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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原文地址:https://www.cnblogs.com/jackzhang/p/569185.html