Overloading of the unary ++ operator in VB.net

[=?Utf-8?B?VkIgRGV2ZWxvcGVy?=]

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?

[Tom Shelton]

Re: Overloading of the unary ++ operator in VB.net

On 2008-04-29, VB Developer <VBDeveloper@di scussions.micro soft.comwrote:

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.

--
Tom Shelton

[Armin Zingler]

Re: Overloading of the unary ++ operator in VB.net

"VB Developer" <VBDeveloper@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?

Yes, don't use "++". "++" is not a valid operator; but not only with
overloading. It does not exist.

C# is working fine for overloading ++, and do I need to change
developing language to C#?

You can't. You are VB Developer.


Armin

[Andrew Morton]

Re: Overloading of the unary ++ operator in VB.net

Tom Shelton wrote:

On 2008-04-29, VB Developer <VBDeveloper@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

[Tom Shelton]

Re: Overloading of the unary ++ operator in VB.net

On 2008-04-29, Andrew Morton <akm@in-press.co.uk.inv alidwrote:

Tom Shelton wrote:

>On 2008-04-29, VB Developer <VBDeveloper@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

hmmm, you are correct :) It does seem to leave those out.

--
Tom Shelton

[Patrice]

Re: Overloading of the unary ++ operator in VB.net

"Andrew Morton" <akm@in-press.co.uk.inv alida écrit dans le message de
groupe de discussion : 67oq4tF2prk2kU1 @mid.individual .net...

Tom Shelton wrote:

>On 2008-04-29, VB Developer <VBDeveloper@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

[=?Utf-8?B?VkIgRGV2ZWxvcGVy?=]

Re: Overloading of the unary ++ operator in VB.net

+= 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.




"Tom Shelton" wrote:

On 2008-04-29, Andrew Morton <akm@in-press.co.uk.inv alidwrote:

Tom Shelton wrote:

On 2008-04-29, VB Developer <VBDeveloper@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

>
hmmm, you are correct :) It does seem to leave those out.
>
--
Tom Shelton
>

[Andrew Morton]

Re: Overloading of the unary ++ operator in VB.net

Patrice wrote:

"Andrew Morton" <akm@a écrit dans le message

>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...

/I/'m trying to let the OP know there's no ++ operator in VB.NET... :-)

Andrew

[Tom Shelton]

Re: Overloading of the unary ++ operator in VB.net

On 2008-04-29, VB Developer <VBDeveloper@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

[Armin Zingler]

Re: Overloading of the unary ++ operator in VB.net

"VB Developer" <VBDeveloper@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

[=?Utf-8?B?VkIgRGV2ZWxvcGVy?=]

Re: Overloading of the unary ++ operator in VB.net


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" <akm@in-press.co.uk.inv alida écrit dans le message de
groupe de discussion : 67oq4tF2prk2kU1 @mid.individual .net...

Tom Shelton wrote:

On 2008-04-29, VB Developer <VBDeveloper@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
>
>
>
>

[Patrice]

Re: Overloading of the unary ++ operator in VB.net

This is just to port code and an attempt to avoid changing ++ ?

Depending on the reason for this port you could :
- compile the C# code into a DLL so that you can reuse this code without
even having to port
- also I've heard about translators being able to take source code in a
particular language and translate it to another language (try googling for
this)

Of course if you really want to this by hand you'll have anyway much bigger
changes than that...
--
Patrice

"VB Developer" <VBDeveloper@di scussions.micro soft.coma écrit dans le
message de groupe de discussion :
DDC5A314-5342-4646-93D0-02852962E806@mi crosoft.com...

>
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.

[Tom Shelton]

Re: Overloading of the unary ++ operator in VB.net

On 2008-04-29, VB Developer <VBDeveloper@di scussions.micro soft.comwrote:

>
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# :)

--
Tom Shelton

[Herfried K. Wagner [MVP]]

Re: Overloading of the unary ++ operator in VB.net

"VB Developer" <VBDeveloper@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/>

[Herfried K. Wagner [MVP]]

Re: Overloading of the unary ++ operator in VB.net

"Tom Shelton" <tom_shelton@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/>