Controlling the desableing of command buttons

I have been having a great deal of trouble trying to work out how to control the command button such that if the rowset is null then the button is disabled. The trick is that the rowset is not defined by the view where the command button is located. The rowset is defined by a view which has a "view" command button which displays the specific row selected, then this view has a command button that will display the detail rowset of the selected master row, but if there are no detail records I want the button to be disabled. How can I do this in ADF JSF? If I use a backing bean to make the determination prior to the page rendering then how does the backing mean method set the parameter necessary to disable the command button? Any advice or tutorial that I can use is most appreciated. My goal with using ADF JSF effort was to demonstrate that a complex app could be generated with minimum coding, I would like to keep to this concept if possible. Thanks,
Michael

Wrong forum. You need the ADF or JDeveloper forums.

Similar Messages

  • I want to refresh my jsf page on the click of command button.

    Hi all,
    i m using JDEV 11.1.2.1.0
    i have created one jsf page with fragment i want to refresh my whole page on the click of command button which is present in fragment page.Besause i want to refresh some field but those are present in jsf page so i cant apply partial trigger because command button property in fragment page backing bean class and those attribute which i want to refresh its property in other class.
    thanks.
    Rafat

    i didnt get you from your content so i go with subject for giving your answer
    refreshing some of the fields
    BindingContainer bindings = getBindings();
    DCIteratorBinding dciter = (DCIteratorBinding)bindings.get("xIterator");
    ViewObject vo = dciter.getViewObject();
    Row row = vo.getCurrentRow();
    vo.executeQuery();or else drop execute operation as button to execute vo.
    to refresh a page
    partial trigger nice options.
    to performs instant refresh
    af:poll component
    so if you don mine give me some scenario using hrschema i may give a liitle try to my small brain :)

  • Is it possible to set the stateof a command button

    I want to call a function when the user presses a command button (left click), then wait until he releases the mouse button, then call a second function.
    Here is the code for EVENT_LEFT_CLICK:
    CallFunction_1(...)
    GetRelativeMouseState(panel, control, 0, 0, &mouseLButton, 0, 0);
    while(mouseLButton)
    ProcessSystemEvents();
    ProcessDrawEvents ();
    GetRelativeMouseState(panel, control, 0, 0, &mouseLButton, 0, 0);
    CallFunction_2(...)
    My Problem is, that the button does not chage its state to "pressed", so it appears to the user that he has not clicked on it.
    Is there any possibility to set the command button th the pressed state?

    The reason for this is that the LEFT_CLICK event has not been processed yet. We allow you to "swallow" any event to basically eliminate the built in effect of that event. In your case you want the normal effect of the LEFT_CLICK event to occur (button appears pressed on the panel), but you also want to launch a loop to check when the mouse has been released. This is easily done through posting a deferred call. A deferred call allows the current event to be completed and then calls the deferred callback after that. So your code would be changed to:
    In LEFT_CLICK,
    CallFunction_1(...)
    PostDeferredCall (funcName, (void*)control);
    Then write a function "funcName" with prototype:
    void CVICALLBACK funcName (void *callbackData);
    and code:
    void CVICALLBACK fu
    ncName (void *callbackData)
    int control = (int)callbackData;
    int mouseLButton = 0;
    GetRelativeMouseState (panel, control, 0, 0,
    &mouseLButton, 0, 0);
    while(mouseLButton)
    ProcessSystemEvents();
    ProcessDrawEvents ();
    GetRelativeMouseState (panel, control, 0, 0,
    &mouseLButton, 0, 0);
    CallFunction_2(...)
    This should solve your problem.
    Best Regards,
    Chris Matthews
    Measurement Studio Support Manager

  • Are there any "execute once" buttons in labview?? (the likes of command buttons in VB)

    In VB, a button can be able to exucute a task or command once when pressed, in other words, we can NOT hold down this button as in the following case:
    Command1_Click()
    text3 = text1 + text2
    Note,that if the form is still running and yo add new numbers to text1 and text2, text3 isn't updated unless Command button is pressed once again.
    Unfortunately in LabVIEW, the only buttons I know are boolean, they seem to be held down when pressed or latched, sothat  when new numbers are inserted in the numeric controls, and mouse is pressed anywhere on the front panel (when vi runs) the indicator is automatically updated.
    So is there any execute once buttons??
    T. A.
    Solved!
    Go to Solution.

