WPF: Relative Source to DataTemplate

Question

If I have a data template as follows,

<DataTemplate DataType="{x:Type vm:EditorTabViewModel}"> <me:MarkdownEditor TextContent="{Binding Path=Content, RelativeSource={RelativeSource AncestorType={x:Type vm:EditorTabViewModel}}}" ... /> </DataTemplate>

I wonder why Relative source can't find the EditorTabViewModel? Its just referring to the data template?

UPDATE 1

The below works tho

<me:MarkdownEditor TextContent="{Binding Path=Content.Content, RelativeSource={RelativeSource Mode=TemplatedParent}}" /> Binding Path=Content.Content ^ Refers to EditorTabViewModel.Content ^ refers to EditorTabViewModel

Is there a more ituitive markup? lol, i'd thought RelativeSource={RelativeSource Mode=TemplatedParent}}" already refers to EditorTabViewModel at first

Kent Boogaart · Accepted Answer · 2011-09-28 00:47:49Z

1

Given that the DataTemplate is for objects of type EditorTabViewModel, its DataContext will already be a EditorTabViewModel. So you don't need to set a source at all:

TextContent="{Binding Content}" ... />

edited Sep 28, 2011 at 0:47

user142162

answered Nov 20, 2010 at 10:51

Kent Boogaart

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2 Comments

Jiew Meng Over a year ago

Hmm but if my MarkdownEditor is a UserControl that has DataContext = this I need to do that or else it will try to bind to a property of MarkdownEditor right?

John Bowen Over a year ago

Inside any DataTemplate the DataContext is always the data object the template is being applied to. When you have an explicitly specified DataType as in your example the DataContext will be an instance of that type.

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