In wpf how to access window.resources in usercontrol

Question

I have a child usercontrol and I am having trouble accessing its parent usercontrol's resources. The resource is a collectionViewSource and its source is set in the code behind of the parent usercontrol, the source is set to a query result from LINQ to SQL. Both usercontrols are defined in their own xaml file. I tried using DynamicResource and it complained saying it needs to be used with a DepenednecyProperty or so...

parent usercontrol:

...
<UserControl.Resources>
    <CollectionViewSource x:Key="UsageTypeSource"/>
</UserControl.Resources>
...

child usercontrol:

...
<ComboBox Height="28" HorizontalAlignment="Left" Margin="147,1,0,0" x:Name="cbxUsage"
          Grid.Column="1" Grid.Row="2" Width="186"
          SelectedItem="{Binding Path=UsageType, ValidatesOnExceptions=true, NotifyOnValidationError=true}"
          VerticalAlignment="Top" SelectedValuePath="ID"
          SelectedValue="{Binding Path=Usage}"
          ItemsSource="{Binding Source={StaticResource UsageTypeSource}}"
          DisplayMemberPath="Type"/>
...

The error I am getting is 'The resource "UsageTypeSource" could not be resolved'

Can you provide the proper way to access the resource

Thanks in advance Ash

It's not related to your problem, but does it really make sense to bind both `SelectedItem` and `SelectedValue`? — Clemens, Mar 14 '13 at 20:43
@Clemens it does on some situations, I don't know specifically this one. — Federico Berasategui, Mar 14 '13 at 20:47
I initially had it using SelectedValue and forgot to remove it, thanks for pointing it. — Ash, Apr 11 '13 at 15:39

score 2 · Accepted Answer · answered Mar 14 '13 at 20:40

2

Try this:

ItemsSource="{DynamicResource UsageTypeSource}}"/>

answered Mar 14 '13 at 20:40

Federico Berasategui

43,562
11
100
154

@Clemens not really, he's probably doing `{Binding Source={DynamicResource ..}}` which is not allowed, because the Source property of the `Binding` class is not a DP. – Federico Berasategui Mar 14 '13 at 20:42

score 1 · Answer 2 · answered Aug 09 '20 at 22:15

1

Instead of

<UserControl.Resources> ... </UserControl.Resources>

Use

<Control.Resources> ... </Control.Resources>

answered Aug 09 '20 at 22:15

Dlear Ahmad

36
4

In wpf how to access window.resources in usercontrol

2 Answers2