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Data Layer

Guides

of a DataSource. JavaScript dataSource.load() .done(function(result) { // process result }) .fail(function(error) { console.log(error.message); }); Query Concept Besides DataSource and Stores, DevExtreme data layer has one more useful concept named Query. Query is an abstract chainable interface which provides functionality to evaluate data queries. There are several

Application Template

Guides

to the SideNavInnerToolbar component. Configure Themes Switch the Theme NOTE For more information about switching themes, refer to the following help topic: Switch Between Themes at Runtime. You can also refer the following..._logIn() function in middleware.js. This function allows you to test your application during development stage without authorization. Remove this function and implement redirects in production version

Component Configuration Syntax

Guides

several property changes, wrap them with the beginUpdate() and endUpdate() method calls. This prevents the UI component from being unnecessarily refreshed and from events being raised. Use an object... pass an object to the option(options) method or to the jQuery plugin at runtime as shown in the previous code, properties specified in this object will be merged with the properties that were specified

Item Deletion

Guides

of the menuMode property. NOTE If you use a remote data source, the List itself does not delete items from it; it only makes a query to it. It is the data source that is responsible for this query... an item is deleted from the List. However, this does not mean that the item was actually deleted from the data source. jQuery If you are going to change the event handlers at runtime, or if you need

Getting Started with TreeList

Guides

DevExtreme includes multiple data management components. You can use them to display tabular, hierarchical, multidimensional data, or present information as cards. For more information about these...