# ControlWidgetTemplateBuilder A custom attribute that constructs a control widget template’s body. ``` @resultBuilder struct ControlWidgetTemplateBuilder ``` ## Overview The `@ControlWidgetTemplateBuilder` attribute allows your control template’s body closure to produce a control template after zero or more other statements: ``` struct GarageDoorOpener: ControlWidget { var body: some ControlWidgetConfiguration { let kind = "com.yourcompany.GarageDoorOpener" StaticControlConfiguration( kind: kind ) { let isOpen = ... ControlWidgetToggle( "Garage Door", isOn: isOpen, action: ToggleGarageDoor() ) { Label( $0 ? "Open" : "Closed", systemImage: $0 ? "door.garage.open" : "door.garage.closed" ) } } } } ``` ## Topics ### Type Methods [`static func buildBlock(Content) -> some ControlWidgetTemplate`](/documentation/SwiftUI/ControlWidgetTemplateBuilder/buildBlock(_:)) Passes a single control widget template written as a child view through unmodified. [`static func buildExpression(Content) -> Content`](/documentation/SwiftUI/ControlWidgetTemplateBuilder/buildExpression(_:)) Builds an expression within the builder. --- 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)