Hi,
How do we increase the size of array on runtime and preserve the previous
data?
I don't want to use ArrayList because the array could be a multi-dimension
array.
Thanks,
Tee
8  10582 
You didn't specify what type of array but for a byte array you could use the
following method:
public byte [] ReDim(byte [] array, int newSize)
{
byte [] abytNew = new byte[newSize];
Buffer.BlockCopy(array, 0, abytNew, 0, newSize);
return abytNew;
}
Buffer.BlockCopy can handle any type inherited from Array:
byte []
int []
long []
etc...
HTH
"Tee" <th*@streamyx.com> wrote in message
news:eD**************@TK2MSFTNGP10.phx.gbl... Hi,
How do we increase the size of array on runtime and preserve the previous
data?
I don't want to use ArrayList because the array could be a multi-dimension
array.
Thanks,
Tee
It will be a string array.
Thanks,
Tee
"mooni" <to*****@hotmail.com> wrote in message
news:41********@dnews.tpgi.com.au... You didn't specify what type of array but for a byte array you could use
the following method:
public byte [] ReDim(byte [] array, int newSize)
{
byte [] abytNew = new byte[newSize];
Buffer.BlockCopy(array, 0, abytNew, 0, newSize);
return abytNew;
}
Buffer.BlockCopy can handle any type inherited from Array:
byte []
int []
long []
etc...
HTH
"Tee" <th*@streamyx.com> wrote in message
news:eD**************@TK2MSFTNGP10.phx.gbl... Hi,
How do we increase the size of array on runtime and preserve the
previous data?
I don't want to use ArrayList because the array could be a
multi-dimension array.
Thanks,
Tee
Buffer.BlockCopy also applies to string arrays:
public string [] ReDim(string [] array, int newSize)
{
string [] astrNew = new string[newSize];
Buffer.BlockCopy(array, 0, astrNew, 0, newSize);
return astrNew;
}
HTH
mooni
"Tee" <th*@streamyx.com> wrote in message
news:%2****************@TK2MSFTNGP14.phx.gbl... It will be a string array.
Thanks,
Tee
"mooni" <to*****@hotmail.com> wrote in message
news:41********@dnews.tpgi.com.au... You didn't specify what type of array but for a byte array you could use
the following method:
public byte [] ReDim(byte [] array, int newSize)
{
byte [] abytNew = new byte[newSize];
Buffer.BlockCopy(array, 0, abytNew, 0, newSize);
return abytNew;
}
Buffer.BlockCopy can handle any type inherited from Array:
byte []
int []
long []
etc...
HTH
"Tee" <th*@streamyx.com> wrote in message
news:eD**************@TK2MSFTNGP10.phx.gbl... > Hi,
>
> How do we increase the size of array on runtime and preserve the previous > data?
> I don't want to use ArrayList because the array could be a multi-dimension > array.
>
>
> Thanks,
> Tee
>
>
It gives error:
An unhandled exception of type 'System.ArgumentException' occurred in
WindowsApplication10.exe
Additional information: Object must be an array of primitives.
if I comment out this Buffer.BlockCopy, it will work, but can't preserve the
old value.
Thanks.
"mooni" <to*****@hotmail.com> wrote in message
news:41******@dnews.tpgi.com.au... Buffer.BlockCopy also applies to string arrays:
public string [] ReDim(string [] array, int newSize)
{
string [] astrNew = new string[newSize];
Buffer.BlockCopy(array, 0, astrNew, 0, newSize);
return astrNew;
}
HTH
mooni
"Tee" <th*@streamyx.com> wrote in message
news:%2****************@TK2MSFTNGP14.phx.gbl... It will be a string array.
Thanks,
Tee
"mooni" <to*****@hotmail.com> wrote in message
news:41********@dnews.tpgi.com.au... You didn't specify what type of array but for a byte array you could
use the following method:
public byte [] ReDim(byte [] array, int newSize)
{
byte [] abytNew = new byte[newSize];
Buffer.BlockCopy(array, 0, abytNew, 0, newSize);
return abytNew;
}
Buffer.BlockCopy can handle any type inherited from Array:
byte []
int []
long []
etc...
HTH
"Tee" <th*@streamyx.com> wrote in message
news:eD**************@TK2MSFTNGP10.phx.gbl...
> Hi,
>
> How do we increase the size of array on runtime and preserve the
previous > data?
> I don't want to use ArrayList because the array could be a
multi-dimension > array.
