Question

I’m developing a Windows Phone 7 app, where I databind an Image Source property, and use a converter to produce the image. Like so:

<Image Source="{Binding Image, Converter={StaticResource MyImageConverter}}"></Image>

This works on the emulator, but crashes the designer, because MyImageConverter has dependencies on other code that is not instantiated by the designer. Is there any way I can make the designer ignore this attribute, or even better, can I specify another Source that is only used by the designer? I’m using Visual Studio 2010, if it matters.

Answer 1

If by ‘designer’ you are referring to Blend or Cider (VS designer), you can use the following to find if you are in design mode or not

public static bool IsInDesignMode
{
    get
    {
        return DesignerProperties.GetIsInDesignMode(new DependencyObject());
    }
}

Then wrap your code accordingly.