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PropertyAccessor.SetProperty method (Outlook)

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Sets the property specified by SchemaName to the value specified by Value.

Syntax

expression. SetProperty( _SchemaName_ , _Value_ )

expression A variable that represents a PropertyAccessor object.

Parameters

Name Required/Optional Data type Description
SchemaName Required String The name of a property whose value is to be set as specified by the Value parameter. The property is referenced by namespace. For more information, see Referencing Properties by Namespace.
Value Required Variant The value that is to be set for the property specified by the SchemaName parameter.

Remarks

If the property does not exist and the SchemaName contains a valid property specifier, then SetProperty creates the property and assigns the value specified by Value. If the property does exist and SchemaName is valid, then SetProperty assigns the property with the value specified by Value.

Note that a custom property created by using the PropertyAccessor is not supported in a custom view. If you want to view a custom property on an item, create the property by using the Add method of the UserProperties object.

If the parent object of the PropertyAccessor supports an explicit Save operation, then the properties should be saved to the object with an explicit Save method call. If the object does not support an explicit Save operation, then the properties are saved to the object when SetProperties is called.

Use caution and ensure that all exceptions are handled correctly. Conditions where setting properties fails include:

  • The property is read-only, as some Outlook and MAPI properties are read-only.

  • The property referenced by the specified namespace is not found.

  • The property is specified in an invalid format and cannot be parsed.

  • The property does not exist and cannot be created.

  • The property exists but is passed a value of an incorrect type.

  • Cannot open the property because the client is offline.

  • The property is created using the UserProperties.Add method. When setting the property for the first time, you must use the UserProperty.Value property instead of the SetProperties or SetProperty method of the PropertyAccessor object.

For more information on setting properties using the PropertyAccessor object, see Best Practices for Getting and Setting Properties.

Example

The following code sample shows how to use the PropertyAccessor to set a custom property on a MailItem object to a value. If the custom property does not exist, PropertyAccessor.SetProperty will create and then set the property. The property is saved with the MailItem.Save method.

Sub DemoPropertyAccessorSetProperty() 
 Dim myProp As String 
 Dim myValue As Variant 
 Dim oMail As Outlook.MailItem 
 Dim oPA As Outlook.PropertyAccessor 
 'Get first item in the inbox 
 Set oMail = _ 
 Application.Session.GetDefaultFolder(olFolderInbox).Items(1) 
 'Name for custom property using the MAPI string namespace 
 myProp = "http://schemas.microsoft.com/mapi/string/" & _ 
 "{FFF40745-D92F-4C11-9E14-92701F001EB3}/myCustomer" 
 myValue = "Dan Wilson" 
 'Set value with SetProperty call 
 'If the property does not exist, then SetProperty 
 'adds the property to the object when saved. 
 'The type of the property is the type of the element 
 'passed in myValue. 
 On Error GoTo ErrTrap 
 Set oPA = oMail.PropertyAccessor 
 oPA.SetProperty myProp, myValue 
 
 'Save the item 
 oMail.Save 
 Exit Sub 
ErrTrap: 
 Debug.Print Err.Number, Err.Description 
End Sub

See also

PropertyAccessor Object

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