c# - how to copy image from filepiker to app folder windows store apps -

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this code of file picker
need copy image user open app folder. 1 can me please 

private async void button_click(object sender, routedeventargs e)     {          if (windows.ui.viewmanagement.applicationview.value != windows.ui.viewmanagement.applicationviewstate.snapped ||              windows.ui.viewmanagement.applicationview.tryunsnap() == true)         {             windows.storage.pickers.fileopenpicker openpicker = new windows.storage.pickers.fileopenpicker();             openpicker.suggestedstartlocation = windows.storage.pickers.pickerlocationid.pictureslibrary;             openpicker.viewmode = windows.storage.pickers.pickerviewmode.thumbnail;              // filter include sample subset of file types.             openpicker.filetypefilter.clear();             openpicker.filetypefilter.add(".bmp");             openpicker.filetypefilter.add(".png");             openpicker.filetypefilter.add(".jpeg");             openpicker.filetypefilter.add(".jpg");

// open file picker.

        windows.storage.storagefile file = await openpicker.picksinglefileasync();              // file null if user cancels file picker.             if (file != null)             {                 // open stream selected file.                 windows.storage.streams.irandomaccessstream filestream =                     await file.openasync(windows.storage.fileaccessmode.read);

// set image source selected bitmap.`

                windows.ui.xaml.media.imaging.bitmapimage bitmapimage =                     new windows.ui.xaml.media.imaging.bitmapimage();                  bitmapimage.setsource(filestream);                 img.source = bitmapimage;                 this.datacontext = file;               }         }      }

thanks

use storagefile.copyasync, is, file.copyasync. first argument destination storagefolder, e.g. windows.storage.applicationdata.current.localfolder if wanted copy appdata; otherwise you'd need create folder or 1 picker separately.

you might, example, have user choose default folder file picker (configured folders). sure save storagefolder in [windows.storage.accesscache][2] preserve programmatic access future use.


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