XmlForm.MergeForm method (XPathNavigator)

Office 2013 and later

Merges the current form with the target form specified in the node returned by the XPathNavigator passed to the method.

Namespace:  Microsoft.Office.InfoPath
Assembly:  Microsoft.Office.InfoPath (in Microsoft.Office.InfoPath.dll)

Public MustOverride Sub MergeForm ( _
	target As XPathNavigator _
Dim instance As XmlForm
Dim target As XPathNavigator



Type: System.Xml.XPath.XPathNavigator

An XPathNavigator that provides the XML data to merge into the current form.


The MergeForm method was called from the Loading event.


The parameter passed to this method is a null reference (Nothing in Visual Basic).


The parameter passed to this method is not valid. For example, it is of the wrong type or format.

The MergeForm method is equivalent to using the Merge Forms command of the InfoPath editor. The XML data provided by XPathNavigator passed as the target parameter must be valid XML for merging into the current form. If the XML data provided isn't wrapped as an InfoPath form, InfoPath will wrap the data.

This member can be accessed only by forms running in the same domain as the currently open form, or by forms that have been granted cross-domain permissions.

This type or member can be accessed only from code running in forms opened in Microsoft InfoPath Filler.

In the following code example, a System.Xml.XmlDocument object is used to load a form from the specified URL, and then a System.Xml.XPath.XPathNavigator object is positioned at the root of the form to merge. Finally, the XPathNavigator is passed to the MergeForm(System.Xml.XPath.XPathNavigator) method to merge the form into the current form.

Dim pathToFile As String = "C:\FormToMerge\Form1.xml"
Dim FormXML As New XmlDocument

' The form tempate must be Full Trust for the 
' XmlDocument.Load method to work.

Dim nav As XPathNavigator = FormXML.CreateNavigator()

' Merge the root node (the entire document) into the current form.