Datagridview validating event

Also this approach allows the user more flexibility.

Lets say the user its not required to enter data in all the rows of the datagridview, the latter approach would work just fine.

How to efectively validate data entry inside a Data Grid View. Late Validation: This validation is performed after the user is done entering data.

Well, after doing some research and a bit of trial and error, found out a couple of approaches. For the specific project i was working in, it was the perfect choice.

To implement the second requirement, you must handle the Default Values Needed event.

This event is raised prior to deleting a row from the grid.

You can cancel the delete operation if some validation fails.

For example, even if the Customer ID column is the primary key column, you are able to change its values.

Similarly, there is no check on the new values being entered in other columns.

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Canceling this event cancels the changes to the ... Nov 17, 2005 Text Box Validating event firing twice. Walkthrough: Validating Data in the Windows Forms Data Grid View Control. The Validate Children method will raise the validating events for all child controls in the container and this is known as ...

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