI tests? Concrete example I am using Visual Studio 2010 and Team Foundation Server 2010 to create automated UI tests and want to check whether my application has really stopped running: [TestMethod] public void MyTestMethod() { Assert.IsTrue(!IsMyAppRunning(), "App shouldn't be running, but is."); StartMyApp(); Assert.IsTrue(IsMyAppRunning(), "App should have been started and should be running now."); StopMyApp(); //Pause(500); Assert.IsTrue(!IsMyAppRunning(), "App was stopped and shouldn't be running anymore."); } private bool IsMyAppRunning() { foreach (Process runningProcesse in Process.GetProcesses()) { if (runningProcesse.ProcessName.Equals("Myapp")) { return true; } } return false; } private void Pause(int pauseTimeInMilliseconds) { System.Threading.Thread.Sleep(pauseTimeInMilliseconds); } StartMyApp() and StopMyApp() have been recorded with MS Test Manager 2010 and reside in UIMap.uitest. The last assert fails because the assertion is executed while my application is still in the process of shutting down. If I put a delay after StopApp() the test case passes. The above is just an example to explain my problem. What is the standard approach to solve these kinds of timing issues? One idea would be to wait with the assertion until I get some event notification that my app has been stopped.

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  • Problem with saveToFile

    - by zp26
    Hi, I have a problem with a NSData writeToFile. I have implemented the code below but i have an anomaly. When i run my program on the simulator, the new file is created and the informations are stored; when i build the app in my device , the file isn't created. The debug don't give me any error but don/t save anything. Can you help me? Thanks so much and sorry for my english. -(void)saveXML:(NSString*)name:(float)x:(float)y:(float)z{ NSMutableData *data = [NSMutableData data]; NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data]; [archiver setOutputFormat:NSPropertyListXMLFormat_v1_0]; [archiver encodeFloat:x forKey:@"x"]; [archiver encodeFloat:y forKey:@"y"]; [archiver encodeFloat:z forKey:@"z"]; [archiver encodeObject:name forKey:@"name"]; [archiver finishEncoding]; BOOL result = [data writeToFile:@"XML Position" atomically:YES]; if(result) [self updateTextView:@"success"]; [archiver release]; }

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  • NSDate out of scope

    - by therealtkd
    Having problems with out of scope for NSDate in an iphone app. I have an interface defined like this: @interface MyObject : NSoObject { NSMutableArray *array; BOOL checkThis; NSDate *nextDue; } Now in the implementation I have this: -(id) init { if( (self=[super init]) ) { checkThis = NO; array = [[NSMutableArray alloc] init]; nextDue = [[NSDate date] retain]; NSDate *testDate = [NSDate date]; } return self; } Now, if I trace through the init, before I actually assign the variables checkThis shows as boolean. array shows as pointer 0x0 because it hasn't ben assigned. But the nextDue is showing as 'out of scope'. I don't understand why this is out of scope but the other variables aren't. If I trace through the code until after the variables are assigned, array now shows as being correctly assigned but nextDue is still out of scope. Interestingly, the testDate variable is assigned just fine and the debugger shows this as a valid date. Further interesting point is if I move the mouse over the testDate variable while I am debugging, it shows as an 'NSDate *' type which I would expect since that's its definition. Yet the nextDue, which to me is defined the same way is showing as a '_NSCFDate *'. Any googling I did on the subject said that the retain is the problem, but its actually out of scope before I even try to assign the variable. However, in another class, the same definition for NSDate work ok. It shows as nil before a value is assigned to it. Arghhh

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  • Why is there unreachable code here?

