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I recently switched to Visual Studio 2017, and my xaml design time view has suffered considerably.

The most recent challenge is a design time-only bug where my components won't show up because their style_1093579 doesn't match style_0965327, but when I run the program, it works fine.

I agree that the numbers don't match, but I didn't add them, and can't figure out how to update them. I have tried cleaning, resetting, reverting, and manually deleting files. I've attached to the process to try to debug it. I've added [DesignTimeVisible(true)] to see if that would change anything - all I've managed to do is get some of the numbers to change. I've Googled, but even the promising questions, like TargetType does not match type of Element or 'Chart' TargetType does not match type of element 'Chart' either don't apply, or are not answered.

My best guess is that some auto generated file does not get regenerated correctly when I rebuild. (it's not the *.g.i.cs file though - I already tried deleting it.) Does anyone have another file I should try deleting, or a workaround?

bwall
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1 Answers1

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I had a similar problem when creating a view based on my custom ContentControl, where I had created a Style for my custom ContentControl.

Try to explicitly set the TargetType of the Style on the CustomButton to the one used on the element that the Style is defined with.

So in in a view that is based on your CustomButton

<my:CustomButton x:Class="MyModule.Views.MyButtonView">
    <my:CustomButton.Style>
        <Style BasedOn="{StaticResource StyleCustomButton}" TargetType="{x:Type my:CustomButton}" />
    </my:CustomButton.Style>
</my:CustomButton>

when StyleCustomButton is defined similar to this:

<Style x:Key="StyleCustomButton"
       TargetType="{x:Type my:CustomButton}">
...
FlyingFoX
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