Devexpress AspxGridView怎么合并同一行单元格

Devexpress AspxGridView怎么合并同一行单元格，我的是Devexpress15.1.4

你可以写一个方法从第一格到第四格，设置ColumnSpan 的值。

 public static void GridViewGroupRow(GridView gv, int rows, int startCol, int endCol)
    {
        if (gv == null || endCol < startCol || (rows - 1) > gv.Rows.Count)
        {
            return;
        }
        else
        {
            TableCell oldTc = gv.Rows[rows - 1].Cells[startCol-1];
            for (int i = 1; i < endCol - startCol+1; i++)
            {
                TableCell tc = gv.Rows[rows - 1].Cells[i + (startCol-1)];
                tc.Visible = false;
                if (oldTc.ColumnSpan == 0)
                {
                    oldTc.ColumnSpan = 1;
                }
                oldTc.ColumnSpan++;
                oldTc.VerticalAlign = VerticalAlign.Middle;
            }
        }