private bool TryAdd()
{
string name = this.txtName.Text.Trim();
if (string.IsNullOrEmpty(name))
{
MessageBox.Show("食材类别的名称不能为空！");
return(false);
}
IDictionary <Guid, IngredientCategory> ingredientDict = IngredientCategory.GetAll();
var result = from item in ingredientDict.Values
where item.Name == this.newCatetory.Name
select item;
if (result.Count() > 0)
{
MessageBox.Show(string.Format("已存在名为【{0}】的食材类别！", name), "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return(false);
}
for (int i = 0; i < this.lstCategory.Items.Count; i++)
{
var obj = this.lstCategory.Items[i] as IngredientCategory;
obj.Priority = i;
}
ingredientDict.Add(this.newCatetory.Id, this.newCatetory);
IngredientCategory.SaveDatabase(typeof(IngredientCategory).Name);
return(true);
}
private bool TryAdd()
{
for (int i = 0; i < this.lstCategory.Items.Count; i++)
{
var obj = this.lstCategory.Items[i] as IngredientCategory;
obj.Priority = i;
}
IngredientCategory.SaveDatabase(typeof(IngredientCategory).Name);
return(true);
}
private void btnDelete_Click(object sender, EventArgs e)
{
var selectedItem = this.lstCategory.SelectedItem;
if (selectedItem != null)
{
if (MessageBox.Show(string.Format("是否确认删除【{0}】类别？（这将同步删除使用此类别的食材和使用这些食材的菜品！）", selectedItem), "询问", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.Yes)
{
// 删除category
var category = selectedItem as IngredientCategory;
IDictionary <Guid, IngredientCategory> categoryDict = IngredientCategory.GetAll();
categoryDict.Remove(category.Id);
// 删除关联到category的食材ingredient
IDictionary <Guid, Ingredient> ingredientDict = Ingredient.GetAll();
var toBeDeletedIngredients = (from item in ingredientDict.Values
where item.Category.Id == category.Id
select item.Id).ToList();
foreach (var id in toBeDeletedIngredients)
{
ingredientDict.Remove(id);
}
// 删除关联到食材ingredient的菜品dish
IDictionary <Guid, Dish> dishDict = Dish.GetAll();
var toBeDeletedDishes = new List <Dish>();
foreach (var dish in dishDict.Values)
{
foreach (var weightedIngredient in dish.WeightedIngredientList)
{
if (toBeDeletedIngredients.Contains(weightedIngredient.Ingredient.Id))
{
toBeDeletedDishes.Add(dish);
break;
}
}
}
foreach (var dish in toBeDeletedDishes)
{
dishDict.Remove(dish.Id);
}
IngredientCategory.SaveDatabase(typeof(IngredientCategory).Name);
Ingredient.SaveDatabase(typeof(Ingredient).Name);
Dish.SaveDatabase(typeof(Dish).Name);
this.lstCategory.Items.Remove(selectedItem);
MessageBox.Show("已删除此类别！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
private bool TryAdd()
{
string name = this.txtName.Text.Trim();
if (string.IsNullOrEmpty(name))
{
MessageBox.Show("食材类别的名称不能为空！");
return(false);
}
this.category.Name = this.txtName.Text.Trim();
IngredientCategory.SaveDatabase(typeof(IngredientCategory).Name);
return(true);
}