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POWINRT XAML System.Void Compile Error in
 

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  1. POWINRT XAML System.Void Compile Error in
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    <p>after a little code change inside a Store App I ran into a compilation error:</p> <p>-> System.Void cannot be used from C# -- use typeof(void) to get the void type object.</p> <p>Problem is: this comes from a generated file: XamlTypeInfo.g.cs.</p> <pre><code>case "System.Void" userType= new ... ,typeof(global::System.Void), ... ... </code></pre> <p>Rolling back the changes did not help, as deleting bin &amp; obj, restarting, etc.</p> <p>Is the actual System.Void case entry maybe an indicator that something within a XAML file could not be recognized by the code generator? Is there an System.Void entry in a working XamlTypeInfo.g.cs?</p> <p>--- ADDITION --- I can now produce the compile error when changing specific lines. I have a custom control deriving from ItemsControl. I define a regular DP which works fine. I am also providing AttachedProperties for Template, TemplateSelector and Style. Think of a Textbox that gets an Label via an AttachedProperty and its not just a string but like HeaderedControls you can define a Template etc. for the Lable.</p> <p>The Problem is related to the Get/Set Methods for the AttachedProp. When I either change the Getter return type to DataTemplate or I comment out the Setter fully then the compile error comes:</p> <pre><code>public static DataTemplate GetLabelTEmplate(UIElement element) { return (DataTemplate)element.GetValue(LabelTemplateProperty; } public static void SetLabelTemplate(UIElement element, object value) { element.SetValue(LabelTemplateProperty, value); } </code></pre> <p>Any ideas would be highly appreciated.</p> <p>Best regards Gope</p>
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    1. COCan you post the XAML associated with this attached property?
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    2. COThere is no XAML using the properties yet. Just the control and it doesn't compile. Interesting though a colleague used the same project from another branch to manually add those APs and it compiles. XamlTypeInfo is generated correctly. I will try creating a new project and move things over, just to see if it works.
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    3. COI just filed a bug report with an attachment at connect.microsoft: https://connect.microsoft.com/VisualStudio/feedback/details/779775/windows-8-store-apps-attachedproperties-of-referencetypes-results-in-compile-error-system-void Let's see what they think about it.
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