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ContentClass Property

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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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