Some of the constructors provided by Dialog API's DialogDescriptor accept JPanel as the first parameter. Is it possible to have a button inside this panel that triggers the Dialog closing as well as specify a return value?
I want to make such a "resolving conflict" dialog, just like how Ms Windows offers Copy/Discard/Copy Both options when we copy files from one directory but there are files with the same name in the destination directory. Note that pressing one of three buttons will close the dialog, but actually none of them is listed as closing options; the closing options itself consist of "Skip" and "Cancel".
Maybe you can try think the other way: making a panel manipulating the dialog outside of it introduces unnecessary dependency. Why not make the dialog pass in which button is clicked when closing and have the following logic done in the panel? You purpose is to do something when "Skip" is clicked and something else when "Cancel" is clicked, right? So let the dialog tell your panel what's clicked instead of let the panel dispose the dialog would be less coupling.
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I work with swing to build GUI. Hello everyone
I have 2 tabs (JTabbedPane) that I want to synchronize.
For example, on the image below, I would like that if I click on the Rent button, the line can be automatically added to the My leasing tab so that if I go to the My Leasing tab, I find the line that has just been added.
Currently, to see the line that has just been added to the My leasing tab, I must log out and log back in.
I tell myself that there may be a listener to put in place but I do not know which one.
You need to respond to the click of the "Rent" button.
Check out the Table Button Column. This class allows you to add an ActionListener which is invoked whenever the button is clicked (or activated by using the space bar).
The example code shows how to delete a row from the model. In your case you would want to copy the data from one model to the other.
We have an application which, as its first UI action, displays a modal JDialog without a parent frame.
public LoginDialog(Frame owner, Config config, Object... params) {
super((Frame)null, true);
It unfortunately has the annoying characteristic that when it appears, although it comes to the front, it does not grab the focus.
So the user, after launching the application by double-clicking on the start menu, has to use the mouse to select the "login" dialog and type in information.
Is there a way to make this JDialog grab the focus when it appears in the front?
I've tried calls to "requestFocus" before, after and via invokeLater "during" the call to setVisible(true) - but none of these seems to have any effect.
How do we make a modal dialog grab the focus?
UPDATE: The issue was the code used to try to present a background "wait window". This window was displayed "behind" the login dialog as a hack so that when the dialog disappeared the user would see the "Please wait" message. As it was the first window created by the application, it got the focus. I am not sure if there would have been a way to make the dialog gain the focus again inside the event dispatch thread with this hack - but I fixed it by un-hacking it and doing things properly.
First, it a little strange that modal dialog is parent-less. The point in modal dialog is that it is displayed on its parent and does not allow to access parent.
So, the first recommendation is to make it non-modal. I believe it will work.
BTW I have just tried to create such dialog and have not problems with focus. Try probably to simplify your code:
JDialog d = new JDialog();
d.setSize(200, 200);
d.setVisible(true);
This works for me and I believe will work for you. Now start changing this simple code towords your real application code. At some point it will stop working and you will see where the problem is.
If nothing helps try to use the trick I described in this article. Look for title "Portable window activation". I hope it will help.
See Dialog Focus for a potential fix using a RequestFocusListener. I have used it successfully for setting focus in JOptionPane dialogs.
1) you have to create JDialog contents and showing container wrapped inside invokeLater()
or best and safiest way is
2) you have to set for ModalityTypes or Modal for parent
3) only one from containers could be Modal in applications lifecycle
I'm developing the Java Swing application. I'm quite new to Java, so got some questions. I have a modal window with some set of controls (text fields, buttons etc).
I want to handle click on the button in the parent window. I think the most efficient and accurate way is first to handle it in modal window, then raise some another event from the model form and handle it in the parent form.
Is this approach right and what are the best practices on doing that?
Thanks for your help!
In general, the dialog that contains the button should handle the button click.
However, maybe you can use a JOptionPane. It is designed to return which button was clicked and then you can do custom processing based on the clicked button. Check out the section from the Swing tutorial on How to Make Dialogs for some examples. Also not that you can add a panel to an option pane. In this case you may find the Dialog Focus tip usefull.
I suppose what you want is for the action (or an action listener) of a button in the parent window to process a mouse click on a button (or anything) in the modal dialog.
There are infinite ways to do that. You can pass the action to the modal dialog, pass the button and call doClick(), pass an implementation of an interface that can redirect mouse click (or anything), etc.
Or if instead you want to click the actual button in the parent window when the modal dialog is up, look up the definition of modal.
I have a general question. I would like to have a window containing some buttons, radio buttons, text fields and so on. So, user can do something (write text, select options and press buttons). As the result of the user activity window should change it structure/appearance some element should disappear and some appear.
How do I program such "updates"? Should I close an old window and open a new one or I can modify content of window without closing it?
After adding your components or such, calling revalidate() on your container will do the updates
I am programming a GUI application in Java. I do it for the first time.
I would like to have a form (with radio buttons and so on). After the form is filled in and the "Submit" button is pressed I would like to have a new window. I see two potential ways to do it:
Close the "old" window and open a "new" one.
Remove "old" elements from the existing window and put there "new" elements.
What is the standard way to go? If it is the first way, what is the command to close the window? If it is the second one, how can I remove elements from the existing window?
What you should do is create new JPanel for all the windows you want to show, then remove (or hide) the panel you want to hide and add or show the one you want to show.
I don't know too much about Java so I can't answer to your specific questions, but I want to remind you of the window opening/closing effect since Windows Vista: It looks kind of weird in some older setup wizards where everytime you click next the window fades out and in...
I think the most logical way is to have 2 objects("Close the "old" window and open a "new" one")
Anyway, I suggest you make an abstract class with the common elements, and then extend it with Window1 and Window2.
Java frames are destroyed with the dispose() method.