/// <summary>
/// Intializes and intance of SessionCostsViewModel.
/// </summary>
/// <param name="controller">The controller of the view model.</param>
public SessionCostsViewModel(ISessionCostsController controller)
{
if (controller == null)
{
throw new ArgumentNullException("controller");
}
Controller = controller;
PopulateCosts(null);
CostNewCommand = new RelayCommand((parameter) => NewCost(), (parameter) => !IsBusy);
CostSaveCommand = new RelayCommand((parameter) => SaveCost(), (parameter) => !IsBusy && !HasError && IsDataModified);
CostCancelCommand = new RelayCommand((parameter) => CancelCost(), (parameter) => !IsBusy && IsDataModified);
CostDeactivateCommand = new RelayCommand((parameter) => DeactivateCost(), (parameter) => !IsBusy && SelectedCost != null);
CloseCommand = new RelayCommand((parameter) => Close((CancelEventArgs)parameter));
// Listen for changes to the controller.
PropertyChangedEventManager.AddListener(Controller, this, string.Empty);
Controller.RequestCostsCompleted += OnRequestCostsCompleted;
Controller.RequestSaveCostCompleted += OnRequestSaveCostCompleted;
}
/// <summary>
/// Intializes an instance of a SessionCostsViewModel
/// </summary>
/// <param name="controller">The view models controller.</param>
public SelectSessionCostsViewModel(ISessionCostsController controller, Summary summary)
{
if (controller == null)
{
throw new ArgumentNullException("controller");
}
else if (summary == null)
{
throw new ArgumentNullException("summary");
}
Controller = controller;
Summary = summary;
CostIncludeCommand = new RelayCommand((parameter) => OnCostInclude(), (parameter) => !IsBusy && HasSelectedCost());
CostExcludeCommand = new RelayCommand((parameter) => OnCostExclude(), (parameter) => !IsBusy && HasSelectedChoosenCost());
CostSaveCommand = new RelayCommand((parameter) => OnCostSave(), (parameter) => !IsBusy && IsDataModified);
CostClearCommand = new RelayCommand((parameter) => OnCostClear(), (parameter) => !IsBusy && ChoosenCosts != null && ChoosenCosts.Count > 0);
CostCancelCommand = new RelayCommand((parameter) => OnCostCancel(), (parameter) => !IsBusy);
CostCloseCommand = new RelayCommand((parameter) => OnCostClose((CancelEventArgs)parameter));
PopulateCosts();
}
