So I'm doing a project that requires a lot of checkboxes. And all those selected checkboxes will go to the texture or something trigger by a button. I already browse here and I came up with this.
The code actually is almost what I'm looking for. But the problem is the way it displays.
What I want is to remove those [ , ] because I want to be the one who controls the way the text is display.
Well, passing the checkboxes List to the showMessageDialog method is implicitly calling List#toString(). The implementation of this method in class ArrayList is to print a comma-separated list of the values, just as you see it. If you want to display it in another way, you'd have to iterate over the elements of your list and build a string according to your likings.
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i have a jComboBox, it happens that i may have the same value for more than on item. In this case, when selecting one of them, , the selection goes always to the first item on the list. Right after the click.
Have someone experienced that?Have some solution for that, so the selection doesn't change?
When i select:
http://i.stack.imgur.com/IjlYM.png
Checking again:
http://i.stack.imgur.com/c1lcQ.png
it happens that i may have the same value for more than on item.
Then it sounds like you are adding a custom object to the combo box.
If it displays the same value but is a different item, then you need to implement the equals() method in your Object so the proper Object can be selected.
If you need more help then post a proper SSCCE that demonstrates the problem because we don't have enough information to keep guessing what you might be doing.
A JComboBox always tries to synchronize what is selected in the lists with what is shown in the display field. To do that, it searches the list sequentially for a match of the editor field. So it will always find the first one if there are identical items in the list. Thus you can't just use String objects if there is a possibility for identical Strings in the list. You need to do what #camickr said and use a custom object that has some way to distinguish between two objects whose toString() method returns the same thing (assuming you use the default model and editor).
I want to create a webpage that looks like this one:
This is done using a table. Each row describes an object and I want to be able to select multiple of those objects. When one of the submit-buttons is clicked, I want to get the list of selected objects. I know there is the class CheckBoxMultipleChoice, but the generated output is not what I need.
I think I should use a ListView, but since the number of objects is dynamic, I do not know how to access the states of the checkboxes. Could you please tell me how I can achieve this layout?
You should use a CheckGroup with one Check component in each row.
I have a JComboBox which I designed in the Netbeans GUI designer. I have successfully bound the "elements" of the box to an ArrayList<String> so that the box populates properly. However, it currently automatically displays the first element of the list as the selectedItem.
I tried to bind the selectedItem to an int at first, thinking it would just show the item at the indicated index. No go. I got a ginormous exception that I didn't understand.
Then, I noticed that in the "Binding" window, it said the element had to be an Object. So, I bound it to a String, thinking that it would find the element that matched that string and show that element. No dice. Now I'm getting some sort of "PropertyResolutionException". I've even tried to use an Integer object with the same result.
Any ideas would be appreciated.
Absent your sscce, it's hard to say where things have gone awry. For reference, setSelectedItem() works as advertised in this example that selects L&F by name.
I want to generate a clickable event from text area which contains a list of names of people. When we click on a certain name it must make a call to a method (which in turn is going to display the details of that person from a XML file).
Is this possible with text area? I have heard about JTextPane, but I need some other option.
Yes it's possible. Use viewToModel() method to get offset for the clicked point. Then use Utilities to getWordStart/getWordEnd methods to get the clicked name. Then just pass the name into desired function.
i am trying to generate a checkbox list feeded by some records from a database just like the image (JAVA Swing), initially i tried with several chexkboxes but it didn't work, now i am trying with a multiple selection list but it didn't work as well and none of the answered questions here looks like to solve the specific needs i have.
Specifications:
Multiple selection list.
Every node of the list must have a checkbox object.
When checked every node must stay highlighted.
It must have an scrollbar if the content is bigger to the initially setted dimentions.
It must have an scrollbar if the content is bigger to the initially set dimensions.
Put the JList inside a JScrollPane.
When checked every node must stay highlighted.
This is going to confuse the user. The check marks are sufficient.
Every node of the list must have a check box object.
You'll have to extend a JList and a ListCellRenderer to gain this functionality. The ListSelectionListener that I have is over 100 lines of code.
You might find an already existing check box JList on the web. I have one in a book.