private void ImportProgrameButton_Click(object sender, RoutedEventArgs e) { string programeFilePath; //select file saving path OpenFileDialog openFileDialog = new OpenFileDialog(); openFileDialog.Filter = "Text Files(*.txt)|*.txt|All Files(*.*)|*.*"; DialogResult dialogResult = openFileDialog.ShowDialog(); if (dialogResult == System.Windows.Forms.DialogResult.OK && openFileDialog.FileName != null) { programeFilePath = openFileDialog.FileName; ProgrameFilePathTextBox.Text = programeFilePath; } else { return; } //load programe to ram LoadPrograme(programeFilePath); //initialize NextInstructionTextBlock NextInstructionTextBlock.Text = Decode(ram.Get4Bit(Convert.ToInt32(registers[32].Value))); }