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  4. user should have to enter 4 numbers in textbox after 4 numbers textbox should not take any number

user should have to enter 4 numbers in textbox after 4 numbers textbox should not take any number

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  • Y yogesh89

    i have a form in which i am entering country code and zip code. user should have to enter 4 numbers in country textbox after 4 numbers country textbox should not take any number. please reply..........

    R Offline
    R Offline
    Roman_wolf
    wrote on last edited by
    #2

    The TextBox has a "MaxLength" attribute. It does exactly what you want.

    N 1 Reply Last reply
    0
    • Y yogesh89

      i have a form in which i am entering country code and zip code. user should have to enter 4 numbers in country textbox after 4 numbers country textbox should not take any number. please reply..........

      N Offline
      N Offline
      Not Active
      wrote on last edited by
      #3

      Using a masked edit texbox you can restrict the input to a specific lenght and type. Search for the term and you will find many examples from custom server controls to JavaScript solutions. Pick one that will work for you.


      I know the language. I've read a book. - _Madmatt

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      • R Roman_wolf

        The TextBox has a "MaxLength" attribute. It does exactly what you want.

        N Offline
        N Offline
        Not Active
        wrote on last edited by
        #4

        That won't quite do it. The OP said NUMBERS. Your solutions will only limit the length but still allow any character to be entered.


        I know the language. I've read a book. - _Madmatt

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        • N Not Active

          That won't quite do it. The OP said NUMBERS. Your solutions will only limit the length but still allow any character to be entered.


          I know the language. I've read a book. - _Madmatt

          R Offline
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          Roman_wolf
          wrote on last edited by
          #5

          Ok then, I missed the "numbers" part of the question. But then this can easily be taken into account by adding a compare validator that checks for the type.

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          • R Roman_wolf

            Ok then, I missed the "numbers" part of the question. But then this can easily be taken into account by adding a compare validator that checks for the type.

            N Offline
            N Offline
            Not Active
            wrote on last edited by
            #6

            No, a compare validator works by comparing the value of one field to another. It, or any validator, also does not prevent characters from being entered when only numbers are expected. Validators check the input afterward, they don't prevent entry.


            I know the language. I've read a book. - _Madmatt

            R 1 Reply Last reply
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            • Y yogesh89

              i have a form in which i am entering country code and zip code. user should have to enter 4 numbers in country textbox after 4 numbers country textbox should not take any number. please reply..........

              L Offline
              L Offline
              Lost User
              wrote on last edited by
              #7

              You can use the MaxLength attribute of the textbox to limit the lengh to 4 and use this function to limit the input to only numbers. If you want to restrict entry of invalid characters, you'll have to handle the keypress event and write appropriate code.

              function isNumeric(str)
              {
              var i=0;
              for(i=0;i '9')
              return false;
              }
              return true;
              }

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              0
              • L Lost User

                You can use the MaxLength attribute of the textbox to limit the lengh to 4 and use this function to limit the input to only numbers. If you want to restrict entry of invalid characters, you'll have to handle the keypress event and write appropriate code.

                function isNumeric(str)
                {
                var i=0;
                for(i=0;i '9')
                return false;
                }
                return true;
                }

                N Offline
                N Offline
                Not Active
                wrote on last edited by
                #8

                There are far better examples and implementations than this.


                I know the language. I've read a book. - _Madmatt

                L 1 Reply Last reply
                0
                • N Not Active

                  There are far better examples and implementations than this.


                  I know the language. I've read a book. - _Madmatt

                  L Offline
                  L Offline
                  Lost User
                  wrote on last edited by
                  #9

                  I understand, but for a starter, this should be okay. Moreover, by redirecting new users to pre-written frameworks and controls, we're actually discouraging them from learning the language itself.

                  N 1 Reply Last reply
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                  • N Not Active

                    No, a compare validator works by comparing the value of one field to another. It, or any validator, also does not prevent characters from being entered when only numbers are expected. Validators check the input afterward, they don't prevent entry.


                    I know the language. I've read a book. - _Madmatt

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

                    Ok I agree on the second part. However, a compare validator can be used to check for data types

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                    0
                    • L Lost User

                      I understand, but for a starter, this should be okay. Moreover, by redirecting new users to pre-written frameworks and controls, we're actually discouraging them from learning the language itself.

                      N Offline
                      N Offline
                      Not Active
                      wrote on last edited by
                      #11

                      Shameel wrote:

                      we're actually discouraging them from learning the language itself.

                      No. .NET is a pre-written framework, has it discouraged you from learning? JQuery is a framework, have you stopped learning JavaScript? Lazy coders may not want to learn any further than how to use an API but true developers will learn and better themselves. Expereinced developers also know to not recreate the wheel, if there is a perfectly good framework or control to do what is needed they will use it and save the time for more complex problems.


                      I know the language. I've read a book. - _Madmatt

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                      0
                      • R Roman_wolf

                        Ok I agree on the second part. However, a compare validator can be used to check for data types

                        N Offline
                        N Offline
                        Not Active
                        wrote on last edited by
                        #12

                        Once again, this is after the fact. It does not prevent entry. Thanks for playing.


                        I know the language. I've read a book. - _Madmatt

                        R 1 Reply Last reply
                        0
                        • N Not Active

                          Once again, this is after the fact. It does not prevent entry. Thanks for playing.


                          I know the language. I've read a book. - _Madmatt

                          R Offline
                          R Offline
                          Roman_wolf
                          wrote on last edited by
                          #13

                          In which I said that you were right. What I was replying to was the first part of your statement "No, a compare validator works by comparing the value of one field to another"

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                          0
                          • N Not Active

                            Shameel wrote:

                            we're actually discouraging them from learning the language itself.

                            No. .NET is a pre-written framework, has it discouraged you from learning? JQuery is a framework, have you stopped learning JavaScript? Lazy coders may not want to learn any further than how to use an API but true developers will learn and better themselves. Expereinced developers also know to not recreate the wheel, if there is a perfectly good framework or control to do what is needed they will use it and save the time for more complex problems.


                            I know the language. I've read a book. - _Madmatt

                            L Offline
                            L Offline
                            Lost User
                            wrote on last edited by
                            #14

                            Mark Nischalke wrote:

                            Expereinced developers also know to not recreate the wheel, if there is a perfectly good framework or control to do what is needed they will use it and save the time for more complex problems.

                            Correct. But the OP doesn't seem to be an experienced guy. So, let him learn the language first.

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                            • L Lost User

                              Mark Nischalke wrote:

                              Expereinced developers also know to not recreate the wheel, if there is a perfectly good framework or control to do what is needed they will use it and save the time for more complex problems.

                              Correct. But the OP doesn't seem to be an experienced guy. So, let him learn the language first.

                              N Offline
                              N Offline
                              Not Active
                              wrote on last edited by
                              #15

                              Inexperienced will not take the time for in-depth learning. Most employers don't pay for training or to have their devs learn something, they want results.


                              I know the language. I've read a book. - _Madmatt

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