Cellvalidating event in gridview

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There are times when you need to allow the users to insert additional items into the Combo Box control. First, service the Editing Control Showing event of the Data Grid View control. _ Data Grid View Editing Control Showing Event Args) _ Handles Data Grid View1.

Adding Items into a Data Grid View Combo Box Column Control The previous section showed how to display a Combo Box control within a cell in the Data Grid View control. This event is fired when the user is done with the typing and leaves the cell: Private Sub Data Grid View1_Cell Validating( _ By Val sender As Object, _ By Val e As System. Cell Validating Dim combo Box Column As Data Grid View Combo Box Column = _ Data Grid View1.

Formatted Value) End If End If End Sub Here, you will perform the usual checks and then add the newly typed item into the Combo Box. Note that for subsequent rows (as well as the rows above it) the Combo Box control will now contain four items. Cancel = True End If End If End Sub In this event, you will perform the necessary validation.

Further, let’s say that you’d like to know as soon as the user has made a change to their selection.

The following code snippet adds a Combo Box control to the fifth column of the Data Grid View control: '---add columns to the Data Grid View control--- Data Grid View1.

cellvalidating event in gridview-46cellvalidating event in gridview-21cellvalidating event in gridview-63

Header Text = "Types" '---add items to it--- combo Box Col. Add("Price", "Price") '---add a combobox column--- Dim combo Box Col As New Data Grid View Combo Box Column '---set the header text--- combo Box Col. 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. There seems to be a non-zero percent chance that this might fire incorrectly in some unforeseen situation.I’d rather code to do exactly what it says it’s doing. This has the added bonus of not firing when you have clicked outside of the checkbox area, but still falls perhaps under the same category of not being entirely clear to someone unfamiliar with this issue why this particular event should force the grid to exit edit mode.

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