使用时在GridView的RowCreated事件中加入下面代码调用
if (e.Row.RowType == DataControlRowType.Header)
{
DynamicTHeaderHepler dHelper =new DynamicTHeaderHepler();
string header ="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";
dHelper.SplitTableHeader(e.Row, header);
}
类文件如下：
// 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(',').
//***********************************************************************
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 DynamicTHeaderHepler
{
public DynamicTHeaderHepler()
{
// // 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>
/// 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
/// </remarks>
public void SplitTableHeader(GridViewRow targetHeader, string newHeaderNames)
{
TableCellCollection tcl = targetHeader.Cells;//获得表头元素的实例
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; } 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; } }