aspx+rpt实现网页打印

1、自定义一个用户UI，包括一个CrystalReportViewer控件，代码：

public partial class RPTViewer : System.Web.UI.UserControl
{
    private ReportClass rs;

    protected void Page_Load(object sender, EventArgs e)
    {
        this.CRViewer.ReportSource = rs;
    }

    public void ConfigReport(DataSet ds, ReportClass rpt)
    {
        rpt.SetDataSource(ds);
        this.rs = rpt;
    }

    public void ConfigReport(DSConfig dsConfig, ReportClass rpt)
    {
        rpt.SetDataSource(dsConfig.GetDataSet());
        this.rs = rpt;
    }

    public void ConfigReport(ReportClass rpt)
    {
        this.rs = rpt;
    }
 }

2、构建包括数据源和报表格式的类库，主要包括DataSet，Report，获取数据的DSConfig抽象类及具体实现类

 public abstract class DSConfig
    {
        protected string[] id;
        protected string sqlconnstr;
    &n