remoteOperations

Notifies the DataGrid of the server's data processing operations.

Type:

Boolean

|

Object

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: true all operations except group paging -
remoteOperations: { groupPaging: true } all operations including group paging -
remoteOperations: { paging: true } paging filtering1, sorting1, summary calculation1
remoteOperations: { paging: true }
(with grouping used in the widget)
paging, filtering, sorting grouping3, summary calculation1
remoteOperations: { filtering: true } filtering -
remoteOperations: { sorting: true } sorting filtering1
remoteOperations: { grouping: true } grouping, filtering sorting1, summary calculation1
remoteOperations: { summary: true } summary calculation filtering1, sorting2, grouping2
1 - If this functionality is used in the widget.
2 - If group summary calculation is used.
3 - If grouping.autoExpandAll is set to false
NOTE
Paging, filtering, and sorting are performed on the server side for the ODataStore, but you can change them to the client side by setting the corresponding remoteOperations fields to false. Other operations are always client-side.

The following restrictions apply when operations are remote:

Web API Service Demo Custom Service Demo

See Also

filtering

Specifies whether or not filtering must be performed on the server side.

Type:

Boolean

Default Value: false

grouping

Specifies whether or not grouping must be performed on the server side.

Type:

Boolean

Default Value: false

groupPaging

Specifies whether paging by groups should be performed on the server side.

Type:

Boolean

Default Value: false

Remote group paging allows you to load groups from a remote source in portions. This feature speeds up grouping because the DataGrid transmits less data. However, requests become more frequent because the DataGrid sends several requests each time a user expands a group or sorts/filters data.

Remote group paging has the following restrictions:

  • Filtering, paging, grouping, and sorting should be performed on the server.
  • All groups should be collapsed initially by setting the grouping.autoExpandAll option to false.
  • The expandAll(groupIndex) method should not be called. Otherwise, the widget ignores remote group paging.
NOTE
When groupPaging is enabled, all other operations (filtering, sorting, paging, grouping and summaries calculation) become remote.

paging

Specifies whether or not paging must be performed on the server side.

Type:

Boolean

Default Value: false

sorting

Specifies whether or not sorting must be performed on the server side.

Type:

Boolean

Default Value: false

summary

Specifies whether or not summaries calculation must be performed on the server.

Type:

Boolean

Default Value: false
NOTE
When summary calculation is remote, the widget does not support custom summary calculation.