Allow numbers in the text field

Hi all

I want to allow numbers in the text field using the BACKSPACE and delete keys to change.

--> the code below does not allow alphabets but when I type a character in-between the numbers I add.

-> and the other question is, if I select all of the text in the text field and press on any non-numeric key (for example: alphabets or special characters) it adds, but if I select all the text and if I type in the text box it won't add them.


for example: I have 253 typed in the textfield If I try to type the alphabets it will not add

but when I type in between the figures he adds 25java3

CODE:

public void changed (ObservableValue <? extends number > observable, oldValue, newValue number number) {}

If (newValue.intValue () > oldValue.intValue ()) {}

char ch = allocatevaluesText.getText () .charAt (oldValue.intValue ());

System.out.println ("length:" + oldValue + "" + newValue + "" + ch);

Check if the new character is the number or other

If (!) () ch > = '0' & & ch < = '9')) {}

If it's not previous number then just setText

allocatevaluesText.setText (allocatevaluesText.getText () .substring (0, allocatevaluesText.getText () .length () - 1));

}

}

Hi ATS the following:

{code}

final tf TextField = new TextField();
tf.addEventFilter (KeyEvent.KEY_TYPED, new EventHandler() {}
@Override
{} public void handle (KeyEvent t)
If (! t.getCharacter () .matches ("\\d")) {}

t.consume ();
}
}
});

tf.textProperty () .addListener (new ChangeListener() {}
public void changed (ObservableValue observable, String oldValue, String newValue) {}
System.out.println ("new text:" + newValue);
try {}
int a = Integer.parseInt (newValue);
} catch (Exception e) {}
tf.setText (oldValue);

}
}
});

{/ code}

Tags: Java

Similar Questions

  • Format mask of Crete then we enter some numbers in the text field

    Hello

    Version: Oracle Apex 5.0

    I'm trying to format mask using dynamic action. As if you enter 6 digit values in the text field, it must be auto filled with sign.i.e «-» 333 333

    Created:

    Dynamic action:

    event: key to exit

    Article: xxx

    JavaScript: $v('xxx').replace(^[[:digit:]]{3}-[[:digit:]]{3}$)

    When: touch button

    It does not any help would be great.

    Followed stops:

    Re: How to make a format for the input mask?

    Hi Pranav.shah,

    Pranav.Shah wrote:

    Version: Oracle Apex 5.0

    I'm trying to format mask using dynamic action. As if you enter 6 digit values in the text field, it must be auto filled with sign.i.e «-» 333 333

    Created:

    Dynamic action:

    event: out of key

    Article: xxx

    JavaScript: $v('xxx').replace(^[[:digit:]]{3}-[[:digit:]]{3}$)

    When: touch button

    It does not any help would be great.

    Followed stops:

    Re: How to make a format for the input mask?

    Use instead the input mask text "Text hidden v5.0" plug-in for Oracle APEX 5.0.

    Reference: Oracle Application Express Plug-Ins

    Kind regards

    Kiran

  • Limit the first character in the text field to the letter and numbers?

    How can I limit only the first character entered in the text field as the letter H (uppercase) or any number? Thanks in advance.

    function of validateMemberID was a mistake on my part misnamed it. I thought about it...

    At the level of the JavaScript document

    Allow only characters that match the regular expression
    function validatePartialMemberId (value) {}
    return / ^ [H0-9]?\d{0,10}$/.test(value);
    }

    function validateFullMemberId (value) {}
    return / ^ [H0-9]\d{10}$/.test(value);
    }

    function checkMemberId() {}
    Get all of the characters that the user has entered
    var value = AFMergeChange (event);

    Allow the land to be developed
    If (! value)
    return;

    If (! event.willCommit) {}
    Event.RC = validatePartialMemberId (value);
    }
    }

  • Tips: APEX 5 r IR by a dynamic action after the text fields complete

    Hello I hope I can get assistance on this matter and thank you in advance for any information.

    I have an APEX 5 screen, that has 4 fields of entry of text and under this one IR that has these 4 parameters in its SQL where clauses.

