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The Kettic Data Grid View allows users of the control easily validate data grid cells when data is committed to the data source.
To validate data to grid cells and rows, we need to use the Validate Cell event, which will be raised by the Kettic Data Grid View when there are any changes to the current cell or when the grid cell loses input focus like.
For more information about how to handle events, see Handling and Raising Events.
Error Text = "Invalid format" songs Data Grid View. If the row does not pass validation, set the Cancel Event Args. Canceling this event prevents the Row Validated, Control. Validated events from occurring, and also prevents the user from leaving the invalid row and prevents the row from being saved to an external data source in data bound mode.
I can’t seem to get my Validate The Entry() function to return a 0 if the entry is either “” or NULL or string. I only need to validate certain columns in the datagrid, I don’t need to validate the EAN or the description for instance and yet the column index don’t seem to be logical?
Error Text = _ "Zero is not a valid track" Return False Else If Not Integer.
Error Text = "A Track must be a number" songs Data Grid View.
Before we validate data to grid cell, we need to cancel the Validate Cell event to prevent the users from exiting the cell until entering a valid editor value or cancelling the edit process.
Meanwhile, we can use the Validate Row event in the same way to prevent the user from exiting the current row.