# init(_:children:sortOrder:columnCustomization:columns:) Creates a sortable, hierarchical table that computes its rows based on a collection of identifiable data and key path to the children of that data. ``` nonisolated init(_ data: Data, children: KeyPath, sortOrder: Binding<[Sort]>, columnCustomization: Binding>? = nil, @TableColumnBuilder columns: () -> Columns) where Rows == TableOutlineGroupContent, Data : RandomAccessCollection, Sort : SortComparator, Columns.TableRowValue == Data.Element, Data.Element == Sort.Compared ``` ## Parameters `data` The identifiable data for computing the table rows. `children` A key path to a property whose non-`nil` value gives the children of `data`, and whose `nil` value represents a leaf row of the hierarchy, which is not capable of having children. `sortOrder` A binding to the ordered sorting of columns. `columnCustomization` A binding to the state of columns. `columns` The columns to display in the table. ## Discussion Each column in the table that should participate in customization is required to have an identifier, specified with [`customizationID(_:)`](/documentation/SwiftUI/TableColumnContent/customizationID(_:)). --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)