ListSourceHelper.ContainsListCollection(IDataSource) 方法

定义

指示指定数据源控件是否包含数据源视图对象的集合。Indicates whether the specified data source control contains a collection of data source view objects.

public:
 static bool ContainsListCollection(System::Web::UI::IDataSource ^ dataSource);
public static bool ContainsListCollection (System.Web.UI.IDataSource dataSource);
static member ContainsListCollection : System.Web.UI.IDataSource -> bool
Public Shared Function ContainsListCollection (dataSource As IDataSource) As Boolean

参数

dataSource
IDataSource

一个 IDataSource,指定数据源控件以测试关联数据源视图对象。An IDataSource that specifies the data source control to test for associated data source view objects.

返回

Boolean

如果数据源控件包含数据源视图对象的集合,则为 true;否则为 falsetrue if the data source control contains a collection of data source view objects; otherwise, false.

示例

下面的代码示例演示了实现方法的数据源类的设计模式 IListSourceThe following code example demonstrates the design pattern for a data source class that implements the IListSource methods. ContainsListCollection属性调用静态 ContainsListCollection 方法。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);
}

#endregion
#Region "Implementation of IListSource"

ReadOnly Property ContainsListCollection() As Boolean Implements IListSource.ContainsListCollection
   Get
      Return ListSourceHelper.ContainsListCollection(Me)
   End Get
End Property


Function GetList() As IList Implements IListSource.GetList
   Return ListSourceHelper.GetList(Me)
End Function 'IListSource.GetList

#End Region

注解

在属性的实现中使用此方法 ContainsListCollection ,将引用传递到数据源控件。Use this method in an implementation of the ContainsListCollection property, passing a reference to a data source control.

适用于

另请参阅