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You can get more details about me and my blog at About us page. September 6, This property is primarily used by control developers. Gets a collection of MenuItemBinding objects that define the relationship between a data item and the menu item it is binding to.
Gets a reference to the naming container if the naming container implements IDataItemContainer. Gets a reference to the naming container if the naming container implements IDataKeysControl. Gets or sets the ID of the control from which the data-bound control retrieves its list of data items. Gets or sets the duration for which a dynamic menu is displayed after the mouse pointer is no longer positioned over the menu.
Gets or sets the URL to an image to display at the bottom of each dynamic menu item to separate it from other menu items. Gets or sets a value indicating whether the built-in image that indicates that a dynamic menu item has a submenu is displayed. Gets or sets the number of pixels to shift a dynamic menu horizontally relative to its parent menu item. Gets a reference to the Style object that allows you to set the appearance of a dynamic menu item when the mouse pointer is positioned over it.
Gets a reference to the MenuItemStyle object that allows you to set the appearance of the menu items within a dynamic menu. Gets a reference to the MenuItemStyle object that allows you to set the appearance of a dynamic menu. Gets or sets the alternate text for the image used to indicate that a dynamic menu item has a submenu. Gets or sets the URL to a custom image that is displayed in a dynamic menu item when the dynamic menu item has a submenu.
Gets a reference to the MenuItemStyle object that allows you to set the appearance of the dynamic menu item selected by the user. Gets or sets the URL to an image to display at the top of each dynamic menu item to separate it from other menu items. Gets or sets the number of pixels to shift a dynamic menu vertically relative to its parent menu item. Gets or sets a value indicating whether the server control persists its view state, and the view state of any child controls it contains, to the requesting client.
Gets a value indicating whether the current server control's child controls have any saved view-state settings. Gets or sets a value that indicates whether ASP. NET should render a block of cascading style sheet CSS definitions for the styles that are used in the menu. Gets a value indicating whether the DataSourceID property is set. When implemented in a derived class, gets a value that indicates whether the control is using model binders.
Gets a MenuItemCollection object that contains all menu items in the Menu control. Gets a MenuItemStyleCollection object that contains the style settings that are applied to menu items based on their level in a Menu control. Gets a MenuItemStyleCollection object that contains the style settings that are applied to the selected menu item based on its level in a Menu control. Gets a MenuItemStyleCollection object that contains the style settings that are applied to the submenu items in the static menu based on their level in a Menu control.
Gets a value indicating whether the control participates in loading its view state by ID instead of index. Gets a reference to the server control's naming container, which creates a unique namespace for differentiating between server controls with the same ID property value. Gets or sets the direction in which to render the Menu control. Gets a reference to the Page instance that contains the server control. Gets or sets the character used to delimit the path of a menu item in a Menu control.
Gets or sets a value that specifies whether the Menu control renders HTML table elements and inline styles, or listitem elements and cascading style sheet CSS styles. Gets or sets a value indicating whether the DataBind method should be called.
Gets or sets the URL to an image displayed in a dynamic menu to indicate that the user can scroll down for additional menu items. Gets or sets the alternate text for the image specified in the ScrollDownImageUrl property. Gets or sets the URL to an image displayed in a dynamic menu to indicate that the user can scroll up for additional menu items.
Gets or sets the alternate text for the image specified in the ScrollUpImageUrl property. Gets information about the container that hosts the current control when rendered on a design surface. Gets or sets the alternate text for a hidden image read by screen readers to provide the ability to skip the list of links.
Gets or sets the URL to an image displayed as the separator at the bottom of each static menu item. Gets or sets a value indicating whether the built-in image is displayed to indicate that a static menu item has a submenu. Gets a reference to the Style object that allows you to set the appearance of a static menu item when the mouse pointer is positioned over it. Gets a reference to the MenuItemStyle object that allows you to set the appearance of the menu items in a static menu.
Gets a reference to the MenuItemStyle object that allows you to set the appearance of a static menu. Gets or sets the alternate text for the pop-out image used to indicate that a static menu item has a submenu. Gets a reference to the MenuItemStyle object that allows you to set the appearance of the menu item selected by the user in a static menu. Gets a collection of text attributes that will be rendered as a style attribute on the outer tag of the Web server control. Gets a value that indicates whether the control should set the disabled attribute of the rendered HTML element to "disabled" when the control's IsEnabled property is false.
