private void ViewModelChanged(object sender, DependencyPropertyChangedEventArgs e) { this.viewModel_ = this.DataContext as Excel_hifive_stepDown_kiViewModel; this.viewModel_.PropertyChanged += new System.ComponentModel.PropertyChangedEventHandler(viewModel_PropertyChanged); this.ScheduleDataGrid_.ItemsSource = viewModel_.SubScheduleDataList_; GenInformationPanel_.DataContext = this.viewModel_; //EffectiveDatePicker_.DataContext = this.viewModel_; }