/// <summary>Open file dialog and load chosen Iris flowers file.</summary> private void LoadFile() { OpenFileDialog fileDialog = new OpenFileDialog { DefaultExt = ".csv", Filter = "Comma Separated Values (*.csv)|*.csv", InitialDirectory = "X:\\Main\\Programming\\C#\\iris-flower-charts\\examples" }; if (fileDialog.ShowDialog() == true) { string path = fileDialog.FileName; Calculator.LoadIrises(path); } else { return; } }