CollectionSourceBase.List Property

Return the objects contained in the Collection Source’s CollectionSourceBase.Collection.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v19.2.dll

Declaration

C#

public IList List { get; }

VB.NET

Public ReadOnly Property List As IList

Property Value

Type	Description
IList	An IList object representing the objects contained in the Collection Source’s collection.

Remarks

The CollectionSourceBase.Collection property may expose an object which does not implement the IEnumerable interface, and so does not allow iterating over the objects contained in the collection. This can especially be the case when the Server mode is enabled (see CollectionSourceBase.DataAccessMode). By exposing the Collection Source’s collection in the form of a list, the List property allows you to iterate over the collection’s objects in a collection-agnostic manner.

Related GitHub Examples

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

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XAF_validation-how-to-highlight-invalid-properties-when-the-view-is-shown-e1524/CS/DXSample.Module/ImmediateValidationController.cs#L44

if (!((ListView)View).CollectionSource.IsServerMode) {
    ValidateObjects(((ListView)View).CollectionSource.List);
}

VB.NET

XAF_validation-how-to-highlight-invalid-properties-when-the-view-is-shown-e1524/VB/DXSample.Module/ImmediateValidationController.vb#L47

If Not(CType(View, ListView)).CollectionSource.IsServerMode Then
    ValidateObjects((CType(View, ListView)).CollectionSource.List)
End If

XAF_how-to-display-a-list-of-non-persistent-objects-e980/VB/UnboundListView.Module/ShowDuplicateBooksController.vb#L17

Dim dictionary As New Dictionary(Of String, Integer)()
For Each book As Book In View.CollectionSource.List
    If Not String.IsNullOrEmpty(book.Title) Then