ASP.NET is a technology for creating dynamic Web applications. It is part of the .NET Framework; you can author ASP.NET applications in most .NET compatible languages, including Visual Basic, C#, and J#.
So you can apply object oriented programming (use classes) while creating web applications using ASP.NET using C#, VB.NET or other .NET compatible languages.
In fact, ASP.NET, being a framework that is used with C# and VB.NET, is incapable of working WITHOUT using classes.
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I would put it this way ASP.NET UI uses server controls that are completely object oriented. If you see page attribute you will see that page inherites from the code behind class.. So the answer to your question is yes.
I am a novice in .NET development.
Currently, i am exploring UIP v2.0. I understand that the current UIP Application block (UIPAB) version 2.0 was developed for Visual Studio 2003.
As i am upgrading from Visual Studio 2003 to 2005, i would like to explore UIPAB in VS2005, i have found examples in VS2003 but couldnt find any examples or source code for VS2005. I find UIP a very gd concept that could be explored and applied in upcoming projects. Is it advisable to use UIPAB v2.0 using VS2005? Is it compatible? What are the prevailing problems? If not, which version of UIPAB is suitabble for developing applications in VS2005?
I have very irritating problem with running ASPNET 2.0 project.
I've created a new web site and when I want to run it (F5) I get an error: 'ASP.NET runtime error: Unexpected end of file while parsing Comment has occurred. Line 417, position 1. (C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config line 417) c:\inetpub\wwwroot\mrs\Default.aspx' pointing to <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
.NET version is 2.0.50727.42.
It worked before.
I just started on ASPNET20 project and I get this f-ing error.
You have a problem in your root web.config file. Have you been making manual changes to this file? Go to the web.config file from the error path and look at line 417. Most likely you are somebody else added something to the web.config that is not valid. You might be missing a closing tag or something.
I have been making changes to this file, but after that error occurred and I only comment all those inside web.config leaving only <configuration> node, but then I get: "No http handler was found for request type 'GET'".
The problem is that 417th line doesn't exist in this web.config file. 415 is the last line.
When I was trying to workaround this problem, I noticed that VS.NET highlighed this in web.config in c:\windows...
I don't think changing that version will help. That is the dll version which is not the same as the framework version. If that line was getting highlighted then there is a good chance that the error in the config file is somewhere around there. It could be the line before or after. I think if you could put that config file back to its orginal state and then see if you still get the error. I would guess that you would not. Then if you start from that point and slowly add one new line at a time, you migth be able to figure out where the error is. The config file errors can often be a pain. It can sometimes be something simple like a missing
< or >, but sometimes it is not having things in the correct sections, which can be harder to figure out.
My understanding is that recently you must have added the code behind class in some namespace so what you need to do is
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Namespace.classname" %>
Also just in case if there is still some problem then see the web.config all the sections are properly typed, even change in case could can emit some errors
I'd like to understand, where in the resulting ..._aspx class goes inline code,
found on the page inside code brackets.
I want to create the dynamic page, where the existence of controls is managed by parameters,
say, from querystring.
You could do it that way, but I would suggest looking at the Placeholder control and something to use to hide or show your controls. On you page load even you can check the query string and show or hide the correct placeholders that have the controls in them.
Thank you for your reply. I'll look at this control (I'm new enough in ASP.NET).
But my question was not exactly "how to do", but rather "how it works".
That's why I'm trying to understand what is going on under the hood.
With the placeholder control, when it is set to false, that html is not rendered in the page. I don't think you would see any performance issue. The code that you had for your example could have some performace issues since it is parsed.
So, if I've understand right, the inline code goes to the Render method
of the resulting class?
As for Placeholder control, I have to learn it in comparison to Panel
or simply adding controls to the page collection in the Load event handler.
From the glance I cannot see great difference between these three options for my case.
May be in the event propagation model?
This is exactly what I'd like to understand - when and where.
But think, even the placeholder will not be a good alternative.
More I think about it - more I incline to the idea, that the best decision in my case would be
to write the kind of page generator, that will create "static" aspx pages (about 100)
on the base of page template and type definitions from the DB.
This has to provide the performance benefit, yet supporting the desired level of flexibility and
managability. I hope ...
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