I am trying to write a test to validate if specific column names (headers) exist or not.  I was hoping I could get the object.ColumnCount (which works) then iterate through each column index grabbing the Key property, something like the following:

oObject.GetNAProperty("DisplayLayout.Bands[0].Columns[1].Key")

I cannot get this line to work properly, it is failing, maybe it doesn't like my syntax.  I know the Bands is correct because I can pull property values that are a direct child of Bands[0], I just can't seem to get inside the Columns collection.

Thanks