ContentClass Property

ContentClass Property

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The folder's content class.

Applies To

IFolder Interface

Type Library

Microsoft CDO for Exchange 2000 Library

DLL Implemented In

CDOEX.DLL

Syntax

[Visual Basic]Property ContentClass As String

[C++]HRESULT get_ContentClass(BSTR* pVal);
HRESULT put_ContentClass(BSTR Val);

Parameters

• pVal
  Returns the value of the ContentClass property as a reference to a BSTR.
• Val
  Sets the value of the ContentClass property to the value of the BSTR.

Remarks

The ContentClass property is used to indicate the intent or purpose of the folder. For example, a user's Inbox has a content class of "urn:content-classes:mailfolder".

The content class is not the same as the PR_CONTAINER_CLASS MAPI property.

Examples

[Visual Basic]

' Reference to Microsoft ActiveX Data Objects 2.5 Library ' Reference to Microsoft CDO for Exchange 2000 Library

' Note: It is recommended that all input parameters be validated before being used. Function CreateFolder(Url As String, _ ContentClass As String, _ Description As String) Set Fldr = New CDO.Folder With Fldr .ContentClass = ContentClass .Description = Description .DataSource.SaveTo Url, , _ adModeReadWrite, _ adCreateCollection

End With Set CreateFolder = Fldr

End Function

' Note: It is recommended that all input parameters be validated before being used. Function CreateFolder( Url, ContentClass, Description ) Set Fldr = CreateObject("CDO.Folder") With Fldr .ContentClass = ContentClass .Description = Description On Error Resume Next .DataSource.Open Url, , adModeReadWrite

If Err.Number <> 0 Then
  Err.Clear
  .DataSource.SaveTo Url, , _
                    adModeReadWrite, _
                   adCreateCollection
  If Err.Number <> 0 Then
   ' Handle error
  End If
End If

End With

On Error Goto 0 Set CreateFolder = Fldr

End Function

[C++]

/* You must have the following paths in your INCLUDE path. %CommonProgramFiles%\system\ado %CommonProgramFiles%\microsoft shared\cdo

*/ #ifndef _CORE_EXAMPLE_HEADERS_INCLUDED #define _CORE_EXAMPLE_HEADERS_INCLUDED #import <msado15.dll> no_namespace #import <cdoex.dll> no_namespace #include <iostream.h> #endif // Note: It is recommended that all input parameters be validated before being used. IFolderPtr CreateFolder(bstr_t url, bstr_t contentclass, bstr_t description) {

if(url == bstr_t("")) throw _com_error(E_POINTER);

_ConnectionPtr Conn(__uuidof(Connection)); IDataSourcePtr pDsrc(__uuidof(Folder));

Conn->Provider = "ExOLEDB.DataSource"; try { Conn->Open(url,bstr_t(),bstr_t(),-1); } catch(_com_error e) { throw e; }

IFolderPtr pFldr = pDsrc;

pFldr->ContentClass = contentclass; pFldr->Description = description;

try { pDsrc->SaveTo( url, variant_t((IDispatch*)Conn,true), adModeReadWrite, (RecordCreateOptionsEnum) ( adCreateCollection ), adOpenSource, bstr_t(), bstr_t()); } catch(_com_error e) { cerr << "Error saving folder to store" << endl; throw e; }

// Close the connection. pConn->Close(); pConn = NULL;

return pFldr; }

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Build: June 2007 (2007.618.1)

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