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  • How to call WCF Service Method Asycroniously from Class file?

    - by stackuser1
    I've added WCF Service reference to my asp.net application and configured that reference to support asncronious calls. From asp.net code behind files, i'm able to call the service methods asyncroniously like the bellow sample code. protected void Button1_Click(object sender, EventArgs e) { PageAsyncTask pat = new PageAsyncTask(BeiginGetDataAsync, EndDataRetrieveAsync, null, null); Page.RegisterAsyncTask(pat); } IAsyncResult BeiginGetDataAsync(object sender, EventArgs e, AsyncCallback async, object extractData) { svc = new Service1Client(); return svc.BeginGetData(656,async, extractData); } void EndDataRetrieveAsync(IAsyncResult ar) { Label1.Text = svc.EndGetData(ar); } and in page directive added Async="true" In this scenario it is working fine. But from UI i'm not supposed to call the service methods directly. I need to call all service methods from a static class and from code behind file i need to invoke the static method. In this scenario what exactlly do i need to do?

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  • problem injecting Sessionscoped bean in Managed bean

    - by user310852
    I have a Session scoped bean @SessionScoped public class UserData implements Serializable { private String uid; public String getUid() { return uid; } public void setUid(final String uid) { this.uid = uid; } I'm setting a value in a SessionScoped bean in my stateless session bean public void setOperator(final Operator operator) { userData.setUid(operator.getId()); } When I try to get the object with @Inject I only get null @ManagedBean(name = "RoleController") @SessionScoped public class RoleController { ... @Inject private UserData userData; ... public UserData getUserData() { System.out.println("ID"); System.out.println(userData.getUid()); I have a bean.xml

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  • non-class rvalues always have cv-unqualified types

    - by FredOverflow
    §3.10 section 9 says "non-class rvalues always have cv-unqualified types". That made me wonder... int foo() { return 5; } const int bar() { return 5; } void pass_int(int&& i) { std::cout << "rvalue\n"; } void pass_int(const int&& i) { std::cout << "const rvalue\n"; } int main() { pass_int(foo()); // prints "rvalue" pass_int(bar()); // prints "const rvalue" } According to the standard, there is no such thing as a const rvalue for non-class types, yet bar() prefers to bind to const int&&. Is this a compiler bug? EDIT: Apparently, this is also a const rvalue :)

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  • Adding image to RichTextBox programatically does not show in Xaml property

    - by rotary_engine
    Trying to add an image to a RichTextBox progamatically from a Stream. The image displays in the text box, however when reading the Xaml property there is no markup for the image. private void richTextBox3_Drop(object sender, DragEventArgs e) { if (e.Data.GetDataPresent(DataFormats.FileDrop)) { FileInfo[] files = (FileInfo[])e.Data.GetData(DataFormats.FileDrop); using (Stream s = files[0].OpenRead()) { InlineUIContainer container = new InlineUIContainer(); BitmapImage bmp = new BitmapImage(); bmp.SetSource(s); Image img = new Image(); img.SetValue(Image.SourceProperty, bmp); container.Child = img; richTextBox3.Selection.Insert(container); } } } private void Button_Click_1(object sender, RoutedEventArgs e) { // this doesn't have the markup from the inserted image System.Windows.MessageBox.Show(richTextBox3.Xaml); } What is the correct way to insert an image into the RichTextBox at runtime so that it can be persisted to a data store? In the Xaml property.

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  • Why does does my stack overflow error occur after 518669 specifically?

    - by David
    I created a java program to count up toward infinity: class up { public static void up (int n) { System.out.println (n) ; up (n+1) ; } public static void main (String[] arg) { up (1) ; } } i didn't actually expect it to get there but the thing that i noticed that was a bit curious was that it stopped at the same number each time: 518669 what is the significance of this number? (or of this number +1 i suppose). (also as a bit of an aside question, I've been told that the way i format my code is bad [indentation and such] what am i doing that isn't desirable?)

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  • WinForms: finding the size of a minimized form without going to FormWindowState.Normal

    - by Doc Brown
    Is there an easy way to determine the size of a Form it does have in WindowState=Normal, without actually changing the Form state? Here is what I do now (C# code): public class MyForm: Form { public void MyMethod() { // ... FormWindowState oldState = this.WindowState; this.WindowState = FormWindowState.Normal; Point windowLocation = this.Location; Size windowSize = this.Size; this.WindowState = oldState; // ... } } This is what I would like the code to look like: public class MyForm: Form { public void MyMethod() { // no state change here Point windowLocation = this.NormalStateLocation; Size windowSize = this.NormalStateSize; } } In fact there are no NormalStateLocation or NormalStateSize properties in Windows Forms.

