CODEWITHSUNDEEP
wpfxamltextboxtransparencyuwp
jb637
jb637

Reputation: 165

Text Box transparency issue - Universal Windows (UWP) App

I'm in the middle of creating a Universal Windows Platform (UWP) app. It's all gone smoothly, apart from this one issue which has got me really scratching my head over.

All I'm trying to do is set the background of a textbox to be 100% opaque. I've tried setting this in the XAML for the TextBox:

<Textbox Background="SteelBlue" Opacity="1"/>

But it comes out as some semi-transparent colour.

I've looked in the property editor, and it definitely says 100% Opacity.

But it comes out as semi-transparent, all the time. Just seems to be textboxes that are affected by this.

Has anyone else experienced this before?

Thanks in advance for any help you can give.

Upvotes: 2

Views: 900

Answers (1)

Chris W.
Chris W.

Reputation: 23280

So if we go check out the default style template we see a Border control as x:Name="BackgroundElement" that just happens to have an Opacity dependency property pointed via Opacity="{ThemeResource TextControlBackgroundRestOpacity}"

While I'm not quite sure why it has this, or where TextControlBackgroundRestOpacity lives off the top of my head. You could go find it in your solution and change the value, or just go hit the style template and pull it out or change the ThemeResource TextControlBackgroundRestOpacity to TemplateBinding Opacity and give it a default Setter so when you set it at the instance it will actually show that change on the control. Hope this helps and welcome to SO.

Upvotes: 1

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