SqlDataSource FormView GridView

<% @ Page Language = " C# "   %>

< script  runat ="server" >

     void  EmployeesGridView_OnSelectedIndexChanged(Object sender, EventArgs e)
    {
        EmployeeDetailsSqlDataSource.SelectParameters[ " EmpID " ].DefaultValue  =
          EmployeesGridView.SelectedValue.ToString();
        EmployeeFormView.DataBind();
    }

     void  EmployeeFormView_ItemUpdated(Object sender, FormViewUpdatedEventArgs e)
    {
        EmployeesGridView.DataBind();
    }

     void  EmployeeFormView_ItemDeleted(Object sender, FormViewDeletedEventArgs e)
    {
        EmployeesGridView.DataBind();
    }

     void  EmployeeDetailsSqlDataSource_OnInserted(Object sender, SqlDataSourceStatusEventArgs e)
    {
        System.Data.Common.DbCommand command  =  e.Command;

        EmployeeDetailsSqlDataSource.SelectParameters[ " EmpID " ].DefaultValue  =
          command.Parameters[ " @EmpID " ].Value.ToString();

        EmployeesGridView.DataBind();
        EmployeeFormView.DataBind();
    }

</ script >

< html >
< body >
     < form  id ="Form1"  runat ="server" >
         < h3 >
            FormView Example </ h3 >
         < table  cellspacing ="10" >
             < tr >
                 < td >
                     < asp:GridView  ID ="EmployeesGridView"  DataSourceID ="EmployeesSqlDataSource"  AutoGenerateColumns ="false"
                        DataKeyNames ="EmployeeID"  OnSelectedIndexChanged ="EmployeesGridView_OnSelectedIndexChanged"
                        runat ="Server" >
                         < HeaderStyle  BackColor ="Navy"  ForeColor ="White"   />
                         < Columns >
                             < asp:ButtonField  Text ="Details..."  HeaderText ="Show<BR>Details"  CommandName ="Select"   />
                             < asp:BoundField  DataField ="EmployeeID"  HeaderText ="Employee ID"   />
                             < asp:BoundField  DataField ="LastName"  HeaderText ="Last Name"   />
                             < asp:BoundField  DataField ="FirstName"  HeaderText ="First Name"   />
                         </ Columns >
                     </ asp:GridView >
                 </ td >
                 < td  valign ="top" >
                     < asp:FormView  ID ="EmployeeFormView"  DataSourceID ="EmployeeDetailsSqlDataSource"  DataKeyNames ="EmployeeID"
                        GridLines ="Both"  OnItemUpdated ="EmployeeFormView_ItemUpdated"  OnItemDeleted ="EmployeeFormView_ItemDeleted"
                        runat ="server" >
                         < HeaderStyle  BackColor ="Navy"  ForeColor ="White"   />
                         < RowStyle  BackColor ="White"   />
                         < EditRowStyle  BackColor ="LightCyan"   />
                         < ItemTemplate >
                             < table >
                                 < tr >
                                     < td  align ="right" >
                                         < b >Employee ID: </ b ></ td >
                                     < td >
                                         <% #  Eval ( " EmployeeID " )  %>
                                     </ td >
                                 </ tr >
                                 < tr >
                                     < td  align ="right" >
                                         < b >Employee Name: </ b ></ td >
                                     < td >
                                         <% #  Eval ( " FirstName " )  %>
                                     </ td >
                                 </ tr >
                                 < tr >
                                     < td  align ="right" >
                                         < b >Category: </ b ></ td >
                                     < td >
                                         <% #  Eval ( " LastName " )  %>
                                     </ td >
                                 </ tr >
                                 < tr >
                                     < td  colspan ="2" >
                                         < asp:LinkButton  ID ="EditButton"  Text ="Edit"  CommandName ="Edit"  runat ="server"   />
                                         &nbsp;
                                         < asp:LinkButton  ID ="NewButton"  Text ="New"  CommandName ="New"  runat ="server"   />
                                         &nbsp;
                                         < asp:LinkButton  ID ="DeleteButton"  Text ="Delete"  CommandName ="Delete"  runat ="server"   />
                                     </ td >
                                 </ tr >
                             </ table >
                         </ ItemTemplate >
                         < EditItemTemplate >
