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  4. i have problem with CString please help me

i have problem with CString please help me

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  • R Offline
    R Offline
    rajneshmalik
    wrote on last edited by
    #1

    hi all i want to allocate memory for two diamentional sring like CString mydata=new CString[10]; for "TWO DIAMENTION". I done CString mydata=new CString[10][10]; but compiler raise error how can i solve this problem; thank u in advance malik

    N P N T M 5 Replies Last reply
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    • R rajneshmalik

      hi all i want to allocate memory for two diamentional sring like CString mydata=new CString[10]; for "TWO DIAMENTION". I done CString mydata=new CString[10][10]; but compiler raise error how can i solve this problem; thank u in advance malik

      N Offline
      N Offline
      Neo Andreson
      wrote on last edited by
      #2

      Try with this CString *mydata=new CString[10];

      N 1 Reply Last reply
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      • R rajneshmalik

        hi all i want to allocate memory for two diamentional sring like CString mydata=new CString[10]; for "TWO DIAMENTION". I done CString mydata=new CString[10][10]; but compiler raise error how can i solve this problem; thank u in advance malik

        P Offline
        P Offline
        Paresh Chitte
        wrote on last edited by
        #3

        What is your requirement ? Will CStringArray helpful ? Regards, Paresh.

        1 Reply Last reply
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        • R rajneshmalik

          hi all i want to allocate memory for two diamentional sring like CString mydata=new CString[10]; for "TWO DIAMENTION". I done CString mydata=new CString[10][10]; but compiler raise error how can i solve this problem; thank u in advance malik

          N Offline
          N Offline
          Nishad S
          wrote on last edited by
          #4

          rajneshmalik wrote:

          I done CString mydata=new CString[10][10];

          Two dimension array cannot be created like this. You have to do like

              CString** pStr = new CString* [10];
              for( int i = 0; i < 10; i++ )
                  pStr[i] = new CString[10];
          

          - NS -

          R 1 Reply Last reply
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          • N Neo Andreson

            Try with this CString *mydata=new CString[10];

            N Offline
            N Offline
            Neo Andreson
            wrote on last edited by
            #5

            Sorry this is wrong, u have to use CStringArray Class

            K 1 Reply Last reply
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            • N Neo Andreson

              Sorry this is wrong, u have to use CStringArray Class

              K Offline
              K Offline
              KarstenK
              wrote on last edited by
              #6

              Sorry: use a CString* is legal but you ar right using a CStringArray is best practice :->

              Greetings from Germany

              1 Reply Last reply
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              • R rajneshmalik

                hi all i want to allocate memory for two diamentional sring like CString mydata=new CString[10]; for "TWO DIAMENTION". I done CString mydata=new CString[10][10]; but compiler raise error how can i solve this problem; thank u in advance malik

                T Offline
                T Offline
                ThatsAlok
                wrote on last edited by
                #7

                rajneshmalik wrote:

                i want to allocate memory for two diamentional sring

                try typedef std::vector<CString> vecCString; typedef std::vector<vecCString> vecTwoDimensionCString; typedef std::vector<vecTwoDimensionCString> vecThreeDimensionCString;

                "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
                Never mind - my own stupidity is the source of every "problem" - Mixture

                cheers, Alok Gupta VC Forum Q&A :- I/IV Support CRY- Child Relief and You

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                • R rajneshmalik

                  hi all i want to allocate memory for two diamentional sring like CString mydata=new CString[10]; for "TWO DIAMENTION". I done CString mydata=new CString[10][10]; but compiler raise error how can i solve this problem; thank u in advance malik

                  M Offline
                  M Offline
                  Mark Salsbery
                  wrote on last edited by
                  #8

                  While you probably should use an array class as others have mentioned, you can create multi dimension arrays on the heap if you use the proper syntax: CString (*mydata)[10] = new CString[10][10]; ... delete[] mydata;

                  Mark Salsbery Microsoft MVP - Visual C++ :java:

                  R 1 Reply Last reply
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                  • M Mark Salsbery

                    While you probably should use an array class as others have mentioned, you can create multi dimension arrays on the heap if you use the proper syntax: CString (*mydata)[10] = new CString[10][10]; ... delete[] mydata;

                    Mark Salsbery Microsoft MVP - Visual C++ :java:

                    R Offline
                    R Offline
                    rajneshmalik
                    wrote on last edited by
                    #9

                    hi first thank u to help me,my concept r not so clear because i m new for mfc but i want to describe my problem to u. i have a directory that have unknown number of file i want to show and sort those file for this i want a CString type variable(object) so that i can show those file,i think u have to modefied ur statement.i am also getting memory leak problem.please reply soon thank u malik

                    M 1 Reply Last reply
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                    • N Nishad S

                      rajneshmalik wrote:

                      I done CString mydata=new CString[10][10];

                      Two dimension array cannot be created like this. You have to do like

                          CString** pStr = new CString* [10];
                          for( int i = 0; i < 10; i++ )
                              pStr[i] = new CString[10];
                      

                      - NS -

                      R Offline
                      R Offline
                      rajneshmalik
                      wrote on last edited by
                      #10

                      hi first thank u to help me,my concept r not so clear because i m new for mfc but i want to describe my problem to u. i have a directory that have unknown number of file i want to show and sort those file for this i want a CString type variable(object) so that i can show those file,i think u have to modefied ur statement.i am also getting memory leak problem.please reply soon thank u malik

                      N 1 Reply Last reply
                      0
                      • R rajneshmalik

                        hi first thank u to help me,my concept r not so clear because i m new for mfc but i want to describe my problem to u. i have a directory that have unknown number of file i want to show and sort those file for this i want a CString type variable(object) so that i can show those file,i think u have to modefied ur statement.i am also getting memory leak problem.please reply soon thank u malik

                        M Offline
                        M Offline
                        Mark Salsbery
                        wrote on last edited by
                        #11

                        rajneshmalik wrote:

                        i have a directory that have unknown number of file i want to show and sort those file for this i want a CString type variable(object) so that i can show those file,

                        In that case I don't see why you need a multi-dimension array. Directory listings are one-dimensional. A CStringArray is an excellent choice IMO. Mark

                        Mark Salsbery Microsoft MVP - Visual C++ :java:

                        1 Reply Last reply
                        0
                        • R rajneshmalik

                          hi first thank u to help me,my concept r not so clear because i m new for mfc but i want to describe my problem to u. i have a directory that have unknown number of file i want to show and sort those file for this i want a CString type variable(object) so that i can show those file,i think u have to modefied ur statement.i am also getting memory leak problem.please reply soon thank u malik

                          N Offline
                          N Offline
                          Nishad S
                          wrote on last edited by
                          #12

                          I CStringArray is enough for the purpose.

                          rajneshmalik wrote:

                          i am also getting memory leak problem

                          May you are not calling delete in the proper way.

                          - NS -

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