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Editor to share with you how to solve the button button in WPF while clicking many times to trigger the click problem, I believe that most people do not know much, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Solve the method of triggering click by clicking button button many times at the same time in WPF, the details are as follows

DateTime lastClick = DateTime.Now; object obj = new object (); int I = 0; private void Button_Click (object sender, RoutedEventArgs e) {this.IsEnabled = false; var t = (DateTime.Now-lastClick) .TotalMilliseconds; lastClick = DateTime.Now; System.Diagnostics.Debug.Print (t + "," + I + ";" + DateTime.Now); Thread.Sleep (2000); this.IsEnabled = true;}

The above code does not solve the problem that the user clicks the button twice and triggers it twice, because the ui thread is single-threaded, so this will cause the user to click twice in a row and call Button_Click again two seconds later. The output is as follows:

1207.069. 13:58:22, April 19, 2017.

2055.1176. 13:58:24 on April 19, 2017.

To force the interface refresh after this.IsEnabled = false;, the code is as follows:

Private void Button_Click (object sender, RoutedEventArgs e) {this.IsEnabled = false; DispatcherHelper.DoEvents (); var t = (DateTime.Now-lastClick) .TotalMilliseconds; lastClick = DateTime.Now; System.Diagnostics.Debug.Print (t + "," + I + ";" + DateTime.Now); Thread.Sleep (2000); this.IsEnabled = true } public static class DispatcherHelper {[SecurityPermissionAttribute (SecurityAction.Demand, Flags = SecurityPermissionFlag.UnmanagedCode)] public static void DoEvents () {DispatcherFrame frame = new DispatcherFrame (); Dispatcher.CurrentDispatcher.BeginInvoke (DispatcherPriority.Background, new DispatcherOperationCallback (ExitFrames), frame); try {Dispatcher.PushFrame (frame);} catch (InvalidOperationException) {} private static object ExitFrames (object frame) {(DispatcherFrame) frame). Continue = false; return null;}

DispatcherHelper.DoEvents (); this method forces the interface to refresh, and the problem is solved.

The above is all the contents of this article entitled "how to solve the problem of how to trigger click by clicking the button button multiple times in WPF". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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