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Validation Not Triggering On Load - RadGridView

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Thanos
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Thanos asked on 31 Jan 2017, 02:16 PM

I have a RadGridView that uses Row-Level Validation (as per this article) to validate the objects in the Collection we bind to. When Adding or Editing grid items, the Validation works as expected.

However, if the user loads data that is not valid, the RadGridView does not highlight those rows in red. The user as to try to edit the row before the red invalid indication appears.

Is there a way to force the RadGridView to validate its contents? Or perhaps there is a different Validation Event I need to listen for?

Thanks for your help,
-Thanos

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Dilyan Traykov
Telerik team
answered on 03 Feb 2017, 09:08 AM
Hello Thanos,

As suggested in the following article, each one of the validation events is fired only when the user is trying to commit new data in the RadGridView control. They were designed to only handle new data inserted by the user and do not occur when RadGridView loads data.

If you need to handle the validation on load, you will need to use another mechanism - either through DataAnnotations or through the IDataErrorInfo/INotifyDataErrorInfo interfaces.

Regards,
Dilyan Traykov
Telerik by Progress
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Dilyan Traykov
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