不知道是自己水平不够，还是水晶报表自身的缺陷，水晶在纸张控制这块比较弱（特别是半联Letter），达不到客户需求，改ActiveReport 3.0 纸张方面倒是解决了，但在行（套打）固定方面，又让我伤脑筋，经过两天的摸索，终于搞定：
if( rpt.PageNumber.ToString() ==((TextBox)rpt.Sections["PageHeader1"].Controls["txtField11"]).Text)
{
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrOrderTotalX1"]).Visible=true;
}
1.可控制控件是否显示
2.变量的更改
补充：
判断是否到了页尾，通常是用于固定行数，最后一页显示汇总数据
public bool ActiveReport_FetchData(bool eof)
{
if(eof==true)
{
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrOrderTotalD1"]).Visible=true;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrOrderTotalX1"]).Visible=true;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrPayedD1"]).Visible=true;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrPayedX1"]).Visible=true;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrBalanceD1"]).Visible=true;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrBalanceX1"]).Visible=true;
}
else
{
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrOrderTotalD1"]).Visible=false;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrOrderTotalX1"]).Visible=false;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrPayedD1"]).Visible=false;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrPayedX1"]).Visible=false;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrBalanceD1"]).Visible=false;
((TextBox)rpt.Sections["PageFooter1"].Controls["txtrBalanceX1"]).Visible=false;
}
return eof;
}