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ASPxMenu Class

A menu control.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v21.2.dll

Declaration

public class ASPxMenu :
    ASPxMenuBase

Remarks

The ASPxMenu allows you to display a menu in your web application. You can use the menu control in combination with a site map data source control (for instance, the ASPxSiteMapDataSource) to navigate a web site.

Menu Control

Create a Menu

Design Time

The ASPxMenu control is available on the DX.21.2: Navigation & Layout toolbox tab in the Microsoft Visual Studio IDE.

Menu in Toolbox

Drag the control onto a form and customize the control’s settings, or paste the control markup in the page’s source code.

<dx:ASPxMenu ID="mMain" runat="server" AllowSelectItem="True" ShowPopOutImages="True">
    <Items>
        <dx:MenuItem Text="Home">
            <Items>
                <dx:MenuItem Text="News">
                    <Items>
                        <dx:MenuItem Text="For Developers">
                        </dx:MenuItem>
                        <dx:MenuItem Text="Website news">
                        </dx:MenuItem>
                    </Items>
                </dx:MenuItem>
                <dx:MenuItem Text="Our Mission">
                </dx:MenuItem>
                <dx:MenuItem Text="Our Customers">
                </dx:MenuItem>
            </Items>
        </dx:MenuItem>
        ...
    </Items>
</dx:ASPxMenu>

Run Time

protected void Page_Load(object sender, EventArgs e) {
ASPxMenu ASPxMenu1 = new ASPxMenu()
{
    ID = "ASPxMenu1",
    ItemAutoWidth = false,
    AllowSelectItem = true
};
ASPxMenu1.Items.Add(
    new DevExpress.Web.MenuItem()
    {
        Text = "Home",
        Items = {
            new DevExpress.Web.MenuItem() {Text = "News"},
            new DevExpress.Web.MenuItem() {Text = "Our Mission"},
            new DevExpress.Web.MenuItem() {Text = "Our Customers"}
        }
    });
ASPxMenu1.Items.Add(new DevExpress.Web.MenuItem() { Text = "Products" });
...
form1.Controls.Add(ASPxMenu1);
}

Note

DevExpress controls require that you register special modules, handlers, and options in the Web.config file. You can change this file or switch to the Design tab in the Microsoft Visual Studio IDE to automatically update the Web.config file. Note that this information is automatically registered if you use the DevExpress Template Gallery to create a project.

Client-Side API

The ASPxMenu‘s client-side API is implemented with JavaScript language and exposed by the ASPxClientMenu object.

Availability

Available by default.

Client object type

ASPxClientMenu

Access name

ASPxMenu.ClientInstanceName

Events

ASPxMenu.ClientSideEvents

Tree Structure

The ASPxMenu control can contain the following menu items types:

  • root menu items - a menu item located at the menu’s top level (level 0).

  • child menu item - a menu item that has a parent menu item.

The menu stores its root items in the ASPxMenuBase.Items collection. Child menu items are stored in the parent menu item’s MenuItem.Items collection.

The submenu items appear and disappear when an end user clicks outside the menu or according to the ASPxMenuBase.AppearAfter and ASPxMenuBase.DisappearAfter settings.

<dx:ASPxMenu ID="mMain" runat="server" AllowSelectItem="True" ShowPopOutImages="True">
    <Items>
        <dx:MenuItem Text="Home">
            <Items>
                <dx:MenuItem Text="News">
                    <Items>
                        <dx:MenuItem Text="For Developers">
                        </dx:MenuItem>
                        <dx:MenuItem Text="Website news">
                        </dx:MenuItem>
                    </Items>
                </dx:MenuItem>
                <dx:MenuItem Text="Our Mission">
                </dx:MenuItem>
                <dx:MenuItem Text="Our Customers">
                </dx:MenuItem>
            </Items>
        </dx:MenuItem>
    ...
    </Items>
</dx:ASPxMenu>

Menu - Tree Structure

See demo

Data Binding

You can bind the menu control’s items to hierarchal data sources - ASPxHierarchicalDataWebControl.DataSourceID, ASPxDataWebControlBase.DataSource. Use ASPxMenuBase.ItemDataBound event to dynamically map menu items’ properties to the required data fields.

    <dx:ASPxMenu ID="ASPxMenu1" runat="server"
    DataSourceID="ASPxSiteMapDataSource1" OnItemDataBound="ASPxMenu1_ItemDataBound"
    EncodeHtml="False" AllowSelectItem="True" Orientation="Vertical" />

Learn more | See demo

Scrolling

The menu control allows you to scroll items in sub menus if item heights exceed the browser window’s height.

Property

Description

EnableSubMenuScrolling

Specifies whether submenu scrolling is enabled in the menu.

EnableScrolling

Specifies whether submenu scrolling is enabled in an individual menu item.

ScrollDownButtonImage, ScrollUpButtonImage, ScrollButtonStyle

Style settings

<dx:ASPxMenu ID="menu" runat="server" DataSourceID="menuDataSource" Orientation="Horizontal" 
  AllowSelectItem="True" EnableViewState="False" ShowPopOutImages="True" EnableSubMenuScrolling="True" ...>
</dx:ASPxMenu>

See demo

Toolbar Mode

Set the ShowAsToolbar property to true to enable toolbar mode for the menu. It reduces the space between menu items, so that the menu looks like a toolbar.

<dx:ASPxMenu ID="ASPxMenu1" runat="server" ShowAsToolbar="true" ShowPopOutImages="true">
    <Items>
    ...
    </Items>
</dx:ASPxMenu>

Menu - ShowAsToolbar Property

See demo

Adaptivity

The menu allows you to build adaptive page layouts (Enabled) The control can automatically resize or hide its items when the browser window is resized.

See demo | Learn more

Appearance Customization

Appearance

Description

Item’s link style

ASPxMenuBase.LinkStyle

Item’s link mode

ASPxMenuBase.ItemLinkMode

Item’s Visibility and Order

MenuItem.Visible, MenuItem.VisibleIndex

Item’s style

ASPxMenuBase.ItemStyle, ASPxMenuBase.SubMenuItemStyle and ASPxMenuBase.SubMenuStyle

See demo | Learn more

Templates

You can use user-defined templates to customize the menu items:

See demo | Learn more

Online Demos

ASPxMenu Demos

See Also