GridView中生成复合表头
1.添加类文件
//----------------------------------------------------------------------------------- // // Description: 动态生成复合表头帮助类 // 相邻父列头之间用'#'分隔,父列头与子列头用空格(' ')分隔,相邻子列头用逗号分隔(','). // 两行：序号#分公司#组别#本日成功签约单数 预警,续约,流失,合计#累计成功签约单数 预警,续约,流失,合计#任务数#完成比例#排名 // 三行：等级#级别#上期结存 件数,重量,比例#本期调入 收购调入 件数,重量,比例#本期发出 车间投料 件数,重量,比例#本期发出 产品外销百分比 件数,重量,比例#平均值 // 三行时请注意：列头要重复 // //----------------------------------------------------------------------------------- using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Collections.Generic; using System.Collections; public class GridViewHeaderHepler { public GridViewHeaderHepler() { // // TODO: Add constructor logic here // } /**/ /// <summary> /// 重写表头 /// </summary> /// <param name="targetHeader">目标表头</param> /// <param name="newHeaderNames">新表头</param> /// <remarks> /// </remarks> public void SplitTableHeader(GridViewRow targetHeader, string newHeaderNames) { TableCellCollection tcl = targetHeader.Cells; //获得表头元素的实例 string strCss = targetHeader.CssClass; tcl.Clear(); //清除元素 int row = GetRowCount(newHeaderNames); int col = GetColCount(newHeaderNames); string[,] nameList = ConvertList(newHeaderNames, row, col); int RowSpan = 0; int ColSpan = 0; for (int k = 0; k < row; k++) { string LastFName = ""; for (int i = 0; i < col; i++) { if (LastFName == nameList[i, k] && k != row - 1) { LastFName = nameList[i, k]; continue; } else { LastFName = nameList[i, k]; } int bFlag = IsVisible(nameList, k, i, LastFName); switch (bFlag) { case 0: break; case 1: RowSpan = GetSpanRowCount(nameList, row, k, i); ColSpan = GetSpanColCount(nameList, row, col, k, i); tcl.Add(new TableHeaderCell()); //添加表头控件 tcl[tcl.Count - 1].RowSpan = RowSpan; tcl[tcl.Count - 1].ColumnSpan = ColSpan; tcl[tcl.Count - 1].HorizontalAlign = HorizontalAlign.Center; tcl[tcl.Count - 1].Text = LastFName; break; case -1: string[] EndColName = LastFName.Split(new char[] { ',' }); foreach (string eName in EndColName) { tcl.Add(new TableHeaderCell()); //添加表头控件 tcl[tcl.Count - 1].HorizontalAlign = HorizontalAlign.Center; tcl[tcl.Count - 1].Text = eName; tcl[tcl.Count - 1].CssClass = targetHeader.CssClass; } break; } } if (k != row - 1) { //不是起始行,加入新行标签 tcl[tcl.Count - 1].Text = tcl[tcl.Count - 1].Text + "</th></tr><tr>"; } } } /**/ /// <summary> /// 如果上一行已经输出和当前内容相同的列头，则不显示 /// </summary> /// <param name="ColumnList">表头集合</param> /// <param name="rowIndex">行索引</param> /// <param name="colIndex">列索引</param> /// <returns>1:显示,-1:含','分隔符,0:不显示</returns> private int IsVisible(string[,] ColumnList, int rowIndex, int colIndex, string CurrName) { if (rowIndex != 0) { if (ColumnList[colIndex, rowIndex - 1] == CurrName) { return 0; } else { if (ColumnList[colIndex, rowIndex].Contains(",")) { return -1; } else { return 1; } } } return 1; } /**/ /// <summary> /// 取得和当前索引行及列对应的下级的内容所跨的行数 /// </summary> /// <param name="ColumnList">表头集合</param> /// <param name="row">行数</param> /// <param name="rowIndex">行索引</param> /// <param name="colIndex">列索引</param> /// <returns>行数</returns> private int GetSpanRowCount(string[,] ColumnList, int row, int rowIndex, int colIndex) { string LastName = ""; int RowSpan = 1; for (int k = rowIndex; k < row; k++) { if (ColumnList[colIndex, k] == LastName) { RowSpan++; } else { LastName = ColumnList[colIndex, k]; } } return RowSpan; } /**/ /// <summary> /// 取得和当前索引行及列对应的下级的内容所跨的列数 /// </summary> /// <param name="ColumnList">表头集合</param> /// <param name="row">行数</param> /// <param name="col">列数</param> /// <param name="rowIndex">行索引</param> /// <param name="colIndex">列索引</param> /// <returns>列数</returns> private int GetSpanColCount(string[,] ColumnList, int row, int col, int rowIndex, int colIndex) { string LastName = ColumnList[colIndex, rowIndex]; int ColSpan = ColumnList[colIndex, row - 1].Split(new char[] { ',' }).Length; ColSpan = ColSpan == 1 ? 0 : ColSpan; for (int i = colIndex + 1; i < col; i++) { if (ColumnList[i, rowIndex] == LastName) { ColSpan += ColumnList[i, row - 1].Split(new char[] { ',' }).Length; } else { LastName = ColumnList[i, rowIndex]; break; } } return ColSpan; } /**/ /// <summary> /// 将已定义的表头保存到数组 /// </summary> /// <param name="newHeaders">新表头</param> /// <param name="row">行数</param> /// <param name="col">列数</param> /// <returns>表头数组</returns> private string[,] ConvertList(string newHeaders, int row, int col) { string[] ColumnNames = newHeaders.Split(new char[] { '#' }); string[,] news = new string[col, row]; string Name = ""; for (int i = 0; i < col; i++) { string[] CurrColNames = ColumnNames[i].ToString().Split(new char[] { ' ' }); for (int k = 0; k < row; k++) { if (CurrColNames.Length - 1 >= k) { if (CurrColNames[k].Contains(",")) { if (CurrColNames.Length != row) { if (Name == "") { news[i, k] = news[i, k - 1]; Name = CurrColNames[k].ToString(); } else { news[i, k + 1] = Name; Name = ""; } } else { news[i, k] = CurrColNames[k].ToString(); } } else { news[i, k] = CurrColNames[k].ToString(); } } else { if (Name == "") { news[i, k] = news[i, k - 1]; } else { news[i, k] = Name; Name = ""; } } } } return news; } /**/ /// <summary> /// 取得复合表头的行数 /// </summary> /// <param name="newHeaders">新表头</param> /// <returns>行数</returns> private int GetRowCount(string newHeaders) { string[] ColumnNames = newHeaders.Split(new char[] { '#' }); int Count = 0; foreach (string name in ColumnNames) { int TempCount = name.Split(new char[] { ' ' }).Length; if (TempCount > Count) Count = TempCount; } return Count; } /**/ /// <summary> /// 取得复合表头的列数 /// </summary> /// <param name="newHeaders">新表头</param> /// <returns>列数</returns> private int GetColCount(string newHeaders) { return newHeaders.Split(new char[] { '#' }).Length; } }
2.在OnRowCreated事件添加如下代码。
protected void gvO_RowCreated(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.Header) { GridViewHeaderHepler dHelper = new GridViewHeaderHepler(); string header = "所属分公司#工程编号#工程名称#甲方名称#合同信息 合同,NOS,合计#收款信息 合同,变更,合计#可开票信息 设备费,安装费,运输费,合计#已开票信息 设备费,安装费,运输费,合计#尚可开票信息 设备费,安装费,运输费,合计"; e.Row.CssClass = gvO.HeaderStyle.CssClass; dHelper.SplitTableHeader(e.Row, header); } }
3.效果图：