                             < table >
                                 < tr >
                                     < td  align ="right" >
                                         < b >Employee ID: </ b ></ td >
                                     < td >
                                         <% #  Eval ( " EmployeeID " )  %>
                                     </ td >
                                 </ tr >
                                 < tr >
                                     < td  align ="right" >
                                         < b >First Name: </ b ></ td >
                                     < td >
                                         < asp:TextBox  ID ="EditFirstNameTextBox"  Text ='<%#  Bind("FirstName") % >' runat="Server" /> </ td >
                                 </ tr >
                                 < tr >
                                     < td  align ="right" >
                                         < b >Last Name: </ b ></ td >
                                     < td >
                                         < asp:TextBox  ID ="EditLastNameTextBox"  Text ='<%#  Bind("LastName") % >' runat="Server" /> </ td >
                                 </ tr >
                                 < tr >
                                     < td  colspan ="2" >
                                         < asp:LinkButton  ID ="UpdateButton"  Text ="Update"  CommandName ="Update"  runat ="server"   />
                                         &nbsp;
                                         < asp:LinkButton  ID ="CancelUpdateButton"  Text ="Cancel"  CommandName ="Cancel"  runat ="server"   />
                                     </ td >
                                 </ tr >
                             </ table >
                         </ EditItemTemplate >
                         < InsertItemTemplate >
                             < table >
                                 < tr >
                                     < td  align ="right" >
                                         < b >First Name: </ b ></ td >
                                     < td >
                                         < asp:TextBox  ID ="InsertFirstNameTextBox"  Text ='<%#  Bind("FirstName") % >' runat="Server" /> </ td >
                                 </ tr >
                                 < tr >
                                     < td  align ="right" >
                                         < b >Last Name: </ b ></ td >
                                     < td >
                                         < asp:TextBox  ID ="InsertLastNameTextBox"  Text ='<%#  Bind("LastName") % >' runat="Server" /> </ td >
                                 </ tr >
                                 < tr >
                                     < td  colspan ="2" >
                                         < asp:LinkButton  ID ="InsertButton"  Text ="Insert"  CommandName ="Insert"  runat ="server"   />
                                         &nbsp;
                                         < asp:LinkButton  ID ="CancelInsertButton"  Text ="Cancel"  CommandName ="Cancel"  runat ="server"   />
                                     </ td >
                                 </ tr >
                             </ table >
                         </ InsertItemTemplate >
                     </ asp:FormView >
                 </ td >
             </ tr >
         </ table >
         < asp:SqlDataSource  ID ="EmployeesSqlDataSource"  SelectCommand ="SELECT EmployeeID, FirstName, LastName FROM Employees"
            ConnectionString ="<%$ ConnectionStrings:NorthwindConnection %>"  runat ="server" ></ asp:SqlDataSource >
         < asp:SqlDataSource  ID ="EmployeeDetailsSqlDataSource"  SelectCommand ="SELECT EmployeeID, LastName, FirstName FROM Employees WHERE EmployeeID = @EmpID"
            InsertCommand ="INSERT INTO Employees(LastName, FirstName) VALUES (@LastName, @FirstName); 
                         SELECT @EmpID = SCOPE_IDENTITY()"  UpdateCommand ="UPDATE Employees SET LastName=@LastName, FirstName=@FirstName 
                           WHERE EmployeeID=@EmployeeID"  DeleteCommand ="DELETE Employees WHERE EmployeeID=@EmployeeID"
            ConnectionString ="<%$ ConnectionStrings:NorthwindConnection %>"  OnInserted ="EmployeeDetailsSqlDataSource_OnInserted"
            runat ="server" >
             < SelectParameters >
                 < asp:Parameter  Name ="EmpID"  Type ="Int32"  DefaultValue ="0"   />
             </ SelectParameters >
             < InsertParameters >
                 < asp:Parameter  Name ="EmpID"  Direction ="Output"  Type ="Int32"  DefaultValue ="0"   />
             </ InsertParameters >
         </ asp:SqlDataSource >
     </ form >
</ body >
</ html >