Shrinking a LightSwitchV3 project for file transfer


A small LightSwitch solution can take quite some diskspace, ~150MB.

Since the LSv1 beta version, there’s a batch file made by Oscar Agreda for shrinking some redundant folders that Visual Studio creates when building in debug or release.

With the current version of LightSwitch, you have 2 options for cleaning your project: using an update of this batch, or by using the Clean Solution functionality of Visual Studio.


Here’s an update of the script that works with the current version of LightSwitch, having a Desktop and/or a HTML Client:

 rd /q /s Bin\Debug
 rd /q /s Bin\Release
 rd /q /s _Pvt_Extensions

for /d %%p in (*Client) do (
 rd /q /s "%%p\Bin\Debug"
 rd /q /s "%%p\Bin\Release"
 rd /q /s "%%p\obj\Debug"
 rd /q /s "%%p\obj\Release"

for /d %%p in (*Server) do (
 rd /q /s "%%p\Bin\Debug"
 rd /q /s "%%p\Bin\Release"
 rd /q /s "%%p\obj\Debug"
 rd /q /s "%%p\obj\Release"

Remember to close your solution first, then run the script from your LS project folder.
With this script you can shrink the project folder to ~15MB, compressable to 3MB.

Clean Solution

With the first LightSwitch version, cleaning up the solution didn’t work for the LightSwitch project.
The current version has fixed this so you can also remove the redundant build files by cleaning your solution, do this once for each build configuration you used. This also cleans up the build files of additional projects, for instance your RIA Service class library project, which the batch file doesn’t.

After the clean, you can manually delete the _Pvt_Extensions folder.



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