RE: C# Question

Thanks Rick,

Sina had most of the answer and I just found an article online on some
programming site that told me to use an ArrayList instead of an Array and
all of my problems should be solved.  I haven't looked at the documentation
on ArrayList yet and haven't given it a try yet.

cdh 

-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Ricks Place
Sent: Sunday, March 30, 2008 3:09 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: Re: C# Question

I'm not sure about auto sizing arrays. I thought they would resize too but 
not worked in C# in 3 or so years. If you know the max size and it's not 
huge you could just set the max size in each dimension for initial testing 
to make sure everything else is working like the instantiation. I have to do

some things but will be back in awhile and see if I can dig something up. I 
have never assigned class objects, just int and strings to arrays in the old

days but I don't see why objects would be diferent.
Also, it seems i remember the c# syntax using the variable type in the first

position of a definition.
int MyArray[][]; Or something like that.
Sorry I can't dig into it right now but look for an array definition using 
an object Data type.
I'll be back later today to help if I can.
Sina may have had the answer, over my head but he is really advanced.
Rick USA
----- Original Message ----- 
From: "Chris Hofstader" <chris.hofstader@xxxxxxxxxxx>
To: <programmingblind@xxxxxxxxxxxxx>
Sent: Sunday, March 30, 2008 2:59 PM
Subject: RE: C# Question


> This is my first venture into multidimensional C# arrays.  Prior to Sina's
> message I thought they grew as needed but that seems to have been a false
> assumption.  I've been digging through documentation and learned that my
> initial declaration was indeed wrong.  The "dataTable" in my example isn't
> from my code and was only meant to act as an illustration.
>
> So, if arrays do not resize dynamically, how can I start with a table of
> unknown number of rows and columns and store them in an array?
>
> Thanks,
> cdh
>
> -----Original Message-----
> From: programmingblind-bounce@xxxxxxxxxxxxx
> [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Ricks Place
> Sent: Sunday, March 30, 2008 2:53 PM
> To: programmingblind@xxxxxxxxxxxxx
> Subject: Re: C# Question
>
> Hi Chris:
> How adept are you with C# Arrays? I ask because the format of the 
> definition
>
> just looks wierd somehow, not looked at C# in a long time. Also, dataTable
> might be treading on the DataTable keyword or the array was not
> instantiated.
> If you  are adept at using C# arrays I'll guess it is something I've just
> not encountered, assigning objects in an array. Otherwise I'll dig into 
> the
> docs for Arrays and see if I can find anything.
> Rick USA
> ----- Original Message ----- 
> From: "Chris Hofstader" <chris.hofstader@xxxxxxxxxxx>
> To: <programmingblind@xxxxxxxxxxxxx>
> Sent: Sunday, March 30, 2008 2:26 PM
> Subject: C# Question
>
>
>> Hi,
>>
>> I have a class which, for purposes of illustration, I'll call MyClass.  I
>> want to declare a two dimensional array of this class so I can have a set
>> of
>> rows and columns within.  I don't know the ultimate size of the array so 
>> I
>> declare it with empty brackets.
>>
>> For instance:
>>
>> MyArray[][] dataTable;  // This compiles without error
>>
>> but, in the code, if I state:
>>
>> dataTable[0][0] = new MyClass();
>>
>> I get an exception about a NULL assignment when the code is executed.
>>
>> I had thought that .Net arrays declared without the "fixed" keyword would
>> grow dynamically and that the Array type overloaded the brackets to 
>> ensure
>> the sort of exception I'm getting doesn't happen.
>>
>> Obviously, I'm doing something quite wrong but I'm having trouble finding
>> examples of C# arrays of anything more complex than int or String.
>>
>> Please help.
>>
>> Thanks,
>> cdh
>>
>> Chris Hofstader
>> CUNY, BSO, ATG, Odds and Ends
>> email: cdh@xxxxxxxxxxxxx
>> Blog: http://www.blindconfidential.blogspot.com
>> Skype: BlindChristian
>> phone: 727-896-6393
>>
>>
>>
>> __________
>> View the list's information and change your settings at
>> http://www.freelists.org/list/programmingblind
>>
>
> __________
> View the list's information and change your settings at
> http://www.freelists.org/list/programmingblind
>
>
>
> __________ NOD32 2984 (20080329) Information __________
>
> This message was checked by NOD32 antivirus system.
> http://www.eset.com
>
>
> __________
> View the list's information and change your settings at
> http://www.freelists.org/list/programmingblind
> 

__________
View the list's information and change your settings at 
http://www.freelists.org/list/programmingblind



__________ NOD32 2984 (20080329) Information __________

This message was checked by NOD32 antivirus system.
http://www.eset.com


__________
View the list's information and change your settings at 
http://www.freelists.org/list/programmingblind

Other related posts: