转 --- GridView多表头类 - 通用

以上列表中运用的都是基本的东东：

1.多表头；

2.按值改变行颜色；

3.分页码

代码：

AndyGridViewTHeaderHepler.cs

//-----------------------------------------------------------------------------------
//
// Created: 23:07 2008/9/28    Author: Andy Lu
// File: AndyGridViewTHeaderHepler.cs
// 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;

namespace SQLServerDAL
{
    public class AndyGridViewTHeaderHepler
    {
        public AndyGridViewTHeaderHepler()
        {
            //
            // 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
            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 class="+targetHeader.CssClass+">";
                }
            }
        }
        /**//// <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;
        }
       
    }
}

运用时代码如下：

            if (e.Row.RowType == DataControlRowType.Header)
            {

                SQLServerDAL.AndyGridViewTHeaderHepler dHelper = new SQLServerDAL.AndyGridViewTHeaderHepler();

                string header = "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";

                //---------------------------------------------------------------------------------------
                // 加载 gridview Header 的样式
                //---------------------------------------------------------------------------------------
                e.Row.CssClass = GridView1.HeaderStyle.CssClass;

                dHelper.SplitTableHeader(e.Row, header);

             }