FieldObject 类

表示报表上的“字段”对象。该类使您可以检索表示特定种类和类型的字段对象的对象，还允许您设置从 ReportObject 类继承的一般格式选项。

有关该类型所有成员的列表，参见 FieldObject 成员。

System.Object
   CrystalDecisions.CrystalReports.Engine.EngineObjectBase
      CrystalDecisions.CrystalReports.Engine.ReportObject
         FieldObject

[Visual Basic]

Public Class FieldObject
Inherits ReportObject
Implements IDisposable

[C#]

public class FieldObject : ReportObject, IDisposable

示例

此示例通过 ReportObjects 集合的 Item 属性，按索引或名称检索 ReportObject 对象，并将 ReportObject 转换为 FieldObject。

  
[VJ#]
      private FieldObject getFieldObject(String reportObjectName)
      {
         FieldObject field = null;
      
         try
         {
            field = (FieldObject)Report.get_ReportDefinition()
               .get_ReportObjects().get_Item(reportObjectName);
         }
         catch (Exception e)
         {
         }
         return field;
      }
      

  
[Visual Basic]
      Private Function GetFieldObject _
         (ByVal reportObjectName As String) As FieldObject
      
         Dim field As FieldObject
      
         If TypeOf _
            (Report.ReportDefinition.ReportObjects. _
            Item(reportObjectName)) Is FieldObject Then
            field = _
               Report.ReportDefinition.ReportObjects. _
               Item(reportObjectName)
            GetFieldObject = field
         Else : GetFieldObject = Nothing
         End If
      End Function
      

  
[C#]
      private FieldObject GetFieldObject(string reportObjectName)
      {
         FieldObject field;
      
         field =
            Report.ReportDefinition.ReportObjects[reportObjectName]
            as FieldObject;
         return field;
      }
      

要求

命名空间 CrystalDecisions.CrystalReports.Engine

程序集 CrystalDecisions.CrystalReports.Engine (CrystalDecisions.CrystalReports.Engine.dll)

请参见

FieldObject 成员 | CrystalDecisions.CrystalReports.Engine 命名空间

**

©2005 Business Objects SA 保留所有权利。