    Well the VB code you post is a Event Triggered code, you can use the same in LabVIEW with the event structure.
    The concatenation of strings can be put inside the event case and will only execute when the button is pressed.
    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!

  • How can I control the mouse by command-line ?

    Hi,
    Does anybody know if there is any command that I can use to control the mouse event, like: move cursor to some place, click, double-click, etc.?
    Thank you!
    ps. what I want to do is to bind keyboard to mouse, so that I can use keyboard to control the mouse, but I want to try some algorithms of controlling.

    I'm not aware of mousekeys being configurable, but switch to it:
    alt-shift numlock
    then try the number pad.
    EDIT: Or were you looking for something an easy binding to xlib as in swarp?
    Last edited by vogt (2008-02-15 04:44:25)

  • I can't find the reset firefox command button - even after trying the menu and the trouble-shooting page as per the directions.

    I want to reset firefox but all I get to after following the directions in Mozilla support is every more descriptions/explanations of what the commands mean. But I never get to the actual command 'reset firefox'. Where is it?

    By way of background, this is the article on Reset describing what it does, what you keep, what you lose, and how to do it: [[Reset Firefox – easily fix most problems]].
    So... is the button missing? Open the support page using either:
    * "3-bar" menu button > "?" button > Troubleshooting Information
    * (menu bar) Help > Troubleshooting Information
    * type or paste about:support in the address bar and press Enter
    The Reset button usually is in the upper right corner of the page in its own little box. Missing?
    By the way, why do you want to reset?

  • Control the Timeline, from a button inside a movieclip.

    First off, I have a movie clip called mc_instructions.  Inside the movie clip, about 940 frames into it, a button appears called btn_ready.  I need this button to bring me to frame 3 on the main timeline when clicked on.
    How can I do this in ActionScript 3.0?
    I can't figure it out!
    Thanks
    Don

    on frame 940:
    btn_ready.addEventListener(MouseEvent.CLICK,f);
    function f(e:Event):void{
    gotoAndStop(3);

  • My buttons on my nano arent working but i can control the volume and center

    my buttons on my nano arent working but i can control the volume and center buttons and idk y its acting up

    Try Restoring it in iTunes. If that does not work you will probably need to get it serviced.

  • Want total control over the size of a button

    What do I do if I want to control the size of a button completely and not let something else do it for me automatically? What layoutmanagers allow me to completely control the size and which do not?

    For total control over the button size, call container.setLayoutManager(null). This, however, disables all automatic layout; not only will you have control over the size of your button, you'll have control over its position and the size and position of all other components in that container. You'll also have the responsibility to set them.
    While this is desirable in some circumstances, you normally want to use a LayoutManager. These managers allow your code to be modified with greater ease and handle a lot of the work for you.
    You can always call jbutton.setPreferredSize(new Dimension(x,y));[b] to attempt to communicate to the LayoutManager the size that you would like the button to be. [b]jbutton.setMinimumSize and jbutton.setMaximumSize are also useful. (These calls assume the existence of a field jbutton which contains an instance of the class JButton.)
    These, however, only work if the LayoutManager honors your requests; it is quite possible for a LayoutManager to ignore your sizing requests on the objects it is laying out. Most of the managers that Sun provides respect the requests their users make, but many third-party LayoutManagers aren't capable of doing so for one reason or another.
    Yet another solution is to write your own LayoutManager. The interface is relatively simple. I personally have been working on a project in which a workspace allows users to move components around. Because of this, the component has to stay where the user put it, although its size should be adjusted according to its needs. I had to write my own LayoutManager for this because none of those that Sun provided properly suited my needs.
    Which way would you like to tackle this?

