具有不同内部datagrid ItemSource属性的WPF UserControls

Question

I've got three UserControls named UC. They are all the same except that the DataGrid they use within the layout needs a different DynamicResource for each. Basically :

<DataGrid ...
 ItemsSource="{DynamicResource Model1}"> <!-- I want to pass in this "Model1" string? -->

...
</DataGrid>

<DataGrid ...
 ItemsSource="{DynamicResource Model2}">

...
</DataGrid>

<DataGrid ...
 ItemsSource="{DynamicResource Model3}">

...
</DataGrid>

All of my user controls are created within a Window :

<Window ...>

<my:UC/>
<my:UC/>
<my:UC/>

</Window>

As of right now my three UC's show the same data in the datagrid cause the dynamicresource is the same in all three, how do I pass a value to each usercontrol to change the dynamicresource within? Or how should this be handled I started doing WPF a day ago.

Thanks

Answer 1

Create a dependency property in your user control which will hold the ItemsSource value ( DependencyProperty.Register ). In your control bind DataGrid to this property. Then set this property in your window from dynamic resources:

<Window ...>
    <my:UC DataGridItemsSource="{DynamicResource Model1}" />
    <my:UC DataGridItemsSource="{DynamicResource Model2}" />
    <my:UC DataGridItemsSource="{DynamicResource Model3}" />
</Window>

In order to bind DataGrid.ItemsSource in your control you can use either binding with ElementName=parentName or binding with RelativeSource=FindAncestor