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  4. How to Invoke keypress event in web Application

How to Invoke keypress event in web Application

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  • V Offline
    V Offline
    vikas shukla
    wrote on last edited by
    #1

    hi sir, i want to know the keypress event in web application with the language c# for a textbox.textbox should have only integer value.send me javascript also if there is any use of javascript.

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    • V vikas shukla

      hi sir, i want to know the keypress event in web application with the language c# for a textbox.textbox should have only integer value.send me javascript also if there is any use of javascript.

      A Offline
      A Offline
      ais07
      wrote on last edited by
      #2

      You can write onkeypress event in javascript.And in that you have to check keycodes of numbers.

      Life Is Beautifull

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      • V vikas shukla

        hi sir, i want to know the keypress event in web application with the language c# for a textbox.textbox should have only integer value.send me javascript also if there is any use of javascript.

        V Offline
        V Offline
        vikas shukla
        wrote on last edited by
        #3

        sir i want that code please

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        • V vikas shukla

          sir i want that code please

          A Offline
          A Offline
          ais07
          wrote on last edited by
          #4

          write this code in page load txt.Attributes.Add("onkeypress", "javascript:return DecimalLength(Event)"); and in page source:- function DecimalLength(e) { var KeyChar = (e.which) ? e.which : e.keyCode; if(KeyChar > 57 && KeyChar < 48) { if(window.event) e.returnValue = false; else e.preventDefault(); } } //Check keycode for numbers. Hope this will help you...........

          Life Is Beautiful

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          • V vikas shukla

            hi sir, i want to know the keypress event in web application with the language c# for a textbox.textbox should have only integer value.send me javascript also if there is any use of javascript.

            C Offline
            C Offline
            Christian Graus
            wrote on last edited by
            #5

            vikas shukla wrote:

            i want to know the keypress event in web application with the language c# for a textbox.textbox should have only integer value.send me javascript also if there is any use of javascript.

            What's clear here, is that you are absolutely lost, and completely clueless about what you're doing. If you knew anything about ASP.NET, you'd know what use javascript is, and why no C# code will exist for a keypress event. I suggest you buy a basic book and work through it.

            Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

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            • A ais07

              write this code in page load txt.Attributes.Add("onkeypress", "javascript:return DecimalLength(Event)"); and in page source:- function DecimalLength(e) { var KeyChar = (e.which) ? e.which : e.keyCode; if(KeyChar > 57 && KeyChar < 48) { if(window.event) e.returnValue = false; else e.preventDefault(); } } //Check keycode for numbers. Hope this will help you...........

              Life Is Beautiful

              C Offline
              C Offline
              Christian Graus
              wrote on last edited by
              #6

              ais07 wrote:

              if(KeyChar > 57 && KeyChar < 48)

              hmm...... So, if the number is greater than 57 and AT THE SAME TIME is less than 48......

              Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

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              • C Christian Graus

                ais07 wrote:

                if(KeyChar > 57 && KeyChar < 48)

                hmm...... So, if the number is greater than 57 and AT THE SAME TIME is less than 48......

                Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

                A Offline
                A Offline
                Abhishek Sur
                wrote on last edited by
                #7

                :laugh: :laugh: Silly mistakes....

                Abhishek Sur My Latest Articles Working with Excel using MDAC
                Basics on LINQ and Lambda Expressions
                Create .NET Templates

                C 1 Reply Last reply
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                • V vikas shukla

                  hi sir, i want to know the keypress event in web application with the language c# for a textbox.textbox should have only integer value.send me javascript also if there is any use of javascript.

                  A Offline
                  A Offline
                  Abhishek Sur
                  wrote on last edited by
                  #8

                  you mean it will postback to the server on each keypress?? :omg: :omg:

                  Abhishek Sur My Latest Articles Working with Excel using MDAC
                  Basics on LINQ and Lambda Expressions
                  Create .NET Templates

                  C 1 Reply Last reply
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                  • A Abhishek Sur

                    you mean it will postback to the server on each keypress?? :omg: :omg:

                    Abhishek Sur My Latest Articles Working with Excel using MDAC
                    Basics on LINQ and Lambda Expressions
                    Create .NET Templates

                    C Offline
                    C Offline
                    Christian Graus
                    wrote on last edited by
                    #9

                    He has absolutely no idea about web development, obviously.

                    Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

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                    • A Abhishek Sur

                      :laugh: :laugh: Silly mistakes....

                      Abhishek Sur My Latest Articles Working with Excel using MDAC
                      Basics on LINQ and Lambda Expressions
                      Create .NET Templates

                      C Offline
                      C Offline
                      Christian Graus
                      wrote on last edited by
                      #10

                      Yeah, it's not a big deal, except that the OP is obviously clueless, and would be unable to debug this code.

                      Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

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                      • A ais07

                        write this code in page load txt.Attributes.Add("onkeypress", "javascript:return DecimalLength(Event)"); and in page source:- function DecimalLength(e) { var KeyChar = (e.which) ? e.which : e.keyCode; if(KeyChar > 57 && KeyChar < 48) { if(window.event) e.returnValue = false; else e.preventDefault(); } } //Check keycode for numbers. Hope this will help you...........

                        Life Is Beautiful

                        V Offline
                        V Offline
                        vikas shukla
                        wrote on last edited by
                        #11

                        sir it's not working.can we do this from code behind.

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                        • V vikas shukla

                          sir it's not working.can we do this from code behind.

                          C Offline
                          C Offline
                          Christian Graus
                          wrote on last edited by
                          #12

                          vikas shukla wrote:

                          sir it's not working

                          No, for the reason I stated. A number can't be > 57 AND less than 48 at the same time.

                          vikas shukla wrote:

                          can we do this from code behind.

                          I'm sorry, but you may well be too dumb to do this at all. Do you REALLY want your page to reload itself every time someone presses a key ? Thankfully Microsoft realises how retarded that would be, so they don't offer support for it.

                          Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

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                          • C Christian Graus

                            He has absolutely no idea about web development, obviously.

                            Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

                            A Offline
                            A Offline
                            Abhishek Sur
                            wrote on last edited by
                            #13

                            yes. I agree. Should read basic books on ASP.NET :) :)

                            Abhishek Sur My Latest Articles Working with Excel using MDAC
                            Basics on LINQ and Lambda Expressions
                            Create .NET Templates

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                            • C Christian Graus

                              ais07 wrote:

                              if(KeyChar > 57 && KeyChar < 48)

                              hmm...... So, if the number is greater than 57 and AT THE SAME TIME is less than 48......

                              Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

                              A Offline
                              A Offline
                              ais07
                              wrote on last edited by
                              #14

                              Sir, This code which I had suggested is only for reference not to copy as it is.

                              Life Is Beautiful

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                              • A ais07

                                Sir, This code which I had suggested is only for reference not to copy as it is.

                                Life Is Beautiful

                                C Offline
                                C Offline
                                Christian Graus
                                wrote on last edited by
                                #15

                                Yeah, well, the guy asking you is as dumb as a post, he's going to copy and paste it, and have no idea how to fix it. I know you were just showing the concept, and I've made dumber mistakes, I am not taking a shot at you. I just could see problems brewing because the OP is too dumb to know what this code does, he sure as hell can't debug it.

                                Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

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