How to get TMap pair's value?

Here all code:
http://pastebin.com/WUeFkTS4

This is struct property case.

 if (UStructProperty* Prop = Cast<UStructProperty>(Property))
 {
     void* ptr = Prop->ContainerPtrToValuePtr<void>(ValuePtr);
     return _IterateStruct(ptr, Prop->Struct);
 }