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Component Configuration Syntax

Guides

Create and Configure a Component Any DevExtreme UI component must be placed in a container. This role is played by a <div> HTML element. Add a <div> to the <body> tag of your page...); if (chartInstance) { // Your code goes here } Handle Events Subscribe to an Event You can subscribe to an event using a configuration property. All event handling properties are given names that begin

Gray Boxes Appear After Data Loading

Guides

is corrupted, etc.) Follow the steps below to troubleshoot your application. If the solutions listed here do not help you resolve an issue, create a ticket in our Support Center and describe the issue... or unstable, gray boxes may be displayed for a longer time. If gray boxes take too long to disappear, you need to replace a remote data source with a local data source and open your project

dxBullet tooltip

Reference
Configures the tooltip.

space around your UI component to display it. For example, you can apply a margin to the UI component's container to reserve the area around the UI component for the tooltip. arrowLength Specifies

dxFilterBuilder fields lookup

Reference
Configures the lookup field.

Use the lookup field to limit the available filter values. See Also Predefine Filter Values allowClearing Specifies whether to display the Clear button in the lookup field while it is being edited. Set this property to true only if your data source accepts null values. If you need to specify this property based on a condition, set the showClearButton property instead. This is a property

dxGantt resourceAssignments

Reference
Configures resource assignments.

View Demo Resource assignments define relationship between tasks and resources. Use the dataSource property to bind the UI component to a data source, which contains resource assignments. If the field names in your data source differ from the 'id', 'resourceId' and 'taskId' default names, use the keyExpr, resourceIdExpr and/or taskIdExpr properties to map data fields