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.NET Framework 4.5.2+

XPBindingSource.DataSource Property

Gets or sets a data source the XPBindingSource binds to a control.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v21.2.dll


public object DataSource { get; set; }

Property Value

Type Default Description


An object that represents a data source for the XPBindingSource to use.


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:

System collections, custom collections, and persistent objects may have the following limitations:




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.

The following code snippets (auto-collected from DevExpress Examples) contain references to the DataSource property.


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See Also