Returns a set accessor that is associated with this XamlMember.
Assembly: System.Xaml (in System.Xaml.dll)
The default implementation interprets UnderlyingMember as PropertyInfo and returns the value of PropertyInfo.GetSetMethod (with the parameter set to true), which means that the returned method can be nonpublic. This can result in null for certain cases, including cases where there is no such accessor, or the member is not a property.
This method is invoked when a caller gets a value from UnderlyingSetter on an associated XamlMemberInvoker.Override this method if you want to report uniform results for an entire XamlMember derived class, or if you have specialized metadata available to determine this on a per-case basis. Make sure to implement LookupUnderlyingGetter, , and LookupUnderlyingMember so that they all return correlated results.