---
title: "init(document:activePartID:hiddenPartIDs:selectedPageID:selectedQuestionID:showsPageThumbnails:isStructureEditingEnabled:)"
framework: Assignables
role: symbol
role_heading: Initializer
platforms: [iOS 17.4+, iPadOS 17.4+, Mac Catalyst 17.4+]
path: "assignables/assignabledocumentview/init(document:activepartid:hiddenpartids:selectedpageid:selectedquestionid:showspagethumbnails:isstructureeditingenabled:)"
---

# init(document:activePartID:hiddenPartIDs:selectedPageID:selectedQuestionID:showsPageThumbnails:isStructureEditingEnabled:)

Displays an AssignableDocument.

## Declaration

```swift
@MainActor @preconcurrency init(document: Binding<AssignableDocumentView.Document>, activePartID: MergeablePartsContainerPartID? = nil, hiddenPartIDs: [MergeablePartsContainerPartID] = [], selectedPageID: Binding<AssignableDocumentView.Document.Page.ID?>? = nil, selectedQuestionID: Binding<AssignableDocumentView.Document.Question.ID?>? = nil, showsPageThumbnails: Bool = true, isStructureEditingEnabled: Bool = true)
```

## Parameters

- `document`: A binding to the doc://com.apple.Assignables/documentation/Assignables/AssignableDocumentView/Document to present in the view.
- `activePartID`: The PartID to enable user interaction on.
- `hiddenPartIDs`: A set of PartIDs to hide on this view. Treated as a set.
- `selectedPageID`: A binding to the selected page id.
- `selectedQuestionID`: A binding to the selected question id.
- `showsPageThumbnails`: Controls showing or hiding the document pages thumbnail previews.
- `isStructureEditingEnabled`: Controls access to actions that allow changing the structure of the document on the page thumbnail view contextual menu (i.e. add/duplicate/move/remove pages).

## Discussion

Discussion Example:     AssignableDocumentView(         document: $document,         activePartID: activeLayerID,         hiddenPartIDs: hiddenPartIDs,         selectedPageID: $selectedPageID,         showsPageThumbnails: isMultiPageDocument,         isStructureEditingEnabled: false,         onMarkupActivation: { isMarkupActivated in             if isMarkupActivated {                 activeLayerID = AssignableDocument.PartIDs.instructionMarkup                 isMarkupSelected = true             }         }     )