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  • UITextView Delegate shouldChangeTextInRange (or any over) doesn't get called

    - by justas wza
    Hello, I need to track changes in my UITextView method (actianly for limiting number of lines), but none of UITextViewDelegate methods are being called when editing in UITextView begins. Not even - (void)textViewDidChange:(UITextView *)textView; I dont know what Im doing wrong I added UITextViewDelegate method to header file like that: @interface PirmasViewController : UIViewController <UITextViewDelegate, MFMa...... And I put any methods for tracking changes in my implementation file: - (void)textViewDidChange:(UITextView *)textView{NSLog(@"something changed");} - (BOOL)textView:(UITextView *)aTextView shouldChangeTextInRange:(NSRange)aRange replacementText:(NSString*)aText{ NSLog(@"something changed"); return YES; }` but no rezults.

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  • ASIHttpRequest problems. "unrecognized selector sent to instance"

    - by Paul Peelen
    Hi, I am experiencing problems using ASIHttpRequst. This is the error I get: 2010-04-11 20:47:08.176 citybikesPlus[5885:207] *** -[CALayer rackDone:]: unrecognized selector sent to instance 0x464a890 2010-04-11 20:47:08.176 citybikesPlus[5885:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[CALayer rackDone:]: unrecognized selector sent to instance 0x464a890' 2010-04-11 20:47:08.176 citybikesPlus[5885:207] Stack: ( 33936475, 2546353417, 34318395, 33887862, 33740482, 126399, 445238, 33720545, 33717320, 40085013, 40085210, 3108783, 11168, 11022 ) And this is my code (Part of it): // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [image setImage:[UIImage imageNamed:@"bullet_rack.png"]]; BikeAnnotation *bike = [[annotationView annotation] retain]; bike._sub = @""; [super viewDidLoad]; NSString *newUrl = [[NSString alloc] initWithFormat:rackUrl, bike._id]; NSString *fetchUrl = [newUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; [networkQueue cancelAllOperations]; [networkQueue setRequestDidFinishSelector:@selector(rackDone:)]; [networkQueue setRequestDidFailSelector:@selector(processFailed:)]; [networkQueue setDelegate:self]; ASIFormDataRequest *request = [[[ASIFormDataRequest alloc] initWithURL:[NSURL URLWithString:fetchUrl]] retain]; [request setDefaultResponseEncoding:NSUTF8StringEncoding]; [networkQueue addOperation:request]; [networkQueue go]; } - (void)rackDone:(ASIHTTPRequest *)request { NSString *resultSearch = [request responseString]; NSData *data = [resultSearch dataUsingEncoding:NSUTF8StringEncoding]; NSString *errorDesc = nil; NSPropertyListFormat format; NSDictionary * dict = (NSDictionary*)[NSPropertyListSerialization propertyListFromData:data mutabilityOption:NSPropertyListMutableContainersAndLeaves format:&format errorDescription:&errorDesc]; rackXmlResult* fileResult = [[[rackXmlResult alloc] initWithDictionary:dict] autorelease]; rackXmlSet *rackSet = [fileResult getRackResult]; NSString *subString = [[NSString alloc] initWithFormat:@"Cyklar tillgängligt: %@ -- Lediga platser: %@", rackSet._ready_bikes, rackSet._empty_locks]; [activity setHidden:YES]; [image setHidden:NO]; BikeAnnotation *bike = [annotationView annotation]; bike._sub = subString; } - (void) processFailed:(ASIHTTPRequest *)request { UIAlertView *errorView; NSError *error = [request error]; NSString *errorString = [error localizedDescription]; errorView = [[UIAlertView alloc] initWithTitle: NSLocalizedString(@"Network error", @"Network error") message: errorString delegate: self cancelButtonTitle: NSLocalizedString(@"Close", @"Network error") otherButtonTitles: nil]; [errorView show]; [errorView autorelease]; } The process is loaded as LeftCalloutView in the callout bubble when annotations are loaded in my mapview, so quite a lot (80 times or so). It is meant to retrieve a XML Plist from a server, parse it and use the data... but it dies at the rackDone: Does anybody have any ideas? Regards, Paul Peelen

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  • OpenFileDialog.AutoUpgradeEnabled doesn't work under Vista or 7?

