合并相同项的单元格

 private void CellJoin(int col, int mark)
    ...{
        String celltext;//要合并的单元格
        String cellMarktext;//第二个单元格参照
        int i = 0;
        int j = 0;
        int k = col;

        celltext = grid.Items[0].Cells[col].Text;//要合并的单元格
        cellMarktext = grid.Items[0].Cells[mark].Text;//第二个单元格参照
        for (j = 1; j <= grid.Items.Count - 1; j++)
        ...{
            if (mark == 1)
            ...{
                if (grid.Items[j].Cells[col].Text == celltext)
                ...{
                    grid.Items[j].Cells[col].Visible = false;//.RemoveAt(k);//隐藏单元格
                    grid.Items[i].Cells[col].RowSpan = j - i + 1;
                }
                else
                ...{
                    celltext = grid.Items[j].Cells[col].Text;
                    i = j;
                }
            }
            else
            ...{
                if (grid.Items[j].Cells[col].Text == celltext && grid.Items[j].Cells[mark].Text == cellMarktext)
                ...{
                    grid.Items[j].Cells[col].Visible = false;//.RemoveAt(k);//隐藏单元格
                    grid.Items[i].Cells[col].RowSpan = j - i + 1;
                }
                else
                ...{
                    celltext = grid.Items[j].Cells[col].Text;
                    cellMarktext = grid.Items[j].Cells[mark].Text;//第二个单元格参照
                    i = j;
                }
            }
        }
    }




private void CellJoin(int col,int mark,int flag)
    ...{
        String celltext;//要合并的单元格
        String cellMarktext;//第一个单元格参照
        String cellflagtext;//第二个单元格参照
        int i = 0;
        int j = 0;
        int k = col;

        celltext = grid.Items[0].Cells[col].Text;//要合并的单元格
        cellMarktext = grid.Items[0].Cells[mark].Text;//第一个单元格参照
        cellflagtext = grid.Items[0].Cells[flag].Text;//第二个单元格参照
        for (j = 1; j <= grid.Items.Count - 1; j++)
        ...{
            if (mark == 1 && flag==1)
            ...{
                if (grid.Items[j].Cells[col].Text == celltext)
                ...{
                    grid.Items[j].Cells[col].Visible = false;//.RemoveAt(k);//隐藏单元格
                    grid.Items[i].Cells[col].RowSpan = j - i + 1;
                }
                else
                ...{
                    celltext = grid.Items[j].Cells[col].Text;
                    i = j;
                }
            }
            else
            ...{
                if (grid.Items[j].Cells[col].Text == celltext && grid.Items[j].Cells[mark].Text == cellMarktext && grid.Items[j].Cells[flag].Text == cellflagtext)
                ...{
                    grid.Items[j].Cells[col].Visible = false;//.RemoveAt(k);//隐藏单元格
                    grid.Items[i].Cells[col].RowSpan = j - i + 1;
                }
                else
                ...{
                    celltext = grid.Items[j].Cells[col].Text;
                    cellMarktext = grid.Items[j].Cells[mark].Text;//第一个单元格参照
                    cellflagtext = grid.Items[j].Cells[flag].Text;//第二个单元格参照
                    i = j;
                }
            }
        }
    }