Base Class Library FAQ

Question

There’s already a BCL FAQ on MSDN,

http://msdn.microsoft.com/en-us/netframework/aa569605.aspx

This document is a supplement to the FAQ.

1.     How do I compare two DateTime objects?

2.     How do I handle dates and times that include DST?

3.     What’s the difference between (int), Int32.Parse and Convert.ToInt32?

4.     How do I convert a hexadecimal string to decimal/long?

5.     What is the equivalent function in C# for the function IsDate in VB?

6.     How do I get the maximum path/directory length?

7.     How do I convert a string to an int, double, etc.?

8.     How do I use the SerialPort Class for simple serial communications?

9.     How do I check whether a file is in use?

10.  How do I start another program from .NET?

11.  How do I make sure that only one instance of my application runs at a time?

12.  Does .NET have any compression/zipping capabilities?

13.  How do I retrieve assembly attributes at runtime?

14.  How do I create an instance of a type if I only know its name?

15.  How do I link a delegate to an event using Reflection?

16.  How do I listen to changes in a file/directory in the windows file system?

17.  How do I convert a long path to a short path?

18.  How do I convert an Enumeration member to a string?

 

 

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Answer 1

Nice one.
Thanks Dear Xiaoyun Li

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Regard's Rakesh Sharma (All is Well)

Answer 2

Very nice.

Answer 3

excellent.

Answer 4

Thank you - this is helpful.