# Layout ## Description Layout can be used to create a base UI structure for an application. ## Parameters | Name | Type | Default Value | Description | | :--- | :--- | :------------ | :---------- | | Classes | `BitLayoutClassStyles?` | null | Custom CSS classes for different parts of the BitLayout. | | Footer | `RenderFragment?` | null | The content of the footer section. | | Header | `RenderFragment?` | null | The content of the header section. | | HideNavPanel | `bool` | false | Hides NavPanel content when true. | | Main | `RenderFragment?` | null | The content of the main section. | | NavPanel | `RenderFragment?` | null | The content of the nav panel section. | | NavPanelWidth | `int` | 0 | The width of the nav panel section in px. | | ReverseNavPanel | `bool` | false | Reverses the position of the nav panel inside the main container. | | Styles | `BitLayoutClassStyles?` | null | Custom CSS styles for different parts of the BitLayout. | | StickyFooter | `bool` | false | Enables sticky positioning of the footer at the bottom of the viewport. | | StickyHeader | `bool` | false | Enables sticky positioning of the header at the top of the viewport. | | AriaLabel | `string?` | null | Gets or sets the accessible label for the component, used by assistive technologies. | | Class | `string?` | null | Gets or sets the CSS class name(s) to apply to the rendered element. | | Dir | `BitDir?` | null | Gets or sets the text directionality for the component's content. | | ForceAnimation | `bool` | false | Gets or sets a value indicating whether the component's animations play at their full duration even when reduced motion is requested. | | HtmlAttributes | `Dictionary<string, object>` | new Dictionary<string, object>() | Captures additional HTML attributes to be applied to the rendered element, in addition to the component's parameters. | | Id | `string?` | null | Gets or sets the unique identifier for the component's root element. | | IsEnabled | `bool` | true | Gets or sets a value indicating whether the component is enabled and can respond to user interaction. | | Style | `string?` | null | Gets or sets the CSS style string to apply to the rendered element. | | TabIndex | `string?` | null | Gets or sets the tab order index for the component when navigating with the keyboard. | | Visibility | `BitVisibility` | BitVisibility.Visible | Gets or sets the visibility state (visible, hidden, or collapsed) of the component. | ## Public Members | Name | Type | Default Value | Description | | :--- | :--- | :------------ | :---------- | | UniqueId | `Guid` | Guid.NewGuid() | Gets the readonly unique identifier for the component's root element, assigned when the component instance is constructed. | | RootElement | `ElementReference` | | Gets the reference to the root HTML element associated with this component. | ## Enums ### BitVisibility Enum | Name | Value | Description | | :--- | :--- | :---------- | | Visible | 0 | The content of the component is visible. | | Hidden | 1 | The content of the component is hidden, but the space it takes on the page remains (visibility:hidden). | | Collapsed | 2 | The component is hidden (display:none). | ### BitDir Enum | Name | Value | Description | | :--- | :--- | :---------- | | Ltr | 0 | Ltr (left to right) is to be used for languages that are written from the left to the right (like English). | | Rtl | 1 | Rtl (right to left) is to be used for languages that are written from the right to the left (like Arabic). | | Auto | 2 | Auto lets the user agent decide. It uses a basic algorithm as it parses the characters inside the element until it finds a character with a strong directionality, then applies that directionality to the whole element. | ## Sub Classes ### BitLayoutClassStyles Properties | Name | Type | Default Value | Description | | :--- | :--- | :------------ | :---------- | | Root | `string?` | null | Custom CSS classes/styles for the root element of the BitLayout. | | Header | `string?` | null | Custom CSS classes/styles for the header section of the BitLayout. | | Main | `string?` | null | Custom CSS classes/styles for the main section of the BitLayout. | | NavPanel | `string?` | null | Custom CSS classes/styles for the nav-menu section of the BitLayout. | | MainContent | `string?` | null | Custom CSS classes/styles for the main-content section of the BitLayout. | | Footer | `string?` | null | Custom CSS classes/styles for the footer section of the BitLayout. | ## Examples \n**Basic**: ```razor
Header
Main
``` \n**NavPanel**: ```razor
Header
Main
``` ```csharp private bool HideNavPanel; ``` \n**Styles & Classes**: ```razor
Header
NavPanel
Main
Footer
```