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Three way CheckBox Column?
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This is a migrated thread and some comments may be shown as answers.
Dan Andrews
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Dan Andrews asked on 23 Jun 2011, 09:51 PM
I'd like to have a GridViewCheckBoxColumn who has three states, NULL, True, False.  Null will display the check box with a solid box in it, True would show the check, and False will show an empty box.  Any ideas while still using a GridViewCheckBoxColumn?

-Dan

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Ivan Ivanov
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answered on 24 Jun 2011, 03:21 PM
Hi Dan Andrews,

I would advise you to use a templated GridViewDataColumn in such a case. Please, refer to the attached example.

Regards,
Ivan Ivanov
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Dan Andrews
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answered on 24 Jun 2011, 04:25 PM
Thanks for getting back to me.  I ended up using a GridViewDataColumn with a RadToggleButton in the CellTemplate.  I was just hoping for a "IsThreeState" on a GridViewCheckBoxColumn or to make a suggestion for a future build.
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Ivan Ivanov
Telerik team
answered on 27 Jun 2011, 08:04 AM
Hello Dan Andrews,

There appears to be some issue with this feature in our latest builds. It will be fixed in one of our future releases. Meanwhile, I would advise you to use a templated GridViewDataColumn. Thank you.

Best wishes,
Ivan Ivanov
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Ivo
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answered on 08 Jan 2013, 09:26 AM
Hi Ivan,

has this issue ever been fixed? I am using build 2012.3.1017.1050 and facing the same behavior. Using DataTemplates is not a good option for my scenario. I have 8 CheckBox columns and I just want to set the checkbox to collapsed depending on the DataContexts's property. Using a data column, writing a template selector and 16 different data templates just for this feature is an overkill. I was hoping I could use the IsThreeState - Property with a VisualState to implement this.

It looks like CellTemplateSelector - property of GridViewCheckBoxColumn is not working either.

Best regards,
Stefan
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Ivan Ivanov
Telerik team
answered on 11 Jan 2013, 02:25 PM
Hi Stefan,

We will fix this property for the next internal build. It will be publicly available in the beginning of the next week.

All the best,
Ivan Ivanov
the Telerik team

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Dan Andrews
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Ivan Ivanov
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Dan Andrews
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Ivo
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