    - by Richard
    I am writing a c# app and want to output error messages to either the console or a messagebox (Depending on the app type: enum AppTypeChoice { Console, Windows } ), and also control wether the app keeps running or not ( bool StopOnError ). I came up with this method that will check all the criteria, but I'm getting an "unreachable code detected" warning. I can't see why! Here is the whole method (Brace yourselves for some hobbyist code!) public void OutputError(string message) { string standardMessage = "Something went WRONG!. [ But I'm not telling you what! ]"; string defaultMsgBoxTitle = "Aaaaarrrggggggggggg!!!!!"; string dosBoxOutput = "\n\n*** " + defaultMsgBoxTitle + " *** \n\n Message was: '" + message + "'\n\n"; AppTypeChoice appType = DataDefs.AppType; DebugLevelChoice level = DataDefs.DebugLevel; // Decide how much info we should give out here... if (level != DebugLevelChoice.None) { // Give some info.... if (appType == AppTypeChoice.Windows) MessageBox.Show(message, defaultMsgBoxTitle, MessageBoxButtons.OK, MessageBoxIcon.Error); else Console.WriteLine(dosBoxOutput); } else { // Be very secretive... if (appType == AppTypeChoice.Windows) MessageBox.Show(standardMessage, defaultMsgBoxTitle, MessageBoxButtons.OK, MessageBoxIcon.Error); else Console.WriteLine(standardMessage); } // Decide if app falls over or not.. if (DataDefs.StopOnError == true) Environment.Exit(0); // UNREACHABLE CODE HERE } Also, while I have your attention, to get the app type, I'm just using a constant at the top of the file (ie. AppTypeChoice.Console in a Console app etc) - is there a better way of doing this (i mean finding out in code if it is a DOS or Windows app)? Also, I noticed that I can use a messagebox with a fully-qualified path in a Console app...How bad is is to do that ( I mean, will I get tarred and feathered when other developers see it?!) Thanks for your help

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  • Utilizing Windows Handles without a forum.

    - by Scott Chamberlain
    I have a program that needs to sit in the background and when a user connects to a RDP session it will do some stuff then launch a program. when the program is closed it will do some housekeeping and logoff the session. The current way I am doing it is like this I have the terminal server launch this application. I have it set as a windows forms application and my code is this public static void Main() { //Do some setup work Process proc = new Process(); //setup the process proc.Start(); proc.WaitForExit(); //Do some housecleaning NativeMethods.ExitWindowsEx(0, 0); } I really like this because there is no item in the taskbar and there is nothing showing up in alt-tab. However to do this I gave up access to functions like void WndProc(ref Message m) So Now I can't listen to windows messages (Like WTS_REMOTE_DISCONNECT or WTS_SESSION_LOGOFF) and do not have a handle to use for for bool WTSRegisterSessionNotification(IntPtr hWnd, int dwFlags); I would like my code to be more robust so it will do the housecleaning if the user logs off or disconnects from the session before he closes the program. Any reccomendations on how I can have my cake and eat it too?

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  • How do I represent concurrent actions in jBPM, any of which can end a process?

    - by tpdi
    An example: a permit must be examined by two lawyers and one engineer. If any of those three reject it, the process enters a "rejected" end state. If all three grant the permit, it enters a "granted" end state. All three examiners may examine simultaneously, or in any order. Once one engineer has granted it, it shouldn't be available to be examined by an engineer; once two lawyers have examined it, it shouldn't be available to lawyers; once one engineer and two lawyers have examined it should go to the granted end state. My initial thinking is that either I have a overly complicated state transition diagram, with "the same" intermediate states multiply repeated, or I carry (external) state with the process { bool rejected; int engineerSignoffId; int lawyer1SignoffId; int lawyer2SignoffId}. Or something like this? If so, how does the engineer's rejection terminate the subprocess that is in "Lawyers"? START->FORK->Engineer->Granted?---------------->Y->JOIN-->Granted |->Lawyers-->Granted?->by 2 lawyers?->Y---^ ^ | |--------------------------N What's the canonical jBPM answer to this? Can you point me to examples or documentation of such answers? Thanks.

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  • POSTing JSON data to WCF REST

    - by Randall Sexton
    I'm trying to send data from a client application using jQuery to a REST WCF service based on the WCF REST starter kit. Here's what I have so far. Service Definition: [WebHelp(Comment = "Save PropertyValues to the database")] [WebInvoke(Method = "POST", UriTemplate = "PropertyValues_Save", BodyStyle = WebMessageBodyStyle.WrappedRequest, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)] [OperationContract] public bool PropertyValues_Save(Guid assetId, Dictionary<Guid, string> newValues) { ... } Call from the client: $.ajax({ url:SVC_PROPERTYVALUES_SAVE, type: "POST", contentType: "application/json; charset=utf-8", data: jsonData, dataType: "json", error: function(XMLHttpRequest, textStatus, errorThrown) { alert(textStatus + ' ' + errorThrown); }, success: function(data) { if (data) { alert('Values saved'); $("#confirmSubmit").dialog('close'); } else { alert('Values failed to save'); $("#confirmSubmit").dialog('close'); } } }); Example of the JSON being passed: { "assetId": "d70714c3-e403-4cc5-b8a9-9713d05b2ee0", "newValues": [ { "key": "bd01aa88-b48d-47c7-8d3f-eadf47a46680", "value": "0e9fdf34-2d12-4639-8d70-19b88e753ab1" }, { "key": "06e8eda2-a004-450e-90ab-64df357013cf", "value": "1d490aec-f40e-47d5-865c-07fe9624f955" } ] } I'm using Windows Authentication on the virtual directory. When I call operations that are GETs, everything is fine. This code is prompting the browser to log in. When I enter my credentials, I simply get an alert in my browser which says "error undefined". Even if you can't help my specific error, do you see anything that looks wrong from glancing? I've been beating my head on this nearly all day. Thanks in advance.

