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Errors and Warnings

Reference
This section lists errors and warnings that may occur when using the DevExtreme Data Library.

that a value can be found for any key passed to the byKey(key) function. E4010 Occurs when creating the Query object by using the createQuery method of a CustomStore. This error is specific

dxFileManager Configuration

Reference
This section describes properties that configure the FileManager UI component's contents, behavior, and appearance.

See Also jQuery Create and Configure a Component Angular Component Configuration Syntax Vue Component Configuration Syntax React Component Configuration Syntax accessKey Specifies the...

ArrayStore Methods

Reference
This section describes methods that control the ArrayStore.

(props); store.clear(); } // ... } export default App; createQuery() Creates a Query for the underlying array. jQuery JavaScript var store = new DevExpress.data.ArrayStore({ // ArrayStore is configured here }); var query = store.createQuery(); Angular TypeScript import ArrayStore from "devextreme/data/array_store"; import DevExpress from "devextreme/bundles/dx.all

LocalStore Methods

Reference
This section describes methods that control the LocalStore.

a Query for the underlying array. jQuery JavaScript var store = new DevExpress.data.ArrayStore({ // ArrayStore is configured here }); var query = store.createQuery(); Angular TypeScript import ArrayStore from "devextreme/data/array_store"; import DevExpress from "devextreme/bundles/dx.all"; // ... export class AppComponent { store: ArrayStore; query: DevExpress.data.Query

dxFileManager contextMenu

Reference
Configures the context menu settings.

and optional settings ('visible', 'beginGroup', 'text', 'icon', 'disabled') to the items array. jQuery JavaScript $(function () { $("#file-manager").dxFileManager({ contextMenu... { name: "download", text: "Download a File" }, { name: "refresh", beginGroup: true