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Datagridviewcheckboxcolumn cellvalidating

Any solution is going to involve using an event that definitely will fire to stop the Data Grid View from thinking it’s in edit mode.

For example, the user could select multiple cells and then right-click a selected cell to display a shortcut menu that displays a set of tasks to perform on the selected cells.

When you click a Check Box in a Data Grid View Check Box Column, the check marker will update immediately, but Cell Value Changed event on the Data Grid View will not fire until the user happens to click elsewhere and the cell has lost focus. Well, the Data Grid View thinks it’s a little preemptive to go declaring that the cell value has changed while you are still selected on it.

This makes more sense when we think about a Text Box column.

I have tried the below code on datagrid View Cellvalidation event but its not working.

I want that whenever user presses anyother key than a number key(ex:1,2,3,4....)than immediately i should get a messagebox that only numbers allowed.

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