gridview合并单元格

记录用，以前写过，忘记了
转自：http://marss.co.ua/MergingCellsInGridView.aspx

public class GridDecorator

{

    public static void MergeRows(GridView gridView)

    {

        for (int rowIndex = gridView.Rows.Count - 2; rowIndex >= 0; rowIndex--)

        {

            GridViewRow row = gridView.Rows[rowIndex];

            GridViewRow previousRow = gridView.Rows[rowIndex + 1];



            for (int i = 0; i < row.Cells.Count; i++)

            {

                if (row.Cells[i].Text == previousRow.Cells[i].Text)

                {

                    row.Cells[i].RowSpan = previousRow.Cells[i].RowSpan < 2 ? 2 : previousRow.Cells[i].RowSpan + 1;

                    previousRow.Cells[i].Visible = false;

                }

            }

        }

    }

}

　　

protected void gridView_PreRender(object sender, EventArgs e)

{

    GridDecorator.MergeRows(gridView);

}