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Jim H #1
Beginner needs help -- Simple AspNet Component
I coded my first asp form and attempted to display a text message from a component. The static text "Our component
says:" shows on the aspx page, but the text line from the component does not show. No errors are produced.
Can someone get me started down the right path with aspnet?
The two modules are shown below. The solution, less the .dll and .pdb files, can ge grabed at
[url]http://psiprograms.com/Programs/HelloWorld.zip[/url] (about 16 Kb).
Thanks, Jim Holloman
----aspx page-------------------------------------------------------------------
<%@ Import Namespace="HelloWorldApp" %>
<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="HelloWorldApp.WebForm1" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>WebForm1</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
Our component says: < br /> < br />
<asp:Label ID="Labe11" runat="server"></asp:Label>
<!-- Putting the code within the "form" creates a server error indicating that Page_Load()
is already defined -->
<!--
<script language="C#" runat="server">
void Page_Load( Object sender, EventArgs e )
{
HelloWorld oHelloWorld = new HelloWorld();
Labe11.Text = oHelloWorld.SayHello();
}
</script>
-->
</form>
<!-- This code apparently does nothing! -->
<script language="C#" runat="server">
void Page_Load( Object sender, EventArgs e )
{
HelloWorld oHelloWorld = new HelloWorld();
Labe11.Text = oHelloWorld.SayHello();
}
</script>
</body>
</HTML>
----Hello World component-------------------------------------------------------
using System;
namespace HelloWorldApp
{
/// <summary>
/// Summary description for Class1.
/// </summary>
public class HelloWorld
{
public HelloWorld()
{
// TODO: Add constructor logic here
}
public string SayHello()
{
return "Hello World -- form a C# component developed with the Visual Studio IDE \n\n";
}
}
}
Jim H Guest
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Natty Gur #2 Re: Beginner needs help -- Simple AspNet Component
Hi,
that Page_Load()>Putting the code within the "form" creates a server error >indicating
You have two ways that you can write your server code : using code
behind (personally, i prefer it) or embedding the code in the ASPX file
(as you do) but you cant do them both.
Remove the code that attach the page load event (this.Load +=
EventHandler(Page_load)) and you wont get the above error. Or write
server side code in the code behind.
Natty Gur, CTO
Dao2Com Ltd.
28th Baruch Hirsch st. Bnei-Brak
Israel , 51114
Phone Numbers:
Office: +972-(0)3-5786668
Fax: +972-(0)3-5703475
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Know the overall picture
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