jformattedtextfield

JFormattedTextField destroys DocumentFilter

由 余生长醉 提交于 2019-12-10 23:40:12
问题 I have a Problem with the JFormattedTextField (I use it as a base class for all of our text fields). Today I tried to add a document filter to the document of this field which works just fine, but only as long it doesnt have a formatter factory set. The Problem is, when the formatter factory is set (in my case the default classes) and processFocusEvent is called following happens (JFormattedTextField.java:595): // if there is a composed text, process it first if ((ic != null) &&

how do i limit the length of the input i want inside a Jtextfield?

由 ▼魔方 西西 提交于 2019-12-10 18:45:54
问题 username = new JTextField(""); username.setBounds(330, 550, 230, 30); username.addActionListener(this); username.requestFocus(); // sets focus on JTextField this.add(username); 回答1: JTextField username = new JTextField("") ; final int limit = 10; username .setDocument(new PlainDocument(){ @Override public void insertString(int offs, String str, AttributeSet a) throws BadLocationException { if(getLength() + str.length() <= limit) super.insertString(offs, str, a); } }); 来源： https:/

Swing - MaskFormatter - Enter Numbers from Right side of the textfield

由 你离开我真会死。 提交于 2019-12-10 14:57:52
问题 I'm new to Swing Java development. Can some one help me on this. I have a jformattedtextfield with maskformatter. it works just fine. But only thing i would like to know is if we can make this to enter the numbers from right. The below code works just fine to enter the numbers from left to right. Thank you for your time. Here is the java code i have: public class MaskFormattedTextExample extends JFrame { private static final long serialVersionUID = -1212313123; JFormattedTextField timeField;

How to custom formatter JFormattedTextField to display an IP address?

由 匆匆过客 提交于 2019-12-10 13:58:01
问题 I have been trying to custom JFormattedTextField to display a mask for entering an IP address. I read javadoc, and I tried with ###.###.###.### , but it's not valid in many cases. I found some article for this, they use Regex to format value but they don't display a mask for entering an IP. I want to display 3 dots in text field to display IP address. Like this: . . . I can input a IP Address in many cases. You can see in IPv4 configuration in Windows. . . . Can you help me? Thanks for

How to use JFormattedTextField allowing only letters and numbers

由 假装没事ソ 提交于 2019-12-06 14:27:41
I have this code and cannot get MaskFormatter right maskformatter MaskFormatter formatter = null; try { formatter = new MaskFormatter("HHHHHHH"); } catch (ParseException e) { e.printStackTrace(); } txtTroll = new JFormattedTextField(formatter); I need Any hex character (0-9, a-z or A-Z) and the "H" should give me only (0-9, a-z or A-Z) but im getting it wrong. When i type text only capital letters are typed and it's slow to and when i click away from the txtTroll all letters vanish u can use another solution that i prefer write ur Document class and rewrite it's insertString method using regex

How to use JFormattedTextfield to accept names like strings?

由 南楼画角 提交于 2019-12-06 11:33:54
问题 What will be the FormatterFactory 's factor value in JFormattedTextField if I only want to accept letters and spaces. Cause I want it to accepts Names only. Like - John Doe . 回答1: I couldn't find an elegant way using a formatter. The non-elegant way is to create a MaskFormatter with the main issue that you will be limiting the number of characters allowed (although you can limit to an arbitrarily large number). MaskFormatter mask = new MaskFormatter("*************"); // Specifies the number

How to use JFormattedTextfield to accept names like strings?

由 ε祈祈猫儿з 提交于 2019-12-04 16:34:44
What will be the FormatterFactory 's factor value in JFormattedTextField if I only want to accept letters and spaces. Cause I want it to accepts Names only. Like - John Doe . I couldn't find an elegant way using a formatter. The non-elegant way is to create a MaskFormatter with the main issue that you will be limiting the number of characters allowed (although you can limit to an arbitrarily large number). MaskFormatter mask = new MaskFormatter("*************"); // Specifies the number of characters allowed. mask.setValidCharacters("qwertyuiopasdfghjklzxcvbnm" + " QWERTYUIOPASDFGHJKLZXCVBNM ")

How to get the same value as the user is seeing from a JFormattedTextField?

由 天大地大妈咪最大 提交于 2019-12-03 21:38:13
问题 I'm using a NumberFormatter and JFormattedTextField , but the .getValue() doesn't return the same value as the user is seeing. I think the input-string is parsed using NumberFormats parse-method, and I get the Numberformat from NumberFormat.getNumberInstance(); with the actual Locale. So I don't think I easily can extend it and write my own parse-method? In example , if the user types 1234.487 the getValue() will return: 1234.487 but the user will be displayed 1,234.49 Another example , using

Readonly JFormattedTextField

由 ℡╲_俬逩灬. 提交于 2019-12-02 22:10:08
问题 Supossing that a JFormattedTextField is enabled and contains a formatter, is there a way to make it readonly? With a JTextField , we just need to suply a custom Document and do all the control there, but with a JFormattedTextField I suppose that things are a little more complicated as we don't want to mess with its document filter. I really need this feature. So, is there a way to achieve this? UPDATE: Just my opinion, but it seems that the JFormattedTextField is so bad designed in this sense

Can you link values for two JFormattedTextFields?

由 你说的曾经没有我的故事 提交于 2019-12-02 08:53:35
I've got an interface with 2 JFormattedTextFields for which I need the values (not just the displayed text) to be identical. Ideally they should both be editable, with a change in one being mirrored in the other. I started by just sharing a single Document between the two, but quickly ran into the problem that this only links the displayed text, not the underlying value. (Silly me!) I haven't tried adding reciprocal PropertyChangeListeners for the "value" property because I would expect that to set up an infinite loop of modification. Am I missing something? Is there some way to do this? Or am
订阅 jformattedtextfield