FileManagerBuilder.OnContextMenuShowing(RazorBlock) Method

A function that is executed before a context menu is displayed. Mirrors the client-side onContextMenuShowing option.

Namespace : DevExtreme.AspNet.Mvc.Builders

Assembly : DevExtreme.AspNet.Core.dll

Declaration

csharp

public FileManagerBuilder OnContextMenuShowing(
    RazorBlock jsFunc
)

Parameters

Name	Type	Description
jsFunc	RazorBlock

The Razor @<text> block that contains JavaScript function code.

Returns

Type	Description
FileManagerBuilder

A reference to this instance after the method is called.

Remarks

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

Run Demo: File Manager - Toolbar and Context Menu

Razor C#

cshtml

@(Html.DevExtreme().FileManager()
    .OnContextMenuShowing("myFileManager_onContextMenuShowing")
)

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

Refer to Handle Events and Define Callbacks for more information.