For issue #561: Added missing resource for "Press 'Alt' to enter container" in WPF designer.

data/resources/StringResources.resx

@@ -8374,4 +8374,7 @@ Press Esc to cancel this operation.</value>
   <data name="AddIns.Git.Options.GitPath" xml:space="preserve">
     <value>Git Path</value>
   </data>
+  <data name="ICSharpCode.WpfDesign.AddIn.PressAltText" xml:space="preserve">
+    <value>Press "Alt" to enter Container</value>
+  </data>
 </root>

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.AddIn/Src/SharpDevelopTranslations.cs

@@ -28,7 +28,7 @@ namespace ICSharpCode.WpfDesign.AddIn
 	public class SharpDevelopTranslations : Translations
 	{
 		public override string PressAltText {
-			get { return StringParser.Parse("${res:AddIns.WpfDesign.AddIn.PressAltText}"); }
+			get { return StringParser.Parse("${res:ICSharpCode.WpfDesign.AddIn.PressAltText}"); }
 		}
 		
 		public static void Init() {