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Question
Saturday, November 16, 2013 6:24 PM
Hello,
I'm using Visual Basic 2010 Express
If I want to use a decimal number, it is written without any prefix, eg
value = 12345
If I want to use Hexadecimal, the prefix is &H, eg
value = &HD6
My question is, What is the prefix for a binary number?, eg
value = ????10110010
Trail and error, eg using &B, has proved fruitless.
Related to this, I have spent a lot of time trying to find the answer to above by searching the Microsoft Help pages, but with no success, which is very discouraging for such an elementary question. Clearly I'm not using the Help facility properly. I know you have to use the right search terms, but I've tried all sorts of combinations of "format", "number", "binary", etc, to no avail. Can you provide guidance on using Help?
Many thanks.
All replies (5)
Saturday, November 16, 2013 6:36 PM ✅Answered
You could try the following:
Convert.ToInt32("10110010",2)
http://msdn.microsoft.com/en-us/library/1k20k614(v=vs.110).aspx
LS
Lloyd Sheen
Saturday, November 16, 2013 7:05 PM ✅Answered
There is no such option available for binary numbers. You can try the solution provided by Lloyd Sheen. Else you can try "ParseBinary" solution provided in following link
http://stackoverflow.com/questions/1417662/how-do-i-type-literal-binary-in-vb-net
Gaurav Khanna | Microsoft VB.NET MVP | Microsoft Community Contributor
Monday, November 18, 2013 8:04 AM ✅Answered
Hi Ken,
have a look at Type Characters (Visual Basic)
And as parsing a literal string using Convert.ToInt32 has some overhead, you should prefer hexadecimal constants - for "10110010" that would be &hB2.
Tip: The Windows Calculator has a programmer mode that can help to convert the value.
Regards Elmar
Saturday, November 16, 2013 11:09 PM
Hi Guys,
Thanks for quick reply.
Convert.ToInt32 works fine.
As a newbie on VB, is there any quick way I can check on the language capabilities/limitations, to avoid spending lots of time searching for an answer that does not exist? Or is that just part of the learning curve?
Ken_A1
Monday, November 18, 2013 6:53 AM
Hi Guys,
>> As a newbie on VB, is there any quick way I can check on the language capabilities/limitations, to avoid spending lots of time searching for an answer that does not exist? Or is that just part of the learning curve?
In my view, it is a part of the learning curve. When we start to learn a new development language, we need to practice, practice, and practice. The more you practice, the more you get!
Have a nice time!
Regards,
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