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ListSourceHelper.ContainsListCollection Method

Indicates whether the specified data source control contains a collection of data source view objects.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

public static bool ContainsListCollection(
	IDataSource dataSource


Type: System.Web.UI.IDataSource

An IDataSource that specifies the data source control to test for associated data source view objects.

Return Value

Type: System.Boolean
true if the data source control contains a collection of data source view objects; otherwise, false.

Use this method in an implementation of the ContainsListCollection property, passing a reference to a data source control.

The following code example demonstrates the design pattern for a data source class that implements the IListSource methods. The ContainsListCollection property calls the static ContainsListCollection method.

#region Implementation of IListSource

bool IListSource.ContainsListCollection {
    get {
        return ListSourceHelper.ContainsListCollection(this);

IList IListSource.GetList() {
    return ListSourceHelper.GetList(this);


Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0