c# - Putting textfile into Listbox using streamreader -

i wondering how can make program read text file , put contents in listbox using streamreader?

 private void button1_click(object sender, eventargs e)     {   }         (streamreader stread = new streamreader("c:\users\tommy\desktop\windowsformsapplication9\windowsformsapplication9\bin\debug\transactions.txt")) {     while (!stread.endofstream)     {         listbox1.items.add(stread.readline());     } 

using file.readalllines

be aware of @ @ beginning of file path. using backslash in string literal must escaped if @ not used.

listbox1.items.addrange(file.readalllines(@"c:\users\tommy\desktop\windowsformsapplication9\windowsformsapplication9\bin\debug\transactions.txt")); 

using streamreader:

        // create instance of streamreader read file.          // using statement closes streamreader.          using (streamreader sr = new streamreader("testfile.txt"))          {             string line;             // read , display lines file until end of               // file reached.              while ((line = sr.readline()) != null)              {                 listbox1.items.add(line);             }         }