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How to validate the AddNewRow value based on already existing records?

You can validate the newly adding row value based on the existing records by using CurrentCellValidating event like below,

C#               

 

You can also use RowValidating event to validate the row when the cell is edited. The RowValidating event occurs when the edited cells tries to commit the row data or lose the focus.

C:\Users\jaiganeshs\Desktop\Validation.png

 

Sample:

WPF

UWP

Article ID: Published Date: Last Revised Date: Platform: Control: .NET Framework:
6597 03/31/2016 09/30/2016 UWP SfDataGrid 4.5
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