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  • Join + IEqualityComparer<T> and HashCode

    - by Jesus Rodriguez
    Im writing my own LINQ reference but Im getting troubles with some of the more complicated operators implementations. There is a Join implementation that takes a IEqualityComparer Im getting just crazy. Im trying to understand it first before I write (obviously) Image this two lists: List<string> initials = new List<string> {"A", "B", "C", "D", "E"}; List<string> words = new List<string> {"Ant", "Crawl", "Pig", "Boat", "Elephant", "Arc"}; Nothing weird here. I want to join both lists by the Initial, something like: Initial=A Word=Ant Initial=A Word=Arc Initial=B Word=Boat ... I need a comparator, I wrote this: public class InitialComparator : IEqualityComparer<string> { public bool Equals(string x, string y) { return x.StartsWith(y); } public int GetHashCode(string obj) { return obj[0].GetHashCode(); } } The Join itself: var blah = initials.Join(words, initial => initial, word => word, (initial, word) => new {Initial = initial, Word = word}, new InitialComparator()); It's the first time Im using HashCodes, after a good session of debugging I see that every word go to the comparator and look at its HashCode, if another word has the same HashCode it calls equals. Since I want to compare just the initial I though that I just need the first letter Hash (Am I wrong?) The thing is that this is not working correctly. Its says that "Ant" and "Arc" are equals, Ok, its comparing every word in the same list or not, But it adds only the last word it finds, in this case Arc, ignoring Ant and Ant is equals to "A" too... If I put "Ant" and "Ant" it add both. In short, What is the way of doing something like that? I know that Im doing something wrong. Thank you.

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  • Convert templated parameter type to string

    - by wheaties
    I've got a small bit of DRY going on in code I and others have written that I'd like to reduce but I'm failing to figure out how to get it done. This is legacy COM code but it's interfering with the readability. I'd like to do the following: bool queryInterface<class T, class V>(T &_input, V &_output, Logger &_logger){ if( FAILED( _input->QueryInterface( &_output ) ) ){ _logger.error() << "Failed to Query Interface between " << MAGICHAPPENS<T>() << " and " << MAGICHAPPENS<V>(); return false; } if( _output == NULL ){ _logger.warn() << "Unable to Query Interface between " << MAGICHAPPENS<T>() << " and " << MAGICHAPPENS<V>(); return false; } } Wherein the "MAGICHAPPENS()" function would spit out the name of the variable type. Such that if "V" were a IQueryFilter I'd get back a string of "IQueryFilter." I can't think of any reasonable solution without having to write a bunch of template specializations totally defeating the point in the first place. Is there a way to write ANDMAGICHAPPENS?

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  • Action Filter Dependency Injection in ASP.NET MVC 3 RC2 with StructureMap

    - by Ben
    Hi, I've been playing with the DI support in ASP.NET MVC RC2. I have implemented session per request for NHibernate and need to inject ISession into my "Unit of work" action filter. If I reference the StructureMap container directly (ObjectFactory.GetInstance) or use DependencyResolver to get my session instance, everything works fine: ISession Session { get { return DependencyResolver.Current.GetService<ISession>(); } } However if I attempt to use my StructureMap filter provider (inherits FilterAttributeFilterProvider) I have problems with committing the NHibernate transaction at the end of the request. It is as if ISession objects are being shared between requests. I am seeing this frequently as all my images are loaded via an MVC controller so I get 20 or so NHibernate sessions created on a normal page load. I added the following to my action filter: ISession Session { get { return DependencyResolver.Current.GetService<ISession>(); } } public ISession SessionTest { get; set; } public override void OnResultExecuted(System.Web.Mvc.ResultExecutedContext filterContext) { bool sessionsMatch = (this.Session == this.SessionTest); SessionTest is injected using the StructureMap Filter provider. I found that on a page with 20 images, "sessionsMatch" was false for 2-3 of the requests. My StructureMap configuration for session management is as follows: For<ISessionFactory>().Singleton().Use(new NHibernateSessionFactory().GetSessionFactory()); For<ISession>().HttpContextScoped().Use(ctx => ctx.GetInstance<ISessionFactory>().OpenSession()); In global.asax I call the following at the end of each request: public Global() { EndRequest += (sender, e) => { ObjectFactory.ReleaseAndDisposeAllHttpScopedObjects(); }; } Is this configuration thread safe? Previously I was injecting dependencies into the same filter using a custom IActionInvoker. This worked fine until MVC 3 RC2 when I started experiencing the problem above, which is why I thought I would try using a filter provider instead. Any help would be appreciated Ben P.S. I'm using NHibernate 3 RC and the latest version of StructureMap

