如何固定table的表头

1.html代码

<HTML>

<HEAD>

; .mainDiv { overflow:auto; scrollbar-face-color:9999ff; height:expression((document.body.clientHeight-this.offsetTop-20>this.children[0].offsetHeight)?(this.children[0].offsetHeight+20) : (document.body.clientHeight-this.offsetTop-20)); width:expression(document.body.clientWidth-20); }

</style>

</HEAD>

<body>

<br>

<%=fixedHeader()%>

</div>

</body>

</HTML>

2.cs代码

public class FixTableHeader : System.Web.UI.Page

{

private void Page_Load(object sender, System.EventArgs e)

{

// 用于固定table的表头

}

Web Form Designer generated code

protected string fixedHeader()

{

string str=@"<table width="+"\""+"100%"+"\"" +"border="+"\""+"1"+"\""+" cellspacing="+"\""+"0"+"\""+" style="+"\""+"MARGIN-TOP:-2px"+"\""+">";

str+="<TR class="+"\""+"fixedHeaderTr"+"\""+" style="+"\""+"BACKGROUND:navy;COLOR:white"+"\""+">";

str+="<TD nowrap>Header A</TD>";

str+="<TD nowrap>Header B</TD>";

str+="<TD nowrap>Header C</TD>";

str+="</TR>";

for(int m=0;m<100;m++)

{

str+="<TR>";

str+="<TD>A"+m+"</TD>";

str+="<TD>B"+m+"</TD>";

str+="<TD>C"+m+"</TD>";

str+="</TR>";

}

str+="</table>";

return str;

}