I upload 2 page and downloaded same page.I added 2 more control in that file.But my aspx page control are not visible in my .cs file.When I am compling it,error occur on cs file(ddlbrand is not exist in current context).I am using vs 2005.I don't have designer file.(Only aspx and cs file).
Check if your controls are well formed, if the problem exists than I think you can't do that without the whole project and the solution file. You need to make changes in the project with visual studio. All the controls you add in the page are also added to the designer file.
Web Application Projects compile the .CS files as part of the build, and compile the ASPX's on the fly referencing your pre-built codebehind DLL - that's why you have to recompile if you change the code behind.
No designer file means you are working in ASP.Net Website project.
Check your aspx markup it must be missing some closing tag or some important parameter like runat="server"
Related
I have a project I'm working on in a Visual Studio 2003 and SQL Server 2005 environment. Lately I've been having some trouble with the codebehind files for my ASPX web pages. Some pages are referring to codebehind from other pages.
Recently, for example, I copied a page from one of my projects to use it as a starting point (it is for a form with multiple pages), After renaming it, the codebehind and other files followed suit. However after modifying the page to what I needed, I found out that it was still referencing the old codebehind (making references to controls that are no longer there).
I checked the aspx code, and the reference is correctly pointing to the new codebehind. I've tried building and re-building the project several times, resetting the IIS, deleting temp files and modifying the web config. No dice.
If you copy a page in Visual Studio and rename it, it will automatically change the Codebehind attribute in the <%# Page declaration on the .aspx markup.
But what it won't do is change the name of the class in the codebehind file, or the class that the Inherits attribute on the declaration points to.
Firstly, change the Inherits to your new class name - this should automatically change the designer file to use the same class name.
Then change the class definition in the code-behind file.
I am using visual studio 2012. I have created a directory named "Handler" inside my project and added an aspx file along with .cs file (both downloaded from a third party tool) to it. All code is working fine.
Now, I have published project to another directory. In published directory I have marked that the in side "Handler" folder aspx page is there but not the .cs page.
Now, when ever I am requesting the aspx page inside "Handler", I am getting error 404 xxxx.aspx page not found. Now, if I am coping the path and hit the url for that page then I am getting error that xxxx.aspx.cs file not found.
As per my best knowledge, whenever we build the project, all the code will build to dll in bin folder. Then why this file is required .cs file?
Thanks.
This will depend on the attributes of the #Page directive of your aspx page
I guess your third party page #page directive holds a CodeFile attribute.
CodeFile attribute states that, even though the .aspx.cs gets compiled (let's say it just gets checked) in Visual Studio, the result of the compilation will not be put in the dll resulting of the build.
The .aspx.cs will be compiled, along with the .aspx upon first invocation.
This allows to edit your deployed aspx.cs and have the result available immediately (which can be seen as handy, or risky)
As per my best knowledge, whenever we build the project, all the code
will build to dll in bin folder. Then why this file is required .cs
file?
This is the case when being in the default case, having a CodeBehind attribute in the page directive,instead of a CodeFile attribute
See CodeBehind and CodeFile attributes in documentation for #Page element
Note that you can use CodeFile attribute in Web Application Projects. I do it all the time.
I have an ASP.NET ascx control. In the code behind file I need to add some reference (Sharepoint Libraries) to do some queries. How can I do that? Is a standalone control, I mean I have only the .ascx and the ascx.cs files. They are not part of any project so I don't have the tipical Property folder in the solution explorer, and they are loaded in a sharepoint page using the SmartPart control. So I'm little lost here, any help will be appreciated.
The simple answer is that you can't, In ASP.NET references are added to the web.config file of the application not the individual control. You would have to edit the SharePoint web.config file.
I found that if I put the dlls in a \bin folder at the same level of the control, I can use the code defined in it without problem. So I don't need to add a reference, by convention all dlls in that folder are available to my control. More clearly the file structure is like this:
\UserControls\bin\AnyCompiledLibrary.dll
\UserControls\AnyControl.ascx
I am quite new to .NET development and I am just wondering how does it work?
My undermentioned points are:
While developing ASP.NET application, under the project we have files like:
pagename.aspx
pagename.aspx.cs
pagename.asp.desiger.cs
After adding certain functionality to pagename.aspx page, assuming I have the development required web application (this is not my concern, what is developed)
Now I'm going to deploy this application, I use web deployment MSI which creates the required files in the one folder called folderdelopyed.
This folder contains the files required to support this application but interesting does not contain pagename.aspx.cs and pagename.aspx.designer.cs files.
My question is if folderdelopyed does not contain .cs file, then how does it work to run the segment of code which I have written in this file called PageName.aspx.cs?
The code in your cs files gets compiled into a dll.
For Web Application projects this is one dll
For Web Site projects, this is a dll per page.
All of the code is now in the dll's in the bin folder of the website.
You can use a tool like ILSpy (http://wiki.sharpdevelop.net/ILSpy.ashx) to look inside the dll's and see your code.
In the old days, for classic ASP, the script used to be embedded in your page - a mix of code and HTML, and was interpreted at runtime.
I like the new way more :-)
ASP.NET code is compiled into Dynamic-link library files, also known as DLL files.
The code you write in your code behind, which is the files with .cs extension, is compiled and put into whole new file, with .dll extension - and that file is copied to the server, to the BIN folder of your site.
Depending on what project type you choose, it's possible to have several DLL files for the web application, changing in every build - see dash's answer for more details.
On every .aspx page you have referece to what DLL file to use, as the very first line. For example:
<%# Page Language="C#" AutoEventWireup="true" CodeBehind="pagename.aspx.cs" Inherits="MyNameSpace.pagename" %>
In this example, the Inherits part determines what DLL to use. How? By the namespace, which is also the name of the DLL file.
When the above .aspx is requested by a browser, the .NET engine will go to the BIN folder, look for MyNameSpace.dll and in there look for class called pagename that inherits from the base Page class - all the rest is typical life cycle of ASP.NET page.
let me to say you something more Amazing.
you can hide your aspx file too.and put their content in to dll as same as your cs file put in dll.
you can make k aspx that just contain an address to the ddl file and no html body :D
that was greate!!! not only you can hide your cs file, you can hide you aspx file too :D
Let me just start by saying, if anyone knows of a good article that talks about this subject, please point me towards it.
Does code in an .aspx page (in between <% %> tags) get compiled in a web application or is it treated like markup where you can just change it without recompiling the solution? Does compiling only compile the code behind code in the .cs and designer.cs files ?
If you're developing in a 'Web Application Project' (as opposed to 'Web site') then any change to class (.cs), code-behind file (.aspx.cs), designer files, etc (basically anything that isn't markup or static files like .htm) would require a rebuild in Visual Studio.
All code within a .aspx file, in or out of code blocks (<%%>) gets compiled.
Changing an .aspx file will cause IIS to recompile it on the next request.
See MSDN - ASP.NET Dynamic Compilation.
Update (following comment):
As for development work - pretty much the same happens when you use the dev web server to view the page. You do not have to recompile the solution/project, but the page will get recompiled dynamically.