在GRIDVIEW中合并单元格
/// 合并GridView列中相同的行
/// </summary>
/// <param name="GridView1">GridView对象</param>
/// <param name="cellNum">需要合并的列</param>
public static void GroupRows(GridView GridView1, int cellNum)
{
int i = 0, rowSpanNum = 1;
while (i < GridView1.Rows.Count - 1)
{
GridViewRow gvr = GridView1.Rows[i];
for (++i; i < GridView1.Rows.Count; i++)
{
GridViewRow gvrNext = GridView1.Rows[i];
if (gvr.Cells[cellNum].Text == gvrNext.Cells[cellNum].Text)
{
gvrNext.Cells[cellNum].Visible = false;
rowSpanNum++;
}
else
{
gvr.Cells[cellNum].RowSpan = rowSpanNum;
rowSpanNum = 1;
break;
}
if (i == GridView1.Rows.Count - 1)
{
gvr.Cells[cellNum].RowSpan = rowSpanNum;
}
}
}
}
/// <summary>
/// 根据条件列合并GridView列中相同的行
/// </summary>
/// <param name="GridView1">GridView对象</param>
/// <param name="cellNum">需要合并的列</param>
/// /// <param name="cellNum2">条件列(根据某条件列还合并)</param>
public static void GroupRows(GridView GridView1, int cellNum, int cellNum2)
{
int i = 0, rowSpanNum = 1;
while (i < GridView1.Rows.Count - 1)
{
GridViewRow gvr = GridView1.Rows[i];
for (++i; i < GridView1.Rows.Count; i++)
{
GridViewRow gvrNext = GridView1.Rows[i];
if (gvr.Cells[cellNum].Text + gvr.Cells[cellNum2].Text == gvrNext.Cells[cellNum].Text + gvrNext.Cells[cellNum2].Text)
{
gvrNext.Cells[cellNum].Visible = false;
rowSpanNum++;
}
else
{
gvr.Cells[cellNum].RowSpan = rowSpanNum;
rowSpanNum = 1;
break;
}
if (i == GridView1.Rows.Count - 1)
{
gvr.Cells[cellNum].RowSpan = rowSpanNum;
}
}
}
}
第二个方法只是在第一个方法的修改了一点点, 在判断单元格的时候，加上了一个条件列：
if (gvr.Cells[cellNum].Text + gvr.Cells[cellNum2].Text == gvrNext.Cells[cellNum].Text + gvrNext.Cells[cellNum2].Text)。当然，第二个方法还可以扩展，根据多个列的条件来合并。
------------------------
例程:
数据库(Sql2005)
USE [dbgang]
GO
/****** 对象: Table [dbo].[tbJiLu] 脚本日期: 08/13/2008 23:46:54 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[tbJiLu](
[intID] [int] IDENTITY(1,1) NOT NULL,
[A] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL,
[B] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL,
[C] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL,
[D] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL,
[E] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL,
[F] [varchar](50) COLLATE Chinese_PRC_CI_AS NULL,
CONSTRAINT [PK_tbJiLu] PRIMARY KEY CLUSTERED
(
[intID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
前台代码:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:BoundField DataField="A" HeaderText="粮食属性" />
<asp:BoundField DataField="B" HeaderText="品种" />
<asp:BoundField DataField="C" HeaderText="货位号" />
<asp:BoundField DataField="D" HeaderText="收购计划数量" />
<asp:BoundField DataField="E" HeaderText="已规划数量" />
<asp:BoundField DataField="F" HeaderText="未规划数量" />
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
后台代码:
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.Data.Common;
using Microsoft.Practices.EnterpriseLibrary.Data;
using Microsoft.Practices.ObjectBuilder;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
Database db=DatabaseFactory.CreateDatabase();
DbCommand cmd= db.GetSqlStringCommand("SELECT * FROM tbJiLu");
using (IDataReader dr=db.ExecuteReader(cmd))
{
IList<MeiShi.tbJiLuInfo> list = MeiShi.FillDataToList<MeiShi.tbJiLuInfo>.FillDataList(dr);
GridView1.DataSource = list;
GridView1.DataBind();
}
GroupRows(this.GridView1, 0);
GroupRows(this.GridView1, 1);
}
}
// <summary>
/// 合并GridView列中相同的行
/// </summary>
/// <param name="GridView1">GridView对象</param>
/// <param name="cellNum">需要合并的列</param>
public static void GroupRows(GridView GridView1, int cellNum)
{
int i = 0, rowSpanNum = 1;
while (i < GridView1.Rows.Count - 1)
{
GridViewRow gvr = GridView1.Rows[i];
for (++i; i < GridView1.Rows.Count; i++)
{
GridViewRow gvrNext = GridView1.Rows[i];
if (gvr.Cells[cellNum].Text == gvrNext.Cells[cellNum].Text)
{
gvrNext.Cells[cellNum].Visible = false;
rowSpanNum++;
}
else
{
gvr.Cells[cellNum].RowSpan = rowSpanNum;
rowSpanNum = 1;
break;
}
if (i == GridView1.Rows.Count - 1)
{
gvr.Cells[cellNum].RowSpan = rowSpanNum;
}
}
}
}
/// <summary>
/// 根据条件列合并GridView列中相同的行
/// </summary>
/// <param name="GridView1">GridView对象</param>
/// <param name="cellNum">需要合并的列</param>
/// /// <param name="cellNum2">条件列(根据某条件列还合并)</param>
public static void GroupRows(GridView GridView1, int cellNum, int cellNum2)
{
int i = 0, rowSpanNum = 1;
while (i < GridView1.Rows.Count - 1)
{
GridViewRow gvr = GridView1.Rows[i];
for (++i; i < GridView1.Rows.Count; i++)
{
GridViewRow gvrNext = GridView1.Rows[i];
if (gvr.Cells[cellNum].Text + gvr.Cells[cellNum2].Text == gvrNext.Cells[cellNum].Text + gvrNext.Cells[cellNum2].Text)
{
gvrNext.Cells[cellNum].Visible = false;
rowSpanNum++;
}
else
{
gvr.Cells[cellNum].RowSpan = rowSpanNum;
rowSpanNum = 1;
break;
}
if (i == GridView1.Rows.Count - 1)
{
gvr.Cells[cellNum].RowSpan = rowSpanNum;
}
}
}
}
}
