public void Add(string categoryName)
{
try
{
if (categoryName == null || categoryName == "")
{
throw new ArgumentNullException();
}
TaskСategory taskCategory = new TaskСategory()
{
Name = categoryName
};
context.TaskСategories.Create(taskCategory);
context.SaveChanges();
}
catch (Exception)
{
throw;
}
}
public void Edit(int categoryId, string categoryName)
{
try
{
if (categoryId <= 0 || categoryName == null || categoryName == "")
{
throw new ArgumentNullException();
}
TaskСategory taskCategory = new TaskСategory()
{
Id = categoryId,
Name = categoryName
};
context.TaskСategories.Update(taskCategory);
context.SaveChanges();
}
catch (Exception)
{
throw;
}
}
public void Delete(int id)
{
try
{
if (id <= 0)
{
throw new ArgumentNullException();
}
TaskСategory taskСategory = context.TaskСategories.GetAll().FirstOrDefault(c => c.Id == id);
if (taskСategory == null)
{
throw new ArgumentNullException();
}
context.TaskСategories.Delete(taskСategory);
context.SaveChanges();
}
catch (Exception)
{
throw;
}
}