    Now if I create a button that submits page or redirects to this page my report can be updated with the values of user entered without problem, basic stuff.  If I create the settings section as a dialog box model once again that I can get the update report as this dialogue submits the page as well as the report can refresh according to closed dialog option.

    What I struggle to reach is to allow the user to enter values in the text fields click on a button called 'submit' and there all stages of implementing dynamic action without page reloading.  I want user to P1_A, P1_B, P1_C, P1_D press on "submit" input, dynamic action that links the values entered into the fields, then fire another dynamic action that updates the State when the button is clicked / modified values what works the best.

    I am struggling to get this to work and I even tried to copy these settings and do them as hidden for example bind input P1_A to P1_A_Hidden by a dynamic action and have the report where clause =: P1_A_HIDDEN, but have not managed to get this working.

    It's possible?  I know its easy to simply send the page and make it work, but I want the experience to be quite uniform for the user and act as you never leave the page.

    I saw on the packages of the app in the chart example.  The bubble chart has a list selector (salary) and the table updates dynamically, it seems so that the process can occur, but I need the user to enter text and not use selection lists.

    My apologies if I missed any, but I can give you more if it helps.

    Concerning

    1972903b-5166-494e-8355-08d9d4006e96 wrote:

    Hello I hope I can get assistance on this matter and thank you in advance for any information.

    I have an APEX 5 screen, that has 4 fields of entry of text and under this one IR that has these 4 parameters in its SQL where clauses.

    What I struggle to reach is to allow the user to enter values in the text fields click on a button called 'submit' and there all stages of implementing dynamic action without page reloading.  I want user to P1_A, P1_B, P1_C, P1_D press on "submit" input, dynamic action that links the values entered into the fields, then fire another dynamic action that updates the State when the button is clicked / modified values what works the best.

    The button simply trigger a unique dynamic action of refreshment on the IR region. Session state for page elements must be processed automatically by specifying them in the property Page to submit Items of the IR region.

    Please ensure that you have updated your forum profile with a recognizable username instead of "1972903b-5166-494e-8355-08d9d4006e96": Video tutorial how to change username available

  • List drop-down selection trigger change in the text field

    I'm hit a roadblock here. I'm on Adobe Acrobat XI and here's the scenario: I have a list box and a text box.

    Drop-down menu field has 3 caps (A, B, C).

    If A is selected, the text box = 15 default, but has the ability to change in the text box.

    If B or C is selected, the text box = 0 or "by default, but it has the ability to change in the text box.

    If I use an if/then with a .value, I'll be able to get the numbers to work, but do not have the ability to edit and keep them there. If I enter another number in another area, the JavaScript code will run and change the text box to 0 or 15.

    Any help would be greatly appreciated.

    Thank you

    Instead to use script logic for the text field, use the drop-down validation script. In this way, that it only will be triggered when you change the value in the drop-down list field, not when you change any field in the file (as the calculation script).

  • How to select all the text fields at a given time in Adobe Reader ms?

    I created a document that contains more than one text field I created with Acrobat Pro DC, I want to allow the user the ability to select all fields in order to change the text size/color and fonts at the same time... not having to go through the entire form and must make each field separately. To be a little more specific, the document is two pages with six place/lounge cards per page, designed for weddings and other events. Each place card has a field for 'user name' and ' number of table: my question is...» Is it possible to 'select all fields' in Adobe Reader? If I go to Edition > select all, the program selects all graphics and none of the text fields. Not exactly what I'm missing here and I can not find my answer online. Any information would be greatly appreciated.

    Thank you!

    Jodi

    In this case, you can only change the properties of the text selected within a field. Acrobat Reader cannot change the properties of the text field.

  • Formula to add a blank space before the text field or pattern.

    I need model when I write something in the text field to provide an empty space at the beginning.

