C datagridview cellvalidating event
Load ' Initialize the Binding Source and bind the Data Grid View to it. Data Source = Get Data("select * from Customers") Grid View1. Auto Resize Columns( _ Data Grid View Auto Size Columns Mode.
Cancel = True End If End Sub Private Sub data Grid View1_Cell End Edit(By Val sender As Object, _ By Val e As System. Cell End Edit ' Clear the row error in case the user presses ESC. For more information, see Protecting Connection Information.
For example, this event triggers everytimes the users switches to another row.
Form Private With Events data Grid View1 As New Data Grid View() Private binding Source1 As New Binding Source() Public Sub New() ' Initialize the form.
In general, it is better to use the Cell Parsing event whenever you need to convert/change the value in a cell.
From within that event, you can indicate that the user's value is invalid by setting the Error Text value of the cell or row.
Thanks, Depends on what design pattern (if any) you are following.
Technically speaking you should remove your business logic away from your UI layer and have some sort of Validation Object to validate the data in your presentation layer and then post back the results to your view.