When to use ( )

[Rob]

In code, I "appear" to see contradictions. ..

Dim aButton as New Button()

as well as

Dim aButton as New Button

Why are the ( ) present in one case, but not the other ?

[rowe_newsgroups]

Re: When to use ( )

On May 11, 8:59 am, "Rob" <r...@yahoo.com wrote:

In code, I "appear" to see contradictions. ..
>
Dim aButton as New Button()
>
as well as
>
Dim aButton as New Button
>
Why are the ( ) present in one case, but not the other ?

Visual Basic does not enforce strict parentheses rules like other
languages such as C# or C++. If they are absent but required the
compiler will add them for you.

Thanks,

Seth Rowe

[Rob]

Re: When to use ( )

Thanks...

However... I would like to know the underlying rule... when does the
complier require that they be present ?

Do certain circumstances dictate their presence ?


"rowe_newsgroup s" <rowe_email@yah oo.comwrote in message
news:1178888440 .922600.52230@w 5g2000hsg.googl egroups.com...

On May 11, 8:59 am, "Rob" <r...@yahoo.com wrote:

>In code, I "appear" to see contradictions. ..
>>
>Dim aButton as New Button()
>>
>as well as
>>
>Dim aButton as New Button
>>
>Why are the ( ) present in one case, but not the other ?

>
Visual Basic does not enforce strict parentheses rules like other
languages such as C# or C++. If they are absent but required the
compiler will add them for you.
>
Thanks,
>
Seth Rowe
>

[rowe_newsgroups]

Re: When to use ( )

On May 11, 9:21 am, "Rob" <r...@yahoo.com wrote:

Thanks...
>
However... I would like to know the underlying rule... when does the
complier require that they be present ?
>
Do certain circumstances dictate their presence ?
>
"rowe_newsgroup s" <rowe_em...@yah oo.comwrote in message
>
news:1178888440 .922600.52230@w 5g2000hsg.googl egroups.com...
>

On May 11, 8:59 am, "Rob" <r...@yahoo.com wrote:

In code, I "appear" to see contradictions. ..

>

Dim aButton as New Button()

>

as well as

>

Dim aButton as New Button

>

Why are the ( ) present in one case, but not the other ?

>

Visual Basic does not enforce strict parentheses rules like other
languages such as C# or C++. If they are absent but required the
compiler will add them for you.

>

Thanks,

>

Seth Rowe

Any time you call a method the parentheses are required - this
includes object instantiation.

Thanks,

Seth Rowe

[diAb0Lo]

Re: When to use ( )

On 11 mayo, 08:59, "Rob" <r...@yahoo.com wrote:

In code, I "appear" to see contradictions. ..
>
Dim aButton as New Button()
>
as well as
>
Dim aButton as New Button
>
Why are the ( ) present in one case, but not the other ?

Hi,

You must use () with the NEW reserved keyword when the constructor you
are calling requires one or more parameters. For example:

Dim myString As New String("AAA")

It sets myString = "AAA".

Cheers

[=?Utf-8?B?RGF2aWQgQW50b24=?=]

Re: When to use ( )

Actually, VB does not add them for instantiation via parameterless
constructors (i.e., "x = New Foo" is left as is), but VB does add them for
paremeterless method calls. I'm not sure for the reason behind this
inconsistency.
--
David Anton

https://www.tangiblesoftwaresolutions.com

Instant C#: VB to C# converter
Instant VB: C# to VB converter
C++ to C# Converter: converts C++ to C#
Instant C++: converts C# or VB to C++/CLI


"rowe_newsgroup s" wrote:

On May 11, 9:21 am, "Rob" <r...@yahoo.com wrote:

Thanks...

However... I would like to know the underlying rule... when does the
complier require that they be present ?

Do certain circumstances dictate their presence ?

"rowe_newsgroup s" <rowe_em...@yah oo.comwrote in message

news:1178888440 .922600.52230@w 5g2000hsg.googl egroups.com...

On May 11, 8:59 am, "Rob" <r...@yahoo.com wrote:
>In code, I "appear" to see contradictions. ..

>Dim aButton as New Button()

>as well as

>Dim aButton as New Button

>Why are the ( ) present in one case, but not the other ?

Visual Basic does not enforce strict parentheses rules like other
languages such as C# or C++. If they are absent but required the
compiler will add them for you.

Thanks,

Seth Rowe

>
Any time you call a method the parentheses are required - this
includes object instantiation.
>
Thanks,
>
Seth Rowe
>
>

[Mattias Sjögren]

Re: When to use ( )

>Actually, VB does not add them for instantiation via parameterless
>constructors (i.e., "x = New Foo" is left as is), but VB does add them for
>paremeterles s method calls. I'm not sure for the reason behind this
>inconsistenc y.

Maybe because in an instantiation context you could confuse it for an
array (if you don't remember that curly braces are required)?


Mattias

--
Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

[Jay B. Harlow [MVP - Outlook]]

Re: When to use ( )

Rob,
In addition to the other comments.

They are allowed here as they are optional.

They are optional to avoid the problem of deleting new from your first
expression & winding up with an array:

Dim aButton as Button()

aButton is now an array of buttons, probably not what you intended.

--
Hope this helps
Jay B. Harlow [MVP - Outlook]
..NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net


"Rob" <robc1@yahoo.co mwrote in message
news:Ss-dnZpTl-Oi9dnbnZ2dnUVZ_ r-onZ2d@comcast.c om...

In code, I "appear" to see contradictions. ..
>
Dim aButton as New Button()
>
as well as
>
Dim aButton as New Button
>
Why are the ( ) present in one case, but not the other ?
>
>
>
>