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How can I load page content with freeze header on postback?

I'm using asp.net and c#.net.
I'm gonna implement a website that has content navigation like that Microsoft did on this link:
Microsoft Windows
In this link you're able to browse page content with freeze header on postback
and also you're able to browse videos from left Navbar without page postback.
The important thing is for each click url is changed.
Any ideas or help would be appreciated.
Thanks and regards

First off, to clarify, postbacks are only required if you're submitting form elements. If you're creating a webforms application, you can easily use controls like HyperLink with a NavigationUrl to navigate among URLs without needing postbacks.
If what you mean is that you're seeing the page partially updating when following links, that's not what I'm experiencing. The pages appear to completely reload when the links in that page are clicked. In your own site, you can use AJAX and JavaScript to implement a navigation system that doesn't require heavy navigation requests. Look at Manipulating the browser history (MDN) for information on exciting new JavaScript features that will let you modify the browser's URL/history without reloading the page. There are several JS libraries that integrate with this feature to give you "AJAX" navigation capabilities.
To simply get the header to not scroll along with the rest of the page, use position: fixed in the CSS for the element.

JavaScript generated web page issue

I have a problem with javascript generated web page. I have a web page on the internet that is generated by javascript. I am working on changing a web page using wpf web browser control. I have to make some changes to the web page by inserting jquery, and changing css and hiding some elements.
Here is the issue.
Application works ok most of the time, but sometimes, for reasons unknown, it does not change the css or hides the elements. I presume that it has something to do with the javascript that actually generates the page. My code is executed, but no changes are made, so I presume that the script cannot find the elements in the page because they do not exist in the page, at the time of the execution of my scripts. This is just an assumption.
I need help resolving this issue. I have tried delaying the execution of my scripts for n seconds, waiting for body.ready, document.ready and window.ready, but nothing helped. Also, I use wpf web browsers LoadCompleted event, but... From time to time, the script simply makes no effect on the page. Did somebody have this issue, does anyone have any idea how to solve it?
Thank you very much in advance...

When building single page apps, always use a framework like Backbone or Sammy.js together with Mustachejs (or Hogan.js) for templating.
Since we don't have any code to look at, if you're using jQuery, I suggest you check out .live() and .on() for attaching event handlers to elements you plan on loading into a div (making them clickable) etc.

Telerik chart not loading correctly (ajax/script issue?)

I have a page which contains user controls with Telerik Charts (grids also, but they work fine). From this page, the user can click on a button to be redirected to a "Printer-Friendly Version" type page, which opens a new window via javascript and goes through a slightly different view (for formatting and stuff), but the telerik code is all the same.
The problem is, my Chart displays just fine in the original window, but the new window displays basically an empty chart with no data. This bug is only present in IE, and only applies to Charts. Grids work fine, for whatever reason. I'm thinking this is due to differences in script caching between browsers -- correct me if I'm wrong, I'm semi-new to client-directed web development.
Anyway I read somewhere that Telerik has issues with loading data and/or js files when loaded via ajax, so maybe that's the problem? If so, how could I get around this? And if not, any ideas on what could be causing this issue? It's causing me a great deal of frustration, since a print preview page seems like it should be the easiest of jobs.
Edit:
The charts are being rendered as html (if somebody can explain how to render them as images, that would be awesome). And dev tools shows basically the same thing between chrome and IE. Whenever my web service goes back up ill WinMerge them and look for any peculiarities/differences between them. In the mean time, though, the "render as an image" concept sounds promising. That way I could just save the image from the first page, and insert it right into the print preview page, right?. And since it's a print-preview page, it's not going to need to be interactive or anything, so that'd work out nicely.
Another (important) Edit:
These are probably the culprit...
And here is a little more detail on that:
And here is a side-by-side of it working(in chrome) and not working (in IE):

Have you considered using a print-specific stylesheet instead, e.g.
<link rel="stylesheet" type="text/css" media="print" href="print.css" />
In which you specify the styling to apply when printing.
That way, you avoid reloading the page (duplicate database hits, etc.) and don't need to delve into the AJAX of Telerik's controls.
EDIT:
Regarding using an image rather than HTML, first make sure you won't lose any features/detail, then check out the .Save() method of the RadChart control. You could either save it to a memory stream, or if you want to re-use the image save it to a directory on the webserver and clean it up periodically. That way, you can just point your print version to the image and not re-generate it.
This Telerik forum post may be of use.

