c# - WPF: Command hindering button to enable -

i have 2 buttons.. @ beginning 1 of them enabled , other not. have 2 commands these buttons need implement keybindings them. these commands should replace click-methods buttons.

when first button clicked second button should become enabled. not working. if remove command of second button , add click-method instead works..

xaml:

<window x:class="wpfapplication1.mainwindow"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"         xmlns:local="clr-namespace:wpfapplication1"         mc:ignorable="d"         title="mainwindow" height="350" width="525">     <window.resources>         <routeduicommand x:key="first" />         <routeduicommand x:key="second" />     </window.resources>     <window.commandbindings>         <commandbinding command="{staticresource first}" executed="commandbinding_executed_1" />         <commandbinding command="{staticresource second}" canexecute="commandbinding_canexecute" executed="commandbinding_executed" />     </window.commandbindings>     <window.inputbindings>         <keybinding key="f4" command="{staticresource first}" />         <keybinding key="f5" command="{staticresource second}" />     </window.inputbindings>     <grid>         <button command="{staticresource first}" x:name="button" content="button" horizontalalignment="left" margin="154,146,0,0" verticalalignment="top" width="75"/>         <button command="{staticresource second}" isenabled="false" x:name="button1" content="button" horizontalalignment="left" margin="312,146,0,0" verticalalignment="top" width="75"/>     </grid> </window> 

xaml.cs

using system.windows;     using system.windows.input;      namespace wpfapplication1 {         /// <summary>         /// interaction logic mainwindow.xaml         /// </summary>         public partial class mainwindow : window {             public mainwindow() {                 initializecomponent();             }              private void commandbinding_executed(object sender, executedroutedeventargs e) {                 messagebox.show("test");             }              private void commandbinding_canexecute(object sender, canexecuteroutedeventargs e) {                 e.canexecute = button1.isenabled;             }              private void commandbinding_executed_1(object sender, executedroutedeventargs e) {                 button1.isenabled = true;             }         }     } 

when canexecute defined, button en- or disabled based on value of e.canexecute, therefor setting isenabled explicitly has no effect, since set implicitly.

you introduce variable returned commandbinding_canexecute - have desired effect far can tell.

public partial class mainwindow : window {      // other details elided      bool _enablebutton1 = false;      private void commandbinding_canexecute(object sender, canexecuteroutedeventargs e) {         e.canexecute = _enablebutton1;     }      private void commandbinding_executed_1(object sender, executedroutedeventargs e) {         enablebutton1 = true;     } } 

anyway, elide canexecute-action altogether , set isenabled explicitly. trick well.

public partial class mainwindow : window {      // elided      private void commandbinding_executed_1(object sender, executedroutedeventargs e) {         button1.isenabled = true;     } }