XMLNode.BeforeDelete Event

Occurs when the user deletes an XMLNode control from the document, before the control is deleted.

Namespace:  Microsoft.Office.Tools.Word
Assembly:  Microsoft.Office.Tools.Word (in Microsoft.Office.Tools.Word.dll)

Syntax

'Declaration
Event BeforeDelete As NodeInsertAndDeleteEventHandler

event NodeInsertAndDeleteEventHandler BeforeDelete

Remarks

If the InUndoRedo parameter is true, you should not change the XML in the document.

Examples

The following code example demonstrates event handlers for the AfterInsert and BeforeDelete events. The code displays a message box before an XMLNode is deleted from the document and after an XMLNode is added to the document. The example also uses the RemoveChild method to delete a node and programmatically raise the BeforeDelete event. This example assumes that the current document contains an XMLNode named CustomerNode that contains a child node named CustomerDateNode.

Private Sub XMLNodeInsertAndDelete()
    Me.CustomerNode.RemoveChild(Me.CustomerDateNode.InnerObject)
End Sub

Private Sub XMLNode_BeforeDelete(ByVal sender As Object, _
    ByVal e As Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs) _
    Handles CustomerDateNode.BeforeDelete

    Dim tempNode As Microsoft.Office.Tools.Word.XMLNode = _
        CType(sender, Microsoft.Office.Tools.Word.XMLNode)
    If e.InUndoRedo Then
        MsgBox(tempNode.BaseName & " element is about to be " & _
            "deleted as a result of an undo or redo operation.")
    Else
        MsgBox(tempNode.BaseName & " element is about to be " & _
            "deleted.")
    End If
End Sub

Private Sub XMLNode_AfterInsert(ByVal sender As Object, _
    ByVal e As Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs) _
    Handles CustomerDateNode.AfterInsert

    Dim tempNode As Microsoft.Office.Tools.Word.XMLNode = _
        CType(sender, Microsoft.Office.Tools.Word.XMLNode)

    If e.InUndoRedo Then
        MsgBox(tempNode.BaseName & " element was " & _
            "inserted as a result of an undo or redo operation.")
    Else
        MsgBox(tempNode.BaseName & " element was inserted.")
    End If
End Sub

private void XMLNodeInsertAndDelete()
{
    this.CustomerDateNode.AfterInsert +=
        new Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventHandler(
        XMLNode_AfterInsert);

    this.CustomerDateNode.BeforeDelete +=
        new Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventHandler(
        XMLNode_BeforeDelete);

    this.CustomerNode.RemoveChild(this.CustomerDateNode.InnerObject);
}

void XMLNode_BeforeDelete(object sender, 
    Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs e)
{
    Microsoft.Office.Tools.Word.XMLNode tempNode =
        (Microsoft.Office.Tools.Word.XMLNode)sender;

    if (e.InUndoRedo)
    {
        MessageBox.Show(tempNode.BaseName + " element is about to be " +
            "deleted as a result of an undo or redo operation.");
    }
    else
    {
        MessageBox.Show(tempNode.BaseName + " element is about to be " +
            "deleted.");
    }
}


void XMLNode_AfterInsert(object sender,
    Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs e)
{
    Microsoft.Office.Tools.Word.XMLNode tempNode =
        (Microsoft.Office.Tools.Word.XMLNode)sender;

    if (e.InUndoRedo)
    {
        MessageBox.Show(tempNode.BaseName + " element was " +
            "inserted as a result of an undo or redo operation.");
    }
    else
    {
        MessageBox.Show(tempNode.BaseName + " element was inserted.");
    }
}

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

XMLNode Interface

Microsoft.Office.Tools.Word Namespace