在ASP.NET页面中冻结DataGrid的列或头部
写在前面：在Asp.Net页面中，有时候我们需要冻结DataGrid中的某一列，比如显示的数据项过多时，我们需要让第一列不动，拖动横向滚动条时其他列隐藏，这时就需要冻结列了；另外，有时候也需要让DataGrid的头部不动，拖动纵向滚动条时，下面的数据项可以滚动。在实现的过程中，其实就是用了CSS样式来控制，一起看一下。
一.冻结某一列：
二.冻结头部：
好了，实现很简单，大家可以试一下，有时候还是挺有用的^_^
注意：大家在运行的时候把DataGrid中的注释去掉，要不会出错
一.冻结某一列：
1
<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="WebDataGridColumn.WebForm1" %>
2
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
3<HTML>
4 <HEAD>
5 <title>WebForm1</title>
6 <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
7 <meta name="CODE_LANGUAGE" Content="C#">
8 <meta name="vs_defaultClientScript" content="JavaScript">
9 <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
10 <!--要冻结哪一列，就把fixCol这个CSS加到HeaderStyle-CssClass和ItemStyle-CssClass-->
11 <style type="text/css">
12
.fixCol { ; LEFT: expression(this.offsetParent.scrollLeft); POSITION: relative }
13
</style>
14 </HEAD>
15 <body>
16 <form id="Form1" method="post" runat="server">
17 <TABLE id="Table1" cellSpacing="1" cellPadding="1" width="80%" border="0" align="center">
18 <TR>
19 <TD height="50" align="center">
20 <asp:Label id="Label1" runat="server" Font-Bold="True" ForeColor="Red" Font-Size="X-Large">DataGrid冻结列或头部的例子</asp:Label></TD>
21 </TR>
22 <TR>
23 <TD align="center">
24 <asp:DataGrid id="DataGrid1" runat="server" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px"
25 BackColor="White" CellPadding="4" AutoGenerateColumns="False" Width="805px">
26 <SelectedItemStyle Font-Bold="True" ForeColor="#663399" BackColor="#FFCC66"></SelectedItemStyle>
27 <ItemStyle ForeColor="#330099" BackColor="White"></ItemStyle>
28 <HeaderStyle Font-Bold="True" ForeColor="#FFFFCC" BackColor="#990000"></HeaderStyle>
29 <FooterStyle ForeColor="#330099" BackColor="#FFFFCC"></FooterStyle>
30 <Columns>
31 <asp:BoundColumn DataField="LastName" HeaderText="姓名">
32 <!--下面就是冻结列-->
33 <HeaderStyle CssClass="fixCol"></HeaderStyle>
34 <ItemStyle CssClass="fixCol"></ItemStyle>
35 </asp:BoundColumn>
36 <asp:BoundColumn DataField="Title" HeaderText="标题"></asp:BoundColumn>
37 <asp:BoundColumn DataField="BirthDate" HeaderText="出生日期"></asp:BoundColumn>
38 <asp:BoundColumn DataField="Address" HeaderText="家庭住址"></asp:BoundColumn>
39 </Columns>
40 <PagerStyle HorizontalAlign="Center" ForeColor="#330099" BackColor="#FFFFCC"></PagerStyle>
41 </asp:DataGrid></TD>
42 </TR>
43 </TABLE>
44 </form>
45 </body>
46</HTML>
47
<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="WebDataGridColumn.WebForm1" %>
2
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >3
<HTML>4
<HEAD>5
<title>WebForm1</title>6
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">7
<meta name="CODE_LANGUAGE" Content="C#">8
<meta name="vs_defaultClientScript" content="JavaScript">9
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">10
<!--要冻结哪一列，就把fixCol这个CSS加到HeaderStyle-CssClass和ItemStyle-CssClass-->11
<style type="text/css">12
.fixCol { ; LEFT: expression(this.offsetParent.scrollLeft); POSITION: relative }
.fixCol 13
</style>14
</HEAD>15
<body>16
<form id="Form1" method="post" runat="server">17
<TABLE id="Table1" cellSpacing="1" cellPadding="1" width="80%" border="0" align="center">18
<TR>19
<TD height="50" align="center">20
<asp:Label id="Label1" runat="server" Font-Bold="True" ForeColor="Red" Font-Size="X-Large">DataGrid冻结列或头部的例子</asp:Label></TD>21
</TR>22
<TR>23
<TD align="center">24
<asp:DataGrid id="DataGrid1" runat="server" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px"25
BackColor="White" CellPadding="4" AutoGenerateColumns="False" Width="805px">26
<SelectedItemStyle Font-Bold="True" ForeColor="#663399" BackColor="#FFCC66"></SelectedItemStyle>27
<ItemStyle ForeColor="#330099" BackColor="White"></ItemStyle>28
<HeaderStyle Font-Bold="True" ForeColor="#FFFFCC" BackColor="#990000"></HeaderStyle>29
<FooterStyle ForeColor="#330099" BackColor="#FFFFCC"></FooterStyle>30
<Columns>31
<asp:BoundColumn DataField="LastName" HeaderText="姓名">32
<!--下面就是冻结列-->33
<HeaderStyle CssClass="fixCol"></HeaderStyle>34
<ItemStyle CssClass="fixCol"></ItemStyle>35
</asp:BoundColumn>36
<asp:BoundColumn DataField="Title" HeaderText="标题"></asp:BoundColumn>37
<asp:BoundColumn DataField="BirthDate" HeaderText="出生日期"></asp:BoundColumn>38
<asp:BoundColumn DataField="Address" HeaderText="家庭住址"></asp:BoundColumn>39
</Columns>40
<PagerStyle HorizontalAlign="Center" ForeColor="#330099" BackColor="#FFFFCC"></PagerStyle>41
