Question

我使用Visual Studio 2010 SAP Crystal Reports 我使用报表查看器设置了一个表单，并将自定义设计的rpt文件加载到查看器的源中它工作正常我甚至可以从后面的代码中更改rpt文件的自定义设计字段：

ReportDocument reportDocument = new ReportDocument();

string filePath = AppDomain.CurrentDomain.BaseDirectory; 

filePath = filePath.Replace("bin\\Debug\\", "MyReportClass.rpt");

reportDocument.Load(filePath);

CrystalDecisions.CrystalReports.Engine.TextObject MyText1= ((CrystalDecisions.CrystalReports.Engine.TextObject)reportDocument.ReportDefinition.Sections[3].ReportObjects["MyText1"]);

MyText1.Text = "Test Work";

MyReportViewer.ReportSource = reportDocument;

问题：如何在代码后面的ReportDocument中添加新的TextObject？

我试过了：

reportDocument.Sections(2).AddTextObject(..

但该方法不存在

Answer 1

Crystal Reports TextObject并不那么简单。您必须首先创建一个ParagraphTextElement并将其放在ParagraphElements对象中，在Paragraphs对象的Paragraph对象中，并将该对象分配给TextObject.Paragraphs属性。

然后，您需要在ReportDefinition中找到要添加的报表部分，然后通过ReportDefinition将该对象添加到该部分。

虽然足够解释，但这是我的使用陈述：

#region Using

using System;
using System.Windows;

using CrystalDecisions.ReportAppServer.Controllers;
using CrystalDecisions.ReportAppServer.ReportDefModel;

#endregion

这是我使用它的代码：

var reportDocument = new CrystalDecisions.CrystalReports.Engine.ReportDocument();

var filePath = AppDomain.CurrentDomain.BaseDirectory;
filePath = filePath.Replace("bin\\Debug\\", "MyReport.rpt");
reportDocument.Load(filePath);

ReportDefController2 reportDefinitionController = reportDocument.ReportClientDocument.ReportDefController;

ISCRParagraphTextElement paraTextElementClass = new ParagraphTextElement { Text = "Text Work", Kind = CrParagraphElementKindEnum.crParagraphElementKindText };

ParagraphElements paragraphElements = new ParagraphElements();
paragraphElements.Add(paraTextElementClass);

Paragraph paragraph = new Paragraph();
paragraph.ParagraphElements = paragraphElements;

Paragraphs paragraphs = new Paragraphs();
paragraphs.Add(paragraph);

TextObject newTextObject = new TextObject();
newTextObject.Paragraphs = paragraphs;

var detailSection = reportDefinitionController.ReportDefinition.DetailArea.Sections[0];
reportDefinitionController.ReportObjectController.Add(newTextObject, detailSection, 0);

// MyReportViewer.ReportSource = reportDocument;
this.crystalReportsViewer.ViewerCore.ReportSource = reportDocument;

最后一行是不同的，因为我正在使用WPF应用程序进行测试。我希望它有所帮助！

在C＃中将TextObject添加到ReportDocument

1 个答案: