how decompile of exe to get actual source of complete project?

Hello Javed,

Please refer below link.

You can use ILSpy it is the open-source .NET assembly browser and decompiler. 

https://apps.microsoft.com/store/detail/ilspy/9MXFBKFVSQ13?hl=en-in&gl=in&rtc=1

Or check https://stackoverflow.com/a/273248/3054222

Thanks

Naimish