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ChartBuilder.Annotations(Action<CollectionFactory<ChartAnnotationConfigBuilder>>) Method

aspnetcore-devextreme-dot-aspnet-dot-mvc-dot-builders-dot-chartbuilder-dot-annotations-x28-action-collectionfactory-chartannotationconfigbuilder-x29.md

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ChartBuilder.Annotations(Action<CollectionFactory<ChartAnnotationConfigBuilder>>) 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 ChartBuilder Annotations(
    Action<CollectionFactory<ChartAnnotationConfigBuilder>> configurator
)

Parameters

NameTypeDescription
configuratorAction<CollectionFactory<ChartAnnotationConfigBuilder>>

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

|

Returns

TypeDescription
ChartBuilder

A reference to this instance after the method is called.

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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 ChartAnnotationConfigBuilder whose methods you can use to configure an item.

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

Refer to Nested Options and Collections for more information.

See Also

ChartBuilder Class

ChartBuilder Members

DevExtreme.AspNet.Mvc.Builders Namespace