  • How to send a command from a vc++.exe to LABVIEW.exe in order to control the button on the LABVIEW.exe

    Hello, everyone. Using VC++, I have gotten the handle of a *.exe(built by Labview), but I cannot get the button handle. I want to get the button handle and post the message to control the button. How can I do that? When I use the SPY++, the *.exe(built by Labview) have not any child windows which is very different from the *.exe(built by VC++). In SPY++, what is the LVDChild class? How can I send the message to control the button on *.exe(built by Labview)???
    That is  to send a command from a vc++.exe to LABVIEW.exe in order to control the button on the LABVIEW.exe. How can I get it ?
    Thank you!

    hummingbird wrote:
    Thank you! But I dont kown how to use vi server to raise a value signalling event. Can we put vi server into the vc program? Can you give me some more information or some examples, hehe!
    hummingbird
    Checkout the LabVIEW ActiveX server interface in the User Manual in Chapter 20, Windows Connectivity and the VI Server Reference in Chapter 17, Programmatically Controlling VIs.
    There is a sample for Visual Basic under examples/comm/VBtoLV.frm, which should be quite simple to translate to Visual C as long as you can figure out the basics of ActiveX programming in VC (I have never done anything with ActiveX in VC). For those basics I would recommend some text book or MSDN.
    Rolf Kalbermatter 
    Rolf Kalbermatter
    CIT Engineering Netherlands
    a division of Test & Measurement Solutions

  • How can I control the enable/disable of command buttons in ADF JSF

    I have been having a great deal of trouble trying to work out how to control the command button such that if the rowset is null then the button is disabled. The trick is that the rowset is not defined by the view where the command button is located. The rowset is defined by a view which has a "view" command button which displays the specific row selected, then this view has a command button that will display the detail rowset of the selected master row, but if there are no detail records I want the button to be disabled. How can I do this in ADF JSF? If I use a backing bean to make the determination prior to the page rendering then how does the backing mean method set the parameter necessary to disable the command button? Any advice or tutorial that I can use is most appreciated. My goal with using ADF JSF effort was to demonstrate that a complex app could be generated with minimum coding, I would like to keep to this concept if possible. Thanks,
    Michael

    Hi Michael,
    You can probably set the Enabled property of the command button using an EL that would evaluate and return true or false based on your requirement.
    Check out these links for more information on using the EL.
    http://radio.weblogs.com/0118231/2006/11/10.html
    http://database.in2p3.fr/doc/oracle/Oracle_Application_Server_10_Release_3/web.1013/b25947/web_dcp006.htm
    -Arun

  • How do I control the size of a command buttoon in a table control?

    Hi,
    I was wondering if there is a way to control the height of a command button in a table control.
    There does not appear to be a column or cell attribute that can achieve this.
    Thanks!
    --Bill

    Hi Wolfgang,
    Thanks for the reply, I came to that conclusion as well. What I have is a mixed table with instructions that word wrap in one cell, a command button to log step completion, and I needed the row height to be set to the tallest cell contents, so all I really needed to do was set the word wrap for my text instruction cell, and then as each row is programmatically inserted and the table is populated call:
    SetTableRowAttribute(panel, table, row, ATTR_SIZE_MODE, VAL_USE_EXPLICIT_SIZE);
    SetRowHeightToTallestCellContents(panel, table, row);
    That will allow the row to be sized accordingly without having to worry about the number of visible text lines for the text cell.
    Thanks!
    --Bill

  • Controlling the display of the help (?) button

    Has anyone had any experience with controlling the display and linking of the help button? I have two questions in particular.
    First, how do I force a channel to not display the help link (the question mark button)? I have several channels that do not have the helpURL property defined, but the button still shows up?
    Second, where are the links/image elements defined for the help/edit/minimize buttons? the leafWrapper.jsp pulls the hashtable out of the HttpRequest, and that hashtable is being used by providerCommands.jsp:
    Hashtable commands = (Hashtable)request.getAttribute("provider_cmds");
    Any idea where this is being set?
    Thanks for the help ;-)
    Matt

