MenuBuilder.OnSubmenuShowing(String) Method

A function that is executed before a submenu is displayed. Mirrors the client-side onSubmenuShowing option.

Namespace : DevExtreme.AspNet.Mvc.Builders

Assembly : DevExtreme.AspNet.Core.dll

Declaration

csharp

public MenuBuilder OnSubmenuShowing(
    string jsFunc
)

Parameters

Name	Type	Description
jsFunc	String

An inline or external JavaScript function.

Returns

Type	Description
MenuBuilder

A reference to this instance after the method is called.

Remarks

Use this method to specify a JavaScript handler for the client-side submenuShowing event. This handler can be an inline function or an external function’s reference. Function arguments are described in the client API reference.

Razor C#

cshtml

@(Html.DevExtreme().Menu()
    .OnSubmenuShowing("myMenu_onSubmenuShowing")
)

<script>
    function myMenu_onSubmenuShowing(e) {
        // Handler code
    }
</script>

Refer to Handle Events and Define Callbacks for more information.