发一个使用 GridView 对数据小类进行分别汇总的例子

来源：互联网发布：魔客吧js破解编辑：程序博客网时间：2024/06/05 18:02
完全的源代码如下
<%@ Page Language="C#" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">  protected void Page_Load(object sender, EventArgs e)  {    System.Data.DataTable dataTable1 = new System.Data.DataTable("BlogUser");    System.Data.DataRow dr;    dataTable1.Columns.Add(new System.Data.DataColumn("Type", typeof(System.String)));    dataTable1.Columns.Add(new System.Data.DataColumn("Count1", typeof(System.Int32)));    dataTable1.Columns.Add(new System.Data.DataColumn("Count2", typeof(System.Int32)));    Random r = new Random();    for (int i = 0; i < 8; i++)    {      dr = dataTable1.NewRow();      if (i < 8) dr[0] = "C";      if (i < 6) dr[0] = "B";      if (i < 3) dr[0] = "A";      dr[1] = r.Next(0, 100);      dr[2] = r.Next(0, 100);      dataTable1.Rows.Add(dr);    }    System.Data.DataView dv = dataTable1.DefaultView;    System.Data.DataTable dataTable2 = dv.ToTable(true, "Type");    System.Data.DataTable dataTable3 = dataTable1.Clone();    int totalCount1 = 0, totalCount2 = 0;    for (int i = 0; i < dataTable2.Rows.Count; i++)    {      String type = dataTable2.Rows[i][0].ToString();      System.Data.DataRow[] rs = dataTable1.Select("Type='" + type + "'");      int count1 = 0, count2 = 0;      for (int j = 0; j < rs.Length; j++)      {        count1 += Convert.ToInt32(rs[j]["Count1"]);        count2 += Convert.ToInt32(rs[j]["Count2"]);        dataTable3.ImportRow(rs[j]);      }      dr = dataTable3.NewRow();      dr[0] = "合计";      dr[1] = count1;      dr[2] = count2;      totalCount1 += count1;      totalCount2 += count2;      dataTable3.Rows.Add(dr);    }    dr = dataTable3.NewRow();    dr[0] = "总合计";    dr[1] = totalCount1;    dr[2] = totalCount2;    dataTable3.Rows.Add(dr);    this.GridView1.DataSource = dataTable3;    this.GridView1.DataBind();  }  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)  {    if (e.Row.Cells[0].Text.Trim().Equals("合计"))    {      e.Row.Style.Add("color", "#d00");    }    else if (e.Row.Cells[0].Text.Trim().Equals("总合计"))    {      e.Row.Style.Add("color", "#00d");      e.Row.Style.Add("background", "#f33");    }  }</script><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server">  <title></title></head><body>  <form id="form1" runat="server">  <asp:GridView ID="GridView1" runat="server" OnRowDataBound="GridView1_RowDataBound">  </asp:GridView>  </form></body></html>
运行效果