Overloading of the unary ++ operator in vb.net is not working. It show error:
Operator declaration must be one of: +, -, *, \, /, ^, &, Like, Mod, And,
Or, Xor, Not, <<, >>, =, <>, <, <=, >, >=, CType, IsTrue, IsFalse.
Is there any way can to get rid of this error?
C# is working fine for overloading ++, and do I need to change developing
language to C#? Any suggestion?
Jun 27 '08
15  2021 
On 2008-04-29, VB Developer <VB*********@di scussions.micro soft.comwrote:
+= is not work too.
Code:
Public Shared Operator +=(ByVal bi As Integer) As Integer
............... ....
End Operator
Give the same error above.
Please check it before post yours.
Actually, looking in the docs, +=, -=, etc are not valid for
overloading, so the error message is perfectly correct. You would have
to overload the +:
Public Shared Operator +(ByVal bi As Integer) As Integer
End Sub
+= and friends are compiler shortcuts - not actual operators.
--
Tom Shelton
"VB Developer" <VB*********@di scussions.micro soft.comschrieb
+= is not work too.
Code:
Public Shared Operator +=(ByVal bi As Integer) As Integer
............... ....
End Operator
Give the same error above.
Please check it before post yours.
See Patrice' reply. The "real" operator is "+". You will be able to use
"dest += value" just like "dest = dest + value"
Armin
I want to transfer C# code to VB.net code. I know now it is impossible at
some part and except you change original code such as ++ to +1.
"Patrice" wrote:
"Andrew Morton" <ak*@in-press.co.uk.inv alida écrit dans le message de
groupe de discussion : 67************* @mid.individual .net...
Tom Shelton wrote:
On 2008-04-29, VB Developer <VB*********@di scussions.micro soft.com>
wrote:
Overloading of the unary ++ operator in vb.net is not working. It
show error: Operator declaration must be one of: +, -, *, \, /, ^,
&, Like, Mod, And, Or, Xor, Not, <<, >>, =, <>, <, <=, >, >=, CType,
IsTrue, IsFalse.
Is there any way can to get rid of this error?
C# is working fine for overloading ++, and do I need to change
developing language to C#? Any suggestion?
++ is not an operator in VB.NET. As the error says, it must be one of
the listed operators.
Or one of +=, *=, &= and so on, which the help/error message seems to
miss out.
Andrew
Similarly I would say that += etc... doesn't really exists. This is just a
shortcut notation... What if you try just + or whatever fit your needs ?
You may want to explain what you are trying to do...
--
Patrice
"VB Developer" <VB*********@di scussions.micro soft.comschrieb :
Overloading of the unary ++ operator in vb.net is not working. It show
error:
Operator declaration must be one of: +, -, *, \, /, ^, &, Like, Mod, And,
Or, Xor, Not, <<, >>, =, <>, <, <=, >, >=, CType, IsTrue, IsFalse.
Is there any way can to get rid of this error?
Overload the '+' operator. You may want to handle the case of
incrementation "by one" differently.
C# is working fine for overloading ++, and do I need to change developing
language to C#? Any suggestion?
Why would you want to overload this operator? Note that this operator is
syntactic sugar, as is '+='. VB does not even support the '++' shorthand
syntax.
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
"Tom Shelton" <to*********@YO UKNOWTHEDRILLco mcast.netschrie b:
>I want to transfer C# code to VB.net code. I know now it is impossible
at
some part and except you change original code such as ++ to +1.
Yep. VB.NET doesn't support pre/post increment/decrement operators.
The closest you get is:
b += 1
or
b -= 1
And that is just a shortcut for:
b = b + 1
or
b = b -1
One more reson to prefer C# :)
Well, opinions seem to differ. I don't see any reason for an additional way
to achieve a certain thing which only saves a few keystrokes but requires
additional keystrokes if incrementation/decrementation should be changed
from 1 to another value.
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
On 2008-05-01, Herfried K. Wagner [MVP] <hi************ ***@gmx.atwrote :
"Tom Shelton" <to*********@YO UKNOWTHEDRILLco mcast.netschrie b:
>>I want to transfer C# code to VB.net code. I know now it is impossible
at
some part and except you change original code such as ++ to +1.
Yep. VB.NET doesn't support pre/post increment/decrement operators.
The closest you get is:
b += 1
or
b -= 1
And that is just a shortcut for:
b = b + 1
or
b = b -1
One more reson to prefer C# :)
Well, opinions seem to differ. I don't see any reason for an additional way
to achieve a certain thing which only saves a few keystrokes but requires
additional keystrokes if incrementation/decrementation should be changed
from 1 to another value.
it's the pre/post thing that comes in handy sometimes... Not
necessarily the shortcut for += 1.
--
Tom Shelton This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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