DataLibraryApiBuilder<TSelf>.OnBeforeSend(RazorBlock) Method

Specifies a function used to customize a web request before it is sent.

Namespace: DevExtreme.AspNet.Mvc.Builders.DataSources

Assembly: DevExtreme.AspNet.Core.dll

Declaration

public TSelf OnBeforeSend(
    RazorBlock jsFunc
)

Parameters

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

Returns

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

Remarks

Use this method to specify a JavaScript handler for the client-side beforeSend event. 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().DataGrid()
    .DataSource(d => d.Mvc()
        .OnBeforeSend(@<text>
            function(e) {
                // Handler code
            }
        </text>)
    )
)

Refer to Customize Requests for more information.