Can you use a foreach to set the elements of an object[] to null? This does
not work as o is read-only. Is only way to use a for loop?
object[] buffer = new object[3];
//...fill buffer.
foreach (object o in buffer)
{
o = null;
}
--
William Stacey
10  13511 
If it's a small array, you can also do this:
object[] buffer = {null, null, null};
--- Jeff
"William Stacey" <st*****@mvps.org> wrote in message
news:uy*************@TK2MSFTNGP10.phx.gbl... Can you use a foreach to set the elements of an object[] to null? This
does not work as o is read-only. Is only way to use a for loop?
object[] buffer = new object[3];
//...fill buffer.
foreach (object o in buffer)
{
o = null;
}
--
William Stacey
William Stacey <st*****@mvps.org> wrote: Can you use a foreach to set the elements of an object[] to null? This does
not work as o is read-only. Is only way to use a for loop?
object[] buffer = new object[3];
//...fill buffer.
foreach (object o in buffer)
{
o = null;
}
Even if o were not readonly, that would not change the buffer itself -
o is a local variable: changing its value wouldn't change the value of
anything else.
However, there's a much better way of doing this. I'm not sure whether
in your example, the //...fill buffer comment was saying that the
foreach was doing it, in which case it's unnecessary in the first
place, but if not, just use Array.Clear (buffer, 0, buffer.Length);
--
Jon Skeet - <sk***@pobox.com> http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
I think the easist way is to create a new array
object[] buffer = new object[3];
//...fill buffer.
buffer = new object[3];
"William Stacey" <st*****@mvps.org> wrote in message
news:uy*************@TK2MSFTNGP10.phx.gbl... Can you use a foreach to set the elements of an object[] to null? This
does not work as o is read-only. Is only way to use a for loop?
object[] buffer = new object[3];
//...fill buffer.
foreach (object o in buffer)
{
o = null;
}
--
William Stacey
Surely all you need to do is:
object[] buffer = new object[3];
....and you'll have an array of three object references, all of which are
null.
"Leo Lin" <le*****@hotmail.com> wrote in message
news:ee**************@tk2msftngp13.phx.gbl... I think the easist way is to create a new array
object[] buffer = new object[3];
//...fill buffer.
buffer = new object[3];
"William Stacey" <st*****@mvps.org> wrote in message
news:uy*************@TK2MSFTNGP10.phx.gbl... Can you use a foreach to set the elements of an object[] to null? This
does not work as o is read-only. Is only way to use a for loop?
object[] buffer = new object[3];
//...fill buffer.
foreach (object o in buffer)
{
o = null;
}
--
William Stacey
You can do that for large arrays too, Jeff!
AHAHAHAHAHAHAHAHAHAHAHA
HAHAHAHAHAHAHAHAHAHAHAH
AHAHAHAHAHAHAHAHAAHAHAH
AHAHAHAHAHAHAAHAHA... *crack*
"Jeff" <je**@nowhere.com> wrote in message
news:#x**************@TK2MSFTNGP11.phx.gbl... If it's a small array, you can also do this:
object[] buffer = {null, null, null};
--- Jeff
"William Stacey" <st*****@mvps.org> wrote in message
news:uy*************@TK2MSFTNGP10.phx.gbl... Can you use a foreach to set the elements of an object[] to null? This
does not work as o is read-only. Is only way to use a for loop?
object[] buffer = new object[3];
//...fill buffer.
foreach (object o in buffer)
{
o = null;
}
--
William Stacey
True, but who wants to code something like:
object[] buffer = {null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null};
:-)
"Humanity" <us******@domain.com> wrote in message
news:O3***************@TK2MSFTNGP11.phx.gbl... You can do that for large arrays too, Jeff!
AHAHAHAHAHAHAHAHAHAHAHA
HAHAHAHAHAHAHAHAHAHAHAH
AHAHAHAHAHAHAHAHAAHAHAH
AHAHAHAHAHAHAAHAHA... *crack*
"Jeff" <je**@nowhere.com> wrote in message
news:#x**************@TK2MSFTNGP11.phx.gbl... If it's a small array, you can also do this:
object[] buffer = {null, null, null};
--- Jeff
"William Stacey" <st*****@mvps.org> wrote in message
news:uy*************@TK2MSFTNGP10.phx.gbl... Can you use a foreach to set the elements of an object[] to null?
This does not work as o is read-only. Is only way to use a for loop?
object[] buffer = new object[3];
//...fill buffer.
foreach (object o in buffer)
{
o = null;
}
--
William Stacey
Allocating new arrays is not always the right design choice (even thou it is
easy), especially in loops when you would need to make many allocations
(i.e. streams, network objects, etc.) and could reuse the array.
--
William Stacey
"Stu Smith" <st*****@remove.digita.com> wrote in message
news:#M**************@TK2MSFTNGP09.phx.gbl... Surely all you need to do is:
object[] buffer = new object[3];
...and you'll have an array of three object references, all of which are
null.
