# Access the original geoprojection after the shapefile was reprojected?

**URL:** <https://mapwindow.discourse.group/t/access-the-original-geoprojection-after-the-shapefile-was-reprojected/1665>\
**Category:** MapWinGIS\
**Created:** [November 14, 2023, 9:52am UTC](https://mapwindow.discourse.group/t/access-the-original-geoprojection-after-the-shapefile-was-reprojected/1665 "2023-11-14T09:52:42Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![AlexHsu007](https://avatars.discourse-cdn.com/v4/letter/a/c5a1d2/32.png) [@AlexHsu007](https://mapwindow.discourse.group/u/AlexHsu007)\
**Post date:** [November 14, 2023, 9:52am UTC](https://mapwindow.discourse.group/t/access-the-original-geoprojection-after-the-shapefile-was-reprojected/1665/1 "2023-11-14T09:52:42Z")

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Hi there:  
A shapefile layer was added to the current map, and it was reprojected to the map’s geoprojection. When I tried to access the shapefile’s Geoprojection property, I got the map’s geoprojection instead of the shapefile’s. So the problem is how do I access the original geoprojection of the shapefile. I am using MapWinGIS v5.3.0 in C#.  
By the way, if a shapefile layer in the current map is reprojected, the FileName property of the shapefile will be empty string. How to retrieve its source filename?  
Thanks, guys!