    I've got a very similar situation. I'd like to tie a channel to a particular help file (on the same host that the channel is served by). I log in using the amAdmin account (for some reason I have to put a capital A for the Admin part, but that's another issue), select my Organization, show roles, click on the appropriate role, show Services, click the link after Desktop, click Channel and Container Management, then Edit the URLScraperProvider channel. I've filled in the values for title, description, url, and width. The remaining properties are apparently inherited from the provider, and include urlScraperRulesetID (default_ruleset), fontFace1 (Sans-serif), productName (Sun ONE Portal Server), cookiesToForwardAll (checked), inputEncoding (iso-8859-1), cookiesToForwardList (I haven't changed anything here), and timeout (100).
    I don't see helpURL anywhere in the properties associated with my channel, however, there definitely is a help button on the channel, and it goes to some generic Sun ONE documentation on URLScraper channels.
    When I attempt to add a string helpURL property (leaving the value blank, or setting the value to "", or point it at the URL the points to my help file), and submit the form, I get an error message indicating "A property with the same name already exists."
    So, what am I doing wrong? Is this the right place to be setting the helpURL? If not, where should I do this?

  • .xlsm Can't exit design mode because Control 'Command Button 3' can not be created

    I have several Windows 7 Enterprise machines that cannot open one .xlsm file properly. When it opens, it is opening in Design mode rather than as a spreadsheet with macros. My users are getting the error "Can't exit design mode because Control
    'Command Button 3' can not be created". All our machines have Office 2010 ProPlus, but this file will only open on the XP PC's that have yet to be upgraded. Any ideas?

    Hi,
    How do you create the button in Excel 2010? Just insert the control manually or insert it using a macro?  This issue may be caused by the controls aren't instantiated before you can exit design mode.
    Please try the method:
    Code can only run after all controls are instantiated and properly connected. Make sure every file needed for the control is available before trying again.
    Quote from:
    http://msdn.microsoft.com/en-us/library/office/gg251344(v=office.14).aspx
    Regards,
    George Zhao
    TechNet Community Support

  • Open a new window while clicking on the command button

    Hi,
    Can I open a pdf report in a new window when adf command button is clicked?
    I am using jdev11g
    Thanks

    Hi John,
    I found the goButton's destination expression do not read value from any controls e.g.: Input Text.
    Is there anyway to read some value, that input by user not in the db, on the screen?
    e.g.: I have a Input Text for user to input a date to print the report. I've tried to binding the control in backingBean, but I get a null value from the goButton's destination function.
    the jspx:
    <af:inputText label="Search" id="it1"
                            value="#{backingBeanScope.backing_goUrl.it1Value}" autoSubmit="true"/>
    <af:goButton text="goButton 1" id="gb1" targetFrame="_blank"
                           destination="#{backingBeanScope.backing_goUrl.searchURL}"/>in the backing bean:
    public class GoUrl {
      private String it1Value;
      public String getIt1Value() {
        return it1Value;
      public void setIt1Value(String it1Value) {
        this.it1Value = it1Value;
      public String getSearchURL() {
        String s = getIt1Value();
        return "http://www.google.com/search?hl=zh-tw&q="+s; // the result of s is always null.
      }Cheers,
    Samson Fu
    Edited by: Samson Fu on Aug 31, 2010 1:46 PM

Maybe you are looking for

  • SAP Down Payment Clearings in FM

    Hi,  I created a downpayment with reference to a purchase order and later  posted a invoice receipt (I/R) to the same purchase order by manually select the "Down Payment Clearing"  function in MIRO.  The all process is OK.   But when i  reverse this

  • Urgent Help Plz..

    Hey all, The requirments for installing the ESS buissness package the new one which uses Java Webdynpro technology for IViews is having the ERP 2004 as the backend system Web application Server 6.4 and EP 6.0 Netweaver 04 I have all of the requirment

  • Where does Safari store the full list of sites visited?

    I have just started using Safari on my computer and noticed that it pulls down an immense list of site suggestions as soon as I start typing an URL. On closer inspection, these are all sites that I have visited in the past, with other browsers (IE an

  • Mandatory field in sales document

    Hello experts, I'm working with CRM 4.0 SP08 How can I make mandatory some fields into CRM sales document ? 1 - Requested delivery date at header level. 2 - Reference date at header level. How could I fill up theses fields automatically by default ?

  • Xp drivers for G570

    hello i need the following drivers : -sound. -wlan. ACPI\VPC2004\0 PCI\VEN_8086&DEV_1C20&SUBSYS_397517AA&REV_05\3&11583659&0&D8 ROOT\MEDIA\MS_MMDRV Solved! Go to Solution.