求解
<asp:TemplateField SortExpression="f_FileName" HeaderText="File Name">
<itemtemplate>
<asp:LinkButton ID ="btnSelect" runat ="server" PostBackUrl ='../CAR/AttachmentGet.aspx' Text ='<%# Eval("f_FileName") %>'/>
<asp:HiddenField ID="AttachmentID" runat ="server" Value='<%# Eval("f_RowID")%>' />
</itemtemplate>
</asp:TemplateField>

这段代码我现在不想要对f_FileName进行排序了 应该怎么改？其他都不变

[解决办法]
SortExpression="f_FileName" 这句去掉