Question

我有所附财产:

public static readonly DependencyProperty DataTableProperty =
    DependencyProperty.RegisterAttached("DataTable",
    typeof(MetadataTable),
    typeof(TabControl),
    new PropertyMetadata(DataTableChanged));

我这样做,一切都正确:

<sdk:TabControl view:DataBrowserHelper.DataTable="{Binding Path=Table}" />

如果将财产所有权人改换为另一种类型,则所有物仍然正确。我认为,所有权人Type确定可归属该财产的类型。因此,我错了吗? 谁是所有人? 我如何限制财产的使用(例如,它只能附属于TabControl或数据Grid)?

Answer 1

ownerType is the type of the class that owns the property. For example, if you are declaring this property in a class named MyClass , the ownerType of this DependencyProperty will be MyClass.

限制使用是复杂的,因为你的方案将知道你只把在Runtime的接口上重新附于DP的那类内容,因此,你手里的空壳是正确的。

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