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POHow to force Visual Studio 2010 to ignore a WPF XAML declared DataContext at design time?
 

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  1. POHow to force Visual Studio 2010 to ignore a WPF XAML declared DataContext at design time?
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    <p>Quite often I will set up WPF UserControl with a declarative DataContext:</p> <pre><code>&lt;UserControl...&gt; &lt;UserControl.DataContext&gt; &lt;local:SomeModel x:Name="Model" /&gt; &lt;/UserControl.DataContext&gt; &lt;/UserControl&gt; </code></pre> <p>When in design mode, Visual Studio will attempt to instantiate the DataContext. However, when the DataContext is pulling data from a configuration file, Visual Studio 2010 will throw an error such as:</p> <blockquote> <p>Cannot create an instance of "SomeModel".</p> </blockquote> <p>When the error is thrown, the design time experience is of little or no value. If I comment out the DataContext, then the Visual Studio 2010 design mode works as expected, sans DataContext.</p> <p>Is there a way to have Visual Studio ignore the XAML declared DataContext at design time?</p>
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    1. CODid you find out a pure XAML way to do this since 2010 ?
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    2. COThere is not a pure XAML method; the issue is the designer is attempting to instantiate the Model. And if there are dependencies needed to create the Model, then the instantiation will fail.
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