Urgent! group objects in Excel
 

I have a textbox and an image. I would like to group them together as one
shape object. How do I do that with C# and office interop?

VB equivalent is :
ActiveSheet.Shapes.Range(Array("MyText", "MyPicture")).Select
Selection.ShapeRange.Group.Select

What's the equivalent if this with office interop and C# ?
Please help!