C++ Sorting a string and inserting text.

[Gibson_Junk]

I have a program like this that I made.

outfile.open ("ImportUsers.txt");

 if (infile.good())
 {
  while (!infile.eof())
   {
    infile >> First >> Rank >> Last;// Saves the line in STRING.
    cout << "dn: CN=" << First << " " << Rank << " " << Last << dcClass << endl;

As you can see it reads the first line of the file and breaks it at each white space into a separate string. I wanted to transform this into a win forms app but I have run into a issue.

public: System::Void convertToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e) {
			StringBuilder^ sb = gcnew StringBuilder();
			Convertor^ form2 = gcnew Convertor();
			if(listBox1->Items->Count > 0){
				for (int i = 0; i < listBox1->Items->Count; i++){
					String^ temp = listBox1->Items[i]->ToString();
					sb->AppendFormat("{0}", temp)->AppendLine();
				}
				sb->Length = sb->Length - 1;
				form2->textBox1->Text = sb->ToString();
				form2->ShowDialog();
			} else {
				MessageBox::Show("You must open a file before converting it!", "Error");
			}
		}

How can I do that same thing here? I am lost.