Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

Question

When i am click on update button i got this error my update click event

protected void btnUpdate_Click(object sender, CommandEventArgs e)
{
    int idx = Conve         


        

Answer 1

No need to use e.CommandArgument to find the GridViewRow. Just do this

GridViewRow gr = ((Button)sender).NamingContainer as GridViewRow;