Validation before closing JOptionPane

Hi,
I am displaying list of names(with check boxes) using JOptionPane show message dialog. I want to check whether at least one name is selected from the list. This check has to be performed before closing the JOptionPane. How to implement this and explain how to implement event listeners.
Sabarish R L

Read the JOptionPane API and follow the link to the Swing tutorial on "How to Make Dialogs" which contains a working example.

Similar Messages

  • Opening a prompt window before closing window when click on the x box

    I was wondering if there was a way to have a prompt box asking the user if they're sure they want to close the window before closing it when the x button is clicked. Is this possible? Does anyone know how?

    Or simply override:
        /** Overridde method in JFrame */
        protected void processWindowEvent(WindowEvent e)
            if(e.getID()==WindowEvent.WINDOW_CLOSING)
                int choice = JOptionPane.showConfirmDialog( null, "Are you e?" );     
                if( choice == JOptionPane.OK_OPTION )
                    System.exit(0);
            super.processWindowEvent(e);
        }

  • How do I set Safari to prompt before closing multiple tabs OR reopen all of the closed tabs when when I relaunch the application?  The "Reopen all windows from last session" is unselectable.

    How do I set Safari to prompt before closing multiple tabs OR reopen all of the closed tabs when when I relaunch the application?  The "Reopen all windows from last session" is unselectable.

    It would seem if your choose "Show my windows and tabs from last time" '''''and''''',
    *when you last closed Firefox, you had no web site open (just a blank tab), that it would open just that blank tab
    *when you last closed Firefox, you had one or more tabs/web site open, that would allow you to "Restore Previous Session"
    #Have you tried that?
    #If so, what is happening in each circumstance when you reopen Firefox?
    '''Restore Previous Session'''<br />
    Open tabs are automatically saved when closing Firefox beginning in Firefox 4. To open your last session, after Firefox starts, click History > Restore Previous Session. For this to work
    #You must be remembering history (Options > Privacy > Remember my browsing history).
    #*See [https://support.mozilla.com/en-US/kb/Options%20window%20-%20Privacy%20panel Options window-Privacy panel]
    #You must not be using Private Browsing or permanent Private Browsing
    #*See [https://support.mozilla.com/en-US/kb/Private%20Browsing Private Browsing]
    #You must not use Clear Recent History or Clear history when Firefox closes
    #*See [https://support.mozilla.com/en-US/kb/Clear%20Recent%20History Clear Recent History]
    #*See [https://support.mozilla.com/en-US/kb/Options%20window%20-%20Privacy%20panel Options window-Privacy panel]
    '''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.'''
    Not related to your question, but...
    You need to update some plug-ins:
    *Plug-in check: https://www-trunk.stage.mozilla.com/en-US/plugincheck/
    *Adobe PDF Plug-In For Firefox and Netscape: [https://support.mozilla.com/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox#w_installing-and-updating-adobe-reader Installing/Updating Adobe Reader in Firefox]

  • The last few days I have been constantly saving my file. About an hour ago I opened my file and the most recent work wasn't saved even though I'm sure I saved it before closing. What can I do? Also, when I have tried to email it to myself as a backup, the

    The last few days I have been constantly saving my file. A couple of hours ago I renamed the file and then reopened my file a little while later, but the most recent work wasn't saved even though I'm sure I saved it before closing. What can I do? Also, when I have tried to email it to myself as a backup, the fields aren't populated when I open it up. Fyi, I have the free subscription.

    Hi Constance,
    As i understand your changes in the pdf were not saved...Are you still facing this issue?
    Regards,
    Rahul

  • How do I move a group of tabs before closing a window?

    I recently lost all my custom settings on Firefox after an aggressive tech support person "cleaned" my browser settings. When this happened, I lost the ability to move my open tabs to a new group before closing the window they were in.
    Previously, when I had multiple windows open, and I initiated an "Exit" or "Close" command on one of the open windows, 2 things happened:
    (1) First I received a warning message asking me if I wanted to close the window
    (2) Then I received a second warning message asking me if I wanted to move my tabs before closing the window.
    Now, I only receive the 1st message, and I am no longer offered the option of moving my tabs to a new window before closing the current window.
    I've tested this both with and without the Tabs Group Manager which I was using prior to the time my browser was "cleaned", and I still have not found a way to restore this missing feature.
    Unfortunately, I don't know if this feature/option is:
    -- provided as a default in Firefox
    -- a customizable feature in Firefox, or
    -- a feature in a Firefox add-on.
    Can anyone tell me where/how to restore this option to move a group of tabs before closing a window?
    Thanks,
    Metta