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  • Problem in encoding and decoding the string in Iphone sdk

    - by monish
    HI Guys, Here I am having a problem In encoding/decoding the strings. Actually I had a string which I am encoding it using the base64.which was working fine. And now I need to decode the string that was encoded before and want to print it. I code I written as: I imported the base64.h and base64.m files into my application which contains the methods as: + (NSData *) dataWithBase64EncodedString:(NSString *) string; - (id) initWithBase64EncodedString:(NSString *) string; - (NSString *) base64EncodingWithLineLength:(unsigned int) lineLength; And the code in my view controller where I encode the String is: - (id)init { if (self = [super init]) { // Custom initialization userName = @"Sekhar"; password = @"Bethalam"; } return self; } -(void)reloadView { NSString *authStr = [NSString stringWithFormat:@"%@:%@",userName,password]; NSData *authData = [authStr dataUsingEncoding:NSASCIIStringEncoding]; NSString *authValue = [NSString stringWithFormat:@"%@", [authData base64EncodingWithLineLength:30]]; NSLog(authValue); //const char *str = authValue; //NSString *decStr = [StringEncryption DecryptString:authValue]; //NSLog(decStr); //NSData *decodeData = [NSData decode:authValue]; //NSString *decStr = [NSString stringWithFormat:@"%@",decodeData]; //NSStr //NSLog(decStr); } -(void)viewWillAppear:(BOOL)animated { [self reloadView]; } and now I want to decode the String that I encoded. But I dont know How to do that.can anyone suggest me with code how to get it. Anyone's help will be much appreciated. Thank you, Monish.

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  • Inactive area after device rotation

    - by Sébastien
    Hi all, I don't understand what's wrong in my very simple application with device rotation : I built my view with interface builder. (See screen capture here) I specified <key>UIInterfaceOrientation</key><string>UIInterfaceOrientationLandscapeRight</string> in my info.plist file. I had a (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {return YES;} in my root view controller. The area on the left (shown in red on the capture), around 20 pixel width, keeps inactive (nothing append if I hit a button in this area). In fact the full screen is active only in portrait mode, in landscape right mode there is this 20 pixels width inactive area, in landscape left mode this inactive area is on the right, in portrait upside down mode this area is on the bottom. I read lots of posts and documentation about UIView rotation, but I did not find anything to solve this problem (I tried to play with view.frame and view.bounds without any success). Anybody has an idea ? Thanks a lot. Regards. Sébastien.

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  • Why boost property tree write_json saves everything as string? Is it possible to change that?

    - by pprzemek
    I'm trying to serialize using boost property tree write_json, it saves everything as strings, it's not that data are wrong, but I need to cast them explicitly every time and I want to use them somewhere else. (like in python or other C++ json (non boost) library) here is some sample code and what I get depending on locale: boost::property_tree::ptree root, arr, elem1, elem2; elem1.put<int>("key0", 0); elem1.put<bool>("key1", true); elem2.put<float>("key2", 2.2f); elem2.put<double>("key3", 3.3); arr.push_back( std::make_pair("", elem1) ); arr.push_back( std::make_pair("", elem2) ); root.put_child("path1.path2", arr); std::stringstream ss; write_json(ss, root); std::string my_string_to_send_somewhare_else = ss.str(); and my_string_to_send_somewhere_else is sth. like this: { "path1" : { "path2" : [ { "key0" : "0", "key1" : "true" }, { "key2" : "2.2", "key3" : "3.3" } ] } } Is there anyway to save them as the values, like: "key1" : true or "key2" : 2.2 ?

