private void LoadFile() { OpenFileDialog ofd = new OpenFileDialog() { Filter = "BMSSV Files|*.bmssv", Title = "Choose BMSSV . . .", RestoreDirectory = true }; if (ofd.ShowDialog() == true) { BMSSVFile bmssv = BMSSVFile.Open(ofd.FileName); LoadedFile = FileModel.FromBMSSV(bmssv); //this.DataContext = LoadedFile; } }