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Asked: 2026-05-23T07:43:15+00:00

I’m trying to include a common navigation page into each aspx page. The code

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I’m trying to include a common navigation page into each aspx page. The code looks something like this:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"      Inherits="canada_Default" %>

<!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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
    <%         
        Response.WriteFile("../include/navigation.aspx");
    %>

</div>
</form>

Here is the navigation.aspx code:

<form id="form1" runat="server">
<div>
<asp:DropDownList ID="ddlSites" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ddlSites_SelectedIndexChanged">
    <asp:ListItem Selected="True" Text="Global websites" Value="" />
    <asp:ListItem Text="Australia" Value="" />
    <asp:ListItem Text="Canada" Value="" />
    <asp:ListItem Text="Ireland" Value="" />
    <asp:ListItem Text="Japan" Value="" />
    <asp:ListItem Text="Latin America and the Caribbean" Value="" />
    <asp:ListItem Text="Middle East" Value="" />
    <asp:ListItem Text="New Zealand" Value="" />
    <asp:ListItem Text="Portugal" Value="" />
    <asp:ListItem Text="Singapore" Value="" />
    <asp:ListItem Text="Spain" Value="" />
    <asp:ListItem Text="United Kingdom" Value="" />
    <asp:ListItem Text="United States" Value="" />
</asp:DropDownList>

The dropdownlist is not displaying in the browser. I know one way is to use a Master page (which I plan on doing one day), but for this project, I would like to do something simple like this — it’s crude but functional.

Thanks for your help!

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1 Answer

  1. Editorial Team

    Take a look at using User Controls: ASP.NET User Controls Overview (MSDN).

    Quote from the MSDN page:

    User controls are substantially easier
    to create than custom controls,
    because you can reuse existing
    controls. They make it particularly
    easy to create controls with complex
    user interface elements.

    Also, take a look at this MSDN link: How to: Include a User Control in an ASP.NET Web Page

    You would create your User Control (.ascx) and include it as follows:

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"      Inherits="canada_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ Register TagPrefix="uc" TagName="uc1" Src="~/myUserControl.ascx" %>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
    <uc:uc1 id="myUC" runat="server" />
</div>
</form>
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