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Changing Background_Disabled color?

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DataForm
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Jeff
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Jeff asked on 22 Mar 2012, 10:00 PM
I'm trying to change the color of a RadDataForm, when it's disabled.

I've found these instructions: http://www.telerik.com/help/wpf/raddatafor-styles-and-templates-styling-raddataform.html

But when I load my solution file in Microsoft Expression Blend 4, I get exceptions:

XamlParseException: 'Office_Black' is not a valid value for property 'Theme'.

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Ivan Ivanov
Telerik team
answered on 23 Mar 2012, 11:04 AM
Hi Jeff,

I have tested such scenario with 2012.1 215, by extracting its template. I have not encountered neither design-time, nor run-time errors. Would you please confirm which version of RadControls you are currently using?

Kind regards,
Ivan Ivanov
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Jeff
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answered on 23 Mar 2012, 04:11 PM
I tried it in a simple test project, and had no troubles.  I'm not certain, at this time, what the problem is in my production project.

Is there a way of just setting the Background_Disabled brush, without copying 100+ lines of style definition?  It's not just that I don't want to change any of it, I want to keep what's being defined on the higher level.

In truth, I don't want to copy and edit the default style, I want to inherit from it and change just the one value I am interested in.

I mean, if someone changes the application theme the default style will change, except for the controls that I've applied my copied style to.  And I don't want that.  I just want the Background_Disabled to be different, on a certain set of RadDataForms, regardless of what theme is set.
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Ivan Ivanov
Telerik team
answered on 26 Mar 2012, 01:01 PM
Hi Jeff,

Currently there are two options to achieve this. The first one is to predefine the template and the second one - to find the element in the visual tree at run-time and set its background property. That is how the framework works and unfortunately it is impossible for us to expose every single brush through a property, as this will severely damage our API's usability. However, with Q1 SP, we will introduce an implicit-style-based theming mechanism that would make the things easier in your scenario, because you would have direct access to the resources.

All the best,
Ivan Ivanov
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Jeff
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answered on 26 Mar 2012, 03:58 PM
This is working:
foreach (Border border in myControl.ChildrenOfType<Border>())
{
    if (border.Name == "Background_Disabled")
        border.Background = Brushes.Transparent;
}
Thanks.
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Ivan Ivanov
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Jeff
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