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API > API/Plugins > API/Plugins/NiagaraEditor > API/Plugins/NiagaraEditor/Widgets > API/Plugins/NiagaraEditor/Widgets/SItemSelector > API/Plugins/NiagaraEditor/Widgets/SItemSelector/FArguments
References
| Module | NiagaraEditor |
| Header | /Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/Widgets/SItemSelector.h |
| Include | #include "Widgets/SItemSelector.h" |
WidgetArgsType & PreserveExpansionOnRefresh
&40;
bool InArg
&41;
Remarks
Whether or not to preserve the expansion state when refresh is called. If true, OnGetKeyForCategory and OnGetKeyForSection must be set if Categories or Sections are used, respectively.