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API > API/Runtime > API/Runtime/Slate > API/Runtime/Slate/SListView > API/Runtime/Slate/SListView/FWidgetGenerator
Description
Called at the beginning of the generation pass. Begins tracking of which widgets were in view and which were not (so we can clean them up)
| Name | OnBeginGenerationPass |
| Type | function |
| Header File | /Engine/Source/Runtime/Slate/Public/Widgets/Views/SListView.h |
| Include Path | #include "Widgets/Views/SListView.h" |
void OnBeginGenerationPass()
Parameters
| Name | Remarks |
|---|---|
| InNumDataItems | The total number of data items being observed |