I'm using a extensive Word macro for years now. I'm trying to convert this to VB VSTO, but the object model gives lots of problems. There are no 'Default properties' defined: Using fi. "Selection.Style = "Normal"' fails. The properties are not shown at the drop down and you have to gues the property-name icq. "NameLocal". The most severe one is creating an instance of 'Word.Shape' named 'DiaShape', and then defining another 'Word.Shape' with "Dim GrayBox As Word.Shape", immediately corrupts reference to the 'DiaShape'.

Why is my reference to an object instance destroyed

Hub van de Laar 0

I'm using a extensive Word macro for years now. I'm trying to convert this to VB VSTO, but the object model gives lots of problems.

There are no 'Default properties' defined: Using fi. "Selection.Style = "Normal"' fails.
The properties are not shown at the drop down and you have to gues the property-name icq. "NameLocal".
The most severe one is creating an instance of 'Word.Shape' named 'DiaShape', and then defining another 'Word.Shape' with "Dim GrayBox As Word.Shape", immediately corrupts reference to the 'DiaShape'.

Hub van de Laar 0

Simplefied the involved routine to show the problem:

    Public Sub ApplyShapes()
        Dim Diagram As InlineShape, DiaShape As Word.Shape
        Diagram = WordAppl.Selection.InlineShapes(1)
        DiaShape = Diagram.ConvertToShape()

        Dim WhiteBox As Word.Shape
        WhiteBox = WordAppl.ActiveDocument.Shapes.AddShape(MsoAutoShapeType.msoShapeRectangle,
                    DiaShape.Left + ((DiaShape.Width - DiaShape.Height) / 2), DiaShape.Top, DiaShape.Height, DiaShape.Height)
    End Sub

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Why is my reference to an object instance destroyed