ASP.NET datagridview控件表头定义

实现办法就是给单位格填充我们想要的格局代码。

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">
  // 策画数据,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("策画机", 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);

      //实现断定要显示的表头样式,也可以经由过程策画生成

      //    <tr>
      //      <td rowspan=""2"">关键单位格</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>
      // 上方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"">关键单位格</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("策画机", 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>
原文地址:https://www.cnblogs.com/kevinhome/p/2779327.html