public MainVM()
{
ClassClassrooms = XMLRead.ReadClassroom(Path.ClassroomXml).ToArray();
ClassGroups = XMLRead.ReadGroup(Path.GroupXml).ToArray();
ClassTeachers = XMLRead.ReadTeacher(Path.TeacherXml).ToArray();
ClassSubjects = XMLRead.ReadSubject(Path.SubjectXml).ToArray();
ClassDepartments = XMLRead.ReadDepartment(Path.DepartmentXml).ToArray();
Data = new ObservableCollection <ObservableCollection <DropItem> >();
for (int i = 0; i < maxpair; i++)
{
Data.Add(new ObservableCollection <DropItem>());
}
openCommand = this.Factory.CommandSync(Open);
saveToExcel = this.Factory.CommandSync(ExportToExcel);
selectCommand = this.Factory.CommandSyncParam <int>(Transform);
closeWinCommand = this.Factory.CommandSync(Close);
clearCommand = this.Factory.CommandSync(Clear);
index = this.Factory.Backing <RowColumnIndex?>(nameof(Index), null);
departmentIndex = this.Factory.Backing <int>(nameof(DepartmentIndex), 0);
Columns = new ObservableCollection <string>();
Rows = new ObservableCollection <PairInfo>();
Init();
}