# modelContainer(for:inMemory:isAutosaveEnabled:isUndoEnabled:onSetup:) Sets the model container in this view for storing the provided model type, creating a new container if necessary, and also sets a model context for that container in this view’s environment. ``` @MainActor @preconcurrency func modelContainer(for modelType: any PersistentModel.Type, inMemory: Bool = false, isAutosaveEnabled: Bool = true, isUndoEnabled: Bool = false, onSetup: @escaping (Result) -> Void = { _ in }) -> some View ``` ## Parameters `modelType` The model type defining the schema used to create the model container. `inMemory` Whether the container should store data only in memory. `isAutosaveEnabled` `true` if autosave is enabled. `isUndoEnabled` use `undoManager` in the environment to manage undo operations for the model container. `onSetup` A callback that will be invoked when the creation of the container has has succeeded or failed. ## Discussion In this example, the `RecipesList` view sets a model container to use for all of its contents, configured to store instances of `Recipe`: ``` @Model class Recipe { ... } ... RecipesList() .modelContainer(for: Recipe.self) ``` The environment’s [`modelContext`](/documentation/SwiftUI/EnvironmentValues/modelContext) property will be assigned a new context associated with this container. All implicit model context operations in this view, such as `Query` properties, will use the environment’s context. By default, the container stores its model data persistently on disk. To only store data in memory for the lifetime of the app’s process, pass `true` to the `inMemory:` parameter. The container will only be created once. New values that are passed to the `modelType` and `inMemory` parameters after the view is first created will be ignored. --- 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)