private async void OnAddNewCategory(object obj)
{
IsBusy = true;
try
{
// Thuc hien cong viec tai day
var newCate = new VisualCategoryModel
{
Id = Guid.NewGuid().ToString(),
CategoryName = NewCategoryNameBindProp,
Status = Status.New
};
ListCategoryBindProp.Add(newCate);
NewCategoryNameBindProp = string.Empty;
}
catch (Exception e)
{
await ShowError(e);
}
finally
{
IsBusy = false;
}
}
private async void OnSave(object obj)
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
// Thuc hien cong viec tai day
if (IsEditing) //neu dang o che do chinh sua
{
var categoryLogic = new CategoryLogic(_dbContext);
// Kiem tra them xoa sua
foreach (var category in ListCategoryBindProp)
{
switch (category.Status)
{
case Status.New:
var newCategory = new Category
{
Id = category.Id,
CategoryName = category.CategoryName
};
await categoryLogic.CreateAsync(newCategory, false);
break;
case Status.Normal:
break;
case Status.Modified:
var modCategory = new Category
{
Id = category.Id,
CategoryName = category.CategoryName
};
await categoryLogic.UpdateAsync(modCategory, false);
break;
case Status.Deleted:
break;
default:
break;
}
MessagingCenter.Send(category, Messages.CATEGORY_MESSAGE);
}
foreach (var cate in _listDeleted)
{
cate.Status = Status.Deleted;
await categoryLogic.DeleteAsync(cate.Id, false);
MessagingCenter.Send(cate, Messages.CATEGORY_MESSAGE);
}
//neu co nhap category moi thi tao roi quay ve
if (!string.IsNullOrWhiteSpace(NewCategoryNameBindProp))
{
var newCate = new Category
{
Id = Guid.NewGuid().ToString(),
CategoryName = NewCategoryNameBindProp,
};
var newVsCate = new VisualCategoryModel
{
Id = newCate.Id,
CategoryName = newCate.CategoryName,
Status = Status.New
};
await categoryLogic.CreateAsync(newCate, false);
ListCategoryBindProp.Add(newVsCate);
MessagingCenter.Send(newCate, Messages.CATEGORY_MESSAGE);
}
await _dbContext.SaveChangesAsync().ConfigureAwait(false);
await NavigationService.GoBackAsync();
}
else // neu dang o che do binh thuong
{
var categoryLogic = new CategoryLogic(_dbContext);
// Kiem tra them moi
foreach (var category in ListCategoryBindProp)
{
switch (category.Status)
{
case Status.New:
var newCategory = new Category
{
Id = category.Id,
CategoryName = category.CategoryName,
};
await categoryLogic.CreateAsync(newCategory, false);
MessagingCenter.Send(category, Messages.CATEGORY_MESSAGE);
category.Status = Status.Normal;
break;
case Status.Normal:
break;
case Status.Modified:
break;
case Status.Deleted:
break;
}
}
// neu khong nhap gi
if (string.IsNullOrWhiteSpace(NewCategoryNameBindProp))
{
//neu co chon thi tra ve ten category
if (SelectedCategoryBindProp != null)
{
//truyen ten category ve trang tao item
var param = new NavigationParameters();
param.Add(Keys.CATEGORY, SelectedCategoryBindProp);
await _dbContext.SaveChangesAsync().ConfigureAwait(false);
await NavigationService.GoBackAsync(param);
}
else
{
await _dbContext.SaveChangesAsync().ConfigureAwait(false);
return;
}
}
else // tao moi
{
var newCate = new Category
{
Id = Guid.NewGuid().ToString(),
CategoryName = NewCategoryNameBindProp,
};
var newVsCate = new VisualCategoryModel
{
Id = newCate.Id,
CategoryName = newCate.CategoryName,
Status = Status.New
};
await categoryLogic.CreateAsync(newCate, false);
ListCategoryBindProp.Add(newVsCate);
MessagingCenter.Send(newCate, Messages.CATEGORY_MESSAGE);
await _dbContext.SaveChangesAsync().ConfigureAwait(false);
//truyen ten category ve trang tao item
var param = new NavigationParameters();
param.Add(Keys.CATEGORY, newCate);
await NavigationService.GoBackAsync(param);
}
}
}
catch (Exception e)
{
await ShowError(e);
}
finally
{
IsBusy = false;
}
}