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  • Resize view on iPhone when rotating

    - by BCBomb47
    I have an application with many views. I want only a couple of the views to be able to rotate to landscape when the device is rotated. I found out that I couldn't use (BOOL)shouldAutorotateToInterfaceOrientation because that would rotate every view in my app. I found a solution to this problem here on Stack Overflow but now I have another issue to deal with. The view rotates when I turn the device but it still shows the view as if it were still in portrait mode (straight up and down). The top and bottom of the view is cut off. Is there a way to have the view rotate and also adjust its size to fit the new orientation? I also found this but wasn't able to get it to work. Here's my code for that view: @implementation businessBank @synthesize webView, activityIndicator; - (void)viewDidLoad { [super viewDidLoad]; NSString *urlAddress = @"website_url"; NSURL *url = [NSURL URLWithString:urlAddress]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; [webView loadRequest:requestObj]; [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didRotate:) name:UIDeviceOrientationDidChangeNotification object:nil]; } - (void)didRotate:(NSNotification *)notification { UIDeviceOrientation orientation = [[notification object] orientation]; if (orientation == UIDeviceOrientationLandscapeLeft) { [self.view setTransform:CGAffineTransformMakeRotation(M_PI / 2.0)]; } else if (orientation == UIDeviceOrientationLandscapeRight) { [self.view setTransform:CGAffineTransformMakeRotation(M_PI / -2.0)]; } else if (orientation == UIDeviceOrientationPortraitUpsideDown) { [self.view setTransform:CGAffine TransformMakeRotation(M_PI)]; } else if (orientation == UIDeviceOrientationPortrait) { [self.view setTransform:CGAffineTransformMakeRotation(0.0)]; } }

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  • How to add View Controller with Tab Bar interfaced View Controller

    - by TechFusion
    I have created Window based Tab Bar controller app, One Tab Bar of viewController has been interfaced with WebVIew ..I am looking to create another view once touch event happened in that WebView.. //TabBarViewController.m - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { TabMainView *mainView = [[TabMainView alloc] init]; mainView.hidesBottomBarWhenPushed = YES; [self.navigationController pushViewController: mainView animated:YES]; [mainView release]; } I have created MainView, which is UIViewController Subclass. //TabMainView.m - (void)loadView { CGRect frame = CGRectMake(0.0, 0.0, 480, 320); WebView = [[[UIWebView alloc] initWithFrame:frame] autorelease]; WebView.backgroundColor = [UIColor whiteColor]; WebView.scalesPageToFit = YES; WebView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleTopMargin); WebView.autoresizesSubviews = YES; WebView.exclusiveTouch = YES; //self.WebView.UserInteractionEnabled = NO; WebView.clearsContextBeforeDrawing = YES; self.view = WebView; [WebView release]; } - (void)viewWillAppear:(BOOL)animated { [self.WebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.apple.com"]]]; } Here when touch event happened then it is not passing control to TabMainView.m 's Viewload function although I am pushing it's view? TabBarView is also UIViewController subclass not a UINavigationController.

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  • How do I capture a WinForm window to a bitmap without the caret

    - by Steve Dunn
    I've got window on a WinForm that I want to get the bitmap representation of. For this, I use the following code (where codeEditor is the control I want a bitmap representation of): public Bitmap GetBitmap( ) { IntPtr srcDC = NativeMethods.GetDC( codeEditor.Handle ) ; var bitmap = new Bitmap( codeEditor.Width, codeEditor.Height ) ; Graphics graphics = Graphics.FromImage( bitmap ) ; var deviceContext = graphics.GetHdc( ) ; bool blitted = NativeMethods.BitBlt( deviceContext, 0, 0, bitmap.Width, bitmap.Height, srcDC, 0, 0, 0x00CC0020 /*SRCCOPY*/ ) ; if ( !blitted ) { throw new InvalidOperationException( @"The bitmap could not be generated." ) ; } int result = NativeMethods.ReleaseDC( codeEditor.Handle, srcDC ) ; if ( result == 0 ) { throw new InvalidOperationException( @"Cannot release bitmap resources." ) ; } graphics.ReleaseHdc( deviceContext ) ; graphics.Dispose( ) ; The trouble is, this captures the caret if it's flashing in the window at the time of capture. I tried calling the Win32 method HideCaret before capturing, but it didn't seem to have any effect.

