TelerikWindowManager - proper sizing of content in Window

If the view shown by WindowManager is a UserControl, size definitions
(Width/Height and also Min/Max values) will be tranferred to the hosting
RadWindow.
This makes resizing of a dialog to work properly, stretching the content
of the view.

WPF/Caliburn.Micro.Telerik/TelerikWindowManager.cs

@@ -116,12 +116,18 @@ protected virtual RadWindow EnsureRadWindow(object model, object view, bool isDi
 
 			if (window == null)
 			{
+				var contentElement = view as FrameworkElement;
+				if (contentElement == null)
+					throw new ArgumentNullException("view");
+
 				window = new RadWindow
 				{
 					Content = view,
 					SizeToContent = true,
 				};
 
+				AdjustWindowAndContentSize(window, contentElement);
+
 				window.SetValue(View.IsGeneratedProperty, true);
 
 				var owner = GetActiveWindow();
@@ -147,6 +153,35 @@ protected virtual RadWindow EnsureRadWindow(object model, object view, bool isDi
 			return window;
 		}
 
+		/// <summary>
+		/// Initializes Window size with values extracted by the view.
+		/// 
+		/// Note:
+		///	The real size of the content will be smaller than provided values.
+		///	The form has the header (title) and border so they will take place.
+		/// 
+		/// </summary>
+		/// <param name="window">The RadWindow</param>
+		/// <param name="view">The view</param>
+		private static void AdjustWindowAndContentSize(RadWindow window, FrameworkElement view)
+		{
+			window.MinWidth = view.MinWidth;
+			window.MaxWidth = view.MaxWidth;
+			window.Width = view.Width;
+			window.MinHeight = view.MinHeight;
+			window.MaxHeight = view.MaxHeight;
+			window.Height = view.Height;
+
+			// Resetting view's settings
+			view.Width = view.Height = Double.NaN;
+			view.MinWidth = view.MinHeight = 0;
+			view.MaxWidth = view.MaxHeight = int.MaxValue;
+
+			// Stretching content to the Window
+			view.VerticalAlignment = VerticalAlignment.Stretch;
+			view.HorizontalAlignment = HorizontalAlignment.Stretch;
+		}
+
 		/// <summary>
 		/// Infers the owner of the window.
 		/// </summary>

WPF/Examples.RadWindowManager/DialogView.xaml

@@ -1,28 +1,30 @@
-<UserControl x:Class="Examples.TelerikWindowManager.DialogView"
-			 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:telerik="http://schemas.telerik.com/2008/xaml/presentation"
-			 mc:Ignorable="d"
-			 d:DesignHeight="300"
-			 d:DesignWidth="400"
-			 Height="400"
-			 Width="600">
-
-	<Grid x:Name="LayoutRoot"
-		  Background="White">
-
-		<TextBlock Text="Dialog view"
-				   FontSize="26"
-				   Margin="10" />
-
-		<telerik:RadButton Content="Close"
-						   x:Name="Close"
-						   Width="100"
-						   Height="26"
-						   Margin="20"
-						   VerticalAlignment="Bottom"
-						   HorizontalAlignment="Right" />
-	</Grid>
-</UserControl>
+<UserControl x:Class="Examples.TelerikWindowManager.DialogView"
+			 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:telerik="http://schemas.telerik.com/2008/xaml/presentation"
+			 mc:Ignorable="d"
+			 d:DesignHeight="300"
+			 d:DesignWidth="400"
+			 MinHeight="200"
+			 Height="300"
+			 MinWidth="300"
+			 Width="400">
+
+	<Grid x:Name="LayoutRoot"
+		  Background="White">
+
+		<TextBlock Text="Dialog view"
+				   FontSize="26"
+				   Margin="10" />
+
+		<telerik:RadButton Content="Close"
+						   x:Name="Close"
+						   Width="100"
+						   Height="26"
+						   Margin="20"
+						   VerticalAlignment="Bottom"
+						   HorizontalAlignment="Right" />
+	</Grid>
+</UserControl>