Using Data Keys : GridView « ADO.net Database « ASP.Net

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ASP.Net » ADO.net Database » GridView 
Using Data Keys


<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
   "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >

<body>
    <form id="form1" runat="server">
    <asp:GridView
        id="grdEmployees"
        DataSourceID="srcEmployees"
        DataKeyNames="LastName,FirstName"
        AutoGenerateSelectButton="true"
        SelectedRowStyle-CssClass="selectedRow"
        Runat="server" />
    <asp:DetailsView
        id="dtlEmployees"
        DataSourceID="srcEmployeeDetails"
        Runat="server" />
    <asp:SqlDataSource
        id="srcEmployees"
        ConnectionString="<%$ ConnectionStrings:Employees %>"
        SelectCommand="SELECT LastName,FirstName
            FROM Employees"
        Runat="server" />
    <asp:SqlDataSource
        id="srcEmployeeDetails"
        ConnectionString="<%$ ConnectionStrings:Employees %>"
        SelectCommand="SELECT * FROM Employees
            WHERE FirstName=@FirstName AND LastName=@LastName"
        Runat="server">
        <SelectParameters>
        <asp:ControlParameter
            Name="FirstName"
            ControlID="grdEmployees"
            PropertyName='SelectedDataKey("FirstName")' />
        <asp:ControlParameter
            Name="LastName"
            ControlID="grdEmployees"
            PropertyName='SelectedDataKey("LastName")' />
        </SelectParameters>
     </asp:SqlDataSource>

    </form>
</body>
</html>


File: Web.config

<configuration>
  <connectionStrings>
    <add name="Employees" 
         connectionString="Data Source=.\SQLEXPRESS;
         AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
  </connectionStrings>
</configuration>     

 
Related examples in the same category
1. Displaying data in database table with the GridView control.
2. The GridView control supports programmatic databinding
3. Selecting Data
4. Paging Through Data
5. Sortable GridView
6. Change row style for higher value
7. Highlight Rows
8. Numeric Format Strings
9. Time and Date Format Strings
10. GridView custom paging with ObjectDataSource
11. GridView format event
12. Turn off the GridLine
13. GridView selection style
14. GridView Summaries
15. Using the RowDeleted event to catch SQL errors (C#)
16. Using the RowDeleted event to catch SQL errors (VB)
17. Adding a delete link to the GridView
18. Checking for Update errors using the RowUpdated event (C#)
19. Checking for Update errors using the RowUpdated event (VB)
20. Turning off AutoGenerateColumns in the GridView control
21. Using the RowCreated Event to programmatically change the style
22. Adding Indicators to display Sorting Direction
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