How to recognize double clicks when closing WPF context menu - wpf

Question

This is an example that highlights the problem:
<TextBlock Text="double click me" Width="150" Height="25"
ContextMenuOpening="TextBlock_ContextMenuOpening"
Mouse.MouseDown="TextBlock_MouseDown">
<TextBlock.ContextMenu>
<ContextMenu>
<MenuItem Header="test" />
</ContextMenu>
</TextBlock.ContextMenu>
</TextBlock>
When the context menu is open, I double click the TextBlock. The first hit of TextBlock_MouseDown has e.ClickCount = 1 as expected, but so does the second. Is there any way I can get the clicks to be part of the same chain?

Answer 1

The first click closes the ContextMenu so you should be able to handle the ContextMenuClosing and then compare the total time elapsed between when the ContextMenu was closed and when the TextBlock was clicked again, e.g.:
DateTime dt;
private void TextBlock_MouseDown(object sender, MouseButtonEventArgs e)
{
if (DateTime.Now.Subtract(dt).TotalSeconds <= 0.3)
{
MessageBox.Show("double click detected!");
dt = DateTime.MinValue;
}
}
private void TextBlock_ContextMenuClosing(object sender, ContextMenuEventArgs e)
{
dt = DateTime.Now;
}
<TextBlock Text="double click me" Width="150" Height="25"
ContextMenuClosing="TextBlock_ContextMenuClosing"
Mouse.MouseDown="TextBlock_MouseDown">
<TextBlock.ContextMenu>
<ContextMenu>
<MenuItem Header="test" />
</ContextMenu>
</TextBlock.ContextMenu>
</TextBlock>

Answer 2

How about using StaysOpenOnClick="True". You can close it after the double click:
<TextBlock Text="double click me" Width="150" Height="25" >
<TextBlock.ContextMenu>
<ContextMenu Name="cm">
<MenuItem PreviewMouseDoubleClick="MenuItem_PreviewMouseDoubleClick" Header="test"
StaysOpenOnClick="True" />
</ContextMenu>
</TextBlock.ContextMenu>
</TextBlock>
in code:
private void MenuItem_PreviewMouseDoubleClick(object sender, MouseButtonEventArgs e)
{
// ...
cm.IsOpen = false;
}
Also note that there is a StaysOpen property in ContextMenu too, and you can use it.