Webbrowser and IE acts differently?

I'm in a trouble trying to fix some problem.. I have a program with Webbrowser control inside it.
It automates crawling process from some website. The problem is that I cannot fix webbrowser after recent website changes.
They have changed page navigation on website. And when I do actions MANUALLY in webbrowser (in my app) it doesn't go to the next/previous page on website. It does nothing... Whereas it works properly in IE 7/8/9 (only scripting errors thrown this time).
So does it mean that Webbrowser is not fully similar to IE??
I'm sorry for not showing source codes here, I think it wouldn't help here. Which way should I go to troubleshoot it? Why page navigation is not working in Webbrowser control?
I tried to simply put Webbrowser on a Window Form in new project and tried to navigate page 2/3/../10 in the website catalog, but it simply changes page number and doesn't navigate to it...
EDIT: Website doesn't work propely even if I do actions manually in webbrowser using mouse clicks.. but works in IE.
EDIT2: I might be not clear in my question. The problem is that I cannot use website even Manually with mouseclicks via my Webbrowser control in app. It changes page number after I click on it, but it doesn't navigate to that page. It stays silent. I'm sure that AllowNavigation property is true. It worked just yesterday and stopped after website changes today... Please tell me which way should I go to troubleshoot it.. I thought that Webbrowser control acts the same way as Internet Explorer.. Any help from you highly appreciated! Thanks
EDIT3: Strange thing... i just loaded Extended Webbrowser and navigated to that website. Page navigation panel doesn't work there also.. Is it a bug on their side or some type of guard from crawlers? What do you think?
(http://www.codeproject.com/KB/cpp/ExtendedWebBrowser.aspx)

I'm sure this isn't the answer your want but using the webbrowser control to scrape websites is very painful to maintain.
Instead use the HttpWebRequest and HttpWebRepsonse objects to recreate the calls to the webserver.
You can use Fiddler (http://www.fiddler2.com/fiddler2) and your browser to record your web sessions and recreate them in code.

You can setup your webbrowser control to disable a number of features including navigation.
I.e. to disable nav in the C# WebBrowser control:
webBrowser1.AllowNavigation = false;
I'd double check that you're not doing anything like this.

I had the same issue with a certain web site that recently changed its format. It has to do with the version of IE used by the control.
Simply force the IE version used to the latest (in my case 9). Setting the appropriate registry item to 9999 for my application worked; see: Webbrowser control behaving different than IE

Form POST in ASP.NET

I'm trying to convert a classic ASP page to ASP.NET 3.5. The page has several forms on it for several different things.
In ASP.NET, there's a server form control wrapping the entire page, and form controls don't work within a server form control, and you can't have more than one server form control on a page.
So in order to keep this functionality, I can either:
Remove the server form control that's wrapping the page, and leaving the html forms on the page.
Create button click events for every form and perform the POST in the code-behind.
What's the preferred method here?

I wonder if converting to vanilla asp.net (aka webforms) is a bad idea here. Personally I'd go to MVC instead - allows multiple forms etc, and the views are much closer to he HTML, a lot like ASP.
I guess I'm saying there are some glitches vanilla asp.net introduces that you don't have to suffer.

I would go with the second option, any button click is going to post the whole page back anyway so you're not saving any bandwidth. Simply handle each button appropriately.

Check the answer I provided to a similar question here :-)
How to get past embedding a html form for paypal buttons asp.net
If you're going to use different button clicks, you still need to use this override to disable the non-related buttons in each handler, otherwise it won't work. You can only have one form tag at a time - this way you can toggle/disable the ones you're not using as appropriate.
Better still, refactor your application to use a single form. While MVC would be a closer match to the model you're using right now, it wouldn't make sense to go that route unless you were experienced enough with it; Web Forms is an easier jump.