Disable component in a panel

1. I would like to disable some components in a panel. While i am using component.setEnabled(false) the component dims. Is there any other way to disable the components?
2. I would like to replace a component by a label in a panal. Is it possible?

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Foreground color of a disabled component

How do i change foreground/text color of a disabled component? Something similar to JTextComponent's setDisabledTextColor().

I'm not exactly sure but I think this is highly component dependent and even look & feel dependent. Sometimes, there isn't even a such color defined anywhere. The component's ui just takes the current foreground color and calls brighter on it.
You'll have to be more specific on the component you wish to modify.

JSF - Disable component messages

Is it possible to disable component's messages when using custom validators? I only want to display a list of messages on the top of the page, not the default behavior that displays the detail error message next to the component.
Can anyone help me? Thanks

Hi,
you could use the GlassPane for this:
JPanel glassPane = new JPanel();
glassPane.addMouseListener(new MouseAdapter() {
// select components on mouse events
glassPane.addMouseMotionListener(new MouseMotionAdapter() {
// drag or resize components on mouse events
frame.setGlassPane(glassPane);
glassPane.setVisible(true); // must be called after setGlassPane() !!Sven

Skipping a disabled component in the tab order

It seems that when you disable a button, it isn't
automatically skipped in the tab ordering. Worse than that, the two
obvious methods of skipping a disabled component (in topic summary
above) have no effect. .... Is there a solution for this?

Hi,
i got the solution i came to know the meaning of it
thanks

Component visibility getting delay while drop the component in the Panel

Hi,
In my project I have used drag and drop functionality to drop the Icon from 1st panel to 2nd panel. The 1st panel contains three buttons with different icons and the 2nd panel is added as the destination (Drop place) in the desktop pane. While drag and drop I have used a panel and label to place the icon in the 2nd panel. The icon which is available in the label visibility getting delay(nearly 5 - 10 sec) at the first time drag and drop. After that there is no time delay for the drag and drop. This happens all the time while start my project. I have tried repaint() and revalidate() for all the panels still the delay is there. Kindly suggest any idea to reduce the delay.
Thanks in advance...

Component visiblity getting delay while drop the component in the panel in java swing with comment "Kindly suggest any idea to reduce the delay" - A SSCCE by @MadProgrammer

Adding component to Navigation Panel -

Hi,
I have developed a JSPDynPage Component. After developing the component I need to add that component to my Navigational panel using an iView. Unfortunately I am not able to achieve this.
Can anybody please suggest me how to add a JSPDynPage component to Navigational panel?
Thanks in advance for your responses!!!!
--Vishal

Vishal,
Unfortunately, this is not an easy task. Have you worked with the Default Framework Page before?
Read the following links;
Default Framework Page
http://help.sap.com/saphelp_nw2004s/helpdata/en/b4/771158e4cb4bf6af9974380948db86/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/97/d4ee3d6434445ae10000000a11405a/frameset.htm
Regards,
James

How to dynamicly add a component to a panel

when I click a button, I want to add a component to a panel, how can I do ?
I try to do this:
public void actionPerformed(ActionEvent e)
contentPane.add(label,"north");
contentPane.repaint;
but there is no effect. Could u help me?

Could you tell me why the repaint method doesn't work?repaint() does some low level validation and its more often suits for refreshing JList,TextFields etc etc...
JPanel is somehow a more weighted component compared to JLabel,JTextFields etc,etc and hence it needs some heavy refreshing and these heavy refreshing can be obtained by doLayout() and validate() and some times both.
when I add a component into another component, how can I get the new performace of the updated component?Is there a universal way? Pls put ur question more clearly.

Disable grading on current panel shortcut bug

Hello,
I am beginning to feel like I am working for Adobe...
When you use the
Disable grading on current panel (hold down)
[Numpad] ,
[Numpad] ,
shortcut,
and then you want to go back in history states, each time you pressed "," seems to be counted as a history state, so it has no effect when you ctrl+z except getting you closer to reverting effectively.
Maybe this is because my keyboard is in french and the numpad instead of displaying "," displays "." ? But I doubt it.
Thanks.
Fred

Yes. it is a known issue, and it's very annoying. I have reported it to Adobe as a bug a time ago, but....
Please, fill a bug report at: https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform

Disable main vi front panel

Hi,
I have a main vi and a subvi which is opened from the main vi. Main vi is maximized (takes all screen) and subvi is small one. My desired behavior is: the main vi opens the subvi, main vi must be visible in the background, but it must not collect any event (e.g.. If button on the main vi is clicked when the sub vi is opened).
I know that can be achieved with setting the subvi to modal, however I do not want to do that (because subvi opens also some other windows, ...).
Is there any other way to prevent the main vi to collect events while the subvi is opened (e.g. To disable whole front panel at once)?
Thanks!

