Bind to a markup externsion property
- by user314580
Hi,
I have written a markup extension which stores amongst others a help text.
This help text is shown on the right side of the main window. This works fine.
Now, I want to add a tooltip for every control. The content of the tooltip should be same as for the helptext extension.
The XAML code:
<ListView ctrl:ListViewLayoutManager.Enabled="true"
x:Name="ListViewSources"
ItemsSource="{Binding SourceItems}"
ItemContainerStyle="{DynamicResource ListViewItemStyleAlternate}"
Height="150"
MinWidth="350"
Helper:HelpExtension.IsControl="true"
Helper:HelpExtension.HelpText="{x:Static strings:GUIResource.HelpProfilesSourcesDescriptionText}" >
<ListView.ToolTip>
<ToolTip Style="{DynamicResource Own_TooltipStyle}"></ToolTip>
</ListView.ToolTip>
And now the code of the style:
If I run the program I get the binding error:
System.Windows.Data Error: 39 : BindingExpression path error: 'Helper:HelpExtension' property not found on 'object' ''ListView' (Name='ListViewSources')'. BindingExpression:Path=Helper:HelpExtension.HelpText; DataItem='ListView' (Name='ListViewSources'); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')
Does anybody know how I can bind the TextBlock to the content of Helper:HelpExternsion.HelpText?
Thanks
Dieter
