ASP.NET 2.0中GridView无限层复杂表头的实现

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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