    - by Digiku
    If I specify OpenFileDialog.AutoUpgradeEnabled = true, my program still shows the old XP-style dialog. Any idea why this would happen? This is after I enable theming in Main() [STAThread] static void Main() { Application.EnableVisualStyles(); Application.Run(new Primary()); } and this is my dialog code: private void OpenProgramFile() { OpenFileDialog programFileDialog = new OpenFileDialog(); programFileDialog.Filter = "Program files (*.exe;*.lnk)|*.exe|All files (*.*)|*.*"; programFileDialog.FilterIndex = 0; programFileDialog.Title = "Select program file"; programFileDialog.AutoUpgradeEnabled = true; programFileDialog.ShowHelp = true; DialogResult fileResult = programFileDialog.ShowDialog(); if (fileResult != DialogResult.OK) return false; programFileDialog.Dispose(); } So why would AutoUpgradeEnabled not work?

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  • ASP.NET MVC 2 Areas 404

    - by Justin
    Hey, Has anyone been able to get the Areas in ASP.NET MVC 2 to work? I created a new Area called "Secure" and placed a new controller in it named HomeController. I then Created a new Home/Index.aspx view. However, when I browse to http://localhost/myapp/Secure/ it gives a 404 resource cannot be found. http://localhost/myapp/Secure/Home gives the same error. My area registration looks like this: public override void RegisterArea(AreaRegistrationContext context) { context.MapRoute( "Secure_default", "Secure/{controller}/{action}/{id}", new { action = "Index", id = UrlParameter.Optional } ); } I also tried this: public override void RegisterArea(AreaRegistrationContext context) { context.MapRoute( "Secure_default", "Secure/{controller}/{action}/{id}", new { controller = "Home", action = "Index", id = UrlParameter.Optional } ); } Thanks, Justin

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  • DataGridView selectedRow Property not get Data if i double click Row?

    - by programmerist
    i click double dataGridView's any row. Not get Data clicked row data: private void gwStudies_CellDoubleClick(object sender, DataGridViewCellEventArgs e) { GoruntuyuAc(); } private void GoruntuyuAc() { olduid = ""; DataRowView ro = (gwStudies.SelectedRows[0].DataBoundItem as DataRowView); string uid = ""; uid = ro["StudyInstanceUid"].ToString(); string tarih = ""; DateTime t1 = Convert.ToDateTime(ro["StudyDate"]); //........ //............ } Error Data on (gwStudies.SelectedRows[0].DataBoundItem as DataRowView); IMAGE:

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  • drawRect context Error

    - by user361228
    Hi, I heard that a lot of people get a context error by not using drawRect Now I have this: - (void)drawRect:(CGRect)rect { NSLog(@"drawRect: Starts"); CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetRGBStrokeColor(context, 1.0, 1.0, 1.0, 1.0); CGContextSetLineWidth(context, 3.0); CGContextMoveToPoint(context, lineStart.x, lineStart.y); CGContextAddLineToPoint(context, lineEnd.x, lineEnd.y); CGContextStrokePath(context); } Error: <Error>: CGContextSetRGBStrokeColor: invalid context Which had work on previous programs, but not on this one. Whats different: I have a view controller, which calls this UIView: -(void)createLine:(CGPoint)start:(CGPoint)end { NSLog(@"createLine: Starts"); lineEnd = start; lineStart = end; self = [super initWithFrame:drawRect:CGRectMake(fmin(lineStart.x, lineEnd.x), fmin(lineStart.y, lineEnd.y), fabs(lineStart.x - lineEnd.x), fabs(lineStart.y - lineEnd.y))]; } This is my first question, and I am not sure how much info code I should be putting here so be easy on me :D Thanks

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  • WinForms Form won't close on pressing X or Close() in C#

