I am using this code to add a feature from GeoDatabase dataset to an open MXD file
mxd = arcpy.mapping.MapDocument(r"C:\Temp\Streets.mxd")
df = arcpy.mapping.ListDataFrames(mxd, "Layers")
targetGroupLayer = arcpy.mapping.ListLayers(mxd, "Main", df)
addLayer = arcpy.mapping.Layer(r"C:\Data\NetMap.gdb\Streets\OneWay")
arcpy.mapping.AddLayerToGroup(df, targetGroupLayer, addLayer, "BOTTOM")
This is somehow adding the `OneWay` feature class to the `Main` Group Layer at `Streets.mxd` but I have to close the map and reopen it to see the data there.
I tried to refresh the TOC and Active view like (As it work in IDE inside the Current Map)
but it is not doing anything with stand-alone script and MXD. Can you please let me know if there is a way to do this?