Thread: String Replace Function

I have a need to merge two rtf files and have discovered its possible (a much simpler way than I've been seeing from others and codeproject) by appending the contents of file B to file A but before File A's closing }. I've done some testing to see if I could output File A to a test file minus the last } in the file, so I could than write in File B plus the closing } for file A, but the string replace function isnt working for me:

Code:

            RichTextBox rtbox1 = new RichTextBox;
            OpenFileDialog ofd = new OpenFileDialog;
            with ofd
            {
                .FileName = "";
                .Filter = "Rich Text Format|*.rtf";
                if (.ShowDialog == DialogResult.OK)
                {
                    rtbox1.LoadFile(.FileName);
                    System.IO.StreamWriter out = System.IO.File.CreateText("Temp.rtf");
                    out.WriteLine(rtbox1.Rtf.ToString.Replace(rtbox1.Rtf.ToString.LastIndexOf("}"), "@"));
                    out.Close();
                }
            }

Please ignore any syntax errors besides the line I'm having trouble with (I converted it from VB)

The problem to be specific is with this line: out.WriteLine(rtbox1.Rtf.ToString.Replace(rtbox1.R tf.ToString.LastIndexOf("}"), "@"))

In the example I'm just testing it by replacing the last } with a @ but ideally I'd just want to remove it.