Silverlight DockPanel exception in runtime
I have a DockPanel in a UserControl, and in the designer looks everything fine, but I get an exception in runtime from the InitializeComponent():
The type 'DockPanel' was not found because 'http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit' is an unknown namespace.
Any idea?
<UserControl x:Class="Controls.PropertiesControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:my="clr-namespace:Controls"
xmlns:toolkit="http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit"
mc:Ignorable="d"
d:DesignHeight="250" d:DesignWidth="800"
>
<Grid x:Name="LayoutRoot" Background="White">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<toolkit:DockPanel Background="Gray" Grid.Row="0" Grid.Column="0" />
</Grid>
</Grid>
</UserControl>
Do you reference the correct System.Windows.Controls.Toolkit.dll assembly in your project? If you're using Silverlight 4, also make sure it's the right version 4 (not 3).
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