DxMenuItem.SubMenuCssClass Property

Assigns a CSS class to the item’s drop-down menu.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

[DefaultValue(null)]
[Parameter]
public string SubMenuCssClass { get; set; }

Property Value

Type	Default	Description
String	null	CSS class names delimited by spaces.

Remarks

Assign a CSS class name to the SubMenuCssClass to apply custom styles to a specific drop-down menu:

<style>
    .my-dropdown-item {
        width: 500px
    }
</style>

<div class="card">
    <DxMenu Title="DevExpress"
            ItemsPosition="ItemPosition.Start">
        <Items>
            <DxMenuItem Text="Products" SubMenuCssClass="my-dropdown-item">
                <Items>
                    <DxMenuItem Text="Subscriptions / Packs" />
                    <DxMenuItem Text=".NET Windows Forms Components" />
                    <DxMenuItem Text="Reporting / Printing Suites" />
                    <DxMenuItem Text="VCL Components and Tools" />
                    <DxMenuItem Text="ASP.NET Components" />
                </Items>
            </DxMenuItem>
            <DxMenuItem Text="Support">
                <Items>
                    <DxMenuItem Text="Knowledge Base" />
                    <DxMenuItem Text="Documentation" />
                    <DxMenuItem Text="Support Center" />
                    <DxMenuItem Text="Newsgroups" />
                    <DxMenuItem Text="Best Practices" />
                </Items>
            </DxMenuItem>
            <DxMenuItem Text="Documentation" BeginGroup="true" />
            <DxMenuItem Text="Demos" />
            <DxMenuItem Text="Blogs" />
        </Items>
    </DxMenu>
</div>

Use the SubMenuCssClass property to apply the same style to all drop-down menus.

For more information on how to apply CSS classes to DevExpress Blazor components, refer to the following help topic: CSS Classes.

If your custom CSS ruleset includes only one class selector (.my-dropdown-item in the code sample above), some property declarations can be ignored. DevExpress themes can apply predefined CSS rules that are more specific and have higher priority than a single-selector rule. Make your rule more specific to increase the priority of your ruleset. See the following help topic for an example: Apply Styles to Components. For more information about how a browser calculates rule priority, refer to the following topic: Understanding the cascade.

You can use the !important flag to override other CSS rules. However, note that this flag modifies the standard behavior of the cascade, which can make troubleshooting CSS issues quite challenging, particularly in large stylesheets.