XamlMemberInvoker.SetValue(Object, Object) Method
Definition
Important
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Sets a value of the relevant property on an instance.
public:
virtual void SetValue(System::Object ^ instance, System::Object ^ value);
public virtual void SetValue (object instance, object value);
abstract member SetValue : obj * obj -> unit
override this.SetValue : obj * obj -> unit
Public Overridable Sub SetValue (instance As Object, value As Object)
Parameters
- instance
- Object
An instance of the owner type for the member.
- value
- Object
The property value to set.
Exceptions
instance
is null
.
Invoked this method on a XamlMemberInvoker that is based on an unknown XamlMember.
-or-
Invoked this method on a read-only member.
-or-
UnderlyingSetter is null
.
Notes to Inheritors
The base implementation includes a call to the internal helper ThrowIfUnknown
. This helper always throws for cases where a XamlMemberInvoker is based on an unknown XamlMember, which includes cases where the UnderlyingMember of the XamlMember is null
.
The base implementation throws if UnderlyingSetter is null
.
For static properties (IsStatic is true
per UnderlyingSetter) the default implementation calls Invoke(Object, Object[]) on UnderlyingSetter passing null
as the first parameter and packaging instance
and value
as the second parameter. For non-static properties, it calls Invoke(Object, Object[]) and forwards instance
as first parameter and value
as second parameter.
Applies to
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