c# savefiledialog lock to particular directory? -

this question has answer here:

• c# savefiledialog in specific folder 3 answers

how save files particular directory using savefiledialog in c#. path user should not change directory when savefile dialog opened.

there no direct way (a property keepsamefolder=true example).
option write event handler fileok event , cancel click on save button if folder not 1 like.
cancelling event doesnt't close savefiledialog , user fix error

// declare @ global class level string allowedpath = @"c:\temp";   private void openfiledialog1_fileok(object sender, canceleventargs e) {     if (!path.getdirectoryname(openfiledialog1.filename) == allowedpath )     {         messagebox.show("you should save file in or sub folder of: " + allowedpath);         e.cancel = true;     }             } 

edit: following comment of mr hofman, if allow subfolder of base path choosen should change check inside event handler like

    string userchoice = path.getdirectoryname(openfiledialog1.filename);     if (!userchoice.startswith(allowedpath))     {         messagebox.show("you should save file in folder: " + allowedpath);         e.cancel = true;     }             

however, said in comments above, think using savefiledialog when user has no option on he/she wants save file not choice. if folder predefined prepare reusable inputform asks file name , build full filename in code.