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Backspace key weird results

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    Backspace key weird results

    When the curser is in a read only field and the backspace key is pressed, it takes you back to the previous web page. This showed up during a presentation when i was demonstrating the inability to change a fields value once the record has been validated. I recovered by explaining "not only will it not allow you to change the value, but it will kick you out of the system". They bought it! But now i need to figure out a fix for it, when it leaves the page, no changes are saved and no prompts, even though i have it set to alert if the changes are not saved.

    I should probably add that the read only field is in a repeating section of a dialog.
    Last edited by J.R. Noe; 04-16-2012, 01:48 PM. Reason: Left out information
    J.R.
    Epigate Software, LLC.

    [email protected]
    http://www.epigate.com
    sigpic

    #2
    Re: Backspace key weird results

    BUMP.

    Did you ever get a solution to this? Happened to me too.

    Charlie

    Comment


      #3
      Re: Backspace key weird results

      No, i never got any replys. It still happens too and i cannot figure out how to fix it. if you do, pleae let me know, it's driving me nuts.
      J.R.
      Epigate Software, LLC.

      [email protected]
      http://www.epigate.com
      sigpic

      Comment


        #4
        Re: Backspace key weird results

        Isn't this just normal browser behavior? From here, go to almost any other web page and click anywhere that isn't a form field. When I press backspace, it takes me back to the prior page in IE. (Note- doesn't work with google.com but does with news.google.com- perhaps they capture the backspace keystroke in javascript??)

        Comment


          #5
          Re: Backspace key weird results

          Thanks Jeff, it may be normal, but it is not desireable in a web based application. I get complaints on it on a regular basis, and i agree with the complaints, it should not do that. Filling out a form in my application, it is just habit to hit the backspace key, which then kicks you off the page, causing much frustration. capturing the backspace key would seem to work, but i think it will just cause problems for data entry.
          i have checked other web based applications and the backspace key works as needed, so i know it can be done.
          J.R.
          Epigate Software, LLC.

          [email protected]
          http://www.epigate.com
          sigpic

          Comment


            #6
            Re: Backspace key weird results

            Backspace is Back and Shift + Backspace is Forward

            Here is a list of shortcuts I have bookmarked (old but still valid )

            Comment


              #7
              Re: Backspace key weird results

              Yea, apparently its a common problem.
              http://mspeight.blogspot.com/2007/05...in-ie-and.html

              Comment


                #8
                Re: Backspace key weird results

                Here is the code as I have followed it's progression...

                Code:
                //========================================
                // Disable Backspace key in IE and Firefox
                //========================================
                // Trap Backspace(8) and Enter(13) - 
                // Except bksp on text/textareas, enter on textarea/submit
                
                document.onkeypress = function(event) {
                if (typeof window.event != 'undefined') { // ie
                event = window.event;
                event.target = event.srcElement; // make ie confirm to standards !!
                }
                var kc=event.keyCode;
                var tt=event.target.type;
                if ((kc == 13) && (event.target.getAttribute('enter_ok') == 'true')) {
                return true; // ok
                }
                
                // alert('kc='+kc+", tt="+tt);
                if ((kc != 8 && kc != 13) || ((tt == 'text' || tt == 'password') && kc != 13) ||
                (tt == 'textarea') || (tt == 'submit' && kc == 13))
                return true;
                alert('Bksp/Enter is not allowed here'); 
                return false;
                }
                
                if (typeof window.event != 'undefined') // ie
                document.onkeydown = document.onkeypress; // Trap bksp in ie. !! Note: does not trap enter, but onkeypress does !!
                Place this in the ClientSide, OnGridRender event. Works great!

                Charlie
                Last edited by Charles Hoens; 10-19-2012, 03:16 PM.

                Comment


                  #9
                  Re: Backspace key weird results

                  Just out of curiosity, how is it that a read-only field is able to be entered?

                  If it is read-only, then why have it "enter-able"? As a user, this behavior would confuse me.
                  Cheers!
                  Lyle Chamney
                  http://www.2ninerniner2.com/
                  Websites rebuilt with WordPress
                  http://goodcheapfastwebsites.com/
                  Complete, ready to install WordPress websites
                  http://snifflevalve.com
                  WordPress training and tutorials

                  Comment


                    #10
                    Re: Backspace key weird results

                    Just because a field is read only doesn't mean that a user can't put their cursor there and then try and "back-up". That's what my users were doing and what took them out of the page.

                    Comment


                      #11
                      Re: Backspace key weird results

                      Again, why should a user be able to place their cursor where it's not supposed to do anything? :) IMHO, this is a UI/UX issue; a read-only field should be differentiated from one that is editable. To do otherwise leads to this discussion
                      Cheers!
                      Lyle Chamney
                      http://www.2ninerniner2.com/
                      Websites rebuilt with WordPress
                      http://goodcheapfastwebsites.com/
                      Complete, ready to install WordPress websites
                      http://snifflevalve.com
                      WordPress training and tutorials

                      Comment


                        #12
                        Re: Backspace key weird results

                        Yes, Neo, we are in the Matrix!

                        Comment


                          #13
                          Re: Backspace key weird results

                          Originally posted by 2ninerniner2 View Post
                          Again, why should a user be able to place their cursor where it's not supposed to do anything? :) IMHO, this is a UI/UX issue; a read-only field should be differentiated from one that is editable. To do otherwise leads to this discussion
                          I agree totally.

                          The problem I had with IE is that if you disable the field the text is 'dimmed' and is almost unreadable. I found out that that is controlled by the browser and can't be changed. I tried many different ways to solve this issue but nothing really worked. Now I use Firefox and the disabled fields text is not dimmed. I show that it is not an editable field by changing the backcolor. De-selecting the Updatable property works most of the time but allows users to see lists from lookups.
                          Win 10 64 Development, Win 7 64 WAS 11-1, 2, Win 10 64 AA-1,2, MySql, dbForge Studio The Best MySQL GUI Tool IMHO. http://www.devart.com/dbforge/mysql/studio/

                          Comment


                            #14
                            Re: Backspace key weird results

                            the field is set up to receive a barcode number, and once entered it must remain unchanged, so i set it to read only once there is a value in it. But it still needs to be able to be seen and referenced and if t is not enabled, it is too dim to be very readable. That is why it is set up that way, but if someone has a better idea then please let me know. Everyone made very good points about not allowing the curser to even enter the field, so i thought i had better explain. Thanks everyone.

                            Maybe i should have it setup to pop up a message box saying "the field cannot be edited" and then set the focus to another field once the messagebox is closed.
                            J.R.
                            Epigate Software, LLC.

                            [email protected]
                            http://www.epigate.com
                            sigpic

                            Comment


                              #15
                              Re: Backspace key weird results

                              My preferred way is to leave the field editable, but hide it!
                              Then use a dummy static field to display the value.
                              Use simple js statements to set the field's value - trigger it via a js event or otherwise.
                              You are really only using this dummy field's DIV to display your data.
                              You can also make it bold and red if you like.

                              Comment

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