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POHow to display a Popup above mouse location?
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  1. POHow to display a Popup above mouse location?
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    copied!<p>I have a <code>DataGrid</code> control in my application in which I added a custom-defined <code>Popup</code> for some actions. The basic thing is: I have a matrix of <code>double</code> numbers displayed in a <code>DataGrid</code>. Right clicking on selected cells will make a popup appear, in which the user can type a value then press enter to shift the values selected (all of the values selected will be incremented with the value entered)</p> <p>Here is the current behavior:</p> <p><img src="https://i.stack.imgur.com/BBKEU.png" alt="Shift popup"></p> <p>And the XAML code for the popup:</p> <pre><code>&lt;Style x:Key="ShiftPopupStyle" TargetType="{x:Type Popup}"&gt; &lt;Setter Property="IsOpen" Value="False" /&gt; &lt;Setter Property="StaysOpen" Value="False" /&gt; &lt;Setter Property="AllowsTransparency" Value="True" /&gt; &lt;Setter Property="PopupAnimation" Value="Fade" /&gt; &lt;Setter Property="Placement" Value="Mouse" /&gt; &lt;Setter Property="Child"&gt; &lt;Setter.Value&gt; &lt;Border BorderBrush="Navy" Background="AliceBlue" BorderThickness="1" CornerRadius="2"&gt; &lt;StackPanel Orientation="Horizontal" Margin="5"&gt; &lt;TextBox Text="{Binding ShiftValue, UpdateSourceTrigger=PropertyChanged}" Width="30" Margin="4" &gt; &lt;TextBox.InputBindings&gt; &lt;KeyBinding Command="{Binding ShiftCommand}" Key="Enter" /&gt; &lt;/TextBox.InputBindings&gt; &lt;/TextBox&gt; &lt;Button Content="Shift" Margin="0,4,0,4" Command="{Binding ShiftCommand}"/&gt; &lt;/StackPanel&gt; &lt;/Border&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; </code></pre> <p>And here is how I open the <code>Popup</code>, this method is located in my custom <code>DataGrid</code> (I use a custom <code>DataGrid</code> able to display values from a 2D Array):</p> <pre><code>protected override void OnMouseRightButtonUp(System.Windows.Input.MouseButtonEventArgs e) { if (!this.IsReadOnly) { this.shiftPopup.IsOpen = true; } base.OnMouseRightButtonUp(e); } </code></pre> <p>Now, I need to add a <code>ContextMenu</code> to my <code>DataGrid</code>. When I try to add a <code>ContextMenu</code> directly on the <code>DataGrid</code>, I can see it before the grid is initialized, but afterwards, only the <code>Popup</code> shows up. No <code>ContextMenu</code> at all. I was expecting them to be at the same location, but the <code>ContextMenu</code> just won't appear.</p> <p>Ideally what I'd need is an Office-like <code>ContextMenu</code>:</p> <p><img src="https://i.stack.imgur.com/Rr3vX.png" alt="Office popup"></p> <p>In which my shift Popup would appear above the mouse pointer, and my <code>ContextMenu</code> at the usual position.</p> <p>If needed, I wouldn't care having a fixed layout (layout above/contextmenu under, whatever the mouse position is).</p> <p>Would you have any idea on how to do so?</p> <p>Alternatively, I was thinking about including the <code>Popup</code> content in the contextMenu, hoping it won't end up being ugly.</p> <p>Thanks for your help!</p>
 

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