RemoteFileSystemProviderBuilder.BeforeSubmit(RazorBlock) Method

Specifies a function that customizes a form submit request before it is sent to the server. Mirrors the client-side beforeSubmit option.

Namespace: DevExtreme.AspNet.Mvc.Builders

Assembly: DevExtreme.AspNet.Core.dll

Declaration

public RemoteFileSystemProviderBuilder BeforeSubmit(
    RazorBlock jsFunc
)

Parameters

Name	Type	Description
jsFunc	RazorBlock	The Razor @<text> block that contains JavaScript function code.

Returns

Type	Description
RemoteFileSystemProviderBuilder	A reference to this instance after the method is called.

Remarks

Use this method to specify a JavaScript handler for the client-side beforeSubmit callback. Pass the Razor @<text> block that contains the function code to the method. Function arguments are described in the client API reference.

Razor C#

@(Html.DevExtreme().FileManager()
    .FileSystemProvider(provider => provider.Remote()
        .BeforeSubmit(@<text>
            function(arg) {
                // Handler code
            }
        </text>)
    )
)

Refer to Handle Events and Define Callbacks for more information.

Run Demo: File Manager - Overview Demo