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POHyperlink doesn't work properly with associated command
 

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  1. POHyperlink doesn't work properly with associated command
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    <p>I have <code>Hyperlink</code> in a <code>Grid</code>. I bind command to hyperlink that Enables/Disables it. Then I disable it using the command. Then on its parent (<code>Grid</code>) I set <code>IsEnabled=False</code> property. After that I enable my Hyperlink with my command and enable Grid, but hyperlink doesn't activate!</p> <p>Here is sample:</p> <pre><code>Command testCommand = new Command(); public MainWindow() { InitializeComponent(); hl.Command = testCommand; } private void Start(object sender, RoutedEventArgs e) { //Disable Hyperlink testCommand.Enabled = false; //Disable Grid grid.IsEnabled = false; //Enable Hyperlink testCommand.Enabled = true; //Enable Grid grid.IsEnabled = true; //hl.IsEnabled = true; //if uncomment this all will be work } </code></pre> <p>XAML:</p> <pre><code>&lt;Window x:Class="WpfApplication25.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="172" Width="165"&gt; &lt;StackPanel&gt; &lt;Grid x:Name="grid"&gt; &lt;TextBlock&gt; &lt;Hyperlink x:Name="hl"&gt;Test&lt;/Hyperlink&gt; &lt;/TextBlock&gt; &lt;/Grid&gt; &lt;Button Content="Start" Name="button1" Click="Start" /&gt; &lt;/StackPanel&gt; &lt;/Window&gt; </code></pre> <p>And register an ICommand:</p> <pre><code>public class Command : ICommand { private bool enabled; public bool Enabled { get { return enabled; } set { enabled = value; if (CanExecuteChanged != null) CanExecuteChanged(this, EventArgs.Empty); } } public bool CanExecute(object parameter) { return Enabled; } public event EventHandler CanExecuteChanged; public void Execute(object parameter) { } } </code></pre> <p><strong>Update:</strong></p> <p>If Hyperlink is replaced with Button, it will be enabled even if its parent is disabled (grid.IsEnabled = false).</p>
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    1. USL'Yosha
    1. USL'Yosha
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    1. COI don't see any command bindings setup to actually bind your testCommand's Execute and CanExecute implementations to the command itself. Did you just not include this part of your code? If you don't have command bindings setup, the control will never activate, regardless of any IsEnabled settings.
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      1. POHyperlink doesn't work properly with associated command
      1. USDana Cartwright
    2. COBy overwriting the binding to the command in the `Start` button, your XAML never receives command notifications as @DanaCartwright points out.
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      1. POHyperlink doesn't work properly with associated command
      1. USuser7116
    3. COI simplify my example. It's not due to `DataBinding`.
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      1. USL'Yosha
 

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