How to: Remove Data from the Data Store When Deleting a Content Control
You can delete a content control by calling the Delete method of the ContentControl object. For example, the following code deletes the content control with the title "MyTitle".
You can also delete a single node by calling the Delete method of the CustomDataXMLNode object that you want to remove. You can delete an entire custom XML part by calling the Delete method of the CustomXMLPart object that you want to remove.
For more information about content controls, see Working with Content Controls.
The objects used in these samples are:
The first code sample creates a content control and sets an XML mapping on a content control.
Build a valid custom XML file, save it to your hard disk drive, and add a data store to the document that contains the information you want to map to.
Suppose the content control is mapped to the following sample custom XML file.
<?xml version="1.0" encoding="utf-8" ?> <tree> <fruit> <fruitType>peach</fruitType> <fruitType>pear</fruitType> <fruitType>banana</fruitType> </fruit> </tree>
Now, suppose the content control is mapped to a <fruitType> node of the previous custom XML part.
Sub AddContentControlAndCustomXMLPart() Dim strTitle As String strTitle = "MyTitle" Dim oContentControl As Word.ContentControl Set oContentControl = ActiveDocument.ContentControls.Add(wdContentControlText) oContentControl.Title = strTitle ActiveDocument.CustomXMLParts.Add ActiveDocument.CustomXMLParts(4).Load ("c:\mySampleCustomXMLFile.xml") Dim strXPath As String strXPath = "tree/fruit/fruitType" oContentControl.XMLMapping.SetMapping strXPath End Sub
The second code sample removes the entire CustomXMLPart object when the content control is deleted.
Private Sub Document_ContentControlBeforeDelete( _ ByVal OldContentControl As ContentControl, _ ByVal InUndoRedo As Boolean) Dim objPart As CustomXMLPart 'Always void changing the Word document surface during undo! If InUndoRedo Then Return End If 'Also delete the part with a root element called 'tree' If OldContentControl.Title = "MyTitle" Then For Each objPart In ActiveDocument.CustomXMLParts If objPart.DocumentElement.BaseName = "tree" Then objPart.Delete End If Next part End If End Sub