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I have tested the Row Validated event once again and it is thrown as expected when Rad Grid View loses focus.I used Q3 2010 SP1 (2010.3.10.1215) version for my tests.We regret to inform you that, the Current Cell Value Changed event will not be trigger for Grid Combox Box Column and Grid Template Column in Sf Data Grid.For Grid Combo Box Column, you have to use Current Cell Drop Down Selection Changed event for notify the value changes and for Grid Template Column you have to use separate event as per the control that you have loaded in it.I am validating user input in the Cell Validating event of a Data Grid View control and when the user inputs an illegal value, I show a messagebox.The problem is that the Cell Validating event fires twice and hence the messagebox appears twice.

You can validate the cells using Current Cell Validating event when the cell is edited. You can show the error information in row header by setting IData Error Info. Master-Details View support to validate the cells and rows using Current Cell Validating and Row Validating events.Could you strip only a part of your code and send it as a small example to allow us looking into this issue?In order to be able to send us your project, you have to open a new support ticket.However, I would still like to investigate the issue further.To do that, I need a sample project, which demonstrates the issue.For an example, you have loaded the Combo Box Adv control where you have you can use Selection Changed event to notify the selection changed.

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