📄 overwritechanges.aspx
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="OverwriteChanges.aspx.cs" Inherits="OverwriteChanges" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>OverwriteChanges</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DetailsView ID="dviewEmployees" runat="server" Height="50px" Width="171px" AllowPaging="True" AutoGenerateRows="False" BackColor="LightGoldenrodYellow" BorderColor="Tan" BorderWidth="1px" CellPadding="2" DataKeyNames="EmployeeID" DataSourceID="SqlDataSource1" Font-Size="10pt" ForeColor="Black">
<FooterStyle BackColor="Tan" />
<EditRowStyle BackColor="DarkSlateBlue" ForeColor="GhostWhite" />
<PagerStyle BackColor="PaleGoldenrod" ForeColor="DarkSlateBlue" HorizontalAlign="Center" />
<Fields>
<asp:BoundField DataField="LastName" HeaderText="LastName" SortExpression="LastName" />
<asp:BoundField DataField="FirstName" HeaderText="FirstName" SortExpression="FirstName" />
<asp:BoundField DataField="EmployeeID" HeaderText="EmployeeID" InsertVisible="False"
ReadOnly="True" SortExpression="EmployeeID" />
<asp:BoundField DataField="City" HeaderText="City" SortExpression="City" />
<asp:BoundField DataField="Country" HeaderText="Country" SortExpression="Country" />
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" ShowInsertButton="True" />
</Fields>
<HeaderStyle BackColor="Tan" Font-Bold="True" />
<AlternatingRowStyle BackColor="PaleGoldenrod" />
</asp:DetailsView>
</div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
DeleteCommand="DELETE FROM [Employees] WHERE [EmployeeID] = @EmployeeID" InsertCommand="INSERT INTO [Employees] ([LastName], [FirstName], [City], [Country]) VALUES (@LastName, @FirstName, @City, @Country)"
SelectCommand="SELECT [LastName], [FirstName], [EmployeeID], [City], [Country] FROM [Employees]"
UpdateCommand="UPDATE [Employees] SET [LastName] = @LastName, [FirstName] = @FirstName, [City] = @City, [Country] = @Country WHERE [EmployeeID] = @EmployeeID">
<DeleteParameters>
<asp:Parameter Name="EmployeeID" Type="Int32" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="LastName" Type="String" />
<asp:Parameter Name="FirstName" Type="String" />
<asp:Parameter Name="City" Type="String" />
<asp:Parameter Name="Country" Type="String" />
<asp:Parameter Name="EmployeeID" Type="Int32" />
</UpdateParameters>
<InsertParameters>
<asp:Parameter Name="LastName" Type="String" />
<asp:Parameter Name="FirstName" Type="String" />
<asp:Parameter Name="City" Type="String" />
<asp:Parameter Name="Country" Type="String" />
</InsertParameters>
</asp:SqlDataSource>
</form>
</body>
</html>
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