Vista - WPF ListView data binding with embedded ComboBox

How can I set the SelectedItem in a ComboBox which is populated by collection
of custom objects, and also embedded in to a ListView .

This is the code sample that I ma using but it is not functioning.

this.Resources.Add("typeObjCollection", this.GetTypes());

<Page.Resources>
<CollectionViewSource Source="{StaticResource typeObjCollection}"
x:Key="cvs"/>
</Page.Resources>

<Grid>
<ListView Name="list">
<ListView.View>
<GridView>
<GridViewColumn Header="Type">
<GridViewColumn.CellTemplate>
<DataTemplate>
<ComboBox ItemsSource="{Binding Source={StaticResource
cvs}}" DisplayMemberPath="TypeName" IsSynchronizedWithCurrentItem="False"
SelectedItem="{Binding Path=myType, Mode=TwoWay,
UpdateSourceTrigger=PropertyChanged}"></ComboBox>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>

Highly appreciate your early response to this.

Hi,

Krish_xx wrote:
> How can I set the SelectedItem in a ComboBox which is populated by collection
> of custom objects, and also embedded in to a ListView .
>
> This is the code sample that I ma using but it is not functioning.
>
> this.Resources.Add("typeObjCollection", this.GetTypes());
>
> <Page.Resources>
> <CollectionViewSource Source="{StaticResource typeObjCollection}"
> x:Key="cvs"/>
> </Page.Resources>
>
> <Grid>
> <ListView Name="list">
> <ListView.View>
> <GridView>
> <GridViewColumn Header="Type">
> <GridViewColumn.CellTemplate>
> <DataTemplate>
> <ComboBox ItemsSource="{Binding Source={StaticResource
> cvs}}" DisplayMemberPath="TypeName" IsSynchronizedWithCurrentItem="False"
> SelectedItem="{Binding Path=myType, Mode=TwoWay,
> UpdateSourceTrigger=PropertyChanged}"></ComboBox>
> </DataTemplate>
> </GridViewColumn.CellTemplate>
> </GridViewColumn>
> </GridView>
> </ListView.View>
> </ListView>
>
> Highly appreciate your early response to this.

I think that the DataContext is not clear, since you didn't set the
"Source" property nor the "ElementName" on the binding.

The DataContext, if not set explicitly, is inherited through the logical
tree (the parent, or the parent's parent, etc...). Where is the "myType"
property defined? If it's on the Window, then you can set an x:Name on
the Window tag, and then use that name as ElementName on the binding.

HTH,
Laurent
--
Laurent Bugnion [MVP ASP.NET]
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