What does update panel do? - asp.net

I am quite new to asp.net and i want to know what exactly does update panel do.
I've looked into several answers regarding the question, but i can't seem to understand.
Can someone explain it to me in more simplistic manner?
Thanks.
Best Regards,
Rico

Update panel is used to execute ASP.NET Ajax calls.
Read more about it here

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caching fault and advantage

I search a lot but cannot find complete answer or paper about caching.
I use asp.net 4.5 and work with 3 layers to create website.
I want to know about cach,types and fault,advantage.when I cach a usercontrol in asp.net what save in cach and other things.
I know primary about it but i want advanced.
please give me a link of Comprehensive and powerfull paper or article about it.
Thank you in advance.
Please check below link,
http://www.c-sharpcorner.com/UploadFile/2072a9/caching-in-Asp-Net/[^]
http://www.tutorialspoint.com/asp.net/asp.net_data_caching.htm
Caching in ASP.NET

Anybody explain meteor easy search for users collection with helper and event function with example?

Am facing a lot of problem in search & am new to development field.
Could anybody please help me...
Anybody explain meteor easy search for users collection with helper and event function with code example?
This tutorial should help.
probably this website has all the basic thing to start you up with meteor tutorial. I dont know about others but this helped. this is a good resource to take you forward.

find the best solution for partial rendering

I need an update panel but I don't want it to affect performance. Update panels make my web application slow, and I don't know why?
Is update panel dangerous, and how I can fix my problem? Is there any good solution for partial rendering?
There's a great article here: UpdatePanel Tips and Tricks which illustrates some of the pitfalls and ways to use it better.
I loathe the ACToolkit. Knockout.js is easy to use and fast. A much better solution IMO.

asp.net web application

i am new for asp.net. i want to develop a simple web application(asp.net+c#) which display
questions and multiple choice answers and calculate result. i want to know which one is the best way for me to do it.
i want to use linq to sql.
please guide me.
thanks in advance and sorry if you feel my question style is bad.
Here is where you can start
http://www.asp.net/get-started
http://www.asp.net/web-forms
http://www.asp.net/mvc
http://www.codeproject.com/KB/aspnet/
Start by this examples...
Oh and here is something very close to what you ask
http://www.codeproject.com/KB/aspnet/MultipleChoiceExam.aspx

What would be the simplest way to implement Flexigrid with ASP.NET 3.5?

I've been trying to follow the top Google results for ASP.NET + Flexigrid for jQuery such as CodeProject's approach but they all seem kind of sophisticated, I'm rather looking for something way more basic in terms of simplicity, a kind of Hello World approach if you will. I'd be more than happy if you guys would like to share any resource that you might think would be helpful. Thanks much in advance!
This example seems fairly simple to me. How To Populating a FlexGrid Control with ADO and ASP
But if you are using ASP.NET 3.5, why would you use a flexgrid instead of a GridView?
simplest way would be to use someone else's code. have you seen http://www.flexigrid-asp.net

Resources