ListboxItem self binding

Question

How can i bind a command parameter to self?

I try like this:

<ListBox.ItemContainerStyle>
   <Style TargetType="ListBoxItem">
      <Setter Property="Template">
         <Setter.Value>
            <ControlTemplate TargetType="ListBoxItem">
               <Button Content="G"
                       Background="Green"
                       Foreground="White"
                       Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}},
                                 Path=DataContext.LabelGoodCommand}"       
                       CommandParameter="{Binding /}"
                       Width="20" Height="20" />
            </ControlTemplate>
         </Setter.Value>
      </Setter>
   </Style>
</ListBox.ItemContainerStyle>

But this doesn't work. In viewmodel listbox items binding to ObservableCollection.

No, i know how to get a button, i need a model associated with item — l1pton17, Jan 27 '14 at 13:34

Sankarann · Answer 1 · 2014-01-27T13:46:11.343

CommandParameter="{Binding RelativeSource={x:Static RelativeSource.Self}}"

By this you can get the Control and in your Execute method, Use as like this,

if(pram is Button)
{
    var model = ((Button)pram).DataContext;
}

you can get the Model here.

OR

           <Button Content="G"
                   Background="Green"
                   Foreground="White"
                   Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}},
                             Path=DataContext.LabelGoodCommand}"       
                   CommandParameter="{TemplateBinding DataContext}"
                   Width="20" Height="20" />

OR

<Button Content="G"
                   Background="Green"
                   Foreground="White"
                   Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}},
                             Path=DataContext.LabelGoodCommand}"       
                   CommandParameter="{Binding DataContext,RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}"
                   Width="20" Height="20" />

Looks like a hack. There is the normal way?Thank you – l1pton17 Jan 27 '14 at 13:44 — l1pton17, Jan 27 '14 at 13:44

Thomas Levesque · Accepted Answer · 2014-01-27T13:47:12.757

-1

If by "self", you mean the button, you can do that:

CommandParameter="{Binding RelativeSource={x:Static RelativeSource.Self}}"

If you want the current DataContext, just don't specify the path:

CommandParameter="{Binding}"

edited Jan 27 '14 at 13:47

answered Jan 27 '14 at 13:30

Thomas Levesque

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By this way i get a button instead of model. I need a model in parameter – l1pton17 Jan 27 '14 at 13:33
LOL, i try {Binding /}, but answer just was {Binding}. – l1pton17 Jan 27 '14 at 13:49

ListboxItem self binding

2 Answers2