Vb net gridview cellvalidating
You can use Row Validating event to validate new rows.
Here is a sample: Here, we access new row cell values by using the Data Row Info property, which contains the row that is being added.
Normally, the Error Text will be cleared after the user corrects the value.
It not only supports data binding but also provides frequently needed column types, such as combo box and button.
The Data Grid View event model is really extensive and one can take control of validation and entry by using many of these events.
However, you can use Cell Validating or Current Cell Changed events to update its value.
Please, don't hesitate to write me if you have further questions.
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In your example, you use the Cell Validating event, as shown below: Here, you want to ensure that the length of the new Customer ID is at least five characters.