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OrderByExpression.ThenByExpressions Property

Gets or sets the collection of ThenBy expressions to apply after an OrderByExpression value is applied to the data source.

Namespace:  System.Web.UI.WebControls.Expressions
Assembly:  System.Web.Extensions (in System.Web.Extensions.dll)

[PersistenceModeAttribute(PersistenceMode.InnerDefaultProperty)]
public Collection<ThenBy> ThenByExpressions { get; }

Property Value

Type: System.Collections.ObjectModel.Collection<ThenBy>
The collection of ThenBy expressions to apply after the OrderByExpression is applied to the data source.

After a sort operation is performed by using the OrderByExpression in the QueryExtender control, subsequent sort operations can be performed by using the ThenByExpressions property.

The following example shows how to sort data by the ListPrice field in descending order and then by the product ID field in ascending order using the ThenByExpressions. This code example is part of a larger example that is provided in Walkthrough: Filtering Data in a Web Page Using Declarative Syntax.

<asp:OrderByExpression DataField="ListPrice" 
    Direction="Descending">
  <asp:ThenBy DataField="ProductID" Direction="Ascending"/>
</asp:OrderByExpression>

.NET Framework

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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