ASP "Hello World"

Bill_Thompson · December 13th, 2007, 08:13 PM

I have written my first "Hello World" program in ASP. I thought I would post here how it is done and ask if anyone can suggest how to incorporate C#.

The first step was to download the free "Microsoft Visual Web Developer 2005 Express Edition" from microsoft.com

The next step was to install and run this program. Then create a new web page by clicking on File -> New Web Page. This will bring up this windowL

http://i67.photobucket.com/albums/h2...o/aspnet05.png

From this window, pick "ASP.Net Web Site" and click the OK button.

Then I edited the Default.aspx file so it reads like this:

Code:

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<%
    HelloWorldLabel.Text = "Hello, world!"
%>

<!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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:Label runat="server" id="HelloWorldLabel"></asp:Label>

    </div>
    </form>
</body>
</html>

And this works.

So the next step is to incorporate C# into this "Hello World" program. Can anyone make a suggestion?

dparsons · December 13th, 2007, 08:19 PM

You can not mix and match languages in the same project. You can, for example, create a class library in VB.NET and use the compiled .dll in a C# application. The equivelant C# code for the above example is:

protected void Page_Load(object sender, EventArgs e)
{
HelloWorldLabel.Text = "Hello, world!";
}

also, in reality, your code above should be:
Protected Sub Page_Load(sender as object, e as EventArgs)
HelloWorldLabel.Text = "Hello, World"
End Sub

hth.

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planoie · December 14th, 2007, 02:12 AM

Doug,

You are slightly wrong here. If you are creating a "Web Site Project" (i.e. just a directory with pages and files in it) each page can be a different language. The ASP.NET runtime compiles each individual page separately on the fly. However, if you are use the "Web Application Project" it behaves like every other project type in VS.NET. All the files must be the same language because it compiles all files into the single assembly.

-Peter

dparsons · December 14th, 2007, 09:38 AM

Thanks for the clarification Peter. I have never used the "Web Site Project" and was unaware of that particular functionality. Thanks.

================================================== =========
Read this if you want to know how to get a correct reply for your question:
http://www.catb.org/~esr/faqs/smart-questions.html
================================================== =========
.: Wrox Technical Editor :.
Wrox Books 24 x 7
================================================== =========