Angular TreeList - remoteOperations
Notifies the TreeList of the server's data processing operations. Applies only if data has a plain structure.
Server-side data processing improves the widget's performance on large datasets. When the server does not implement particular operations (and/or the corresponding remoteOperations fields are false) they are executed on the client. Note that the widget may send queries to the server while executing a client-side operation.
The following table lists the possible remoteOperations configurations and the operations the server should implement. The server should also implement additional operations depending on the used widget functionality.
| Setting | Required server-side operations | Additional server-side operations |
|---|---|---|
remoteOperations: { filtering: true } |
filtering | - |
remoteOperations: { sorting: true } |
sorting | filtering* |
remoteOperations: { grouping: true } |
grouping, filtering | sorting* |
When operations are performed on the server side, the TreeList does not support:
- sorting, grouping, and filtering by columns with the calculateCellValue or calculateDisplayValue option defined;
- custom sorting using functions (that is, calculateSortValue accepts strings only).
See Also
- Data Binding: Web API Service | PHP Service | MongoDB Service | Custom Sources
grouping
Grouping is required only when a user can filter data using a header filter.
If you have technical questions, please create a support ticket in the DevExpress Support Center.