DiagramNodesBuilder.DataSource(Func<DataSourceFactory, OptionsOwnerBuilder>) Method

Binds a diagram nodes to data, allows you to configure data access from different sources: API controllers, Razor page handlers, OData services, arrays, and more.

Namespace: DevExtreme.AspNet.Mvc.Builders

Assembly: DevExtreme.AspNet.Core.dll

Declaration

public DiagramNodesBuilder DataSource(
    Func<DataSourceFactory, OptionsOwnerBuilder> configurator
)

Parameters

Name	Type	Description
configurator	Func<DataSourceFactory, OptionsOwnerBuilder>	A function that allows you to configure access to data.

Returns

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

Remarks

To specify a data source, use a lambda expression. The lambda parameter is a DataSourceFactory class instance that provides methods to configure data access from different sources.

The following example demonstrates how to bind a diagram nodes to an API controller:

Razor C#

@(Html.DevExtreme().Diagram()
    .Nodes(nodes => nodes
        .DataSource(ds => ds.Mvc()
            .Controller("MyDataController")
            .LoadAction("Get")
            .Key("ID")
        )
    )
)