public EventToCommandBehaviorPageViewModel(INavigationService navigationService)
{
#region 相依性服務注入的物件
_navigationService = navigationService;
#endregion
#region 頁面中綁定的命令
MainCategoryChangeCommand = new DelegateCommand(() =>
{
if (string.IsNullOrEmpty(SelectedMainCategory) == false)
{
SubCategoryList.Clear();
}
for (int i = 0; i < 50; i++)
{
SubCategoryList.Add($"{SelectedMainCategory} - {i}");
}
});
#endregion
#region 事件聚合器訂閱
#endregion
}
public MainPageViewModel()
{
MainCategoryChangeCommand = new DelegateCommand(() =>
{
if (string.IsNullOrEmpty(SelectedMainCategory) == false)
{
SubCategoryList.Clear();
}
for (int i = 0; i < 50; i++)
{
SubCategoryList.Add($"{SelectedMainCategory} - {i}");
}
});
CustMainCategoryChangeCommand = new DelegateCommand(() =>
{
if (string.IsNullOrEmpty(CustSelectedMainCategory) == false)
{
CustSubCategoryList.Clear();
}
for (int i = 0; i < 50; i++)
{
CustSubCategoryList.Add($"{CustSelectedMainCategory} - {i}");
}
});
}
public MainPageViewModel(INavigationService navigationService)
{
#region 相依性服務注入的物件
_navigationService = navigationService;
#endregion
#region 頁面中綁定的命令
變更工作名稱Command = new DelegateCommand(() =>
{
fooMyTask.Name = $"現在時間:{DateTime.Now.ToString()}";
});
MainCategoryChangeCommand = new DelegateCommand(() =>
{
SubCategoryList.Clear();
for (int i = 0; i < 50; i++)
{
SubCategoryList.Add($"{SelectedMainCategory} - {i}");
}
});
使用EventToCommandBehaviorCommand = new DelegateCommand(async() =>
{
await _navigationService.NavigateAsync("EventToCommandBehaviorPage");
});
#endregion
#region 事件聚合器訂閱
#endregion
}
/// <summary>
/// Method to Get the Product Structures(Hierachie) to fill the Category and Subcategory Combobox
/// </summary>
public void GetProductStructure()
{
if (CategoryList.Count() > 0)
{
CategoryList.Clear();
}
if (SubCategoryList.Count() > 0)
{
SubCategoryList.Clear();
}
using (var db = new DataSmartDBContext())
{
var structure = db.ProductStructure.ToList();
if (structure != null)
{
foreach (var d in structure)
{
CategoryList.Add(d.Category_1);
SubCategoryList.Add(d.Category_2);
}
CategoryList = CategoryList.Distinct().ToList();
SubCategoryList = SubCategoryList.Distinct().ToList();
}
}
}
/// <summary>
/// 获取二级目录
/// </summary>
/// <param name="index"></param>
public void GetSubCategories(int parentId)
{
SubCategoryList.Clear();
foreach (var item in categoryList)
{
if (item.parentId == parentId)
{
SubCategoryList.Add(item);
}
}
}
public MainPageViewModel(INavigationService navigationService)
{
this.navigationService = navigationService;
MainCategoryChangeCommand = new DelegateCommand(() =>
{
if (string.IsNullOrEmpty(SelectedMainCategory) == false)
{
SubCategoryList.Clear();
}
for (int i = 0; i < 50; i++)
{
SubCategoryList.Add($"{SelectedMainCategory} - {i}");
}
});
}
