how to bind data on grid from different scheme

DataTable dt = new DataTable();
            dt = objLoanEntryBL.fnSchemedisplay(vScheme);
            dataGridView1.DataSource = dt;
            dataGridView1.DataBindings();
            dataGridView1.Columns[0].Width = 100;
            dataGridView1.Columns[1].Width = 300;
            dataGridView1.Columns[2].Width = 220;
            dataGridView1.Columns[3].Width = 195;