BlobFieldObject Class

Represents a blob field object on the report. This class allows you to retrieve the objects representing the specific kind of field object and also allows you to set generic format options inherited from the ReportObject class.

Namespace CrystalDecisions.CrystalReports.Engine Assembly CrystalDecisions.CrystalReports.Engine (CrystalDecisions.CrystalReports.Engine.dll)

Syntax

'Declaration
Public Class BlobFieldObject
    Inherits ReportObject
    Implements IDisposable

public class BlobFieldObject : ReportObject, IDisposable

Remarks

Retrieve a ReportObject object by index or by name through the Item property of the ReportObjects collection, and cast the ReportObject as a BlobFieldObject.

Example

This example shows how to get the BlobFieldObject and update the properties of a blob field that determine an object's position and formatting.

'Declaration

      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

        Private Sub UpdateBlobFieldObjectProperties(ByVal myReportDocument As ReportDocument, ByVal reportObjectName As String, ByVal top As Integer, ByVal left As Integer, ByVal height As Integer, ByVal width As Integer)
          Dim myReportObject As ReportObject = myReportDocument.ReportDefinition.ReportObjects.Item(reportObjectName)
          If myReportObject.Kind = ReportObjectKind.BlobFieldObject Then
            Dim myBlobFieldObject As BlobFieldObject = myReportObject
            myBlobFieldObject.Top = top
            myBlobFieldObject.Left = left
            myBlobFieldObject.Height = height
            myBlobFieldObject.Width = width

            Dim myObjectFormat As ObjectFormat = myBlobFieldObject.ObjectFormat
            myObjectFormat.EnableCanGrow = False
            myObjectFormat.EnableSuppress = False
            myObjectFormat.EnableCloseAtPageBreak = True
            myObjectFormat.EnableKeepTogether = True
          End If
  End Sub
      

      private BlobFieldObject GetBlobField(string reportObjectName)
      {
         BlobFieldObject blobField = null;

         blobField =
            Report.ReportDefinition.ReportObjects[reportObjectName]
            as BlobFieldObject;
         return blobField;
      }

        private void UpdateBlobFieldObjectProperties(ReportDocument reportDocument, String reportObjectName, int top, int left, int height, int width)
        {
          ReportObject reportObject = reportDocument.ReportDefinition.ReportObjects[reportObjectName];
          if (reportObject.Kind == ReportObjectKind.BlobFieldObject)
          {
            BlobFieldObject blobFieldObject = (BlobFieldObject)reportObject;

            blobFieldObject.Top = top;
            blobFieldObject.Left = left;
            blobFieldObject.Height = height;
            blobFieldObject.Width = width;

            ObjectFormat objectFormat = blobFieldObject.ObjectFormat;
            objectFormat.EnableCanGrow = false;
            objectFormat.EnableSuppress = false;
            objectFormat.EnableCloseAtPageBreak = true;
            objectFormat.EnableKeepTogether = true;
          }
  }
      

Inheritance Hierarchy

Object
   EngineObjectBase
      ReportObject
         BlobFieldObject

Version Information

Crystal Reports Basic for Visual Studio 2008

Supported since: Crystal Reports for Visual Studio .NET 2002

See Also

Reference

BlobFieldObject Members
CrystalDecisions.CrystalReports.Engine Namespace