How to apply a DataTemplate to a ListBox Introducing DataTemplates All controls deriving from ItemsControl have a DataTemplate that specifies how an object bound to an item is presented to the user. The default template renders a single line of text per item - as we know a listbox from HTML or WinForms. But WPF allows us to put whatever we like into a DataTemplate. If we want to display a list of
How can I check for an empty string in a trigger? <Trigger Property="Source" SourceName="ControlName" Value=""> <Setter Property="Height" Value="0" TargetName="ControlName" /> </Trigger> I have set the Height of the Control to 0 if the source of the imageControl is empty string or not set? How can I do it, Basically If the image is not set then I want to hide the image control in the template.
I have an Image element in XAML. I bind the Source property to a string property in my ViewModel. However, sometimes the value is null and then I get errors in the debug window. I read here: ImageSourceConverter error for Source=null that I could make a converter to return DependencyProperty.UnsetValue if the value is null. Now I'm wondering if it is possible to do it directly in XAML? Perhaps by
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