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 Microsoft.Office.Interop.Excel.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.
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