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How To Reset Combobox In Java

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mouseClicked() or another event handler depending on what you want to do. My purpose to add into this listener is that; "to execute some code when user click (select) an item from its dropbox". Looking at the source code for JComboBox#removeAllItems there is a different code path since the removeAllElements method is not part of the MutableComboBoxModel interface public void removeAllItems() { checkMutableComboBoxModel(); MutableComboBoxModel model Farming after the apocalypse: chickens or giant cockroaches? http://canondrivebh.com/how-to/jbed-unfortunately-java-has-stopped.html

java swing jcombobox share|improve this question edited Sep 3 '12 at 14:08 Dan 29.2k44665 asked Sep 3 '12 at 13:59 chathura 82241740 1 While I agree with the answers to java.lang.NullPointerException at abc.MyClass.jComboBoxActionPerformed(MyClass.java:211) at abc.MyClass.access$000(MyClass.java:16) at abc.MyClass$1.actionPerformed(MyClass.java:110) ... Why aren't there direct flights connecting Honolulu, Hawaii and London, UK? The DefaultComboBoxModel fires an event in that case for the first element.

How To Reset Combobox In Java

public void removeAllElements() { if ( objects.size() > 0 ) { int firstIndex = 0; int lastIndex = objects.size() - 1; objects.removeAllElements(); selectedObject = null; fireIntervalRemoved(this, firstIndex, lastIndex); ... What is the probability that they were born on different days? share|improve this answer answered Aug 22 '13 at 9:06 Aashray 2,073717 After adding the value Select what are you trying to do? –Aashray Aug 22 '13 at 9:33 I use 2 JComboBoxes in mij app and when you select an item from the first combobox the related items should then be shown in the second combobox.

It was not the remove all items method that was causing the problem. Why aren't there direct flights connecting Honolulu, Hawaii and London, UK? I used 'removeAllItems()' in 'ItemStateChanged' event but in runtime while changing items "java.lang.NullPointerException" error occurs.. Jcombobox Add Items I used Swing1.1, so why not try Swing1.1?

N(e(s(t))) a string 90 day visa waiver for the US want to re-enter shortly after for a few days Red balls and Rings 2002 research: speed of light slowing down? Jcombobox Removeallitems Nullpointerexception How to call "intellectual" jobs? Though it doesn't explain why OP gets a NullPointerException... ;) –brimborium Sep 3 '12 at 14:04 2 The code in the question would normally work. Thank you all.

Related 3NullPointerException at actionPerformed. How To Clear Combobox In Java Swings i've never tried before. Can 「持ち込んだ食品を飲食するのは禁止である。」be simplified for a notification board? if statement - short circuit evaluation vs readability What is the name of this brown, "flat hat", fungus?

Jcombobox Removeallitems Nullpointerexception

I want to keep Select value always on jComboBox. How do you grow in a skill when you're the company lead in that area? How To Reset Combobox In Java N(e(s(t))) a string A Short Easy Addictive Riddle Specific word to describe someone who is so good that isn't even considered in say a classification How to use color ramp with Jcombobox Remove All Items Note: I search on internet but not find exact solution what I wanted so asked.

Puzzle that's an image: Recruiter wants me to take a loss upon hire Why aren't sessions exclusive to an IP address? this contact form Thanks! –Maarten Meeusen Oct 29 '13 at 22:35 Ah ok, I allready solved it. The problem was casting Object s, as pointed out by @JB Nizet. How to create a backslash fraction? Remove Item From Jcombobox Java

Thanks –Yubaraj Aug 22 '13 at 9:40 No problem... :) –Aashray Aug 22 '13 at 9:42 add a comment| up vote 0 down vote JComboBox cb = new JComboBox(); Sample code is given private void jComboBox2ActionPerformed(java.awt.event.ActionEvent evt) { System.out.println("Combo Item Selected"); comboitem = jComboBox2.getSelectedItem(); if(null==comboitem) return ; combos = comboitem.toString(); System.out.println(combos); objcombo.SearchProject(this, combos); } share|improve this answer edited May 2 What does a midi-chlorian look like? have a peek here To start viewing messages, select the forum that you want to visit from the selection below.

Not sure why15913Why is it faster to process a sorted array than an unsorted array?2Exception in thread “AWT-EventQueue-0” java.lang.NoClassDefFoundError88Why is this not throwing a NullPointerException? How To Clear Jcombobox In Netbeans Puzzle that's an image: When is it okay to exceed the absolute maximum rating on a part? Name spelling on publications In car driving, why does wheel slipping cause loss of control? 90 day visa waiver for the US want to re-enter shortly after for a few days

So, How to make it only called once user Click (select) only AND not when removeAllItems() called?

Who is the highest-grossing debut director? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Only weird thing in that code is that it does not fire a DESELECTED event first, although you know the selection has changed if you listen for the intervalRemoved event ... How To Update Combobox In Java Application Lifecycle> Running a Business Sales / Marketing Collaboration / Beta Testing Work Issues Design and Architecture ASP.NET JavaScript C / C++ / MFC> ATL / WTL / STL Managed C++/CLI

In car driving, why does wheel slipping cause loss of control? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Execute the code in your itemStateChanged() only if the bool variable is false. Check This Out more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Browse other questions tagged java swing methods jcombobox comboboxmodel or ask your own question. Will they need replacement?