CollectionSourceBase.DataAccessMode Property
Gets the mode used to access the CollectionSourceBase‘s collection.
Namespace: DevExpress.ExpressApp
Assembly: DevExpress.ExpressApp.v19.1.dll
Declaration
Property Value
| Type | Description |
|---|---|
| CollectionSourceDataAccessMode | A CollectionSourceDataAccessMode enumeration value that specifies the mode used to access the Collection Source’s CollectionSourceBase.Collection. |
Available values:
| Name | Description |
|---|---|
| Client | The entire record set required for the current List View is loaded into memory. All the data processing takes place on the client side. |
| Server | Data is requested from a data store in small portions that should currently be displayed. All data-aware operations are performed on the data server side. |
| DataView | A lightweight read-only list of data records (EFDataView or XPView) is retrieved without loading complete persistent objects. |
| InstantFeedback | A List View’s control continues responding to a user’s actions while the data is being retrieved in a background thread (see Instant Feedback Mode). |
Remarks
When you create a Collection Source in code, you can initialize the DataAccessMode property using a constructor with the dataAccessMode parameter. To set this property to the required value in the Model Editor, use the IModelListView.DataAccessMode property of the Views | <ListView> node corresponding to the List View for which the current Collection Source is created.
Detailed descriptions of the available data access modes are provided in the following topics.