Vb net datagridview cellvalidating change value
It’s important to note that this event will get called twice, once on changing the state of the cell to dirty (before committing changes) and once when changing the cell state back to ‘clean’ (after the changes have been committed).
For this reason, before preforming any action, it checks to see when the current cell is dirty or not. The form loads by default to only handle the Cell Value Changed event itself, which means we will immediately notice the problem at hand.
We would not want the Cell Value Changed event firing every single time a letter was added to a person’s last name.
Still, it doesn’t make much sense when we think about the way Check Box’s work, in that, they can only ever be On or Off, and that once you have made your selection, you’re probably pretty confident that you want to change the value.
Private Sub Datagrid1_Cell Validating(By Val sender As Object, By Val e As System.