    - by MadBoy
    I'm having a bit weird problem with WinForm which seems to refuse to close for some weird reason. I've got very simple gui which sometimes doesn't react for me pressing X or when i use events on buttons it even reaches Close() and does nothing.. private void buttonZapisz_Click(object sender, EventArgs e) { string plik = textBoxDokumentDoZaladowania.Text; if (File.Exists(plik)) { string extension = Path.GetExtension(plik); string nazwaPliku = Path.GetFileName(plik); SqlMethods.databaseFilePut(plik, comboBoxTypDokumentu.Text, textBoxKomentarz.Text, sKlienciID, sPortfelID, extension, nazwaPliku); Close(); } } There are no events assigned to FormClosed or FormClosing. So how can I find out what's wrong. Sometimes X will work after the GUI is loaded but after i press Button to save some stuff to database it reaches Close() in that button event and it still is visible and does nothing. Can't use X, nor ALT+F4. I can go around GUI and choose other values for ComboBox without problem. I call GUI like this: private void contextMenuDokumentyDodaj_Click(object sender, EventArgs e) { var lv = (ListView) contextMenuDokumenty.SourceControl; string varPortfelID = Locale.ustalDaneListViewKolumny(listViewNumeryUmow, 0); string varKlienciID = Locale.ustalDaneListViewKolumny(listViewKlienci, 0); if (lv == listViewDokumentyPerKlient) { if (varKlienciID != "") { var dokumenty = new DocumentsGui(varKlienciID); dokumenty.Show(); dokumenty.FormClosed += varDocumentsGuiKlienci_FormClosed; } } else if (lv == listViewDokumentyPerPortfel) { if (varPortfelID != "" && varKlienciID != "") { var dokumenty = new DocumentsGui(varKlienciID, varPortfelID); dokumenty.Show(); dokumenty.FormClosed += varDocumentsGuiPortfele_FormClosed; } } } While I can't close GUI i can work on the main gui without problem too. I can open up same GUI and after opening new GUI i can quickly close it. GUI is very simple with few ComboBoxes,TextBoxes and one EditButton from Devexpress. Edit: varDocumentsGuiPortfele_FormClosed code allows me to refresh GUI (reload ListView's depending on where the user is on now). private void varDocumentsGuiPortfele_FormClosed(object sender, FormClosedEventArgs e) { TabControl varTabControl = tabControlKlientPortfele; if (varTabControl.TabPages.IndexOf(tabPageDokumentyPerKlient) == varTabControl.SelectedIndex) { loadTabControlKlientPortfeleBezZmianyUmowy(); } }

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  • Try-Catch-Throw in the same Java class

    - by Carlos
    Is it possible to catch a method in the current class the try-catch block is running on? for example: public static void arrayOutOfBoundsException(){ System.out.println("Array out of bounds"); } ..... public static void doingSomething(){ try { if(something[i] >= something_else); } catch (arrayOutOfBoundsException e) { System.out.println("Method Halted!, continuing doing the next thing"); } } If this is possible how will it be the correct way to call the catch method? If this is not possible, could anyone point me in the right direction, of how to stop an exception from halting my program execution in Java without having to create any new classes in the package, or fixing the code that produces ArrayOutOfBoundsException error. Thanks in Advance, A Java Rookie

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  • Android Cannot execute setListAdapter() user thread.

    - by Ameya
    I got a class class MyClass extends ListActivity implements Runnable{ ArrayList array; onCreate(){ Thread thread = new Thread(this); hread.start(); } @Overriding void run(){ addAnElement(); } void addAnElement(){ if(null==array) array=new ArrayList(); array.add("Some junck string"); this.setListAdapter(.....,array); } } on executing in emulator get error ERROR/AndroidRuntime(288): android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views. I know we cannot access UI calls from user thread. Can anyone help.

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  • Odd values/movement with UITouch and CGPoint.

    - by Joshua
    I'm getting odd numbers from UITouch and CGPoint and one is different, I also think this maybe causing a flickering affect in my app when I try to move something by following a touch. This is the code I'm using: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"touchDown"); UITouch *touch = [touches anyObject]; firstTouch = [touch locationInView:self.view]; if (CGRectContainsPoint(but.frame, firstTouch)) { butContains = YES; NSLog(@"butContains = %d", butContains); } } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; currentTouch = [touch locationInView:self.view]; NSInteger x = currentTouch.x; NSInteger y = currentTouch.y; CGFloat CGX = (CGFloat)x; CGFloat CGY = (CGFloat)y; if (butContains == YES) { NSLog(@"touch in subView/contentView"); sub.frame = CGRectMake(CGX, CGY, 130.0, 21.0); } NSLog(@"touch moved"); } - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; currentTouch = [touch locationInView:self.view]; NSLog(@"User tapped at %@", NSStringFromCGPoint(currentTouch)); NSLog(@"Point %a, %a", currentTouch.x, currentTouch.y); NSInteger x = currentTouch.x; NSInteger y = currentTouch.y; NSLog(@"Point %a, %a", y, x); CGFloat CGX = (CGFloat)x; CGFloat CGY = (CGFloat)y; NSLog(@"Point %g, %g", CGX, CGY); if (butContains == YES) { NSLog(@"touch in subView/contentView"); sub.frame = CGRectMake(CGX, CGY, 130.0, 21.0); } butContains = NO; NSLog(@"touch ended"); } - (IBAction)add:(id)sender{ InSightViewController *contentView = [[InSightViewController alloc] initWithNibName:@"SubView" bundle:[NSBundle mainBundle]]; [contentView loadView]; [self.view insertSubview:contentView.view atIndex:0]; } This is what I get from the touchesEnded method in the Debugger. 2010-04-20 20:06:13.045 InSight[25042:207] User tapped at {50, 78} 2010-04-20 20:06:13.047 InSight[25042:207] Point 0x1.9p+5, 0x1.38p+6 2010-04-20 20:06:13.048 InSight[25042:207] Point 0x1.900000027p-1037, 0x1.38p+6 2010-04-20 20:06:13.048 InSight[25042:207] Point 50, 78 And this is what's happening in the Simulator. fwdr.org/file:y8bd As this is a complicated problem this is the source code of my XCode Project aswell. http://cl.ly/Qjj

