可见性（Windows Phone 7）
抱歉，如果我问一个基本问题！
Customer 类已获取
string Name和int Age在 MainPage.xaml.cs 中我有：
ObervableCollection
客户>客户
MainPage.xaml 中的
<Listbox x:Name = "ListCustomer"
ItemsSources = "{Binding Customers}"/>
<Button x:Name = "Button1" Visibility = "Collapsed"/>
：如何在 MainPage.xaml.cs 中设置 Button1 可见性？
if(ListCustomer == null) <-- 没有数据 Button1 折叠，如果 Listbox （或 Customer - 我不知道） 已获取数据 Button1 可见
//or if(Customers == null)
{
Button1.visibility = visibility.visibled
}
我可以把它放在哪里？
（在“导航至”、“导航自”或“Page_Load”中，某些地方...）
Sorry if I ask a basic question !
Class Customer has got
string Nameandint AgeIn MainPage.xaml.cs I have :
ObervableCollection < Customer > Customers
In MainPage.xaml :
<Listbox x:Name = "ListCustomer"
ItemsSources = "{Binding Customers}"/>
<Button x:Name = "Button1" Visibility = "Collapsed"/>
How can i set Button1 visibility in MainPage.xaml.cs?
if(ListCustomer == null) <-- doesn't have data Button1 is collapsed, if Listbox (or Customer - I don't know)
has got data Button1 is visibled
//or if(Customers == null)
{
Button1.visibility = visibility.visibled
}
Where i can put it ?
(in Navigation To, Navigation From, or Page_Load, some where...)
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或者
上面的代码应该可以帮助您分别使按钮不可见和可见。
最好将其放入
Loaded事件处理程序中。您可以在此处确保所有 UI 元素均已加载。or
The above code should help you make the button invisible and visible respectively.
It would be best if you could put it in the
Loadedevent handler. This is where you can be sure that all the UI elements are loaded.