>
>
> Thanks,
> Tee
>
>
My mistake, string [] doesn't inherit from System.Array
Try:
public string [] ReDim(string [] array, int newSize)
{
string [] abytNew = new string[newSize];
for(int iCounter = 0; iCounter < array.Length; iCounter++)
abytNew[iCounter] = array[iCounter];
return abytNew;
}
HTH
mooni
"Tee" <th*@streamyx.com> wrote in message
news:O0**************@TK2MSFTNGP14.phx.gbl... It gives error:
An unhandled exception of type 'System.ArgumentException' occurred in
WindowsApplication10.exe
Additional information: Object must be an array of primitives.
if I comment out this Buffer.BlockCopy, it will work, but can't preserve
the
old value.
Thanks.
"mooni" <to*****@hotmail.com> wrote in message
news:41******@dnews.tpgi.com.au... Buffer.BlockCopy also applies to string arrays:
public string [] ReDim(string [] array, int newSize)
{
string [] astrNew = new string[newSize];
Buffer.BlockCopy(array, 0, astrNew, 0, newSize);
return astrNew;
}
HTH
mooni
"Tee" <th*@streamyx.com> wrote in message
news:%2****************@TK2MSFTNGP14.phx.gbl... > It will be a string array.
>
> Thanks,
> Tee
>
> "mooni" <to*****@hotmail.com> wrote in message
> news:41********@dnews.tpgi.com.au...
>> You didn't specify what type of array but for a byte array you could use > the
>> following method:
>>
>> public byte [] ReDim(byte [] array, int newSize)
>>
>> {
>>
>> byte [] abytNew = new byte[newSize];
>>
>> Buffer.BlockCopy(array, 0, abytNew, 0, newSize);
>>
>> return abytNew;
>>
>> }
>>
>> Buffer.BlockCopy can handle any type inherited from Array:
>>
>> byte []
>> int []
>> long []
>>
>> etc...
>>
>>
>> HTH
>>
>> "Tee" <th*@streamyx.com> wrote in message
>> news:eD**************@TK2MSFTNGP10.phx.gbl...
>> > Hi,
>> >
>> > How do we increase the size of array on runtime and preserve the
> previous
>> > data?
>> > I don't want to use ArrayList because the array could be a
> multi-dimension
>> > array.
>> >
>> >
>> > Thanks,
>> > Tee
>> >
>> >
>>
>>
>
>
I got it to work after I change to Buffer.BlockCopy code to:
System.Array.Copy(array, astrNew, array.Length);
Thanks,
Tee
"Tee" <th*@streamyx.com> wrote in message
news:O0**************@TK2MSFTNGP14.phx.gbl... It gives error:
An unhandled exception of type 'System.ArgumentException' occurred in
WindowsApplication10.exe
Additional information: Object must be an array of primitives.
if I comment out this Buffer.BlockCopy, it will work, but can't preserve
the old value.
Thanks.
"mooni" <to*****@hotmail.com> wrote in message
news:41******@dnews.tpgi.com.au... Buffer.BlockCopy also applies to string arrays:
public string [] ReDim(string [] array, int newSize)
{
string [] astrNew = new string[newSize];
Buffer.BlockCopy(array, 0, astrNew, 0, newSize);
return astrNew;
}
HTH
mooni
"Tee" <th*@streamyx.com> wrote in message
news:%2****************@TK2MSFTNGP14.phx.gbl... It will be a string array.
Thanks,
Tee
"mooni" <to*****@hotmail.com> wrote in message
news:41********@dnews.tpgi.com.au...
> You didn't specify what type of array but for a byte array you could use the
> following method:
>
> public byte [] ReDim(byte [] array, int newSize)
>
> {
>
> byte [] abytNew = new byte[newSize];
>
> Buffer.BlockCopy(array, 0, abytNew, 0, newSize);
>
> return abytNew;
>
> }
>
> Buffer.BlockCopy can handle any type inherited from Array:
>
> byte []
> int []
> long []
>
> etc...
>
>
> HTH
>
> "Tee" <th*@streamyx.com> wrote in message
> news:eD**************@TK2MSFTNGP10.phx.gbl...
> > Hi,
> >
> > How do we increase the size of array on runtime and preserve the
previous
> > data?
> > I don't want to use ArrayList because the array could be a
multi-dimension
> > array.
> >
> >
> > Thanks,
> > Tee
> >
> >
>
>
mooni <to*****@hotmail.com> wrote: My mistake, string [] doesn't inherit from System.Array
Um, yes it does...
--
Jon Skeet - <sk***@pobox.com> http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Could you give a broader statement of your original problem? What are
you trying to do? ArrayList is quite capable of supporting
multi-dimensional arrays, but it all depends upon what you want to do
with the arrays and how you want them to work.
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