/**//// <summary>
/// 方法编号：05 /// 方法名称：SetMultiLayerHeader /// 内容摘要：创建DataGrid多层表头 /// 算法思路：建立一个ArrayList(1)来放置表征表头的ArrayList(2),通过这种结构来自动生成多层表头 /// 数组2的格式要求为："内容，[rowspan/colspan]，[colspan/colspan的值]，[样式哈希表]"(带[]的可选) /// 其中[样式哈希表]的为：key/value的对应关系,如Hashtable_style.Add("Font-size","12pt");
/// </summary>
public void SetMultiLayerHeader(DataGrid m_grid, System.Web.UI.WebControls.DataGridItemEventArgs e, ArrayList m_headers) 
{ e.Item.Visible = false; //处理特殊情况 if (m_grid.Controls.Count <= 0)
{ return;
} Table m_tb = (Table)m_grid.Controls[0]; int m_iTmp = 0; 处理多行表头的实体#region 处理多行表头的实体 foreach (object obj in m_headers) { DataGridItem m_dg = new DataGridItem(0,0,ListItemType.Header); ArrayList m_arrHeader = (ArrayList)obj; TableCell[] m_cells = new TableCell[m_arrHeader.Count]; for (int i=0; i< m_cells.Length; i++) { m_cells[i] = new TableCell(); object[] m_arr = (object[])m_arrHeader[i]; m_cells[i].Text = m_arr.GetValue(0).ToString(); //赋header文字 if (m_arr.Length > 1) //如果有行列属性 { if (m_arr.GetValue(1).ToString().ToLower() == "rowspan")//如果有rowspan属性 { m_cells[i].RowSpan = Convert.ToInt32(m_arr.GetValue(2)); } else if (m_arr.GetValue(1).ToString().ToLower() == "colspan")//如果有colspan属性 { m_cells[i].ColumnSpan = Convert.ToInt32(m_arr.GetValue(2)); } //处理单元格的样式 if (m_arr.Length >= 4) { if (m_arr.GetValue(3) != null) { Hashtable m_hsStyles = (Hashtable)m_arr.GetValue(3); if (m_hsStyles.Count > 0) { System.Collections.IDictionaryEnumerator m_style = m_hsStyles.GetEnumerator(); for (int j = 0; j < m_hsStyles.Count; j++) { m_style.MoveNext(); m_cells[i].Style.Add(m_style.Key.ToString(),m_style.Value.ToString()); } } } }//if (m_arr.Length > 4) 结束 }//if (m_arr.Length > 1) //如果有行列属性 结束 }// for (int i=0; i< m_cells.Length; i++) 结束 //将cell加入DataGridItem foreach (TableCell c in m_cells) { m_dg.Cells.Add(c); } //将DataGridItem加入DataGrid if (m_grid.AllowPaging == true || m_grid.AllowCustomPaging == true)//如果有分页 { m_tb.Rows.AddAt(m_iTmp + 1,m_dg); } else //如果没有分页(处理导出excel时） { m_tb.Rows.AddAt(m_iTmp,m_dg); } m_iTmp++; }//foreach (object obj in m_headers) 结束 #endregion 处理多行表头的实体 }使用方法：
ArrayList m_headers = new ArrayList(); ArrayList m_arrHeader1 = new ArrayList(); m_arrHeader1.Add(new object[]{"事业部","rowspan","2"}); m_arrHeader1.Add(new object[]{"办事处","rowspan","2"}); m_arrHeader1.Add(new object[]{"每月合同培训完成名额数","colspan","12"}); m_arrHeader1.Add(new object[]{"合计","rowspan","2"}); m_arrHeader1.Add(new object[]{"积压<br>名额数","rowspan","2"}); ArrayList m_arrHeader2 = new ArrayList(); for (int i=0; i<12; i++) { m_arrHeader2.Add(new object[]{(i+1).ToString() + "月"}); } m_headers.Add(m_arrHeader1); m_headers.Add(m_arrHeader2); this.m_BLL.SetMultiLayerHeader(this.dgrSalesList,e,m_headers);
