I'm trying to modify default ContextMenu
for XamNumericEditor
on XamDataGrid
editable cell.
Here is my XAML-code:
<igDP:XamDataGrid.Resources>
<Style TargetType="{x:Type editors:XamNumericEditor}">
<Setter Property="ContextMenu">
<Se开发者_开发技巧tter.Value>
<ContextMenu>
<ContextMenu.Items>
<MenuItem Header="Select All"
Command="SelectAll">
<MenuItem.Icon>
<Image Source="..\icons\table_select_all.png"/>
</MenuItem.Icon>
</MenuItem>
<MenuItem Header="Accept for column"
Click="MenuItem_Click">
</MenuItem>
</ContextMenu.Items>
</ContextMenu>
</Setter.Value>
</Setter>
</Style>
</igDP:XamDataGrid.Resources>
Code behind file contains event hadler for this MenuItem:
private void MenuItem_Click(object sender, RoutedEventArgs e)
{
//...
}
But when I start it, I catch an exception with message: Unable to cast object of type 'System.Windows.Controls.MenuItem' to type 'System.Windows.Controls.ContextMenu'.
Can you help me with it? Thanks.
Try to add the ContextMenu
as a Resource and the reference it as a StaticResource
I don't have XamDataGrid
installed so I can't try it but it should be along the following lines.
<igDP:XamDataGrid.Resources>
<ContextMenu x:Key="contextMenu">
<ContextMenu.Items>
<MenuItem Header="Select All"
Command="SelectAll">
<MenuItem.Icon>
<Image Source="..\icons\table_select_all.png"/>
</MenuItem.Icon>
</MenuItem>
<MenuItem Header="Accept for column"
Click="MenuItem_Click"></MenuItem>
</ContextMenu.Items>
</ContextMenu>
<Style TargetType="{x:Type editors:XamNumericEditor}">
<Setter Property="ContextMenu" Value="{StaticResource contextMenu}"/>
</Style>
</igDP:XamDataGrid.Resources>
Alternatively, you could use an EventSetter
<MenuItem Header="Accept for column">
<MenuItem.Style>
<Style TargetType="MenuItem">
<EventSetter Event="Click" Handler="MenuItem_Click"/>
</Style>
</MenuItem.Style>
</MenuItem>
Update
To get the PlacementTarget
you'll need the ContextMenu
. You could pass this along as CommandParameter
<MenuItem Header="Accept for column"
CommandParameter="{Binding RelativeSource={RelativeSource AncestorType={x:Type ContextMenu}}}"
Click="MenuItem_Click">
</MenuItem>
private void MenuItem_Click(object sender, RoutedEventArgs e)
{
MenuItem menuItem = sender as MenuItem;
ContextMenu contextMenu = menuItem.CommandParameter as ContextMenu;
var placementTarget = contextMenu.PlacementTarget;
//...
}
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