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Converting "A" to an Integer value

SQL
This is a little more of a logic question. But I'm doing this in VB.NET, so
I figured this is the right place to ask:

I need to figure out the difference between a range that a user will
enter...only they will be entering alphanumeric characters. Like "A" to
"E"...I want to return the difference which would be 5 (A being 1 and E
being 5).

How can I do this?

Thanks
Nov 20 '05 #1
9 1266
ord(char)

"SQL" <no****@asdfads f.com> wrote in message
news:OS******** ******@tk2msftn gp13.phx.gbl...
This is a little more of a logic question. But I'm doing this in VB.NET, so I figured this is the right place to ask:

I need to figure out the difference between a range that a user will
enter...only they will be entering alphanumeric characters. Like "A" to
"E"...I want to return the difference which would be 5 (A being 1 and E
being 5).

How can I do this?

Thanks

Nov 20 '05 #2
You could try this code:

Dim charOne As Char
Dim charTwo As Char

charOne = "E"
charTwo = "a"

'make both lower case in case one is upper and one is lower
charOne = Char.ToLower(ch arOne)
charTwo = Char.ToLower(ch arTwo)

Dim intOne As Int32 = Convert.ToInt32 (charOne)
Dim intTwo As Int32 = Convert.ToInt32 (charTwo)

MessageBox.Show (System.Math.Ab s((intOne - intTwo)).ToStri ng())

"SQL" <no****@asdfads f.com> wrote in message
news:OS******** ******@tk2msftn gp13.phx.gbl...
This is a little more of a logic question. But I'm doing this in VB.NET, so I figured this is the right place to ask:

I need to figure out the difference between a range that a user will
enter...only they will be entering alphanumeric characters. Like "A" to
"E"...I want to return the difference which would be 5 (A being 1 and E
being 5).

How can I do this?

Thanks

Nov 20 '05 #3
SQL,
Have you tried the AscW function?

Dim c1 As Char = "A"c
Dim c2 As Char = "E"c

Dim diff As Integer = AscW(c2) - AscW(c1)

AscW will give you the Unicode code value for a Char.

Hope this helps
Jay

"SQL" <no****@asdfads f.com> wrote in message
news:OS******** ******@tk2msftn gp13.phx.gbl...
This is a little more of a logic question. But I'm doing this in VB.NET, so I figured this is the right place to ask:

I need to figure out the difference between a range that a user will
enter...only they will be entering alphanumeric characters. Like "A" to
"E"...I want to return the difference which would be 5 (A being 1 and E
being 5).

How can I do this?

Thanks

Nov 20 '05 #4
* "CJ Taylor" <[cege] at [tavayn] dit commmmm> scripsit:
ord(char)


It's actually 'Asc' or 'AscW', I remember 'ORD' was used in Modula-2...

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Nov 20 '05 #5
Did I think that I had learned a new commando.

:-)
It's actually 'Asc' or 'AscW', I remember 'ORD' was used in Modula-2...


And if it is this there has to be substracted 65 than afterwards (When you
are sure it are only upercases).

Cor
Nov 20 '05 #6
damnit... so it is...

losing my touch...

"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:2g******** ***@uni-berlin.de...
* "CJ Taylor" <[cege] at [tavayn] dit commmmm> scripsit:
ord(char)


It's actually 'Asc' or 'AscW', I remember 'ORD' was used in Modula-2...

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

Nov 20 '05 #7
* "CJ Taylor" <[cege] at [tavayn] dit commmmm> scripsit:
damnit... so it is...


\\\
Public Function Ord(ByVal Character As Char) As Integer
Return Asc(Character)
End Function
///

:->

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Nov 20 '05 #8
LOL

\\\
Public Function Ord(ByVal Character As Char) As Integer
Return Asc(Character)
End Function

Nov 20 '05 #9
* "Cor Ligthert" <no**********@p lanet.nl> scripsit:
LOL


I hoped that it was possible to define an alias for a method name using
'Imports', something like that:

\\\
Imports Microsoft.Visua lBasic.Strings. Asc = Ord
///

But that didn't work ;->.

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Nov 20 '05 #10

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