C dgv cell validating

To get you started creating your own column types for the Data Grid View control, this article walks you through creating the bar graph cell type.

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Finally, save the project and run the form to verify that you see the raw data in your Data Grid View control.In one of the columns, we display a simple little bar graph corresponding to a value from a table.We create the bar by displaying a solid bitmap, setting the width to be the value from the field.You start by creating a class that inherits from the Data Grid View Cell class (or some class that itself inherits from the Data Grid View Cell class).In your class, you can override any of the many protected members of the base class.

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