EntityDataSource::OrderByParameters Property
Gets the collection of parameters that are used to create the ORDER BY clause.
Assembly: System.Web.Entity (in System.Web.Entity.dll)
[PersistenceModeAttribute(PersistenceMode::InnerProperty)] [BrowsableAttribute(false)] public: property ParameterCollection^ OrderByParameters { ParameterCollection^ get (); }
Property Value
Type: System.Web.UI.WebControls::ParameterCollectionThe parameters that are used for creating the ORDER BY clause.
When the AutoGenerateOrderByClause property of the EntityDataSource control is set to true, the control automatically generates an ORDER BY clause from the parameter in the ParameterCollection assigned to the OrderByParameters property. This eliminates the need to explicitly assign an ORDER BY clause to the OrderBy property. The construction of the ORDER BY clause from the OrderByParameters property requires that the Name property of the parameter in the collection identifies a single property of the item that is returned from the query.
The following example automatically generates the ORDER BY clause and uses the value of the orderByDropDownList to set the value of the parameter.
<asp:EntityDataSource ID="SalesOrderHeader" runat="server"
ConnectionString="name=AdventureWorksEntities"
DefaultContainerName="AdventureWorksEntities" EnableDelete="True"
EnableInsert="True" EnableUpdate="True" EntitySetName="SalesOrderHeader"
Where="it.OnlineOrderFlag = true" AutoGenerateOrderByClause="True">
<OrderByParameters>
<asp:ControlParameter Name="OrderByParameter"
ControlID="orderByDropDownList" Type="String" />
</OrderByParameters>
</asp:EntityDataSource>
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
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.