ComboBoxItem subclass - Style not applied

Ribbon for WPF Forum

Posted 8 years ago by Owen Christensen - Software Engineer, Minitab Inc.
Version: 10.2.0532
Platform: Silverlight Controls
Environment: Windows 7 (64-bit)
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I have two subclasses: one of Ribbon.Controls.ComboBox and one of ComboBoxItem.

Overriding GetContainerForItemOverride to return my ComboBoxItem subclass, causes all the styling to be lost on the item. I'm not overriding the metadata for DefaultStyleKeyProperty and even explicitly setting it to typeof(ComboBoxItem) doesn't seem to fix this issue...and ideas?

I've tested this subclassing as described with the only code being the override of GetContainerForItemOverride and it does the same so there is no possibility this is (directly) due to my code.

public sealed class BackstageComboBox : ActiproSoftware.Windows.Controls.Ribbon.Controls.ComboBox
    {
        protected override System.Windows.DependencyObject GetContainerForItemOverride()
        {
            return new BackstageComboBoxItem();
        }
    }

public sealed class BackstageComboBoxItem : ComboBoxItem { }
[Modified at 11/15/2010 03:42 PM]

[Modified at 11/15/2010 03:42 PM]

Comments (2)

Posted 8 years ago by Actipro Software Support - Cleveland, OH, USA
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Hi Owen,

We've made a tweak to our style for ribbon:ComboBox that will fix this in the next build.

But in the meantime you could probably do this in your item subclass:
this.SetResourceReference(StyleProperty, typeof(ComboBoxItem));
[Modified at 11/16/2010 09:32 AM]


Actipro Software Support

Posted 8 years ago by Owen Christensen - Software Engineer, Minitab Inc.
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Great! Appreciate the quick turnaround (as usual :))
The latest build of this product (v2018.1 build 0675) was released 1 month ago, which was after the last post in this thread.

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