StaticJsonDataSourceBuilder.OnLoading(RazorBlock) Method

A function that is executed before data is loaded.

Namespace: DevExtreme.AspNet.Mvc.Builders.DataSources

Assembly: DevExtreme.AspNet.Core.dll

Declaration

public StaticJsonDataSourceBuilder OnLoading(
    RazorBlock jsFunc
)

Parameters

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

Returns

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

Remarks

Use this method to specify a JavaScript handler for the client-side loading event.

Razor C#

@(Html.DevExtreme().DataGrid()
    .DataSource(d => d.StaticJson()
        .OnLoading(@<text>
            function(e) {
                // Handler code
            }
        </text>)
    )
)

Refer to Read-Only Data in JSON Format for more information.