    Thank you, guigs2, for your feedback, and my apologies for the confusion. After rereading my question, I realize I made a couple of typos in my original help request which cannot now be corrected. Specifically, the 2nd sentence in the first paragraph should have read:
    "I lost the ability to move GROUPS of open tabs to a new WINDOW before closing the window they were in."
    This means that, as far as I can tell, neither of your plugin recommendations applies:
    -- Apparently, Tab Mix Plus only applies to manipulating tabs WITHIN the existing window and, unless I am missing something, I did not see any reference to the option I'm looking for -- specifically, an automatic prompt offering to move groups of tabs to a new window before closing the existing window.
    -- Unfortunately, the other plugin you mentioned (Tag Cloud) appears to be non-functional in the current version of Firefox, based on the most recent user reviews.
    In light of this, I will consider the possibility of resubmitting my question with the typos corrected -- and, in the meantime, if there is any additional feedback that you (or anyone else) can offer, I would be most grateful!

  • Before closing down the machine, how can I close all the open programs?

    Now that the iMac automauically starts up with the programs in use when closing, I find that this is delaying my start.
    There must be a shortcut to close all the open programs before closing the machine.
    Kindly advise.

    If by 'closing' the machine you mean shutting it down, there is a checkbox in the Shutdown confirmation window which is preset to re-start all apps at startup which were open when the machine was shut down. Uncheck that item in the Shutdown confirmation window.
    Unfortunately you'll need to do that each time you shut the machine down.

  • How to send a warning message before closing soft via X of the title bar

    With labview 8.2:
    I would like to send a warning message before closing my soft when the user press the "X" of the title bar. Is it possible to do that without a Windows dll?
    Thanks a lot,
    Daniel.

    Gerd,
    I think a filter event for 'Panel close?' is more appropriate because you have the possibility to cancel the event or continue the event.
    Ton
    Free Code Capture Tool! Version 2.1.3 with comments, web-upload, back-save and snippets!
    Nederlandse LabVIEW user groep www.lvug.nl
    My LabVIEW Ideas
    LabVIEW, programming like it should be!

  • Can we apply custom validation before uploading data in WebADI in 12.1.3

    Hi,
    I have requirement of applying custom validation before uploading data from spreadsheet using webADI. How can we do that.
    Is there any way in desktop Integration Manager Responsibilty in WebADI.
    I have just started exploring webADI
    Please Help Me...
    Thanks,
    Suhani

    Why are you posting this in OAF?
    Anyway you can by creating a custom PL/SQL wrapper that is called by the WebADI.
    Raise an application ERROR in your wrapper and it will show in the WebADI
    If you just want to validated VALUES, you are better of creating an LOV on the Column. Then WebADI will do the validation work for you.
    Jeroen

  • How do I stop pop up that asks me, Do you want to save changes to doc... before closing? I have made no changes only printed the file. Using Adobe Reader DC, Windows 7 64 bit.

    How do I stop pop up that asks me, Do you want to save changes to doc... before closing? I have made no changes only printed the file. Using Adobe Reader DC, Windows 7 64 bit.
    This is very annoying and we need this stopped as we have made no changes to any of the adobe files. Please advise how to do this.
    Customer Service DCC

    I first tried the version without the deflated stream (so everything uncompressed) against the online repair tool to check/analyse it @ https://www.pdf-tools.com/osa/repair.aspx
    And it says no error found, but the reader still want to save it when closing so i still had no clue at this point.
    Fortunately, i finally found what was wrong with my generated PDF.
    In my xref table, each object reference was not end by a full EOL, i only did put a newline char.
    Now i have "carriage return" "newline" which is the full EOL and the reader is happy and close the file silently.
    As suspected i did not follow correctly the specs on xref table
    Now i'll go and figure what i did wrong with the deflate filter
    Thanks for your help.

