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  4. Exception:System.IndexOutOfRangeException (Urgent)

Exception:System.IndexOutOfRangeException (Urgent)

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  • Q quiteSmart

    I believe that your error is that there is less than 4 checked items in the Table listBox so when the compiler tries to go to (for example) index 4 it is not found and it is out of range. try knowing how many items are checked before you initialize the other array and u do the for loop. you can do this int count = TableListBox.CheckedIndices.Count; and continue the rest of your code

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    Saira Tanwir
    wrote on last edited by
    #9

    i've already checked that the number of items selected in the listbox are 4 through int count=TableListBox.CheckedIndices.Count; approach. but still it doesn't work. Any other suggestions???

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    • Q quiteSmart

      int count=4; int[] indice = new int[count]; MessageBox.Show(count.ToString()); for(int i=0;i indice[i] = TableListBox.CheckedIndices[i];<--Exception return indice; this is not C# coding

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      J4amieC
      wrote on last edited by
      #10

      Why do you say that. (NB. the forum cut off everything after "for(int i=0;i" the line should have read "for(int i=0;i<count;i++)")

      --- How to get answers to your questions[^]

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      • J J4amieC

        Why do you say that. (NB. the forum cut off everything after "for(int i=0;i" the line should have read "for(int i=0;i<count;i++)")

        --- How to get answers to your questions[^]

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        quiteSmart
        wrote on last edited by
        #11

        It is a good notice from you X| But i didn't know that the forum cut that out. Why don't u try to help that poor guy instead of loosing your time on unrelavent comments

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        • S Saira Tanwir

          i've already checked that the number of items selected in the listbox are 4 through int count=TableListBox.CheckedIndices.Count; approach. but still it doesn't work. Any other suggestions???

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          quiteSmart
          wrote on last edited by
          #12

          Sorry, i cann't see any error in the code you are providing. Try providing us more information and maybe we can help

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          • Q quiteSmart

            Sorry, i cann't see any error in the code you are providing. Try providing us more information and maybe we can help

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            Saira Tanwir
            wrote on last edited by
            #13

            can this be due to the .Net Platform being corrupt? i'm really confused:confused::~

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            • S Saira Tanwir

              can this be due to the .Net Platform being corrupt? i'm really confused:confused::~

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              quiteSmart
              wrote on last edited by
              #14

              Is it the first time you develop on this Platform?

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              • S Saira Tanwir

                can this be due to the .Net Platform being corrupt? i'm really confused:confused::~

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                Christian Graus
                wrote on last edited by
                #15

                The odds of that are close to zero.

                Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

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                • S Saira Tanwir

                  hi friends can anyone plz guide me on the exception An unhandled exception of type 'System.IndexOutOfRangeException' occurred in system.windows.forms.dll Additional information: Index was outside the bounds of the array. heres the code that gives me the exception int count=4; int[] indice = new int[count]; MessageBox.Show(count.ToString()); for(int i=0;i<--Exception return indice; plz reply quickly

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                  Christian Graus
                  wrote on last edited by
                  #16

                  Saira Tanwir wrote:

                  plz reply quickly

                  This really bugs me. You're getting help for free, people will reply when they reply. No-one is 'on duty' int count=4; int[] indice = new int[count]; MessageBox.Show(count.ToString()); for(int i=0;i

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                  • C Christian Graus

                    The odds of that are close to zero.

                    Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

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                    Saira Tanwir
                    wrote on last edited by
                    #17

                    thankyou for clearing that up and YES this is my first project on this platform

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                    • C Christian Graus

                      Saira Tanwir wrote:

                      plz reply quickly

                      This really bugs me. You're getting help for free, people will reply when they reply. No-one is 'on duty' int count=4; int[] indice = new int[count]; MessageBox.Show(count.ToString()); for(int i=0;i

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                      Saira Tanwir
                      wrote on last edited by
                      #18

                      well guys the problem is still there:^) But thanks anyway for all thee help and ur precious time regards:rose: Saira

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                      • S Saira Tanwir

                        well guys the problem is still there:^) But thanks anyway for all thee help and ur precious time regards:rose: Saira

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                        Christian Graus
                        wrote on last edited by
                        #19

                        Well, it's a really simple one. You need to step through the code and see what's happening, if you need to do that, to be convinced that hard coding the number 4 when the list could have less items is a bad idea. You'll see that it blows up because there are not four items checked. Nothing else makes sense.

                        Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

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                        • S Saira Tanwir

                          i've already checked that the number of items selected in the listbox are 4 through int count=TableListBox.CheckedIndices.Count; approach. but still it doesn't work. Any other suggestions???

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                          chravisankar
                          wrote on last edited by
                          #20

                          paste the full code i will test and let u know

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