Hi,
As an alternative to a modal dialog, you can use the VI Server "version" of the modal functionality, by using the FP.IsFrontmost VI property.
How Do I Configure My LabVIEW Application Window to Always Be on Top?
Alternatively, you can programmatically "take" focus from your subVI once, when it launces by using the Application / Bring To Front invoke method.
You can also programmatically give the Focus to the subVI from the main VI, that is a bit more compicated as you need a VI reference to your SubVI (See Calling a VI by Reference). Then you can for example use FP.IsFrontmost again.
Best Regards,
T Simon
National Instruments
Applications Engineer
Certified LabVIEW Developer - Certified TestStand Architect

Setting a fixed width and a changing height for a component within a panel

Alright guys here's my next question. I'm now having trouble trying to figure out how to only resize the height of a JTabbedPane yet keep the width fixed. In other words, as the JPanel its in changes in size, I'd like to have the width of my tabbed pane stay a certain value yet let the height of it adjust to the panel's height as it changes. Is there a way to somehow extract the panel's height into a int or something and then when using the setPreferredSize() function simply implement this retrieved value into the function's height parameter? I've tried messing around with Dimensions and getHeight() functions and the sort but to no success. For instance, within the constructor of one of my JFrames using System.out.println(this.getHeight()); prints 0, when of course this is not the case in reality for the frame's height. The panel's changing size is due to the user resizing the window its in. In one of my previous threads in this forum I learned how to use a GridLayout (it was 2 rows and 1 column in size) to keep the height of the top area in a BorderLayout fixed, yet as the user resized the window, the layout would stretch the area width-wise accordingly. However, that was because I had 2 cells in the layout to control, and I know this wouldn't work with only 1. Any ideas?

You still apparently haven't read the tutorial on using Layout Managers to understand the capabilites of each Layout Manager.
For instance, within the constructor of one of my JFrames using
System.out.println(this.getHeight()); prints 0, when of course this is not the case in reality for the frame's heightComponents don't have a size until the GUI is visible on the screen. That is until you've done a pack(), or a setVisible( true ). You should never be using setSize().
Layout Managers use setPreferredSize() ,setMinimumSize() and setMaximumSize() as suggestions for determining the layout. Although most layout managers don't use all the suggestions, which is why you need to read the tutorial to find out how the layout managers work.
I'm now having trouble trying to figure out how to only resize the height
of a JTabbedPane yet keep the width fixedWell, I don't understand the requirement. The preferred size of a tabbed pane is equal to the preferred size of the largest tab added to the tabbed pane. So I don't understand the concept of artificially changing the vertical height.
Anyway reread the tutorial on "How to Use the Border Layout". Two of the 5 areas respect the width of the component but alter the height to fill all the available space.
If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its original formatting.

Facing problem to add component in a panel dynamically

I face serious problem to add component dynamically on a jpanel. can any one help me?
I have one panel inside a frame. And I have another 3 or 4 panel. dynamically i want to change the panel inside the frame with the other panel.
can anybody help me with source code?
Your earliest response is highly appreciated.

remove is reflected immediately without calling
validate() but it does not work for adding. please
give me some code.Post a small demo code that is generally compilable, runnable and could reproduce your problem. See: http://homepage1.nifty.com/algafield/sscce.html and http://www.yoda.arachsys.com/java/newsgroups.html

Keyboard shortcut enable/disable transfer option (Brush Panel)

Is There a way to assign a keyboard shortcut to enable/disable the transfer option in the Brush Panel ?

Not sure for Mac, but in Windows I can enable, disable or change this option. However, according to https://support.skype.com/en/faq/FA12024/what-are-hotkeys-and-how-do-i-use-them-mac and https://support.skype.com/en/faq/FA12074/what-keyboard-shortcuts-can-i-use-with-skype-for-mac-os-x seems that these options are available for Mac OS.

Align with component in another panel

ok, I have two panels with a checkbox and a textfield in each. I want the respective checkboxes to be aligned and also the textfields with eachother.
another question is if I can set the background of a JTextArea if it doesn't have a name, I've just added it to a panel with
panel.add(new JTextArea("hello my friend");
greatful for advice
love/m

no, I can use any layout that helps me get the result I want!
right now, I've chosen another solution, but I still would like ideas on alignment since the new design includes four panels with different contents. I wants the four panels to have the same size (oh, they need to be in individual panels since they all have different borders) so I've used gridlayout. but now the component JTextField grows to an ugly size trying to fill the flippin' panel.
does this make sense? I hope you understand what I mean.
best regards/m

Problem facing while Enabling the disabled component in the client side.

I have a input text component as below
<h:inputText id="city" disabled="true" rendered="true" styleClass="DisabledField" id="city" maxlength="21" value="#{addressbean.city}" />
Initially this component is rendered as disabled. When user changes a value in the DropDown next to it, i invoke a javascript where i enable the abv text field.
function onCountryChange(city){
city.disabled = false;
city.className = "TextBlackNormal";
Now user types a value in the city text field and Submits the form.
In the action method of the managed bean, i found #{addressbean.city} is always empty. ( i am not able to retain this value in next page )
Can anyone explain why it is happening? could you please help me how to resolve this ?
Thanks
-vijay

You need to enable it at the server side as well.
So, either use Java/JSF instead of Javascript (if necessary with some ajax flavor for better user experience) or let Javascript pass a hidden input parameter and let the 'disabled' attribute rely on it.

Put component in different panels ?

Hi there,
i am creating a GUI and i want to apply a GridBagLayout.
the gui is arranged on different row, each row has got a label and another component ( JcomboBox, JTextfield,etc.).
So, is it much bettere put the component on each row in a panel and then apply a Gridbaglayout at the container or what ?
Cheers.
Stefano

It depends on what you like to achieve.
If you like to have labels for component
somehow aligned to each other, then use GBL
If not, grid or box layout may serve as well
( and they are easier to use - less typing )

Disable component in a panel

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