CSharp Deleting Data With Detailsview Control – ADO.Net Database

<%@ 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" >
<head id="Head1" runat="server">
    <title>Show Delete</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>    <asp:DetailsView
        id="dtlProducts"
        AllowPaging="true"
        DataSourceID="srcProducts"
        DataKeyNames="Id"
        AutoGenerateInsertButton="true"
        AutoGenerateDeleteButton="true"
        AutoGenerateRows="false"
        Runat="server">
        <fields>
        <asp:BoundField
            DataField="Id"
            HeaderText="ID:"
            InsertVisible="false" />
        <asp:BoundField
            DataField="Title"
            HeaderText="Title:" />
        <asp:BoundField
            DataField="Director"
            HeaderText="Director:" />
        <asp:CheckBoxField
            DataField="InStocks"
            HeaderText="In Stocks:" />
        </fields>
    </asp:DetailsView>    <asp:SqlDataSource
        id="srcProducts"
        ConnectionString="<%$ ConnectionStrings:Products %>"
        SelectCommand="SELECT Id,Title,Director,InStocks FROM Products"
        InsertCommand="INSERT Products (Title,Director,InStocks) VALUES (@Title,@Director,
        DeleteCommand="DELETE Products WHERE id=@Id"
        Runat="server" />    </div>
    </form>
</body>
</html>File: Web.config<configuration>
  <connectionStrings>
    <add name="Products"
         connectionString="Data Source=.\SQLEXPRESS;
         AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
  </connectionStrings>
</configuration>

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