Various way of asynchronous programming done in c#

i like to know how many ways we can do the asynchronous programming in c#. i know one term only that is event driven asynchronous programming. i like to know other ways and their name. it will be helpful if anyone discuss each way with bit sample code.
thanks

The .NET Framework provides three patterns for performing asynchronous operations:
Asynchronous Programming Model (APM) pattern (also called the IAsyncResult pattern), where asynchronous operations
require Begin and End methods (for example,BeginWrite and EndWrite for
asynchronous write operations). This pattern is no longer recommended for new development. For more information, see Asynchronous Programming
Model (APM).
Event-based Asynchronous Pattern (EAP), which requires a method that has the Async suffix, and also requires one or more events, event handler delegate types, andEventArg-derived
types. EAP was introduced in the .NET Framework 2.0. It is no longer recommended for new development. For more information, see Event-based
Asynchronous Pattern (EAP).
Task-based Asynchronous Pattern (TAP), which uses a single method to represent the initiation and completion of an asynchronous operation. TAP was introduced in the .NET Framework 4 and is the recommended approach to asynchronous programming in the .NET Framework.
The async and await keywords
in C# and the Async and Awaitoperators
in Visual Basic Language add language support for TAP. For more information, see Task-based Asynchronous Pattern (TAP).
Refer: Asynchronous Programming Patterns
Rachit
Please mark as answer or vote as helpful if my reply does

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Various ways to place a File in the Application Server.

Hi all,
 What are the various ways to place a file in the application Server.
 Please classify them as shown below.
 1. Use of ABAP Code.
 2. Without the use of ABAP code.
Regards

Hi
1. Use of ABAP Code.
by writing code like this
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parameter: file_nm type localfile.
types : begin of it_tab1,
 f1(20),
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 wa_tab2 type it_tab1,
 w_message(100) TYPE c.
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CHANGING
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EXCEPTIONS
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 i_begin_col = '1'
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tables
 intern = it_tab
EXCEPTIONS
 INCONSISTENT_PARAMETERS = 1
 UPLOAD_OLE = 2
 OTHERS = 3
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
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loop at it_tab.
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 wa_tab2-f1 = it_tab-value.
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 EXIT.
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Here is a pseudo code for what you are looking for-
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Else.
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LEAVE PROGRAM.
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2. Without the use of ABAP code.
CG3Y -
Appl to Presentation server
Reward if useful

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What are various ways

If its a off-topic please execuse me. But i am curious to know them. As there are so many experts here who have almost worked or have knowledge about different tools or software applications which do different tasks.
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What are various ways to misuse internet for secret communication by terrorists or anyone who always think to do harm to human community.(by all means in terms of using software for all their communication)

One could use forums to find out how to abuse the
internet and then put what one learned into play.
Why all these steganography-as-terrorism questions
the last couple days? Homework assignment, or new
approach for al qaeda?Sir jverd,
I respect you as you being seniors here. But as i
told you i am one of the co-passenger in the bomb
blast but i have luckily escaped. I am just a newbie.
I will feel to do something good for my nation. But
just lack of experience and lack of information i am
just curious of any concepts or links or information
that will lead me to atleast 1% to do something good
for my nation. But rather if i can say atleast i can
save atleast one life if i can gather good
information and go on to try myself and findout
various ways to atlest have good knowledge and spread
awareness. I dont feel this is something wrong.
One could use forums to find out how to abuse the
internet and then put what one learned into play.
Why all these steganography-as-terrorism questions
the last couple days? Homework assignment, or new
approach for al qaeda?Sir jverd,
I respect you as you being seniors here. But as i
told you i am one of the co-passenger in the bomb
blast but i have luckily escaped. I am just a newbie.
I will feel to do something good for my nation. But
just lack of experience and lack of information i am
just curious of any concepts or links or information
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for my nation. But rather if i can say atleast i can
save atleast one life if i can gather good
information and go on to try myself and findout
various ways to atlest have good knowledge and spread
awareness. I dont feel this is something wrong.I didn't say it's something wrong. I'm just remarking on the rather coincidental appearance of multiple questions here in the last couple of days that ask about both terrorism and steganography.
I have no idea who you are. You might be a survivor, or you might be one of people responsible for the bombing. I have no way of knowing, and am not making any judgements on you.

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Various way of asynchronous programming done in c#

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