STextComboBox & SComboBox

//简单智能

SNew(STextComboBox).ContentPadding(5).OptionsSource(&Options).InitiallySelectedItem(Options[0]).OnSelectionChanged(this, &FEditorModeTestEdModeToolkit::OnPresetChanged)

//选择改变后的方法

voidFEditorModeTestEdModeToolkit::OnPresetChanged(TSharedPtr<FString> NewSelection, ESelectInfo::TypeSelectInfo)

{

       if (SelectInfo != ESelectInfo::Direct)

       {

              FString const NewPresetName = *NewSelection.Get();

              for (int i=0;i < Options.Num();i++)

              {

                     if (*Options[i] == NewPresetName)

                     {

                           

                     }

              }

                     

       }

}

//灵活复杂

SNew(SComboBox<FComboItemType>)

                                  .ContentPadding(5)

                                  .OptionsSource(&Options)

                                  .InitiallySelectedItem(Options[0])