In mapguide2011, we save redline as .gml file. Since in AIMS2013, we save redline as a .sdf file which is a SQL Server Compact Edition of Database File, I cannot open this file in Visual Studio2010. Upload a saved redline file to the map is useful in reality.But I noticed no matter how features I draw, all the sdf files are all same size(350kb).My question is how can I save and upload this file to my map? Probably I didn't do the correct steps. Thank you.