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Unsupported Properties in a Table Object or Table Filter

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Outlook Developer Reference

This topic lists the properties that you cannot add to a Table or use in a Table filter. You cannot add these properties through Columns.Add, and you cannot specify these properties in a filter used by the following methods:

Properties In Table Object In Table Filter Comments
Binary properties Supported Not supported If you add a binary property to a Table referencing its namespace, the value of the property in the Table is in binary. You can use Row.BinaryToString to convert the value to a string.
Body properties, including Body, HTMLBody, http://schemas.microsoft.com/mapi/proptag/0x10130102 (for PR_HTML), and http://schemas.microsoft.com/mapi/proptag/0x10090102 (for PR_RTF_COMPRESSED) The Body property is supported with a condition that only the first 255 bytes of the value are stored in a Table. Other properties representing the body content in HTML or RTF are not supported. Because only the first 255 bytes of Body is stored in a Table, if you want to obtain the full body content of an item in text or HTML, use the item's EntryID in GetItemFromID to obtain the item object. Then retrieve the full value of Body through the item object. Only the Body property represented in text is supported in a filter. This means that the property must be referenced in a DASL filter as urn:schemas:httpmail:textdescription, and you cannot filter on any HTML tags in the body. To improve performance, use context indexer keywords in the filter to match strings in the body.
Computed properties, such as AutoResolvedWinner and BodyFormat. See below for a complete list of computed properties. Not supported Not supported To obtain the value of a computed property for an item in a Table, use the item's EntryID in GetItemFromID to obtain the item object. Then retrieve the property value through the item object.
Multi-valued properties, such as Categories, Children, Companies, and VotingOptions Supported Although both Jet and DASL filters both support multi-valued properties, use content indexing in DASL filters for more efficient filtering. For more information, see Filtering Items Using a Comparison with a Keywords Property. The format of the values of a multi-valued property in a Table depends on whether the property was added with its explicit built-in name or with a name referencing its namespace. If the property is added with its explicit built-in name, the value in the Table is a comma-delimited string. Otherwise, the value is a variant array. For more information, see How to: Access the Values of a Multi-valued Property in a Table.
Properties returning an object, such as Attachments, Parent, Recipients, RecurrencePattern, and UserProperties. Not supported if property is referenced by its explicit built-in name; supported if property is referenced by its namespace. Not supported if property is expressed in a Jet query; supported if property is expressed in a DASL query.

Unsupported Computed Properties

If you attempt to add one of the computed properties listed below using Columns.Add, referencing the property either by the explicit property name or by namespace, you will get the error, IDS_ERR_BLOCKED_PROPERTY. To determine the value of these properties, obtain the item object using its Entry ID and then use the item object to determine the property value (as in object.property):

If you attempt to use one of the computed properties listed below in a Jet filter (referencing the property by its explicit property name) for Table.Restrict, you will get the error, IDS_ERR_ES_INVALIDRESTRICTION:

Bb147580.vs_note(en-us,office.12).gif  Note
For a computed property such as TaskSubject or IsMarkedAsTask, you cannot add it to a Table using Columns.Add or filter it using Table.Restrict, if you reference the property with the explicit property name. However, you can add or filter on the property if you reference it by namespace, as in the following code sample in Visual Basic for Applications: 
  Sub TableForIsMarkedAsTask()
    Dim oT As Outlook.Table
    Dim oRow As Outlook.Row
    Dim filter As String
    '0x0E2B0003 represents IsMarkedAsTask
    filter = "@SQL=" & Chr(34) _
    & "http://schemas.microsoft.com/mapi/proptag/0x0E2B0003" & Chr(34) & " = 1"
    'Table only contains rows for items where IsMarkedAsTask is True
    Set oT = Application.Session.GetDefaultFolder(olFolderInbox).GetTable(filter)
    oT.Columns.Add ("TaskStartDate")
    oT.Columns.Add ("TaskDueDate")
    oT.Columns.Add ("TaskCompletedDate")
    'Use GUID/ID to represent TaskSubject
    oT.Columns.Add ( _
        "http://schemas.microsoft.com/mapi/id/{00062008-0000-0000-C000-000000000046}/85A4001E")
    Do Until oT.EndOfTable
        Set oRow = oT.GetNextRow
        Debug.Print oRow( _
        "http://schemas.microsoft.com/mapi/id/{00062008-0000-0000-C000-000000000046}/85A4001E"), _
        oRow("TaskStartDate"), oRow("TaskDueDate"), oRow("TaskCompletedDate")
    Loop
End Sub


  Sub TableForIsMarkedAsTask()
    Dim oT As Outlook.Table
    Dim oRow As Outlook.Row
    Dim filter As String
    '0x0E2B0003 represents IsMarkedAsTask
    filter = "@SQL=" & Chr(34) _
    & "http://schemas.microsoft.com/mapi/proptag/0x0E2B0003" & Chr(34) & " = 1"
    'Table only contains rows for items where IsMarkedAsTask is True
    Set oT = Application.Session.GetDefaultFolder(olFolderInbox).GetTable(filter)
    oT.Columns.Add ("TaskStartDate")
    oT.Columns.Add ("TaskDueDate")
    oT.Columns.Add ("TaskCompletedDate")
    'Use GUID/ID to represent TaskSubject
    oT.Columns.Add ( _
        "http://schemas.microsoft.com/mapi/id/{00062008-0000-0000-C000-000000000046}/85A4001E")
    Do Until oT.EndOfTable
        Set oRow = oT.GetNextRow
        Debug.Print oRow( _
        "http://schemas.microsoft.com/mapi/id/{00062008-0000-0000-C000-000000000046}/85A4001E"), _
        oRow("TaskStartDate"), oRow("TaskDueDate"), oRow("TaskCompletedDate")
    Loop
End Sub

See Also