public MainWindowViewModel()
{
graph = DataReader.BuildGraph();
employees = DataReader.ReadEmployees();
publicationsNames = DataReader.ReadPublicationsNames();
PropertyChanged = null;
SearchForConnections = new RelayCommand(DoSearchForConnections, CanSearchForConnections);
ClearConsole = new RelayCommand(DoClearConsole, CanClearConsole);
ShowEmployeesList = new RelayCommand(DoShowEmployeesList, CanShowEmployeesList);
}