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ASP.NET Web Forms Show Tooltip In Gridview Column

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Here's how to show tooltip in an asp.net gridview column/cell on mouse hover. This option will set the Tooltip property of a particular gridview cell on RowDataBound event.
C# Code: 
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protected void grdCustomers_RowDataBound(object sender, GridViewRowEventArgs e)
{
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            string str = e.Row.Cells[1].Text;
            e.Row.Cells[1].ToolTip = str;
        }
}

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