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  • MouseLeave event in Silverlight 3 PopUp control

    - by AKa
    I want use PopUp (System.Windows.Controls.Primitives.PopUp) control to show some context menu. After mouse leaves, should automatically close. But eventhandler for MouseLeave is never executed. Why? SAMPLE: void DocumentLibrary_Loaded(object sender, RoutedEventArgs e) { DocumentLibraryDialog documentLibraryDialog = new DocumentLibraryDialog(); _popUpDocumentLibraryDialog = new Popup(); _popUpDocumentLibraryDialog.Width = 70; _popUpDocumentLibraryDialog.Height = 20; _popUpDocumentLibraryDialog.MouseLeave += new MouseEventHandler(_popUpDocumentLibraryDialog_MouseLeave); _popUpDocumentLibraryDialog.Child = documentLibraryDialog; } void _popUpDocumentLibraryDialog_MouseLeave(object sender, MouseEventArgs e) { Popup currentPopUp = (Popup)sender; if (currentPopUp.IsOpen) (currentPopUp.IsOpen) = false; } Regards Anton Kalcik

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  • How to store a reference to an integer in C#?

    - by Jonathon Reinhart
    Hello everyone - tell me how to make this work? Basically, I need an integer reference type (int* would work in C++) class Bar { private ref int m_ref; // This doesn't exist public A(ref int val) { m_ref = val; } public void AddOne() { m_ref++; } } class Program { static void main() { int foo = 7; Bar b = new Bar(ref foo); b.AddOne(); Console.WriteLine(foo); // This should print '8' } } Do I have to use boxing?

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  • UITouches not detecting.

    - by Tony
    Hi, My UItouches is not detecting in my Slideshow nib file. What is the problem? Can anyone help? @class Slideshow; @interface RootViewController : UIViewController{ PreferencesController *preferencesController; Slideshow *slideshow;} Slideshow Implementation @implementation Slideshow - (void) touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event { NSLog(@"touches begin"); } - (void)viewDidLoad { UIImageView *frontView = [[UIImageView alloc] initWithFrame:self.view.bounds]; frontView.backgroundColor = [UIColor blackColor]; frontView.image = [UIImage imageNamed:@"apple.png"]; frontView.userInteractionEnabled = YES; [self.view addSubview:frontView]; [frontView release]; }@end

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  • Need help in gridview displaying data

    - by sumit
    Hi all, I want to display all the data in gridview which i am inserting in runtime. For that i have written code but getting this error. "Both DataSource and DataSourceID are defined on 'GridView1'. Remove one definition." protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { BindData(); } } public void BindData() { string str = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString.ToString(); SqlConnection con = new SqlConnection(str); SqlDataAdapter da = new SqlDataAdapter("select * from Items where ItemId='" + TxtItemId.Text + "'", con); DataSet ds = new DataSet(); da.Fill(ds,"Items"); GridView1.DataSource = ds; GridView1.DataBind(); } Pls modify my code where is my mistake. Thanks, Sumit

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  • Calculating CPU frequency in C with RDTSC always returns 0

