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Update Data

Guides

DevExtreme DataSource DevExtreme Data Layer components can perform two types of data operations: shaping (sorting, filtering, grouping) and modification (creation, update, deletion). Data Shaping Data shaping is implemented by the DataSource component and its methods. To call them, use the getDataSource() method to get a DataSource instance from your UI component. Alternatively, you can use

Intercept HTTP Requests

Guides

(error.message); } }, store: new ODataStore({ version: 2, url: 'http://www.example.com/Northwind.svc', }), }); loadError = signal

Zooming and Panning

Guides

; View Demo When your data source is updated in real time, the behavior of both the Chart's visual range and the RangeSelector's selected range depends

Sorting

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); } } } export default App; Custom Sorting Use the calculateSortValue option for custom sorting if standard methods do not meet your requirements. This option can be a field name from the data source

Series Types

Guides

Topics in this section describe the series types that come with the PolarChart UI component. Each topic gives an overview of a series type purpose, and details ways to enable and tune it to your needs. View Demo Area The area series type is useful when you need to emphasize a change in values. With this series type, data is displayed by a line that joins points