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Visual Elements

Guides

This guide provides a detailed overview of Bullet elements. Each topic in this guide contains a brief description of an element and its main configurable features. Below is the element map of the Bullet UI component. It may be helpful as you begin learning about the capabilities of this UI component. Hover over an element on the map to discover the name of this element. A click on an element

Visual Elements

Guides

This guide provides a detailed overview of Sparkline elements. Each topic in this guide contains a brief description of an element and its main configurable features. Below is the element map of the Sparkline UI component. It may be helpful as you begin learning about the capabilities of this UI component. Hover over an element on the map to discover the name of this element. A click

dxDataGrid AIColumnRequestCreatingEvent

Reference
The argument type in the aIColumnRequestCreating event.

DataGrid Demo TreeList Demo additionalInfo Additional data to include in the request. Use this object to specify additional data required by AI endpoints. For example, you can add metadata and query parameters. cancel Allows you to cancel the AI request. column The AI column that initiated the request. component The UI component's instance. data DataGrid data included in the AI request

dxTreeList AIColumnRequestCreatingEvent

Reference
The argument type in the aIColumnRequestCreating event.

DataGrid Demo TreeList Demo additionalInfo Additional data to include in the request. Use this object to specify additional data required by AI endpoints. For example, you can add metadata and query parameters. cancel Allows you to cancel the AI request. column The AI column that initiated the request. component The UI component's instance. data TreeList data included in the AI request

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