    Thank you

    Hello

    You can use a view model, but she would get very long if your field allows many characters, so for a 4-character field, you can use;

    text {' ' X} | text {' ' XX} | text {' ' XXX} | text {' ' XXXX}

    Concerning

    Bruce

  • How to paste into the text field of the Clipboard with JavaScript?

    I implement the following actions in the form of javascript:

    1. a user clicks on a link on the PDF to open a web page

    2. the user uses the web page to find information and then copy text from the web page

    3. the user clicks a button on the pdf form and it formats the text to the Clipboard and paste them into the text fields.

    I can't find any references for the reading of the data from the Clipboard with javascript in PDF Forms. is it not possible?

    Perhaps 'not possible' was a little too hard. It would be a security hole if she accepts a script in a form to copy the contents of the Clipboard without the user explicitly allowing it. It has been possible to copy the contents of the Clipboard into a form field using the app.execMenuItem method without the user knowing / allowing it, but that hole was closed. The restriction can be overcome, as explained in the documentation: http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.143.html

  • Validate the text field

    Hello

    One of the column is the editable text field. It should allow only the numeric values + ve and - ve and point example authorized 123.00
    and also the - allowed 123.00. and remove all the other characters.
    I wrote the code following and calling onchage on the text field. But it does no period and values of ve. She accepts only + ve digital raising.

    Please help fix this function. or give me a better solution.
    function checkForNumber(evt) {
        evt = (evt) ? evt : window.event;
        var charCode = (evt.which) ? evt.which : evt.keyCode;
        if (charCode == 46){
          return true;
        }
           if (charCode > 31 && (charCode < 48 || charCode > 57)){
            return false;
        }
        return true;
    }

    Hello

    Try

    function checkForNumber(evt) {
        evt = (evt) ? evt : window.event;
        var charCode = (evt.which) ? evt.which : evt.keyCode;
        if (charCode == 45 || charCode == 46){
          return true;
        }
           if (charCode > 31 && (charCode < 48 || charCode > 57)){
            return false;
        }
        return true;
    }
    

    Kind regards
    Jari

  • Positioning in the text field text

    I have a text field 3 x 7 set to "Allow multiple lines" However, when I 'Preview PDF', any entered text starts in the middle of the text field and moves to a line at a time that the text is adjusted.  How can I get the cursor to start in the upper left corner of the field instead of the Middle?

    Thanks in advance for the help!

    Right click the field-> choose pallets-> click on paragraph. You will find the text of the alignment controls.

    or

    The window-> paragraph menu

    Nith

  • Adding (or divide, multiply, etc.) in the text field values

    Hello world

    I'm trying to calculate values in fields of text entered by the user (who didn't accept numbers) as well as the values selected by the user drop-down list boxes. I have a function to a button:

    reviewQ.calcBtn.addEventListener(MouseEvent.CLICK, calcAns);
    function calcAns(e:MouseEvent):void
    {
         reviewQ.calcAns_text.text = "Your calculated result is " + parseInt(Q1.Q1_text.text) + parseInt(Q2.Q2_cb.selectedItem.data) + parseInt(Q3.Q3_text.text) + parseInt(Q4.Q4_cb.selectedItem.data);
    }
    

    Now, all I get is the actual values entered into the text fields and selected in the drop-down list boxes. How can I get the sum of these values to display on my 'calcAns_text.text '?

    Thank you for your help,

    Rafa.

    You have to build your own filtering for values.  If you think that decimal values, then you will need to plan and test for the presence of a comma in a numeric string and then do not use parseInt(); (what creates an integer value), but use instead Number();  You will need to filter the commas in the numbers in the string before creating the value used for the calculation.

  • Turn off the text field (always submits page when you press enter)

    I have an area which allows you to enter search criteria. There are two fields and a button. The 1st field is a selection list that gives a list of columns in a database that can be searched on. The 2nd field is where the user enters the value to search for. The user can submit the search in 2 ways. They can press the button or press return when the cursor is in the 2nd item that is a text field (always submits page when you press enter). The results are then displayed in a region of report below.

