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API > API/Plugins > API/Plugins/NiagaraEditor > API/Plugins/NiagaraEditor/ViewModels > API/Plugins/NiagaraEditor/ViewModels/INiagaraImmutableParameterPanelV-
- INiagaraImmutableParameterPanelViewModel::PreSectionChange()
- FNiagaraSystemToolkitParameterPanelViewModel::PreSectionChange()
References
| Module | NiagaraEditor |
| Header | /Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraParameterPanelViewModel.h |
| Include | #include "ViewModels/NiagaraParameterPanelViewModel.h" |
virtual void PreSectionChange
&40;
const TArray< FNiagaraParameterPanelCategory > & ExpandedItems
&41;