User FAQs

If you have a question, please send it to us.

1) What is Multi-Threading ?
This allows different tasks to be carried out in parallel.
The advantage of a divide and conquer strategy is that it will improve performance.

2) What is the difference between a Background Thread and a Foreground Thread ?
A foreground thread runs indefinitely.
A background thread terminates when the foreground thread is stopped.

3) What does the 'async' keyword do ?
Introduced in C# 5.0 (.NET 4.5).

4) What is displayed when this code runs ?

public main() 
{ 
   Method1() 
   MessageBox.Show("Two"); 
} 

public async void Method1() 
{ 
   thread.wait(10); 
   MessageBox.Show("One"); 
} 

The Method1 is executed on a different thread and this message box will only be displayed after the 10 seconds.
"Two"
"One"

5) What does the [ThreadStatic] attribute do ?

System.ThreadStaticAttribute 

This is used to indicate a variable is thread safe.
A static variable is not shared between threads.
Each executing thread will have a separate instance of the field and will independently set and get values for that variables.
If the variable is accessed on a different thread, it will contain a different value.