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
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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.
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.
I'm trying to do a GUI Menu with three buttons. When I click on one button I want it to take me to another part of the menu. This means writing new content to my existing JFrame Content Pane. How do I do this properly?
Every time I try this the button gets stuck and it does not take me anywhere.
Instead It should take me to the next menu I have created.
I have tried removing all content in the Pane and then adding new.
I have put the JFrames content pane in a separate class that handles writing content to it.
Could this be a problem?
Solved:
All I had to do was to repaint and validate the content pane.
Thanks for all the help.
BR,
YAU
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 am developing a desktop Java application with GUI implemented through Swing. I have made a JFrame and have added three buttons on it - Add, Edit, Delete.
Now I want that whenever a user clicks on any of the button, the content specific to that button appears besides those three buttons.
So how to implement this? Should I need to add a JPanel besides those three buttons and then add the content specific to the button to that JPanel?
So far, I have taken a JFrame and have added 3 buttons on it. That's it.
For the Add button, I want to add some buttons and textfields to add information to the database.
For the Delete button, I want to add some buttons to find records in the database based on the information entered through the user in the textfield that appears when the user clicks on the Delete button.
Similar type of content for Edit button.
So how to implement this. Should I need to add a JPanel besides those three buttons and then add the content specific to the button to that JPane
That would be fine. When you push the button, you can call JPanel.removeAll() to remove all the controls currently in the control, and then just do the layout again, specific to whatever button you pushed.
If you have custom swing controls, just add your custom control the JPanel using a BorderLayout and putting in the center.
Another option would be to use a CardLayout, and flipping between the cards when a user presses one of the buttons. If the layouts for the buttons never change, that would probably be a better way to do it. Obviously if the content changes between button presses, you'll need to redo the layout each time.
Either of Chad's or Alex's answers would be fine. You will probably need to call a combination of revalidate() and repaint() on the panel that you've changed, as in the past I've noticed Swing doesn't always like panels being swapped out.
Also, have you considered using a JTabbedPane instead of manually coding the interaction with the add/edit/delete buttons?
I haven't done a lot of Java programming, but I think using 2-3 different JPanel, and make visible the one you need depending on the button that was clicked would do the trick.
I'm not sure if this is the right approach though.
I was using a JFrame to add all buttons and make a new JFrame for a new window and hide a previous one.
gven way are better. I will do that now.