datagrid checkbox column vb6

With this code, clicking the Check All button causes a postback and checks all of the checkboxes in the GridView. Provide an answer or move on to the next question. This topic is old! How to add column header of datagrid by checkbox in WPF using C 4. Dear vb5prgrmr, I've tried with ListView but it shows only 1 column if checkbox is displayed.

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