c# - How can I prompt a user to choose a location to save a file? -

in main form have method called savepdfdocument():

private void savepdfdocument() {     pdfwrapper pdfwrapper = new pdfwrapper();     pdfwrapper.createpdf(horizontalpicturescroller1.getpictures(), "pdfdocument.pdf"); } 

as can see, right i'm manually typing in name file. i'd ask user choose save , name give it.

this createpdf() method i'm using above:

public void createpdf(list<system.drawing.image> images, string filename) {     if (images.count >= 1)     {         document document = new document(pagesize.letter);         try         {              // step 2:             // create writer listens document             // , directs pdf-stream file              pdfwriter.getinstance(document, new filestream(filename, filemode.create));              // step 3: open document             document.open();              foreach (var image in images)             {                 itextsharp.text.image pic = itextsharp.text.image.getinstance(image, system.drawing.imaging.imageformat.jpeg);                  if (pic.height > pic.width)                 {                     //maximum height 800 pixels.                     float percentage = 0.0f;                     percentage = 700 / pic.height;                     pic.scalepercent(percentage * 100);                 }                 else                 {                     //maximum width 600 pixels.                     float percentage = 0.0f;                     percentage = 540 / pic.width;                     pic.scalepercent(percentage * 100);                 }                  pic.border = itextsharp.text.rectangle.box;                 pic.bordercolor = itextsharp.text.basecolor.black;                 pic.borderwidth = 3f;                 document.add(pic);                 document.newpage();             }         }         catch (documentexception de)         {             console.error.writeline(de.message);         }         catch (ioexception ioe)         {             console.error.writeline(ioe.message);         }          // step 5: close document         document.close();     } } 

any suggestions?

did take @ savefiledialog?

private void button1_click(object sender, system.eventargs e) {      stream mystream ;      savefiledialog savefiledialog1 = new savefiledialog();       savefiledialog1.filter = "txt files (*.txt)|*.txt|all files (*.*)|*.*"  ;      savefiledialog1.filterindex = 2 ;      savefiledialog1.restoredirectory = true ;       if(savefiledialog1.showdialog() == dialogresult.ok)      {          if((mystream = savefiledialog1.openfile()) != null)          {              // code write stream goes here.              mystream.close();          }      } }