Binding on Freezables in Templates

Say for example I have a DataTemplate as such:

<DataTemplate>
<Grid>
<Grid.RenderTransform>
<RotateTransform />
</Grid.RenderTransform>
</Grid>
</DataTemplate>

How can I bind the Angle property of the RotateTransform?

* I can't set it directly because it's a freezable. : This Freezable can
not be frozen.

<DataTemplate>
<Grid>
<Grid.RenderTransform>
<RotateTransform Angle="{Binding}" />
</Grid.RenderTransform>
</Grid>
</DataTemplate>

* I can't set it in a Trigger? : Error at element 'Setter' : Cannot find
the Trigger target 'rotation'..

<DataTemplate>
<Grid>
<Grid.RenderTransform>
<RotateTransform x:Name="rotation" />
</Grid.RenderTransform>
<Button />
</Grid>
<DataTemplate.Triggers>
<Trigger Property="IsLoaded" Value="True">
<Setter TargetName="rotation" Property="Angle" Value="{Binding}" />
</Trigger>
</DataTemplate.Triggers>
</DataTemplate>

* I can't use a property path in a Trigger? : Cannot find the Type 'RenderTransform.(RotateTransform'.
Note that Type names are case sensitive.
- Aside: I can animate a property path, but I can' "set" one, why not?

<DataTemplate>
<Grid Name="Grid">
<Grid.RenderTransform>
<RotateTransform />
</Grid.RenderTransform>
<Button />
</Grid>
<DataTemplate.Triggers>
<Trigger Property="IsLoaded" Value="True">
<Setter TargetName="Grid" Property="RenderTransform.(RotateTransform.Angle)"
Value="{Binding}" />
</Trigger>
</DataTemplate.Triggers>
</DataTemplate>

Help! I'm running out of ideas.

- Doug

For the last sample I think it's
<Setter TargetName="Grid"
Property="(Grid.RenderTransform).(RotateTransform.Angle)" Value="{Binding}" />

Valentin


"Doug" wrote:

> Say for example I have a DataTemplate as such:
>
> <DataTemplate>
> <Grid>
> <Grid.RenderTransform>
> <RotateTransform />
> </Grid.RenderTransform>
> </Grid>
> </DataTemplate>
>
> How can I bind the Angle property of the RotateTransform?
>
> * I can't set it directly because it's a freezable. : This Freezable can
> not be frozen.
>
> <DataTemplate>
> <Grid>
> <Grid.RenderTransform>
> <RotateTransform Angle="{Binding}" />
> </Grid.RenderTransform>
> </Grid>
> </DataTemplate>
>
> * I can't set it in a Trigger? : Error at element 'Setter' : Cannot find
> the Trigger target 'rotation'..
>
> <DataTemplate>
> <Grid>
> <Grid.RenderTransform>
> <RotateTransform x:Name="rotation" />
> </Grid.RenderTransform>
> <Button />
> </Grid>
> <DataTemplate.Triggers>
> <Trigger Property="IsLoaded" Value="True">
> <Setter TargetName="rotation" Property="Angle" Value="{Binding}" />
> </Trigger>
> </DataTemplate.Triggers>
> </DataTemplate>
>
> * I can't use a property path in a Trigger? : Cannot find the Type 'RenderTransform.(RotateTransform'.
> Note that Type names are case sensitive.
> - Aside: I can animate a property path, but I can' "set" one, why not?
>
> <DataTemplate>
> <Grid Name="Grid">
> <Grid.RenderTransform>
> <RotateTransform />
> </Grid.RenderTransform>
> <Button />
> </Grid>
> <DataTemplate.Triggers>
> <Trigger Property="IsLoaded" Value="True">
> <Setter TargetName="Grid" Property="RenderTransform.(RotateTransform.Angle)"
> Value="{Binding}" />
> </Trigger>
> </DataTemplate.Triggers>
> </DataTemplate>
>
> Help! I'm running out of ideas.
>
> - Doug
>
>
>