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Using of AndAlso
Message
From
01/09/2011 13:58:59
John Baird
Coatesville, Pennsylvania, United States
 
 
General information
Forum:
ASP.NET
Category:
Coding, syntax and commands
Environment versions
Environment:
VB 9.0
OS:
Windows 7
Network:
Windows 2003 Server
Database:
MS SQL Server
Application:
Web
Miscellaneous
Thread ID:
01522454
Message ID:
01522518
Views:
32
>>>>>>>>Take a look here
>>>>>>>>http://blogs.lessthandot.com/index.php/DesktopDev/MSTech/andalso-and-orelse
>>>>>>>
>>>>>>>Yes, but in the example I gave, And would have done it as well, correct?
>>>>>>
>>>>>>If the first condition is false, we don't need to evaluate the second. AndAlso only evaluates the second condition if the first is true. According to the linked article, both conditions will be evaluated if you used And. In other words, it seems we always want to use AndAlso in VB.NET instead of And
>>>>>
>>>>>Not *always* :-}
>>>>>Consider:
Dim i As Integer = 0
>>>>>While True
>>>>>	If (i > 10) AndAlso (System.Math.Max(System.Threading.Interlocked.Increment(i),i - 1) > 10) Then
>>>>>		Exit While
>>>>>	End If
>>>>>End While
>>>>
>>>>:) Not considering such wicked samples, of course.
>>>
>>>I know - just being difficult.
>>>Same principle applies to 'Or' and 'OrElse' of course.....
>>
>>
>>Just use c# and do away with the troubles... :)
>
>But choosing between '&' and '&&' (and '|' and '||') is making the same decision ?


I was making a joke.... poorly i guess... :)
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