    The problem I have, is that if the request is for > 10 seconds and the user gets impatient and hits the Enter key or the button search again the query is returned for a second time (or third or fourth according to the impatience of the user) causing the claim on the basis of data with a negative impact on the performance of the system.

    I know how to handle the search key. On a click event on I turn off the button so that the user cannot click on it again and resubmit the request.

    My question is - how can I turn off "always provides a page when you press enter" text item when the user presses enter? I tried an onclick event, but disabled the front element I could type in anything. Onblur event does not seem to do anything.

    Any ideas would be very appreciated.

    Andy

    Hello

    First of all, one thing to try: attributes of the Page, there is a section for the presentation in double - try setting this option on no.

    Otherwise, using the text field type, adds the following to the INPUT tag:

    onkeypress="return submitEnter(this,event)"
    

    which means, you can call your own function of javascript on the onkeypress event, the final line would be call submitEnter(). But you can set the value of a hidden page element:

    function doEnter(t, e)
    {
     if ($x('P1_SEARCH_RUNNING').value == 0)
     {
      $x('P1_SEARCH_RUNNING').value = 1;
      return submitEnter(t, e);
     }
     else
     {
      return false;
     }
    }
    

    Then, after changing your element to an element of normal text on the attributes of HTML form elements, add in:

    onkeypress="return doEnter(this,event)"
    

    Andy

  • I just upgraded to Firefox 17.0.1 and now I am unable to what it is concluded from the text fields.

    After the upgrade to Firefox 17.0.1 cannot enter text in the toolbar URL, the search bar, or any text boxes/entry forms/fields on Web pages. When you click on the text field, the cursor is positioned properly and flashes but typing does not generate any text.

    OK the solution to this problem (to fear for me) is completely restart the computer.

    Thanks ideato and cor - el to try to help.

  • on paint it willnt allow to use the text why

    on paint it willnt allow to use the text why

    Hi logannill,

    What version of windows are you using?

    You can add text to pictures using paint, you can follow the steps below

    1. open MS Paint your current photo.

    2. find the area where you want to add text.

    3. Select the text tool, represented by the letter A, in the box to tools on your left.

    4. position the cursor on the location where you want the text to start.

    5. Select the font style and size of the help box that appears when you select the tool.

    6. start to type. You will see the text added during typing. It is a good indicator of how it will look when you are done.

    7. click outside of it, and it will be fixed on your photo. If the spacing, size or placement is not quite right, scrap it and start again by selecting 'Cancel' in the Edit menu, and then restart the process again

    Visit our Microsoft answers feedback Forum and let us know what you think.

  • Problem of text selection in the text field for entry in the emulator

    I'm having a problem of text selection in a text field when I run my application in the emulator Playbook. Let me see if I can expose the problem here:

    1. The field in question is a classic text, text with an integrated in police entry field. The domain is in a SWC and referenced in another FILE.
    2. The code is set up such that when a user clicks the field function is called to highlight all the text. The code is more or less as follows:
    thisField.addEventListener(MouseEvent.CLICK, onFieldClick);
    
    private function onFieldClick(event:MouseEvent):void
    {
       var selectedField:TextField = event.target as TextField;
       selectedField.setSelection(0, selectedField.text.length);
    }
    

    The problem I'm having is that when I try clicking on the emulator, the text field in 'domain' is sometimes selected as expected, sometimes not. When the text is not selected as expected the cursor always appears in the field and the Playbook keyboard slides up by below. What is particularly problematic, that's what often happens, is that the whole scene moves upward on 10px when it is clicked on the ground. If I try to click on the same ground once again, another change to the top of 10px or so, etc..

    So why the text not properly selected and why the scene evolves upwards?

    I realize that more information may be required from me to correctly solve this problem, but if someone has all understand why this may be the case, I would be happy to learn from him.

    Thank you

    David

    I can answer the question of displacement.  This is a bug in BB and supposed to be fixed in version «next» SDK

    The question of the selection, I'll guess has to do with the fileld with focus, selection is not possible.  Try to set the focus outside of maybe the text field?

Maybe you are looking for