Cell Validating Dim header Text As String = _ data Grid View1. Text = "Data Grid View validation demo (disallows empty Company Name)" End Sub Private Sub Form1_Load(By Val sender As System. All Cells Except Header) End Sub Private Sub data Grid View1_Cell Validating(By Val sender As Object, _ By Val e As Data Grid View Cell Validating Event Args) _ Handles data Grid View1. Header Text ' Abort validation if cell is not in the Company Name column. Equals("Company Name") Then Return ' Confirm that the cell is not empty. For a complete explanation of this code example, see Walkthrough: Validating Data in the Windows Forms Data Grid View Control.
An alternative way would be to add the items to the Data Grid View Combo Box Column control directly, as shown: '---adding columns--- Data Grid View1.
Note that some questions are duplicated in multiple sections based upon the section relevancy.
The question and answers with code samples/snippets are contained in this documents only appendix to make for a one-stop shop of code.
This event is fired when the user tries to edit the Combo Box control: Private Sub Data Grid View1_Editing Control Showing( _ By Val sender As Object, _ By Val e As System.
Editing Control Showing Dim combo Box Column As Data Grid View Combo Box Column = _ Data Grid View1.