I have a JList that gets filled up with values with a DefaultListModel.
By entering a name and pressing on a button it gets listed in the JLlist (vertical wrap).
But the odd thing is they get placed underneath each other properly (8 items).
But starting from 8 items suddenly al the items get listed right of it again (like shown below).
The JList itself is more then big enough, so what could be causing this most odd behaviour?
All the items below get stored in a list and are being added to the default list model.
1 9
2 10
3
4
5
6
7
8
But the proper output should be everything listed underneath each other.
Read the JList API and follow the link to the Swing tutorial on "How to Use Lists". There it will explain about the "setLayoutOrientation" method which supports 3 values:
Vertical
Vertical Wrap
Horizontal Wrap
You must have set this property somewhere in your code.
Related
I have a mouse that has a total of 12 clickable buttons on it, including the left/right/middle ones. I'm trying to use the awt robot to click one of the side buttons, however if I use MouseInfo.getNumberOfButtons() it tells me I only have 5 buttons..
If I try to use getMastForButton() on any button number higher than 5 it gives me an error java.lang.IllegalArgumentException: Invalid combination of button flags when I try robot.mousePress(6) for example.
I may be misunderstanding the documentation, but according to this, any extra buttons are just the integer ID? So it shouldn't stop at 5, right?
I'm using JDK 1.8.0_66, any pointers would be appreciated.
I use ComboBox, once put into a list (FXCollections.observableArrayList) with 2 short lines, then a list with a large number of rows.
After I change from the list with 2 to list with 15 (or more) - I see only 2 line each time inside ComboBox.
How do I change this setting? How display 4 or more?
Relevance code:
cbQueriesOptions.getItems().clear();
cbQueriesOptions.getItems().addAll(itemsQueriesOptionsString);
cbQueriesOptions.setVisible(true);
cbQueriesOptions.setDisable(true);
cbQueriesOptions.getItems().clear();
cbQueriesOptions.getItems().addAll(itemsQueriesOptionsAll);
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.
I am working on an Android project. In my app,I have 3 tabs. As the Activities I use have many things in common (e.g. ListView), I use inheritance as below:
List a is generated by my SAXHandler and it creates a new list in startDocument ().
I have a testcase of which the list in A_Activity has 7 items and B_Activity has 3 items. When my app starts, I have no problem clicking on all the items shown in A_Activity. After I click B_Activity and switch back to A_Activity, I also don't have any problem clicking on the first 3 items; however, if I click on the fourth items, I get
java.lang.IndexOutOfBoundsException: Invalid index 3, size is 3
If I increase the number of items on B_Activity to 4, I get the same exception with 3 replaced with 4. So, I am certain that the cause of it is that when I jump back to A_Activity from B_Activity, the list in A_Activity is still referring to B_Activity's.
Your advise will be highly appreciated. Thank you!
You can do simple thing just clear the adapter data and call notifyDataSetChanged of an adapter class each time you switch activity.
Tab is started with 0. So start with 0.
tabhost.setCurrentTab(0);
1 means->0
2 means->1
and so on
I have a JSF page. At one point, I have a <h:selectManyCheckbox> that is displaying a number of items. The tag provides 2 attributes you can set to define whether the contents should be displayed horizontally or vertically. However, with more than a few items both choices look bad. Go with horizontal, and everything ends up bunched up. Go with vertical, and you can make your page unnecessarily long. Is there any way to get the best of both worlds? Specify that there should be x number of columns, for example? Say I have 20 items and I'd like 4 columns. If that number grew to 100, I'd still want only 4 columns. The list would then grow vertically.
Is this possible?
Use Tomahawk's t:selectManyCheckbox instead. It has a layoutWidth attribute exactly for this purpose.
There is no such tag rich:selectManyCheckbox only h:selectManyCheckbox