  • F-47 for assets procurement before closing year

    Dear Friends,
    Please advise, is it possible to do asset transaction for the new year before closing or carrying out the year end activities.
    our situation is FY Jan to Dec. We have not carried our year end activitites yet for year 2009, but now we need to do new asset transactions for year 2010 like we want to make F-47, F-48 for new asset.
    Please reply ASAP.
    Thanks.
    Sunil.

    Sunil
    You can allow advance payments by activating / ticking the Special G/L in OB41 for posting keys 70 & 75
    Test it first, if you want.
    Rgds
    Zubin

  • Validation before Digital Signature

    Hello everybody,
    I created a form in Lifecycle ES working like a charm.
    Now i have added a JavaScript for validating the entries in the Form.
    My idea is to launch the validation before the user enters the signature. When the signature is added the validation must have been passed successfully.
    I have begun with adding an event_enter JS to activate the validation.
    The Problem is that the signature dialogue box opens anyway. How can I get rid of this dialog box?
    Thank you for your kind help
    Best regards
                           Ch. Du Champs

    Please post in the LiveCycle Designer ES forum.

  • Cannot save opened tabs before closing the browser

    Cannot save opened tabs before closing the browser. I do not know if there is such a feature (should be), and how to activate it.
    It was very useful with previous version.

    One change in Firefox 4 is to by default stop Firefox displaying the warning message, but it can be turned back on by changing some preferences.
    # Type '''about:config''' into the location bar and press enter
    # Accept the warning message that appears, you will be taken to a list of preferences
    # Locate the preference '''browser.tabs.warnOnClose''', if its value is set to '''false''', double-click on it to change its value to '''true'''
    # Repeat this for these 3 preferences '''browser.warnOnQuit''', '''browser.warnOnRestart''' and '''browser.showQuitWarning'''
    If you always open the last set of tabs an alternative approach is this:
    # Click the orange Firefox button, then select options to open the options window
    # Go to the General panel
    # Change the setting "When Firefox starts" to "Show my windows and tabs from last time"

  • Unexpected & Unnecessary Popup "do you want to save changes to 'x' before closing ?"

    Hi Im running a code that is opening a pdf doc and reading some stuff from it (not editing it).
    avDoc = CreateObject("AcroExch.AVDoc")
    avDoc.Open(FileBox.FileName, "x")
    accroApp = CreateObject("AcroExch.App")
    accroApp.Show()
    accroApp.Hide()
    accroApp.Exit()
    avDoc.Close(0) 'accroApp = Nothing
    But when I close it gives this question "ONLY SOMETIMES"
    "do you want to save changes to 'x' before closing ?
    Previously, i just forced it to save at all times before closing.
    I guess there is a way to avoid this, by setting some dirtyflag=false/true?
    Pls help
    JS

    Check out this post - http://forums.adobe.com/message/3871646#3871646
    My issue was similar and I finally got it to work.

  • Avoid "Do you want to save changes to filename before closing?"

    Hi,
    When I open a reader enabled form and close it without doing anything it prompts "Do you want save changes to <filename> before closing?". How to get rid of this? I tried the below code in the layout ready event of a button but still no effect.
    event.target.dirty=false;
    event.target.requiresFullSave=false;
    Any solution is greatly appreciated. Many thanks in advance.

    Hi radzmar,
    The message pops out when I click on the close button in the adobe reader. How to avoid that?
    Thanks.

  • Disable "Do you want to save changes to *.pdf before closing?" when closing a tif

    We upgraded to Office 2007 and decided to stop using the Office 2003 document imaging tool to view TIF TIFF files.  This tool wasn't included with Office 2007 so we started using Acrobat 9.1.3 Standard as our default TIF viewer. 
    Here is the problem. When you close the TIF document you are prompted "Do you want to save changes to 'xxx.pdf' before closing?" Is there a way to disable this prompt?  We don't want to convert the files since they are in a read only database.

    Nope. Using WORD or Acrobat is forcing a conversion and it not an ideal way to view such files. In addition, you may want to change resolution or such of the graphic before you import it to something such as WORD. Many folks embed graphics that are 3500 dpi and millions of colors and totally bloat the file. They even crop the graphic and reduce the size, wondering why their DOC file is sooooo big. In that sense, there is an advantage to having some of the other tools available. You may have special needs and I do not want to second guess your company needs, so that is my two-cents worth. Sorry that I do not have other ideas, but using an existing graphics package would be the best for your need.

Maybe you are looking for