/// <summary>
/// Starts creating a new category and handles
/// error messaging.
/// </summary>
/// <returns>True, if creation succeeded. Otherwise, false.</returns>
public async Task <bool> CreateCategory()
{
try
{
IsBusy = true;
_categoryMatchFinder.ValidateCategoryAcceptanceCriteria(Category.Name, _categories);
await _petCareService.CreateCategory(Category.Name);
return(true);
}
catch (CategoryMatchedException)
{
await _dialogService.ShowNotification("CategoryAlreadyExists_Message", "CategoryAlreadyExists_Title");
return(false);
}
catch (Exception)
{
await _dialogService.ShowGenericServiceErrorNotification();
return(false);
}
finally
{
IsBusy = false;
}
}
private async void OnAddCategory()
{
try
{
// Ask user if category should be created.
var confirmationResult = await
_dialogService.ShowYesNoNotification("CreateCategoryRequestConfirmation_Message",
"CreateCategoryRequestConfirmation_Title");
if (confirmationResult)
{
IsBusy = true;
// Validate category name.
_categoryMatchFinder.ValidateCategoryAcceptanceCriteria(SearchText, Categories);
var category = await _petCareService.CreateCategory(SearchText);
// The created category needs to be added to the view
// and pre-selected so that the user can continue immediately.
Categories.Add(category);
RefreshFilteredList(category);
SelectedCategory = category;
}
}
catch (CategoryMatchedException)
{
await _dialogService.ShowNotification("CategoryAlreadyExists_Message", "CategoryAlreadyExists_Title");
}
catch (Exception)
{
await _dialogService.ShowGenericServiceErrorNotification();
}
finally
{
IsBusy = false;
}
}