public override void OnPageLoad(object sender, EventArgs e)
{
base.OnPageLoad(sender, e);
this.VM = new GroupBuyingCategoryVM();
this.facade = new GroupBuyingFacade(this);
facade.GetAllGroupBuyingCategory((s, a) =>
{
if (a.FaultsHandle())
{
return;
}
this.DataGrid.ItemsSource = new ObservableCollection <GroupBuyingCategoryInfo>(a.Result);
});
}