</asp:DataGrid></TD>42
</TR>43
</TABLE>44
</form>45
</body>46
</HTML>47
二.冻结头部：
1<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="WebDataGridColumn.WebForm1" %>
2<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
3<HTML>
4 <HEAD>
5 <title>WebForm1</title>
6 <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
7 <meta name="CODE_LANGUAGE" Content="C#">
8 <meta name="vs_defaultClientScript" content="JavaScript">
9 <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
10 <!--把fixTitle这个CSS加到DataGrid的HeaderStyle-CssClass和ItemStyle-CssClass-->
11 <style type="text/css">
12 .fixTitle { POSITION: relative; ; TOP: expression(this.offsetParent.scrollTop) }
13 </style>
14 </HEAD>
15 <body>
16 <form id="Form1" method="post" runat="server">
17 <TABLE id="Table1" cellSpacing="1" cellPadding="1" width="80%" border="0" align="center">
18 <TR>
19 <TD height="50" align="center">
20 <asp:Label id="Label1" runat="server" Font-Bold="True" ForeColor="Red" Font-Size="X-Large">DataGrid冻结列或头部的例子</asp:Label></TD>
21 </TR>
22 <TR>
23 <TD align="center">
24 <asp:DataGrid id="DataGrid1" runat="server" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px"
25 BackColor="White" CellPadding="4" AutoGenerateColumns="False" Width="805px">
26 <SelectedItemStyle Font-Bold="True" ForeColor="#663399" BackColor="#FFCC66"></SelectedItemStyle>
27 <!--冻结头部-->
28 <ItemStyle ForeColor="#330099" BackColor="White" CssClass="fixTitle"></ItemStyle>
29 <HeaderStyle Font-Bold="True" ForeColor="#FFFFCC" BackColor="#990000" CssClass="fixTitle"></HeaderStyle>
30
31 <FooterStyle ForeColor="#330099" BackColor="#FFFFCC"></FooterStyle>
32 <Columns>
33 <asp:BoundColumn DataField="LastName" HeaderText="姓名"></asp:BoundColumn>
34 <asp:BoundColumn DataField="Title" HeaderText="标题"></asp:BoundColumn>
35 <asp:BoundColumn DataField="BirthDate" HeaderText="出生日期"></asp:BoundColumn>
36 <asp:BoundColumn DataField="Address" HeaderText="家庭住址"></asp:BoundColumn>
37 </Columns>
38 <PagerStyle HorizontalAlign="Center" ForeColor="#330099" BackColor="#FFFFCC"></PagerStyle>
39 </asp:DataGrid></TD>
40 </TR>
41 </TABLE>
42 </form>
43 </body>
44</HTML>
45
<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="WebDataGridColumn.WebForm1" %>2
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >3
<HTML>4
<HEAD>5
<title>WebForm1</title>6
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">7
<meta name="CODE_LANGUAGE" Content="C#">8
<meta name="vs_defaultClientScript" content="JavaScript">9
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">10
<!--把fixTitle这个CSS加到DataGrid的HeaderStyle-CssClass和ItemStyle-CssClass-->11
<style type="text/css">12
.fixTitle { POSITION: relative; ; TOP: expression(this.offsetParent.scrollTop) }13
</style>14
</HEAD>15
<body>16
<form id="Form1" method="post" runat="server">17
<TABLE id="Table1" cellSpacing="1" cellPadding="1" width="80%" border="0" align="center">18
<TR>19
<TD height="50" align="center">20
<asp:Label id="Label1" runat="server" Font-Bold="True" ForeColor="Red" Font-Size="X-Large">DataGrid冻结列或头部的例子</asp:Label></TD>21
</TR>22
<TR>23
<TD align="center">24
<asp:DataGrid id="DataGrid1" runat="server" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px"25
BackColor="White" CellPadding="4" AutoGenerateColumns="False" Width="805px">26
<SelectedItemStyle Font-Bold="True" ForeColor="#663399" BackColor="#FFCC66"></SelectedItemStyle>27
<!--冻结头部-->28
<ItemStyle ForeColor="#330099" BackColor="White" CssClass="fixTitle"></ItemStyle>29
<HeaderStyle Font-Bold="True" ForeColor="#FFFFCC" BackColor="#990000" CssClass="fixTitle"></HeaderStyle>30
31
<FooterStyle ForeColor="#330099" BackColor="#FFFFCC"></FooterStyle>32
<Columns>33
<asp:BoundColumn DataField="LastName" HeaderText="姓名"></asp:BoundColumn>34
<asp:BoundColumn DataField="Title" HeaderText="标题"></asp:BoundColumn>35
<asp:BoundColumn DataField="BirthDate" HeaderText="出生日期"></asp:BoundColumn>36
<asp:BoundColumn DataField="Address" HeaderText="家庭住址"></asp:BoundColumn>37
</Columns>38
<PagerStyle HorizontalAlign="Center" ForeColor="#330099" BackColor="#FFFFCC"></PagerStyle>39
</asp:DataGrid></TD>40
</TR>41
</TABLE>42
</form>43
</body>44
</HTML>45
好了，实现很简单，大家可以试一下，有时候还是挺有用的^_^
注意：大家在运行的时候把DataGrid中的注释去掉，要不会出错
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Worktile，新一代简单好用、体验极致的团队协同、项目管理工具，让你和你的团队随时随地一起工作。完全免费，现在就去了解一下吧。
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