private void AbrirArchivo() { OpenFileDialog openDialog = new OpenFileDialog(); openDialog.Filter = "txt files (*.txt)|*.txt"; string cad = Application.StartupPath; cad = cad.Replace("\\bin\\Debug", ""); openDialog.InitialDirectory = cad; openDialog.FilterIndex = 2; openDialog.RestoreDirectory = true; if (openDialog.ShowDialog() == DialogResult.OK && openDialog.FileName.Length > 0) { ruta = openDialog.FileName; AreaDeEscritura.LoadFile(openDialog.FileName, RichTextBoxStreamType.PlainText); } }