BlobFieldObject 類別

代表報表上的 Blob (二進位大型物件) 欄位物件。這個類別可讓您擷取代表特定種類欄位物件的物件，還可以讓您設定繼承自 ReportObject 類別的泛用格式選項。

如需這個類型的成員清單，請參閱 BlobFieldObject 成員。

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

[Visual Basic]

Public Class BlobFieldObject
   Inherits ReportObject
   Implements IDisposable

[C#]

public class BlobFieldObject : ReportObject, IDisposable

註解

透過 ReportObjects 集合的 Item 屬性以索引或名稱來擷取 ReportObject 物件，並將 ReportObject 轉換為 BlobFieldObject。

範例

[VJ#]

      private BlobFieldObject getBlobField(String reportObjectName)
      {
         BlobFieldObject blobField = null;
      
         try
         {
            blobField =
               (BlobFieldObject)Report.get_ReportDefinition()
               .get_ReportObjects().get_Item(reportObjectName);
         } 
         catch (Exception e)
         {
         }
      return blobField;
      

[Visual Basic]

      Private Function GetBlobField(ByVal reportObjectName As String) _
      As BlobFieldObject
         Dim blobField As BlobFieldObject
      
         If TypeOf _
            (Report.ReportDefinition.ReportObjects. _
            Item(reportObjectName)) Is BlobFieldObject Then
            blobField = _
               Report.ReportDefinition.ReportObjects. _
               Item(reportObjectName)
            GetBlobField = blobField
         Else : GetBlobField = Nothing
         End If
      End Function
      

[C#]

      private BlobFieldObject GetBlobField(string reportObjectName)
      {
         BlobFieldObject blobField = null;
      
         blobField =
            Report.ReportDefinition.ReportObjects[reportObjectName]
            as BlobFieldObject;
         return blobField;
      }
      

需求

命名空間 CrystalDecisions.CrystalReports.Engine

組件 CrystalDecisions.CrystalReports.Engine (CrystalDecisions.CrystalReports.Engine.dll)

請參閱

BlobFieldObject 成員 | CrystalDecisions.CrystalReports.Engine 命名空間

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