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  • Increasing Regex Efficiency

    - by cam
    I have about 100k Outlook mail items that have about 500-600 chars per Body. I have a list of 580 keywords that must search through each body, then append the words at the bottom. I believe I've increased the efficiency of the majority of the function, but it still takes a lot of time. Even for 100 emails it takes about 4 seconds. I run two functions for each keyword list (290 keywords each list). public List<string> Keyword_Search(HtmlNode nSearch) { var wordFound = new List<string>(); foreach (string currWord in _keywordList) { bool isMatch = Regex.IsMatch(nSearch.InnerHtml, "\\b" + @currWord + "\\b", RegexOptions.IgnoreCase); if (isMatch) { wordFound.Add(currWord); } } return wordFound; } Is there anyway I can increase the efficiency of this function? The other thing that might be slowing it down is that I use HTML Agility Pack to navigate through some nodes and pull out the body (nSearch.InnerHtml). The _keywordList is a List item, and not an array.

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  • XML Parseing Error when serving a PDF

    - by Andy
    I'm trying to serve a pdf file from a database in ASP.NET using an Http Handler, but every time I go to the page I get an error XML Parsing Error: no element found Location: https://ucc489/rc/NoteFileHandler.ashx?noteId=1,msdsId=3 Line Number 1, Column 1: ^ Here is my HttpHandler code: public class NoteFileHandler : IHttpHandler { public void ProcessRequest(HttpContext context) { if (context.Request.QueryString.HasKeys()) { if (context.Request.QueryString["noteId"] != null && context.Request.QueryString["msdsId"] != null) { string nId = context.Request.QueryString["noteId"]; string mId = context.Request.QueryString["msdsId"]; DataTable noteFileDt = App_Models.Notes.GetNoteFile(nId, mId); if (noteFileDt.Rows.Count > 0) { try { context.Response.Clear(); context.Response.AddHeader("content-disposition", "attachment;filename=" + noteFileDt.Rows[0][0] + ".pdf"); context.Response.ContentType = "application/pdf"; byte[] file = (byte[])noteFileDt.Rows[0][1]; context.Response.BinaryWrite(file); context.Response.End(); } catch { context.Response.ContentType = "text/plain"; context.Response.Write("File Not Found"); context.Response.StatusCode = 404; } } } } } public bool IsReusable { get { return false; } } } Is there anything else I need to do (server configuration/whatever) to get my pdf file to load?

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  • What am i doing wrong

    - by Erik Sapir
    I have the following code. I need B class to have a min priority queue of AToTime objects. AToTime have operator, and yet i receive error telling me than there is no operator matching the operands... #include <queue> #include <functional> using namespace std; class B{ //public functions public: B(); virtual ~B(); //private members private: log4cxx::LoggerPtr m_logger; class AToTime { //public functions public: AToTime(const ACE_Time_Value& time, const APtr a) : m_time(time), m_a(a){} bool operator >(const AToTime& other) { return m_time > other.m_time; } //public members - no point using any private members here public: ACE_Time_Value m_time; APtr m_a; }; priority_queue<AToTime, vector<AToTime>, greater<AToTime> > m_myMinHeap; };

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  • C++: Is there any good way to read/write without specifically stating character type in function nam

    - by Mark L.
    I'm having a problem getting a program to read from a file based on a template, for example: bool parse(basic_ifstream<T> &file) { T ch; locale loc = file.getloc(); basic_string<T> buf; file.unsetf(ios_base::skipws); if (file.is_open()) { while (file >> ch) { if(isalnum(ch, loc)) { buf += ch; } else if(!buf.empty()) { addWord(buf); buf.clear(); } } if(!buf.empty()) { addWord(buf); } return true; } return false; } This will work when I instantiate this class with <char>, but has problems when I use <wchar_t> (clearly). Outside of the class, I'm using: for (iter = mp.begin(); iter != mp.end(); ++iter ) { cout << iter->first << setw(textwidth - iter->first.length() + 1); cout << " " << iter->second << endl; } To write all of the information from this data struct (it's a map<basic_string<T>, int>), and as predicted, cout explodes if iter->first isn't a char array. I've looked online and the consensus is to use wcout, but unfortunately, since this program requires that the template can be changed at compile time (<char> - <wchar_t>) I'm not sure how I could get away with simply choosing cout or wcout. That is, unless there way a way to read/write wide characters without changing lots of code. If this explanation sounds awkwardly complicated, let me know and I'll address it as best I can.

