XamlTypeInvoker.GetItems(Object) Method
Definition
Important
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Returns an IEnumerator object representing the set of items.
public:
virtual System::Collections::IEnumerator ^ GetItems(System::Object ^ instance);public virtual System.Collections.IEnumerator GetItems (object instance);abstract member GetItems : obj -> System.Collections.IEnumerator
override this.GetItems : obj -> System.Collections.IEnumeratorPublic Overridable Function GetItems (instance As Object) As IEnumeratorParameters
- instance
- Object
An instance of the type specified by the XamlType used for constructing this XamlTypeInvoker.
Returns
An IEnumerator object, or null.
Exceptions
Invoked this method on a XamlTypeInvoker that is based on an unknown XamlType.
-or-
Invoked this method on a XamlTypeInvoker where the relevant type is not a collection or dictionary.
instance is null.
Notes to Inheritors
The base implementation includes a call to the internal helper ThrowIfUnknown. This helper always throws for cases where a XamlTypeInvoker is based on an unknown XamlType, which includes cases where the UnderlyingType of the XamlType is null.
The base implementation does not necessarily use its own GetEnumeratorMethod() implementation. First, a cast of instance to IEnumerable is attempted. If this succeeds, a call to GetEnumerator() is made and the method returns that return value. Otherwise, the base implementation uses CLR Invoke(Object, Object[]) to invoke the underlying GetEnumerator method, as obtained from a call to GetEnumeratorMethod() for this XamlTypeInvoker.
