winforms - C# DirectoryNotFoundException was unhandled in Windows 10 machine -

c# application.exe not working in win10,but worked on win7. tried debug in win10 shows me error correct in win7.

using system; using system.windows.forms; using system.io;  namespace windowsformsapplication2 { public partial class form1 : form {     public form1()     {         initializecomponent();          string fullcomputername = environment.machinename;          //create folder path         string createfolderpath = @"c:\\users\\" +fullcomputername+"\\documents\\cheques";          //create file inside of folder         string createtxtfile= createfolderpath + "\\chequefordeposit.txt";          try         {             if(!directory.exists(createfolderpath))             { return; }             directory.createdirectory(createfolderpath);         }         catch { }         { }          if(!file.exists(createtxtfile))         { file.create(createtxtfile); }//the error here     } } } 

when check in win7 pc, creates folder , text file. not in win10. strange.

your try/catch not ensure directory folder exist (may generate exception when try create folder). before creating file, check folder exists. condition incorrect. if folder not exists should return, otherwise create.

 try  {   if(directory.exists(createfolderpath) && !file.exists(createtxtfile))     {         file.create(createtxtfile);        } } 

also check permission issue. e.g. check permissions desktop folder. in windows explorer right click on desktop folder, select properties , there go security tab. should have write permission folder.