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ASP.NET 2.0中GridView无限层复杂表头的实现

作者：佚名 出处：网络转载 时间：11-28 点击：

内容载入中...
     实现方法就是给单元格填充我们想要的格式代码。
  
  C#
  
  <%@ Page Language="C#" AutoEventWireup="true" %>
  
  <!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  
  <script runat="server">
   // 计算数据，完全可以从数据看取得
   ICollection CreateDataSource( )
   {
   System.Data.DataTable dt = new System.Data.DataTable();
   System.Data.DataRow dr;
   dt.Columns.Add(new System.Data.DataColumn("学生班级", typeof(System.String)));
   dt.Columns.Add(new System.Data.DataColumn("学生姓名", typeof(System.String)));
   dt.Columns.Add(new System.Data.DataColumn("语文", typeof(System.Decimal)));
   dt.Columns.Add(new System.Data.DataColumn("数学", typeof(System.Decimal)));
   dt.Columns.Add(new System.Data.DataColumn("英语", typeof(System.Decimal)));
   dt.Columns.Add(new System.Data.DataColumn("计算机", typeof(System.Decimal)));
  
   for (int i = 0; i < 8; i++)
   {
   System.Random rd = new System.Random(Environment.TickCount * i); ;
   dr = dt.NewRow();
   dr[0] = "班级" + i.ToString();
   dr[1] = "学生" + i.ToString();
   dr[2] = System.Math.Round(rd.NextDouble() * 100, 2);
   dr[3] = System.Math.Round(rd.NextDouble() * 100, 2);
   dr[4] = System.Math.Round(rd.NextDouble() * 100, 2);
   dr[5] = System.Math.Round(rd.NextDouble() * 100, 2);
   dt.Rows.Add(dr);
   }
   System.Data.DataView dv = new System.Data.DataView(dt);
   return dv;
   }
  
   protected void Page_Load( object sender, EventArgs e )
   {
   if (!IsPostBack)
   {
   GridView1.BorderColor = System.Drawing.Color.DarkOrange;
   GridView1.DataSource = CreateDataSource();
   GridView1.DataBind();
   }
   }
  
   protected void GridView1_RowCreated( object sender, GridViewRowEventArgs e )
   {
  
   if (e.Row.RowType == DataControlRowType.Header)
   {
   //创建一个GridViewRow，相当于表格的 TR 一行
   GridViewRow rowHeader = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal);
   string HeaderBackColor = "#EDEDED";
   rowHeader.BackColor = System.Drawing.ColorTranslator.FromHTML(HeaderBackColor);
  
   //实现确定要显示的表头样式，也可以通过计算生成
  
   // <tr>
   // <td rowspan="2">关键单元格</td>
   // <td colspan="2">表头文字</td>
   // <td colspan="2">表头文字</td>
   // <td>表头文字</td>
   // </tr>
   // <tr bgcolor="#FFF">
   // <td colspan="2">表头文字</td>
   // <td rowspan="2">表头文字</td>
   // <td colspan="2">表头文字</td>
   // </tr>
   // <tr bgcolor="#FFF">
   // <td>表头文字</td>
   // <td>表头文字</td>
   // <td>表头文字</td>
   // <td>表头文字</td>
   // <td>表头文字</td>";
   // </tr>
   // 上面的样式可以设置斜线
  
   Literal newCells = new Literal();
   newCells.Text = @"表头文字1</th>
   <th colspan="2">表头文字2</th>
   <th colspan="2">表头文字3</th>
   <th>表头文字4</th>
   </tr>
   <tr bgcolor="" + HeaderBackColor + "">";
   newCells.Text += @"
   <th colspan="2">表头文字5</th>
   <th rowspan="2">表头文字6</th>
   <th colspan="2">表头文字7</th>
   </tr>
   <tr bgcolor="" + HeaderBackColor + "">";
   newCells.Text += @"
   <th>表头文字8</th>
   <th>表头文字9</th>
   <th>表头文字10</th>
   <th>表头文字11</th>
   <th>表头文字12";
  
   TableCellCollection cells = e.Row.Cells;
   TableHeaderCell headerCell = new TableHeaderCell();
   //下面的属性设置与 <td rowspan="2">关键单元格</td> 要一致
   headerCell.RowSpan = 2;
   headerCell.Controls.Add(newCells);
   rowHeader.Cells.Add(headerCell);
  
   rowHeader.Cells.Add(headerCell);
   rowHeader.Visible = true;
  
   //添加到 GridView1
   GridView1.Controls[0].Controls.AddAt(0, rowHeader);
   }
   }
  
   protected void GridView1_RowDataBound( object sender, GridViewRowEventArgs e )
   {
   if (e.Row.RowType == DataControlRowType.Header)
   {
   e.Row.Attributes.Add("style", "background:#9999FF;color:#FFFFFF;font-size:14px");
   }
   else
   {
   e.Row.Attributes.Add("style", "background:#FFF");
   }
   }
  
