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API > API/Plugins > API/Plugins/NiagaraEditor > API/Plugins/NiagaraEditor/ViewModels > API/Plugins/NiagaraEditor/ViewModels/HierarchyEditor
Inheritance Hierarchy
- TSharedFromThis
- FTickableEditorObject
- FNiagaraHierarchyItemViewModelBase
- FNiagaraHierarchyItemViewModel
- FNiagaraAssignmentInputViewModel
- FNiagaraFunctionViewModel
- FNiagaraHierarchyEmitterPropertiesViewModel
- FNiagaraHierarchyEventHandlerPropertiesViewModel
- FNiagaraHierarchyEventHandlerViewModel
- FNiagaraHierarchyPropertyViewModel
- FNiagaraHierarchyRendererViewModel
- FNiagaraHierarchySimStagePropertiesViewModel
- FNiagaraHierarchySimStageViewModel
- FNiagaraHierarchyUserParameterViewModel
- FNiagaraModuleInputViewModel
References
| Module | NiagaraEditor |
| Header | /Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/HierarchyEditor/NiagaraHierarchyViewModelBase.h |
| Include | #include "ViewModels/HierarchyEditor/NiagaraHierarchyViewModelBase.h" |
Syntax
struct FNiagaraHierarchyItemViewModel : public FNiagaraHierarchyItemViewModelBase
Constructors
| Type | Name | Description | |
|---|---|---|---|
 |
FNiagaraHierarchyItemViewModel
(
UNiagaraHierarchyItem* InItem, |
Destructors
| Type | Name | Description | |
|---|---|---|---|
  |
Overridden from FNiagaraHierarchyItemViewModelBase
| Type | Name | Description | |
|---|---|---|---|
  |
FCanPerformActionResults | Should return true if draggable. | |
  |
FCanPerformActionResults | CanDropOnInternal
(
TSharedPtr< FNiagaraHierarchyItemViewModelBase >, |
Should return true if the given drag drop operation is allowed to succeed. |
   |
bool | Needs to be true in order to allow drag & drop operations to parent items to this item | |
  |
FCanPerformActionResults | Should return true if properties are supposed to be editable & needs to be true if typical operations should work on it (renaming, dragging, deleting etc.) | |
  |
void | OnDroppedOnInternal
(
TSharedPtr< FNiagaraHierarchyItemViewModelBase >, |
Override this to handle drop-on logic. |