gridview in gridview

Question

hai

how can we use gridview in gridview...
for single gridview we will write like these

protected void gridview1_RowEditing(object sender, GridViewEditEventArgs e)

    {

        gridview1.EditIndex = e.NewEditIndex;

        gridview1bind();

    }

then how can we write gridview in gridview

protected void gridview2_RowEditing(object sender, GridViewEditEventArgs e)

    {

     

what will be the code here

    }