Can't bind ItemsControl.ItemTemplate to List<object> element - wpf

Question

I'm in trouble. I created UserControl that looks below:
http://i.stack.imgur.com/ITxkS.jpg
I have dependency property "Text" bound to TextBlock.Text of the UserControl. I want to create another UserControl that visualize List. Here is my code:
<UserControl x:Class="ListPresenter.ListViewer"
xmlns:dop="clr-namespace:DeletableObjectPresenter;assembly=DeletableObjectPresenter"
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"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<Grid>
<ItemsControl ItemsSource="{Binding List, RelativeSource={RelativeSource AncestorType=UserControl}}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel></WrapPanel>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<ItemContainerTemplate>
<dop:DeletableObjectPresenter></dop:DeletableObjectPresenter>
</ItemContainerTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</Grid>
...
using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
namespace ListPresenter
{
/// <summary>
/// Interaction logic for ListViewer.xaml
/// </summary>
public partial class ListViewer : UserControl
{
public static readonly DependencyProperty ListProperty = DependencyProperty.Register(
"List", typeof (IList<object>), typeof (ListViewer), new PropertyMetadata(null));
public List<object> List
{
get { return (List<object>) GetValue(ListProperty); }
set { SetValue(ListProperty, value); }
}
public ListViewer()
{
InitializeComponent();
}
}
}
Here is look of my control:
http://i.stack.imgur.com/JIjHy.jpg
The problem is that i don't know how to bind Text of the Item to list's element. Thank you!

Answer 1

The first thing to do is to create a DependencyProperty for your Text property in your UserControl. You should data bind to this property in your UserControl:
<TextBlock Text="{Binding Text, RelativeSource={RelativeSource
AncestorType={x:Type dop:DeletableObjectPresenter}}}" />
Now you can data bind to the Text property of your UserControl from the ItemsControl.ItemTemplate:
<ItemsControl.ItemTemplate>
<DataTemplate>
<dop:DeletableObjectPresenter Text="{Binding PropertyToBindToText}" />
</DataTemplate>
</ItemsControl.ItemTemplate>
Of course, your objects in your List collection will need to have a property (named PropertyToBindToText in this example) to data bind to the Text property of your UserControl. As such, you'd be better off creating a strongly typed collection instead of your List<object> and furthermore, it is customary to use ObservableCollection<T> in WPF.
See the Data Binding Overview page on MSDN for further information.