    - by Nazgulled
    Hi, The following piece of code was given to us from our instructor so we could measure some algorithms performance: #include <stdio.h> #include <unistd.h> static unsigned cyc_hi = 0, cyc_lo = 0; static void access_counter(unsigned *hi, unsigned *lo) { asm("rdtsc; movl %%edx,%0; movl %%eax,%1" : "=r" (*hi), "=r" (*lo) : /* No input */ : "%edx", "%eax"); } void start_counter() { access_counter(&cyc_hi, &cyc_lo); } double get_counter() { unsigned ncyc_hi, ncyc_lo, hi, lo, borrow; double result; access_counter(&ncyc_hi, &ncyc_lo); lo = ncyc_lo - cyc_lo; borrow = lo > ncyc_lo; hi = ncyc_hi - cyc_hi - borrow; result = (double) hi * (1 << 30) * 4 + lo; return result; } However, I need this code to be portable to machines with different CPU frequencies. For that, I'm trying to calculate the CPU frequency of the machine where the code is being run like this: int main(void) { double c1, c2; start_counter(); c1 = get_counter(); sleep(1); c2 = get_counter(); printf("CPU Frequency: %.1f MHz\n", (c2-c1)/1E6); printf("CPU Frequency: %.1f GHz\n", (c2-c1)/1E9); return 0; } The problem is that the result is always 0 and I can't understand why. I'm running Linux (Arch) as guest on VMware. On a friend's machine (MacBook) it is working to some extent; I mean, the result is bigger than 0 but it's variable because the CPU frequency is not fixed (we tried to fix it but for some reason we are not able to do it). He has a different machine which is running Linux (Ubuntu) as host and it also reports 0. This rules out the problem being on the virtual machine, which I thought it was the issue at first. Any ideas why this is happening and how can I fix it?

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  • How to remove child(Movieclip) and add to new parent (Movieclip)

    - by vineth
    Hi, I need to remove the child(movieClip) from the parent(movieClip) while dragging and add the same child(movieClip) to another movieclip when dropped. this method is used for dragging function pickUp(event:MouseEvent):void { event.target.startDrag(); } when i drop it function dropIt(event:MouseEvent):void { event.target.parent.removeChild(event.target); //for removing from previous parent clip event.target.dropTarget.parent.addChild(event.target); // add to new Moviclip } But the clip is not visible or not available while dropping... Help me to overcome from this Problem.

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  • Unresolved External symbol

    - by jay
    Hello, I am getting a linking error, and I'm not sure what its referring to. Here is the error 1Main.obj : error LNK2019: unresolved external symbol "public: void __thiscall BinaryHeap,class std::allocator ,class Comp,class std::allocator ::insert(class Item,class std::allocator const &)" (?insert@?$BinaryHeap@V?$Item@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@V?$Comp@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@@@QAEXABV?$Item@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@@Z) referenced in function "public: void __thiscall PriorityQueue,class std::allocator ::insertItem(int,class std::basic_string,class std::allocator const &)" (?insertItem@?$PriorityQueue@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@QAEXHABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) The code is rather long, however if you want me to post it I will. thanks

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  • Please help. Creating threads and wait till finsh

    - by Raj Aththanayake
    Hi I have two method calls that I want to call using two threads. Then I want them to wait till method executions get completed before continuing. My sample solution is something like below. public static void Main() { Console.WriteLine("Main thread starting."); String[] strThreads = new String[] { "one", "two" }; String ctemp = string.Empty; foreach (String c in strThreads) { ctemp = c; Thread thread = new Thread(delegate() { MethodCall(ctemp); }); thread.Start(); thread.Join(); } Console.WriteLine("Main thread ending."); Console.Read(); } public static void MethodCalls(string number) { Console.WriteLine("Method call " + number); } Is this will do the job? Or is there another better way to do the same thing?

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  • Asynchronous Sockets - Handling false socket.AcceptAsync values

    - by David
    The Socket class has a method .AcceptAsync which either returns true or false. I'd thought the false return value was an error condition, but in the samples Microsoft provide for Async sockets they call the callback function synchronously after checking for failure, as shown here: public void StartAccept(SocketAsyncEventArgs acceptEventArg) { if (acceptEventArg == null) { acceptEventArg = new SocketAsyncEventArgs(); acceptEventArg.Completed += new EventHandler<SocketAsyncEventArgs>(AcceptEventArg_Completed); } else { // socket must be cleared since the context object is being reused acceptEventArg.AcceptSocket = null; } m_maxNumberAcceptedClients.WaitOne(); bool willRaiseEvent = listenSocket.AcceptAsync(acceptEventArg); if (!willRaiseEvent) { ProcessAccept(acceptEventArg); } } /// <summary> /// This method is the callback method associated with Socket.AcceptAsync operations and is invoked /// when an accept operation is complete /// </summary> void AcceptEventArg_Completed(object sender, SocketAsyncEventArgs e) { ProcessAccept(e); } Why do they do this? It defeats the purpose of asynchronous sockets and stops the method from returning.

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