  </script>
  
  <html xmlns="http://www.w3.org/1999/xhtml">
  <head>
   <title>为 GridView 添加多层表头</title>
  </head>
  <body>
   <form id="Form1" runat="server">
   <ASP:GridView ID="GridView1" runat="server" CellSpacing="1" CellPadding="3" Font-Size="12px"
   Width="600px" BackColor="#000000" BorderWidth="0" OnRowDataBound="GridView1_RowDataBound"
   OnRowCreated="GridView1_RowCreated">
   </asp:GridView>
   </form>
  </body>
  </html>
  VB.NET
  
  <%@ Page Language="VB" AutoEventWireup="true" %>
  
  <!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  
  <script runat="server">
   Function CreateDataSource() As ICollection
   Dim dt As System.Data.DataTable = New System.Data.DataTable
   Dim dr As System.Data.DataRow
   dt.Columns.Add(New System.Data.DataColumn("学生班级", GetType(System.String)))
   dt.Columns.Add(New System.Data.DataColumn("学生姓名", GetType(System.String)))
   dt.Columns.Add(New System.Data.DataColumn("语文", GetType(System.Decimal)))
   dt.Columns.Add(New System.Data.DataColumn("数学", GetType(System.Decimal)))
   dt.Columns.Add(New System.Data.DataColumn("英语", GetType(System.Decimal)))
   dt.Columns.Add(New System.Data.DataColumn("计算机", GetType(System.Decimal)))
   Dim i As Integer = 0
   While i < 8
   Dim rd As System.Random = New System.Random(Environment.TickCount * i)
  
   dr = dt.NewRow
   dr(0) = "班级" + i.ToString
   dr(1) = "学生" + i.ToString
   dr(2) = System.Math.Round(rd.NextDouble * 100, 2)
   dr(3) = System.Math.Round(rd.NextDouble * 100, 2)
   dr(4) = System.Math.Round(rd.NextDouble * 100, 2)
   dr(5) = System.Math.Round(rd.NextDouble * 100, 2)
   dt.Rows.Add(dr)
   System.Math.Min(System.Threading.Interlocked.Increment(i), i - 1)
   End While
   Dim dv As System.Data.DataView = New System.Data.DataView(dt)
   Return dv
   End Function
  
   Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
   If Not IsPostBack Then
   GridView1.BorderColor = System.Drawing.Color.DarkOrange
   GridView1.DataSource = CreateDataSource()
   GridView1.DataBind()
   End If
   End Sub
  
   Protected Sub GridView1_RowCreated(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
   If e.Row.RowType = DataControlRowType.Header Then
   Dim rowHeader As GridViewRow = New GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal)
   Dim HeaderBackColor As String = "#EDEDED"
   rowHeader.BackColor = System.Drawing.ColorTranslator.FromHTML(HeaderBackColor)
   Dim newCells As Literal = New Literal
   newCells.Text = "表头文字1</th>" + _
   " <th colspan="2">表头文字2</th>" + _
   " <th colspan="2">表头文字3</th>" + _
   " <th>表头文字4</th>" + _
   " </tr>" + _
   " <tr bgcolor="" + HeaderBackColor + "">" + _
   " <th colspan="2">表头文字5</th>" + _
   " <th rowspan="2">表头文字6</th>" + _
   " <th colspan="2">表头文字7</th>" + _
   " </tr>" + _
   " <tr bgcolor="" + HeaderBackColor + "">" + _
   " <th>表头文字8</th>" + _
   " <th>表头文字9</th>" + _
   " <th>表头文字10</th>" + _
   " <th>表头文字11</th>" + _
   " <th>表头文字12"
   Dim cells As TableCellCollection = e.Row.Cells
   Dim headerCell As TableHeaderCell = New TableHeaderCell
   headerCell.RowSpan = 2
   headerCell.Controls.Add(newCells)
   rowHeader.Cells.Add(headerCell)
   rowHeader.Cells.Add(headerCell)
   rowHeader.Visible = True
   GridView1.Controls(0).Controls.AddAt(0, rowHeader)
   End If
   End Sub
  
   Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
   If e.Row.RowType = DataControlRowType.Header Then
   e.Row.Attributes.Add("style", "background:#9999FF;color:#FFFFFF;font-size:14px")
   Else
   e.Row.Attributes.Add("style", "background:#FFF")
   End If
   End Sub
  
  </script>
  
  <html xmlns="http://www.w3.org/1999/xhtml">
  <head>
   <title>为 GridView 添加多层表头</title>
  </head>
  <body>
   <form id="Form1" runat="server">
   <ASP:GridView ID="GridView1" runat="server" CellSpacing="1" CellPadding="3" Font-Size="12px"
   Width="600px" BackColor="#000000" BorderWidth="0" OnRowDataBound="GridView1_RowDataBound"
   OnRowCreated="GridView1_RowCreated">
   </asp:GridView>
   </form>
  </body>
  </html>  。

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