This property is used primarily by control developers. Gets or sets the target window or frame in which to display the Web page content associated with a menu item. Gets the virtual directory of the Page or UserControl that contains the current server control. Gets or sets a value that indicates whether the control checks client input from the browser for potentially dangerous values.
Gets a dictionary of state information that allows you to save and restore the view state of a server control across multiple requests for the same page. Gets a value that indicates whether the StateBag object is case-insensitive. Called after a child control is added to the Controls collection of the Control object. Copies any nonblank elements of the specified style to the Web control, overwriting any existing style elements of the control. This method is primarily used by control developers.
Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page. Sets the cached ClientID value to null. Deletes the view-state and control-state information for all the server control's child controls.
Copies the properties not encapsulated by the Style object from the specified Web server control to the Web server control that this method is called from. This method is used primarily by control developers. Creates the child controls of a Menu control. Creates a new ControlCollection object to hold the child controls both literal and server of the server control.
Creates the style object that is used internally by the WebControl class to implement all style related properties. Binds the data source to the Menu control. This method cannot be inherited. Binds a data source to the invoked server control and all its child controls with an option to raise the DataBinding event.
Determines whether the server control contains child controls. If it does not, it creates child controls. Verifies that the menu control requires data binding and that a valid data source control is specified before calling the DataBind method. Searches the current naming container for a server control with the specified id parameter. Searches the current naming container for a server control with the specified id and an integer, specified in the pathOffset parameter, which aids in the search.
You should not override this version of the FindControl method. Retrieves a HierarchicalDataSourceView object that the data-bound control uses to perform data operations. Retrieves the IHierarchicalDataSource that the data-bound control is associated with, if any. Retrieves the design-time state of the Menu control. Gets the Type of the current instance. Returns the prefixed portion of the UniqueID property of the specified control.
Loads the state of the properties in the Menu control that need to be persisted. Loads the previously saved view state of the Menu control. Creates a shallow copy of the current Object. Copies any nonblank elements of the specified style to the Web control, but will not overwrite any existing style elements of the control. Determines whether the event for the Menu control is passed up the page's user interface UI server control hierarchy.
Raises the DataBinding event. Raises the DataBound event. Called when one of the base data source identification properties is changed, to re-bind the data-bound control to its data.
Raises the Init event. Handles the Load event. Raises the MenuItemClick event. Raises the MenuItemDataBound event. Raises the PreRender event. If the MaximumDynamicDisplayLevels is set to a negative number, an exception is thrown. You can define content for the Menu control in two ways: by adding individual MenuItem objects declaratively or programmatically , and by data binding the control to an XML data source.
You can add individual menu items to the control by specifying them in the Items property. The Items property is a collection of MenuItem objects. The following example shows the declarative markup for a Menu control with three items, each of which has two child items:. Binding to an XML file allows you to control the menu's content through edits to the file, rather than by using the designer.
This allows you to update the navigational aspect of your site without revisiting the Menu control or editing any code. If you have a site with changing content, an XML file can be used to organize the content, and fed to the Menu control to make sure the content is accessible to users of the Web site. You can adjust the behavior of the Menu control through its properties.
Additionally, you can control the behavior of dynamic display, including the amount of time a menu node remains visible once it is displayed. For example, to change the Menu orientation from horizontal to vertical, you can set the Orientation property as follows:. You can set individual properties of the Menu control to specify the size, color, font, and other characteristics of its appearance. In addition, you can apply skins and themes to the Menu control. Each menu level supports style properties.
If no dynamic style properties are set, the static style properties are used. The code below shows obtaining the directory and file information and adding the file names to the list of strings. The method then returns the list of strings as a model to the view. Cycling through a list of strings means that you can use array syntax i. The image below is what the download view produces.
As users click on the download link, the Download action method returns a FileResult :. FileContentResult : Use this when want to use a byte array to access the file. In this scenario, you might have obtained the file as a byte array from a database call. FilePathResult : Returns a file on disk when you must access via a file path. Octet ;. The various ways to return a file are very similar but allow sufficient customizations to meet the needs of most scenarios.
Sometimes the file is from a stream or byte array, or sometimes you only have a simple file path. Media types as well as the System. MediaTypeNames enum are available so you can designate the file type for download, as the above samples demonstrate.
Code for uploading and downloading files are mandatory tasks for Web developers at some point in time.
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