• asp.net GridView实现多表头类 多行表头实现方法


    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:   

           protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
            {
                  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);
                 }

        }

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  • 原文地址:https://www.cnblogs.com/hfzsjz/p/3193590.html
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