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  • iPhone Multithreaded Search

    - by Kulpreet
    I'm sort of new to any sort of multithreading and simply can't seem to get a simple search method working on a background thread properly. Everything seems to be in order with an NSAutoreleasePool and the UI being updated on the main thread. The app doesn't crash and does perform a search in the background but the search results yield the several of the same items several times depending on how fast I type it in. The search works properly without the multithreading (which is commented out), but is very slow because of the large amounts of data I am working with. Here's the code: - (void)filterContentForSearchText:(NSString*)searchText { isSearching = YES; NSAutoreleasePool *apool = [[NSAutoreleasePool alloc] init]; /* Update the filtered array based on the search text and scope. */ //[self.filteredListContent removeAllObjects]; // First clear the filtered array. for (Entry *entry in appDelegate.entries) { NSComparisonResult result = [entry.gurmukhiEntry compare:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])]; if (result == NSOrderedSame) { [self.filteredListContent addObject:entry]; } } [self.searchDisplayController.searchResultsTableView performSelectorOnMainThread:(@selector(reloadData)) withObject:nil waitUntilDone:NO]; //[self.searchDisplayController.searchResultsTableView reloadData]; [apool drain]; isSearching = NO; } - (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString { if (!isSearching) { [self.filteredListContent removeAllObjects]; // First clear the filtered array. [self performSelectorInBackground:(@selector(filterContentForSearchText:)) withObject:searchString]; } //[self filterContentForSearchText:searchString]; return NO; // Return YES to cause the search result table view to be reloaded. }

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  • Horrorble performance using ListViews with nested objects in WPF

