ThenBy Class
Provides a way to apply a sort expression to an IQueryable data source object after an OrderByExpression expression is applied.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The ThenBy type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | DataField | Gets or sets the property of the IQueryable object to apply the ThenBy expression to. |
![]() | Direction | Gets or sets the ordering direction of the IQueryable data source object. |
| Name | Description | |
|---|---|---|
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
After a sort operation is performed by using the OrderByExpression expression in the QueryExtender control, subsequent sort operations can be performed by using the ThenBy class on a different data field.
The following example shows how to sort data by the ListPrice field in descending order and then on the ProductID field in ascending order using the ThenBy type. This code example is part of a larger example 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>
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.