"Leo Lin" <le*****@hotmail.com> wrote in message
news:ee**************@tk2msftngp13.phx.gbl... I think the easist way is to create a new array
object[] buffer = new object[3];
//...fill buffer.
buffer = new object[3];
"William Stacey" <st*****@mvps.org> wrote in message
news:uy*************@TK2MSFTNGP10.phx.gbl... Can you use a foreach to set the elements of an object[] to null?
This does not work as o is read-only. Is only way to use a for loop?
object[] buffer = new object[3];
//...fill buffer.
foreach (object o in buffer)
{
o = null;
}
--
William Stacey
Certainly not me!
I see your point :)
"Jeff" <je**@nowhere.com> wrote in message
news:e0**************@TK2MSFTNGP10.phx.gbl... True, but who wants to code something like:
object[] buffer = {null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null,
null, null, null, null, null};
:-)
"Humanity" <us******@domain.com> wrote in message
news:O3***************@TK2MSFTNGP11.phx.gbl... You can do that for large arrays too, Jeff!
AHAHAHAHAHAHAHAHAHAHAHA
HAHAHAHAHAHAHAHAHAHAHAH
AHAHAHAHAHAHAHAHAAHAHAH
AHAHAHAHAHAHAAHAHA... *crack*
"Jeff" <je**@nowhere.com> wrote in message
news:#x**************@TK2MSFTNGP11.phx.gbl... If it's a small array, you can also do this:
object[] buffer = {null, null, null};
--- Jeff
"William Stacey" <st*****@mvps.org> wrote in message
news:uy*************@TK2MSFTNGP10.phx.gbl...
> Can you use a foreach to set the elements of an object[] to null? This does
> not work as o is read-only. Is only way to use a for loop?
>
> object[] buffer = new object[3];
> //...fill buffer.
> foreach (object o in buffer)
> {
> o = null;
> }
>
> --
> William Stacey
>
>
>
Hi William,
Yes, foreach statement does not allow the user to change the value in the
array.
I think you can initialize the array like this:
object[] buffer = new object[3];
for(int i=0;i<buffer.Length ;i++)
{
buffer[i]=null;
}
Hope this helps,
Best regards,
Jeffrey Tan
Microsoft Online Partner Support
Get Secure! - www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.
--------------------
| From: "William Stacey" <st*****@mvps.org>
| Subject: foreach on an object[]
| Date: Mon, 29 Sep 2003 11:49:20 -0400
| Lines: 15
| X-Priority: 3
| X-MSMail-Priority: Normal
| X-Newsreader: Microsoft Outlook Express 6.00.3790.0
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| Message-ID: <uy*************@TK2MSFTNGP10.phx.gbl>
| Newsgroups: microsoft.public.dotnet.languages.csharp
| NNTP-Posting-Host: 66.188.59.114.bay.mi.chartermi.net 66.188.59.114
| Path: cpmsftngxa06.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTN GP10.phx.gbl
| Xref: cpmsftngxa06.phx.gbl microsoft.public.dotnet.languages.csharp:188008
| X-Tomcat-NG: microsoft.public.dotnet.languages.csharp
|
| Can you use a foreach to set the elements of an object[] to null? This
does
| not work as o is read-only. Is only way to use a for loop?
|
| object[] buffer = new object[3];
| //...fill buffer.
| foreach (object o in buffer)
| {
| o = null;
| }
|
| --
| William Stacey
|
|
|
|
Thanks Jeff.
--
William Stacey, DNS MVP
"Jeffrey Tan[MSFT]" <v-*****@online.microsoft.com> wrote in message
news:KC**************@cpmsftngxa06.phx.gbl...
Hi William,
Yes, foreach statement does not allow the user to change the value in the
array.
I think you can initialize the array like this:
object[] buffer = new object[3];
for(int i=0;i<buffer.Length ;i++)
{
buffer[i]=null;
}
Hope this helps,
Best regards,
Jeffrey Tan
Microsoft Online Partner Support
Get Secure! - www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.
--------------------
| From: "William Stacey" <st*****@mvps.org>
| Subject: foreach on an object[]
| Date: Mon, 29 Sep 2003 11:49:20 -0400
| Lines: 15
| X-Priority: 3
| X-MSMail-Priority: Normal
| X-Newsreader: Microsoft Outlook Express 6.00.3790.0
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| Message-ID: <uy*************@TK2MSFTNGP10.phx.gbl>
| Newsgroups: microsoft.public.dotnet.languages.csharp
| NNTP-Posting-Host: 66.188.59.114.bay.mi.chartermi.net 66.188.59.114
| Path: cpmsftngxa06.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTN GP10.phx.gbl
| Xref: cpmsftngxa06.phx.gbl
microsoft.public.dotnet.languages.csharp:188008 | X-Tomcat-NG: microsoft.public.dotnet.languages.csharp
|
| Can you use a foreach to set the elements of an object[] to null? This
does
| not work as o is read-only. Is only way to use a for loop?
|
| object[] buffer = new object[3];
| //...fill buffer.
| foreach (object o in buffer)
| {
| o = null;
| }
|
| --
| William Stacey
|
|
|
|
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