PolarChartBuilder.Annotations(Action<CollectionFactory<PolarChartAnnotationConfigBuilder>>) Method

Provides access to the client-side annotations option that represents an annotation config collection.

Namespace : DevExtreme.AspNet.Mvc.Builders

Assembly : DevExtreme.AspNet.Core.dll

Declaration

csharp

public PolarChartBuilder Annotations(
    Action<CollectionFactory<PolarChartAnnotationConfigBuilder>> configurator
)

Parameters

Name	Type	Description
configurator	Action<CollectionFactory<PolarChartAnnotationConfigBuilder>>

A function that allows you to add items to the collection.

Returns

Type	Description
PolarChartBuilder

A reference to this instance after the method is called.

Remarks

To configure an annotation config collection, use a multiline lambda expression. In this case, a lambda parameter performs the role of a collection factory, and its Add() method adds a new item to the collection. The Add() method returns PolarChartAnnotationConfigBuilder whose methods you can use to configure an item.

Razor C#

cshtml

@(Html.DevExtreme().PolarChart()
    .Annotations(annotations => {
        annotations.Add(); // call methods to configure an annotation config
        annotations.Add();
    })
)

Refer to Nested Options and Collections for more information.