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 definitionjust 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 justnot encountered, assigning objects in an array. Otherwise I'll dig into thedocs 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# QuestionHi, 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 ofrows and columns within. I don't know the ultimate size of the array so Ideclare 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 wouldgrow dynamically and that the Array type overloaded the brackets to ensurethe 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 //www.freelists.org/list/programmingblind__________ View the list's information and change your settings at //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 //www.freelists.org/list/programmingblind
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