public StaffViewModel()
{
Title = "Staff Management";
StaffMembers = new ObservableCollection <StaffModel>();
LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand());
MessagingCenter.Subscribe <NewStaffPage, StaffModel>(this, "AddStaff", async(obj, item) =>
{
var newItem = item as StaffModel;
StaffMembers.Add(newItem);
await StaffService.AddItemAsync(newItem);
});
MessagingCenter.Subscribe <StaffDetailPage, StaffModel>(this, "UpdateStaff", async(obj, item) =>
{
var updatedItem = item as StaffModel;
await StaffService.UpdateItemAsync(updatedItem);
});
MessagingCenter.Subscribe <StaffDetailPage, StaffModel>(this, "DeleteStaff", async(obj, item) =>
{
var deleteItem = item as StaffModel;
await StaffService.DeleteItemAsync(deleteItem.StaffId);
});
}