Jlist deselect

Chad ghostal

Does someone know how i could deselect all selected indexes in a jlist, everytime i try and add to the jlist while there is something selected theres a mad error.
id appreciate any help as this has been annoying me for hours now..

hussey

Originally posted by Chad ghostal
Does someone know how i could deselect all selected indexes in a jlist, everytime i try and add to the jlist while there is something selected theres a mad error.
id appreciate any help as this has been annoying me for hours now..

what is the mad error??

just give use the first few lines or so

Chad ghostal

this is the whole thing..jic..

applets name is PhonCoApplet

i add the phoneCo's name (textbox.gettext()) to a vector then put them into the list using
list.setlistdata

there is only ever an error when the list has an item selected prior to addition of a new object


Exception occurred during event dispatching:

java.lang.ArrayIndexOutOfBoundsException: 1 >= 0

at java.util.Vector.setElementAt(Vector.java:482)

at PhoneCoApplet.addToList(PhoneCoApplet.java:126)

at PhoneCoApplet.actionPerformed(PhoneCoApplet.java:105)

at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1450)

at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1504)

at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:378)

at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:250)

at javax.swing.plaf.basic.BasicRootPaneUI$DefaultAction.actionPerformed(BasicRootPaneUI.java:156)

at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1384)

at javax.swing.JComponent.processKeyBinding(JComponent.java:2078)

at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:252)

at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:205)

at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2145)

at javax.swing.JComponent.processKeyBindings(JComponent.java:2138)

at javax.swing.JComponent.processKeyEvent(JComponent.java:2045)

at java.awt.Component.processEvent(Component.java:3553)

at java.awt.Container.processEvent(Container.java:1164)

at java.awt.Component.dispatchEventImpl(Component.java:2593)

at java.awt.Container.dispatchEventImpl(Container.java:1213)

at java.awt.Component.dispatchEvent(Component.java:2497)

at java.awt.LightweightDispatcher.processKeyEvent(Container.java:2155)

at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2135)

at java.awt.Container.dispatchEventImpl(Container.java:1200)

at java.awt.Component.dispatchEvent(Component.java:2497)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:339)

at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:131)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:98)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:85)

hussey

is there any chance of putting link up to code??

and how do you define the array?? or vector??

what demensions??

java.util.Vector.setElementAt(Vector.java:482)

What are the Parameters???
obj - what the component is to be set to.
index - the specified index.

Hobbes

Without seeing the code I can only guess on what you said.

there is only ever an error when the list has an item selected prior to addition of a new object

I take it that you are selecting an item on the list, then clearing the list and trying to select the item again (which obviously is no longer there?). Reset the selection beforehand?

Chad ghostal

here is all the code relating to the list
i would put all the code up but i have nowhere to put it ..
this is all in the same class


init()
{
nameVector = new Vector(5);
list =new JList();
list.setSelectionMode = ListSelectionModel.SINGLE_INTERVAL_SELECTION);

}


public void actionPerformed(ActionEvent evt)
{
///rightPane is just another panel,saveInput a button on panel
if(evt.getSource() == rightPane.saveInput)
{


// getTelcoName just gets the name using getText()
addToList(new String(rightPane.getTelcoName()));

rightPane.resetAddNew();
}
}


public void addToList(Object o)
{
nameVector.addElement(o);

list.setListData(nameVector);
}



//this method just displays the info of the phoneco and takes off a graph if its there..
//i dont know what the getvalueIsAdjusting does but i dont think it has any effect
//when i removed it the same thing happened again

public class ListListener implements ListSelectionListener/*ListSelectionListener*/
{
public void valueChanged(ListSelectionEvent evt)
{
if(evt.getValueIsAdjusting())
return;

int index = list.getSelectedIndex();


if(splitPane.getRightComponent() == graphHolder)
{
removeGraph();
}

rightPane.displaydetails((Telco)objectVector.get(index));

}


}

Chad ghostal

this occurs when i have one or more things in the list,
if i select any of the items in the list and i cannot deselect all of them.

Then when i go to add a new phonecO the compiler gives out sh1t to me. .

hussey

you can upload the code to boards.ie

you can zip the code (.java and .html, not .class)
and use the attach file function down below

Talliesin

Use of the [code] vb Code element might help readability here.

Chad ghostal

heres the code...
im writing a mouse listener but that doesnt work so ignore it..

Chad ghostal

im not sure why but it works perfectly now..it deselects and everything.. thanks anyway..
now all i have to do if figure out why>.

Talliesin

Originally posted by Chad ghostal
im not sure why but it works perfectly now

Heisenbug.