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How to: Create and Modify Custom Document Properties

The Microsoft Office applications listed above provide built-in properties that are stored with documents. In addition, you can create and modify custom document properties if there is additional information you want to store with the document.

Applies to: The information in this topic applies to document-level projects and application-level projects for the following applications: Excel 2013 and Excel 2010; PowerPoint 2013 and PowerPoint 2010; Project 2013 and Project 2010; Word 2013 and Word 2010. For more information, see Features Available by Office Application and Project Type.

Use the CustomDocumentProperties property of a document to work with custom properties. For example, in a document-level project for Microsoft Office Excel, use the CustomDocumentProperties property of the ThisWorkbook class. In an application-level project for Excel, use the CustomDocumentProperties property of a Workbook object. These properties return a DocumentProperties object, which is a collection of DocumentProperty objects. You can use the Item property of the collection to retrieve a particular property, either by name or by index within the collection.

The following example demonstrates how to add a custom property in a document-level customization for Excel and assign it a value.

link to video For a related video demonstration, see How Do I: Access and Manipulate Custom Document Properties in Microsoft Word?.

Sub TestProperties()
    Dim properties As Microsoft.Office.Core.DocumentProperties
    properties = CType(Me.CustomDocumentProperties, Office.DocumentProperties)

    If ReadDocumentProperty("Project Name") <> Nothing Then
        properties("Project Name").Delete()
    End If

    properties.Add("Project Name", False, _
        Microsoft.Office.Core.MsoDocProperties.msoPropertyTypeString, _
        "White Papers")
End Sub 

Private Function ReadDocumentProperty(ByVal propertyName As String) As String 
    Dim properties As Office.DocumentProperties
    properties = CType(Me.CustomDocumentProperties, Office.DocumentProperties)

    Dim prop As Office.DocumentProperty

    For Each prop In properties
        If prop.Name = propertyName Then 
            Return prop.Value.ToString()
        End If 
    Next 

    Return Nothing 
End Function

Attempting to access the Value property for undefined properties raises an exception.

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