    - by Christian
    Hi community, like mentioned in the title I get a horrible performance if I use ListViews with nested objects. My scenario is: Each row of a ListView presents an object of the class Transaction with following attributes: private int mTransactionID; private IBTTransactionSender mSender; private IBTTransactionReceiver mReceiver; private BTSubstrate mSubstrate; private double mAmount; private string mDeliveryNote; private string mNote; private DateTime mTransactionDate; private DateTime mCreationTimestamp; private BTEmployee mEmployee; private bool mImported; private bool mDescendedFromRecurringTransaction; Each attribute can be accessed by its corresponding property. An ObservableCollection<Transaction> is bound to the ItemsSource of a ListView. The ListView itself looks like the following: </ListView.GroupStyle> <ListView.View> <GridView> <GridViewColumn core:SortableListView.SortPropertyName="Transaction.ToSave" Width="80"> <GridViewColumnHeader Name="GVCHLoadedToSave" Style="{StaticResource ListViewHeaderStyle}">Speichern</GridViewColumnHeader> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <CheckBox Name="CBListViewItem" IsChecked="{Binding Path=Transaction.ToSave, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></CheckBox> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn core:SortableListView.SortPropertyName="Transaction.TransactionDate" Width="80"> <GridViewColumnHeader Name="GVCHLoadedDate" Style="{StaticResource ListViewHeaderStyle}">Datum</GridViewColumnHeader> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding ElementName=DPDate, Path=Text}" Style="{StaticResource GridBlockStyle}"/> <toolkit:DatePicker Name="DPDate" Width="{Binding ElementName=GVCHDate, Path=ActualWidth}" SelectedDateFormat="Short" Style="{StaticResource GridEditStyle}" SelectedDate="{Binding Path=Transaction.TransactionDate, Mode=TwoWay}" SelectedDateChanged="DPDate_SelectedDateChanged"/> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn core:SortableListView.SortPropertyName="Transaction.Sender.Description" Width="120"> <GridViewColumnHeader Name="GVCHLoadedSender" Style="{StaticResource ListViewHeaderStyle}">Von</GridViewColumnHeader> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding Path=Transaction.Sender.Description}" Style="{StaticResource GridBlockStyle}"/> <ComboBox Name="CBSender" Width="{Binding ElementName=GVCHSender, Path=ActualWidth}" SelectedItem="{Binding Path=Transaction.Sender}" DisplayMemberPath="Description" Text="{Binding Path=Sender.Description, Mode=OneWay}" ItemsSource="{Binding ElementName=Transaction, Path=SenderList}" Style="{StaticResource GridEditStyle}"> </ComboBox> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn core:SortableListView.SortPropertyName="Transaction.Receiver.Description" Width="120"> <GridViewColumnHeader Name="GVCHLoadedReceiver" Style="{StaticResource ListViewHeaderStyle}">Nach</GridViewColumnHeader> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding Path=Transaction.Receiver.Description}" Style="{StaticResource GridBlockStyle}"/> <ComboBox Name="CBReceiver" Width="{Binding ElementName=GVCHReceiver, Path=ActualWidth}" SelectedItem="{Binding Path=Transaction.Receiver}" DisplayMemberPath="Description" Text="{Binding Path=Receiver.Description, Mode=OneWay}" ItemsSource="{Binding ElementName=Transaction, Path=ReceiverList}" Style="{StaticResource GridEditStyle}"> </ComboBox> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn core:SortableListView.SortPropertyName="Transaction.Substrate.Description" Width="140"> <GridViewColumnHeader Name="GVCHLoadedSubstrate" Style="{StaticResource ListViewHeaderStyle}">Substrat</GridViewColumnHeader> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding Path=Transaction.Substrate.Description}" Style="{StaticResource GridBlockStyle}"/> <ComboBox Name="CBSubstrate" Width="{Binding ElementName=GVCHSubstrate, Path=ActualWidth}" SelectedItem="{Binding Path=Transaction.Substrate}" DisplayMemberPath="Description" Text="{Binding Path=Substrate.Description, Mode=OneWay}" ItemsSource="{Binding ElementName=Transaction, Path=SubstrateList}" Style="{StaticResource GridEditStyle}"> </ComboBox> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn core:SortableListView.SortPropertyName="Transaction.Amount" Width="80"> <GridViewColumnHeader Name="GVCHLoadedAmount" Style="{StaticResource ListViewHeaderStyle}">Menge [kg]</GridViewColumnHeader> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding Path=Transaction.Amount}" Style="{StaticResource GridBlockStyle}"/> <TextBox Name="TBAmount" Text="{Binding Path=Transaction.Amount, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="{Binding ElementName=GVCHAmount, Path=ActualWidth}" Style="{StaticResource GridTextBoxStyle}" /> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn core:SortableListView.SortPropertyName="Transaction.DeliveryNote" Width="100"> <GridViewColumnHeader Name="GVCHLoadedDeliveryNote" Style="{StaticResource ListViewHeaderStyle}">Lieferschein Nr.</GridViewColumnHeader> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding Path=Transaction.DeliveryNote}" Style="{StaticResource GridBlockStyle}"/> <TextBox Name="TBDeliveryNote" Text="{Binding Path=Transaction.DeliveryNote, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="{Binding ElementName=GVCHDeliveryNote, Path=ActualWidth}" Style="{StaticResource GridEditStyle}" /> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn core:SortableListView.SortPropertyName="Transaction.Note" Width="190"> <GridViewColumnHeader Name="GVCHLoadedNote" Style="{StaticResource ListViewHeaderStyle}">Bemerkung</GridViewColumnHeader> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding Path=Transaction.Note}" Style="{StaticResource GridBlockStyle}"/> <TextBox Name="TBNote" Text="{Binding Path=Transaction.Note, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="{Binding ElementName=GVCHNote, Path=ActualWidth}" Style="{StaticResource GridEditStyle}" /> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn core:SortableListView.SortPropertyName="Transaction.Employee.LastName" Width="100"> <GridViewColumnHeader Name="GVCHLoadedEmployee" Style="{StaticResource ListViewHeaderStyle}">Mitarbeiter</GridViewColumnHeader> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding Path=Transaction.Employee.LastName}" Style="{StaticResource GridBlockStyle}"/> <ComboBox Name="CBEmployee" Width="{Binding ElementName=GVCHEmployee, Path=ActualWidth}" SelectedItem="{Binding Path=Transaction.Employee}" DisplayMemberPath="LastName" Text="{Binding Path=Employee.LastName, Mode=OneWay}" ItemsSource="{Binding ElementName=Transaction, Path=EmployeeList}" Style="{StaticResource GridEditStyle}"> </ComboBox> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> </GridView> </ListView.View> </ListView> As you can see in the screenshot the user got the possibility to change the values of the transaction attributes with comboboxes. Ok now to my problem. If I click on the "Laden" button the application will load about 150 entries in the ObservableCollection<Transaction>. Before I fill the collection I set the ItemsSource of the ListView to null and after filling I bind the collection to the ItemsSource once again. The loading itself takes a few milliseconds, but the rendering of the filled collection takes a long time (150 entries = about 20 sec). I tested to delete all Comboboxes out of the xaml and i got a better performance, because I don't have to fill the ComboBoxes for each row. But I need to have these comboboxes for modifing the attributes of the Transaction. Does anybody know how to improve the performance? THX

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