Databinding a list of items into a panel

I am databinding a list of items into an ItemsControl. I want each item to
have a specific position on the screen (which would be - ideally -
databound). So I changed the ItemsPanel to a Canvas.

It works perfectly if I don't use the databound version (i.e., if I simply
write items down inside the ItemsControl). But if I use the ItemsSource
property, the Canvas.Top property seems to be ignored (all items are
displayed at 0)!

The relevant code fragment is below:

<UserControl x:Class="Octgn.Play.Gui.TableControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:gui="clr-namespace:MyNamespace.Gui">

<UserControl.Resources>
<DataTemplate x:Key="CardTemplate">
<gui:CardControl Canvas.Top="30" />
</DataTemplate>
</UserControl.Resources>

<ItemsControl x:Name="presenter" ItemsSource="{Binding Cards}"
ItemTemplate="{StaticResource CardTemplate}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<Canvas />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>

</UserControl>

I've spent a huge amount of time trying to get this to work, without success
so far. So thank you very much if you can tell me what's wrong with it.

See
http://www.i-constructions.com/myblo...tabinding.html

Hope this helps.
--
Valentin Iliescu [MVP - Client Application Development]


"jods" wrote:

> I am databinding a list of items into an ItemsControl. I want each item to
> have a specific position on the screen (which would be - ideally -
> databound). So I changed the ItemsPanel to a Canvas.
>
> It works perfectly if I don't use the databound version (i.e., if I simply
> write items down inside the ItemsControl). But if I use the ItemsSource
> property, the Canvas.Top property seems to be ignored (all items are
> displayed at 0)!
>
> The relevant code fragment is below:
>
> <UserControl x:Class="Octgn.Play.Gui.TableControl"
> xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
> xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
> xmlns:gui="clr-namespace:MyNamespace.Gui">
>
> <UserControl.Resources>
> <DataTemplate x:Key="CardTemplate">
> <gui:CardControl Canvas.Top="30" />
> </DataTemplate>
> </UserControl.Resources>
>
> <ItemsControl x:Name="presenter" ItemsSource="{Binding Cards}"
> ItemTemplate="{StaticResource CardTemplate}">
> <ItemsControl.ItemsPanel>
> <ItemsPanelTemplate>
> <Canvas />
> </ItemsPanelTemplate>
> </ItemsControl.ItemsPanel>
> </ItemsControl>
>
> </UserControl>
>
> I've spent a huge amount of time trying to get this to work, without success
> so far. So thank you very much if you can tell me what's wrong with it.

Thanks for the quick answer! My google-fu is too weak apparently, because
I've looked for such a post but didn't find anything useful...

This blog explains and solves exactly the problem that I'm experiencing.

Regards,
jods