XPBindingSource.DataSource Property
Gets or sets a data source the XPBindingSource binds to a control.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v20.2.dll
Declaration
Property Value
| Type | Description |
|---|---|
| Object | An object that represents a data source for the XPBindingSource to use. |
Remarks
The XPBindingSource component can use data from the following data sources:
- XPO collections
- System collections (see Collections)
- Custom collections
- Persistent objects
The XPBindingSource accepts generic and nongeneric collections.
The XPBindingSource supports most XPO collections fully, for example:
- XPCollection
- XPCollection<T>
- XPAssociationList
- XPAssociationList<T>
System collections, custom collections, and persistent objects may have the following limitations:
Description | Result | Example |
|---|---|---|
A data source does not implement at least one of the following: IBindingList or INotifyPropertyChanged. | Changes within the data source do not trigger the ListChanged event, because the data source cannot notify the XPBindingSource of any changes. | |
A generic collection does not implement IXPDictionaryProvider. | Set the Dictionary or the ObjectClassInfo property manually, because the XPBindingSource cannot acquire the data source's metadata. | |
A nongeneric collection does not implement IXPClassInfoProvider. | Set the ObjectClassInfo property or both the Dictionary and ObjectType properties manually, because the XPBindingSource cannot acquire the data source's metadata. | |
A data source does not implement IXPSessionProvider. | After the XPBindingSource binds a data source to a control, you cannot add new elements to the data source. You can add new elements to a bound data source only within a Session. Sessions are created only for data sources that implement the IXPSessionProvider interface. |