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Datagridview cellvalidating not working

Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site. Private Sub my Data Grid View_Cell Validating(By Val sender As Object, By Val e As Data Grid View Cell Validating Event Args) Handles my Data Grid View. Show("You have left the cell empty") ' Fail validation (prevent them from leaving the cell) e.

It seems that once the user enters any character, I'm sunk. The bottom line is that it works, but it's pretty ugly.

Deleting everything in the cell still does not evaluate to a NULL Thanks ll. Value I put that in a button on the form, and entered some data, and then set the value. I guess the experts are laughing at me, but I'm not the least bit impressed with

Jake Jake, I can't get this to work, and I'm very frustrated, so instead of venting my thought on ... Thanks, and maybe tomorrow I'll either "see the light" or have some intelligent questions.

Value (If it's not Value, it's something similar, not at my dev machine at the moment, so pardon me - can't test :) ).

I've put in over 8 hours just trying to validate a stupid cell on a Data Grid View. :) :) Thanks for your help, I'll happily give you the points.


  1. I have a datagridview. If a cell doesn't satisfy some conditions in CellValidating event, I want the cell's value to be changed to the old value when I

  2. Implementing Virtual Mode with Just-In-Time Data Loading in the Windows Forms DataGridView. If you are working with a. could not be established.

  3. C# windows DataGridView sorting event troubles. but the Sorted event is not triggered. DataGridView CellValidating event unexplained functionality;

  4. Cell validating event problem. Visual Basic. In a datagridview. I can both see in the UI that the value did not change before the cellvalidating event is.

  5. It's probably worth noting that I do not allow the user to create new rows.

  6. I have tried the below code on datagridView Cellvalidation event but its not working. how. Validate Datagridview Using The Cellvalidating. in datagridview.

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