c# 水晶报表中处理TextObject

代码

using  System;
using  System.Data;
using  System.Configuration;
using  System.Web;
using  System.Web.Security;
using  System.Web.UI;
using  System.Web.UI.WebControls;
using  System.Web.UI.WebControls.WebParts;
using  System.Web.UI.HtmlControls;
 
using  CrystalDecisions.CrystalReports.Engine;
using  CrystalDecisions.ReportAppServer.ClientDoc;
using  CrystalDecisions.ReportAppServer.DataDefModel;
 
 
public   partial   class  _Default : System.Web.UI.Page 
{
     protected  ReportDocument boReportDocument;
 
 
     protected   void  Page_Load( object  sender, EventArgs e)
    {
         if  ( ! this .IsPostBack)
        {
            ConfigureCrystalReports();
        }
 
        CrystalReportViewer1.ReportSource  =  Session[ " Report " ];
 
    }
 
     protected   void  ConfigureCrystalReports()
    {
        ISCDReportClientDocument boReportClientDocument;        
        CrystalDecisions.ReportAppServer.Controllers.ReportObjectController boReportObjectController;
        CrystalDecisions.ReportAppServer.ReportDefModel.TextObject boOldTextObject, boNewTextObject;
        CrystalDecisions.ReportAppServer.ReportDefModel.Paragraph boParagraph;
        CrystalDecisions.ReportAppServer.ReportDefModel.ParagraphFieldElement boParagraphFieldElement;
        CrystalDecisions.ReportAppServer.ReportDefModel.ParagraphTextElement boParagraphTextElement;
        
        boReportDocument  =   new  ReportDocument();
        boReportDocument.Load(Server.MapPath( " CrystalReport.rpt " ));
 
        boReportClientDocument  =  boReportDocument.ReportClientDocument;        
        boReportObjectController  =  boReportClientDocument.ReportDefController.ReportObjectController;
               
 
         //  Get a handle on the ReportObjectController so we can manipulate the TextObject        
         foreach  (CrystalDecisions.ReportAppServer.ReportDefModel.ReportObject boReportObject  in  boReportObjectController.GetAllReportObjects())
        {
             if  (boReportObject.Kind  ==  CrystalDecisions.ReportAppServer.ReportDefModel.CrReportObjectKindEnum.crReportObjectKindText)
            {
                boOldTextObject  =  (CrystalDecisions.ReportAppServer.ReportDefModel.TextObject)boReportObject;
                boNewTextObject  =  (CrystalDecisions.ReportAppServer.ReportDefModel.TextObject)boOldTextObject.Clone( true );
                
                 //  Clear out all paragraphs from the current text object
 
                boNewTextObject.Paragraphs.RemoveAll();
 
                 //  Create a new Paragraph to add to our TextObject
                boParagraph  =   new  CrystalDecisions.ReportAppServer.ReportDefModel.Paragraph();
 
                 //  Create a new ParagraphTextElement to be added to our paragraph
                
                boParagraphTextElement  =   new  CrystalDecisions.ReportAppServer.ReportDefModel.ParagraphTextElement();                
                boParagraphTextElement.Text  =   " The value of my parameter is:  " ;
                boParagraph.ParagraphElements.Add(boParagraphTextElement);                
 
                 //  Create a new ParagraphFieldElement (our parameter field) to be added to our paragraph                
                boParagraphFieldElement  =   new  CrystalDecisions.ReportAppServer.ReportDefModel.ParagraphFieldElement();
                boParagraphFieldElement.Kind  =  CrystalDecisions.ReportAppServer.ReportDefModel.CrParagraphElementKindEnum.crParagraphElementKindField;
                boParagraphFieldElement.DataSource  =   " {?Currency} " ;                
 
                boParagraph.ParagraphElements.Add(boParagraphFieldElement);
                
                boNewTextObject.Paragraphs.Add(boParagraph);
                
                boReportObjectController.Modify(boOldTextObject, boNewTextObject);
 
                 break ;
            }
        }
 
        Session.Add( " Report " , boReportDocument);
    }
}