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RibbonView with MVVM

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RibbonView and RibbonWindow
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yoochul
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yoochul asked on 07 May 2014, 07:57 AM
HI,

I want to change default image and show text in "Paint with MVVM" Sample.
Please, show attach file.

Thank you.

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Pavel R. Pavlov
Telerik team
answered on 08 May 2014, 11:59 AM
Hello,

When working with the RadRibbonView control you need to have in mind that its RadRibbonGroup control expose Icon property that can be used to customize the referenced picture. Furthermore, there is no string visualized because the RadRibbonGroup that is added in the referenced demo has its Header property not set. You need to set the Header of a group in order to visualize a string when the group is in collapsed variant. You can find more information in our RibbonGroup article

I hope this information is helpful.

Regards,
Pavel R. Pavlov
Telerik
 
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yoochul
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answered on 08 May 2014, 11:40 PM
I know icon, header in RadRibbonGroup

But,  I can't find how to access RadRibbonGroup in xaml or code in "Paint with MVVM" sample.

I want to code(or Xaml) sample to insert text('MyText') first RadRibbonGroup header;
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Kiril Vandov
Telerik team
answered on 12 May 2014, 10:45 AM
Hi,

It turns out that there is a bug in the RadRibbonGroup control and its header is not displayed when used in data-bound scenario via HierarchicalDataTemplate. We have logged that bug in our system and you could track its progress in our feedback portal. I have also updated your Telerik points as a small sign of appreciation for your cooperation.

However until this bug is fixed you could use a custom style for the RadRibbonGroup as a workaround. The problem is caused by the DropDownButton ( you can find that button by searching for x:Name="CollapsedButton" in the template) which is shown when the group is in collapsed state. In the current implementation we have binding to the button's TextProperty which is of type string, the HeaderProperty of the group is of type object and that is why the binding is failing. If we change the binding to target the Content property of the button the header is displayed as expected.

I have attached a sample project with the customized style for your convenience.

Please excuse us for any inconvenience caused.

Regards,
Kiril Vandov
Telerik
 
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RibbonView and RibbonWindow
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yoochul
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Pavel R. Pavlov
Telerik team
yoochul
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Kiril Vandov
Telerik team
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