public static void LoadProductData(DevExpress.XtraGrid.Views.Grid.GridView gridview, DevExpress.XtraGrid.GridControl grid, DataSet ds, string path) { path += @"\Product.xml"; ds.ReadXml(path); gridview.ExpandMasterRow(0); for (int i = 0; i < gridview.RowCount; i++) { gridview.ExpandMasterRow(i); } }