This topic presents how to enable sorting for GridHyperLinkColumn/GridTemplateColumn. To summarize, you need to set appropriate SortExpressions for those columns and DataTextField (for the hyperlink column) and binding expression (for the template column). The code below represents sample implementation:
| ASPX/ASCX |
 Copy Code |
<rad:RadGrid ID="RadGrid1" DataSourceID="AccessDataSource1" AllowSorting="True"
Skin="WinXP" runat="server" Width="400px">
<MasterTableView AutoGenerateColumns="false" AllowSorting="true">
<Columns>
<rad:GridHyperLinkColumn DataTextField="Country" NavigateUrl="http://www.telerik.com" HeaderText="Country"
SortExpression="Country" />
<rad:GridTemplateColumn UniqueName="TemplateColumn" HeaderText="City" SortExpression="City">
<ItemTemplate>
<%# Eval("City") %>
</ItemTemplate>
</rad:GridTemplateColumn>
</Columns>
</MasterTableView>
</rad:RadGrid>
<br />
<asp:AccessDataSource ID="AccessDataSource1" DataFile="~/Grid/Data/Access/Nwind.mdb"
SelectCommand="SELECT TOP 10 Country, City FROM Customers"
runat="server"></asp:AccessDataSource> |
When using a GridTemplateColumn or other custom command buttons to apply sorting, you should set CommandName to Sort and sort-expression as CommandArgument for that header button.
| ASPX/ASCX |
Copy Code |
|
<rad:GridTemplateColumn SortExpression="CompanyName">
<HeaderTemplate>
<asp:Button id="Button42" Text="GridTemplateColumn" Title="Sort by CompanyName" CommandName='Sort' CommandArgument='CompanyName' runat="server" />
</HeaderTemplate>
... |
In this case Telerik RadGrid will handle the sorting and put the sorting indicator image automatically in the column header.