Expose UserControl property to XAML
- by Jared
WPF controls have certain properties (UserControl.Resources, UserControl.CommandBindings) that can have items added to them from the XAML of a user control declaration. Example:
<UserControl ... >
<UserControl.CommandBindings>
...
</UserControl.CommandBindings>
<UserControl.Resources>
...
</UserControl.Resources>
</UserControl>
I have a new list property defined in my user control:
public partial class ArchetypeControl : UserControl {
...
public List<Object> UICommands { get; set; }
I want to add items to this list like I can with resources and CommandBindings, but when I do this:
<c:ArchetypeControl.UICommands>
</c:ArchetypeControl.UICommands>
I get the error "Error 4 The attachable property 'UICommands' was not found in type 'ArchetypeControl'. "
Suggestions?
-
Given the comments, I've created a test control to show the entire code and reproduce the problem. I'm using visual studio 2010.
<UserControl x:Class="ArchetypesUI.TestControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:c="clr-namespace:ArchetypesUI"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<c:TestControl.TestObject>
</c:TestControl.TestObject>
<Grid>
</Grid>
</UserControl>
-
namespace ArchetypesUI
{
/// <summary>
/// Interaction logic for TestControl.xaml
/// </summary>
public partial class TestControl : UserControl
{
public Object TestObject { get; set; }
public TestControl()
{
InitializeComponent();
}
}
}
Now the error I get is "Error 2 The attached property 'TestControl.TestObject' is not defined on 'UserControl' or one of its base classes."
