another array problem

I create with:

Code:

CArray <Suchparameter*, Suchparameter*> SPA;

CArray as a member variable, which is creating problems from without.
But when I later pointed so

Code:

SPA [1] -> getUrl (1);

want accessed, the program crashes with exception of the untreated ab.Wenn search parameters I do not grab the array operates in the function.

 

Hi,

Try going in with the debugger and see exactly where he abschmiert. I suspect that you have not used one occupied index or no useful pointers have registered.

 

He smears from when a member variable of the query parameters to access will.Ich habs also in creating the classes because debuged, is easily resorted to it.
So I fill the array:

Code:

SPA.Add ( new search parameters (val.intVal));

 

Another approach to error Search:

Substitute times

Code:

SPA [1] -> getUrl (1);

by

Code:

* = Search parameters pSuchTemp SPA [1]; 
pSuchTemp-> getUrl (1);

and look in the debugger's address pSuchTemp and content more closely. If you something strange happens, then you have at least one track.
Otherwise, I would need a little more code (but can not tell you how I look at what an accidental).

 

The program is supposed to, from a database into the array shoveling data, but for some reason is SPA [0] correctly filled not have the program so it changed the array until an item goes through this, I would now runs es.Trotzdem like to know why the program macht.Hier the array is the entire code of the fills.

Code:

CDaoData base archive; 
COleVariant val; 
archiv.Open (" c: \ \ my documents \ \ db3.mdb "); 
CDaoRecordset r (& archive); 
r.Open dbOpenDynaset (, " Select ID from query parameters , "dbReadOnly), 
  if ( ! r.IsEOF ()) 
( 
SPA.SetSize (r.GetRecordCount ()); 
r.MoveFirst (); 
   while (! r.IsEOF ()) 
( 
r.GetFieldValue (" ID ", val); 
SPA.Add ( new search parameters (val.intVal)); 
r.MoveNext (); 
) 
) 
r.Close (); 
archiv.Close ();

 

I can not guarantee that my explanation is correct, but for me there is the as follows:

Code:

SPA.SetSize (r.GetRecordCount ());

Since you r still no MoveLast () or similar to you, you will not show the real number of lines, special ia a first The lay so an array of size 1 to (your element 0, then that does not work).
Below you will:

Code:

SPA.Add ( new search parameters (val.intVal));

This statement you Haeger exsitierende to the array to a new entry and fill it with "new search parameters ..." .
In sum, explains the behavior of your program.

Remedy:
Either:
Make the SetSize r.MoveLast before () and replace this

Code:

SPA.Add ( new search parameters (val.intVal))

by

Code:

SPA [iIndex] = new Parameters (val.intVal)

,
your being you have to make up from 0 duchlaufen loop in iIndex.
Or
you your savings SetSize (). Then your first causes "Add" the produce of the 0-th element, etc.

 

Thanks now running.