/// <summary>
/// 方法编号：06 /// 方法名称：CombineRepeatedCell /// 内容摘要：文字相同的列的合并 /// 算法思路：将相同的连续单元格想象成“块”,将"块"放置在数据容器中，全部遍历相加需合并的单元格的rowspan,来进行合并隐藏的动作 /// </summary>
/// <param name="m_arrIndex">需要合并的列的index数据</param>
public void CombineRepeatedCell(DataGrid m_grid,int[] m_arrIndex) { foreach (int m_colIndex in m_arrIndex) //列
{
ArrayList m_hidCells = new ArrayList(); //得到需合并的item for (int i = 0; i < m_grid.Items.Count; i++) { //第一行不用比较,并终止比较于最后一行 if (i == 0 || i == (m_grid.PageSize * m_grid.CurrentPageIndex)) { m_hidCells.Add(m_grid.Items[i].Cells[m_colIndex]); continue;
} //文字相同时 if (string.Compare(m_grid.Items[i].Cells[m_colIndex].Text,m_grid.Items[i - 1].Cells[m_colIndex].Text) == 0) { m_hidCells.Add(m_grid.Items[i].Cells[m_colIndex]); } //文字不同，或文字相同但已到最后一行 if (m_grid.Items[i].Cells[m_colIndex].Text != m_grid.Items[i - 1].Cells[m_colIndex].Text || i == m_grid.Items.Count - 1) { //一旦发现有不同的文字，即表示单元格块的结束 if (m_hidCells.Count <= 0) //无需合并 { return; } int m_iRowspan = 0; //待合并的单元格的Rowspan foreach (TableCell c in m_hidCells) { m_iRowspan += (c.RowSpan > 0) ? c.RowSpan : 1; } for (int ii = 1; ii <= m_hidCells.Count - 1; ii++) { ((TableCell)m_hidCells[ii]).Visible = false; } ((TableCell)m_hidCells[0]).RowSpan = m_iRowspan; //开始制作新的容器 m_hidCells = new ArrayList(); m_hidCells.Add(m_grid.Items[i].Cells[m_colIndex]); continue; }//for 结束 }//foreach 结束 }//foreach (int i in m_arrIndex) 结束 }//CombineRepeatedCell 结束 /// <summary> /// 方法编号：03 /// 方法名称：HideRepeatedCell /// 内容摘要：文字相同的列的隐藏 /// 算法思路：不能在循环ITEM的时候进行合并或隐藏，以免比较出现错误 /// 只能暂先放置在容器中，全部遍历方进行合并隐藏的动作 /// </summary> /// <param name="m_grid"></param> /// <param name="m_arrIndex">需要隐藏的列的index数据</param> public void HideRepeatedCell(DataGrid m_grid,int[] m_arrIndex) { if (m_arrIndex.Length <= 0)//检查特异情况 { return; } //处理重复时隐藏 ArrayList m_hidCells = new ArrayList(); //得到需隐藏的item foreach (DataGridItem item in m_grid.Items) { if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem) { //如果为第一行，且跳过 if (item.ItemIndex == 0 || item.ItemIndex == (m_grid.PageSize * m_grid.CurrentPageIndex)) { continue; } foreach (int m_colIndex in m_arrIndex) { if (item.Cells[m_colIndex].Text == m_grid.Items[item.ItemIndex - 1].Cells[m_colIndex].Text) { m_hidCells.Add(item.Cells[m_colIndex]); } else { break; } } }//if (item.ItemType == ListItemType.Item
结束 }//foreach (DataGridItem item in m_grid.Items) 结束 //开始隐藏 foreach (object obj in m_hidCells) { ((TableCell)obj).Text = string.Empty; } }//HideRepeatedCell 结束