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  4. string to string array

string to string array

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  • S Stefan Troschuetz

    You could use String.ToCharArray() or maybe simply call String.SubString(index, index+1).


    "Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

    www.troschuetz.de

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

    what would index and index+1 be for example string.substring(0,1) and this will return the first and second element??

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    • E Ed Poore

      Does it have to be a string array, if you're only using single characters then the string.ToCharArray() will do it exactly.  But if you want to use strings then I think you will have to write a loop which walks through, adding them to a list as it goes.


      You know you're a Land Rover owner when the best route from point A to point B is through the mud. Ed

      K Offline
      K Offline
      keroed_edmond
      wrote on last edited by
      #7

      i would prefer it to prob be a string because as i go alopngiwant to tets my data to see what is bieng saved but everytime i try to set a textboxt.text=charArray[0] i get an error saying char cannot be converted to string hence if it was stored in a string array i cold prob display it in the textbox or i dont know if is the way i am trying to display it is wrong. is there a way display char in your textbox do u have any samples onlinei could look on that shows u how to loop through a string character by character kenny

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      • K keroed_edmond

        what would index and index+1 be for example string.substring(0,1) and this will return the first and second element??

        S Offline
        S Offline
        Stefan Troschuetz
        wrote on last edited by
        #8

        Ups, I didn't look hard enough at the docs. First parameter is the startIndex, so if you want the "l" from your example string it should be 0. Second paramter is length, so it has to be 1.


        "Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

        www.troschuetz.de

        K 1 Reply Last reply
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        • K keroed_edmond

          i would prefer it to prob be a string because as i go alopngiwant to tets my data to see what is bieng saved but everytime i try to set a textboxt.text=charArray[0] i get an error saying char cannot be converted to string hence if it was stored in a string array i cold prob display it in the textbox or i dont know if is the way i am trying to display it is wrong. is there a way display char in your textbox do u have any samples onlinei could look on that shows u how to loop through a string character by character kenny

          E Offline
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          Ed Poore
          wrote on last edited by
          #9

          keroed_edmond wrote:

          textboxt.text=charArray[0]

          Try textboxt.text=charArray[0].ToString(); :doh:


          You know you're a Land Rover owner when the best route from point A to point B is through the mud. Ed

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          • K keroed_edmond

            yes andi normally use the split function for example if i hava a string="walk,keny,go" i will get all off the values like walk or kenny or go by setting the delimeter to "," but supposei have a string="lets walk to the suppermarket" is there anyway for me to access each character by themself for example i know if i was puting this in an array. array[o] would be l and array[1] would be e ???? u have any idea how i could do this? or any link to any example if it might be too tediuos to show me how to do it????? beginner c#

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            Wjousts
            wrote on last edited by
            #10

            You can treat a regular string like a char array and just index it:string mystring = "hello"; char h = mystring[0]; // h now contains the char 'h'

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            • K keroed_edmond

              i would prefer it to prob be a string because as i go alopngiwant to tets my data to see what is bieng saved but everytime i try to set a textboxt.text=charArray[0] i get an error saying char cannot be converted to string hence if it was stored in a string array i cold prob display it in the textbox or i dont know if is the way i am trying to display it is wrong. is there a way display char in your textbox do u have any samples onlinei could look on that shows u how to loop through a string character by character kenny

              G Offline
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              Guffa
              wrote on last edited by
              #11

              You don't have to convert the string at all to access the separate characters. Just use an index to access the characters: string message = "So long and thanks for all the fish."; char c1 = message[0]; // get the 'S' character char c2 = message[35]; // get the '.' character You can easily convert a char to a string: string s1 = new string(c1); // creates the "S" string string s2 = new string(c2); // creates the "." string There are many ways to get a single character from a string into a new string. Here are some: textbox.Text = new string(message[0]); textbox.Text = message.SubString(0, 1); textbox.Text = new string(message.ToCharArray()[0]); textbox.Text = new string(message.ToCharArray(), 0, 1); textbox.Text = new string(message.ToCharArray(0, 1)); textbox.Text = new string((char)(new StringReader(message).Read())); --- b { font-weight: normal; }

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              • S Stefan Troschuetz

                Ups, I didn't look hard enough at the docs. First parameter is the startIndex, so if you want the "l" from your example string it should be 0. Second paramter is length, so it has to be 1.


                "Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

                www.troschuetz.de

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                K Offline
                keroed_edmond
                wrote on last edited by
                #12

                Thanks it works perfectly kenny

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                • G Guffa

                  You don't have to convert the string at all to access the separate characters. Just use an index to access the characters: string message = "So long and thanks for all the fish."; char c1 = message[0]; // get the 'S' character char c2 = message[35]; // get the '.' character You can easily convert a char to a string: string s1 = new string(c1); // creates the "S" string string s2 = new string(c2); // creates the "." string There are many ways to get a single character from a string into a new string. Here are some: textbox.Text = new string(message[0]); textbox.Text = message.SubString(0, 1); textbox.Text = new string(message.ToCharArray()[0]); textbox.Text = new string(message.ToCharArray(), 0, 1); textbox.Text = new string(message.ToCharArray(0, 1)); textbox.Text = new string((char)(new StringReader(message).Read())); --- b { font-weight: normal; }

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                  Ed Poore
                  wrote on last edited by
                  #13

                  Bit of an overkill for what he wants.


                  You know you're a Land Rover owner when the best route from point A to point B is through the mud. Ed

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                  • E Ed Poore

                    Bit of an overkill for what he wants.


                    You know you're a Land Rover owner when the best route from point A to point B is through the mud. Ed

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                    G Offline
                    Guffa
                    wrote on last edited by
                    #14

                    Yes, of course some of the alternatives are. I just thought that I'd show that there is more than one way to skin a cat. Anyway, I'm not really sure what he wants, and frankly I don't think he is either... ;) --- b { font-weight: normal; }

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                    • G Guffa

                      Yes, of course some of the alternatives are. I just thought that I'd show that there is more than one way to skin a cat. Anyway, I'm not really sure what he wants, and frankly I don't think he is either... ;) --- b { font-weight: normal; }

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                      Ed Poore
                      wrote on last edited by
                      #15

                      keroed_edmond wrote:

                      textboxt.text=charArray[0]

                      Based on that, I think he just wants to display the first character in the array.


                      You know you're a Land Rover owner when the best route from point A to point B is through the mud. Ed

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                      • E Ed Poore

                        Does it have to be a string array, if you're only using single characters then the string.ToCharArray() will do it exactly.  But if you want to use strings then I think you will have to write a loop which walks through, adding them to a list as it goes.


                        You know you're a Land Rover owner when the best route from point A to point B is through the mud. Ed

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                        V Offline
                        vernchen
                        wrote on last edited by
                        #16

                        you can use split(',');

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                        • V vernchen

                          you can use split(',');

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                          Ed Poore
                          wrote on last edited by
                          #17

                          vernchen wrote:

                          you can use split(',');

                          Not unless there are comma's seperating all characters ;P  If you look at the above thread you'll see that what he needed was the ToString() method :doh:


                          You know you're a Land Rover owner when the best route from point A to point B is through the mud. Ed

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