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Home » Eclipse Projects » Standard Widget Toolkit (SWT) » Content of List disappear after click Finish
Content of List disappear after click Finish [message #446190] Fri, 19 November 2004 20:23
hung is currently offline hungFriend
Messages: 117
Registered: July 2009
Senior Member
Hello,
I have an action class that invokes a wizard. This wizard has a
wizardpage. The wizardPage has a composite. This composite contains a
List. Whenever I click Finish on the Wizard, the content of the list
disappear. This only occurs if I use "setNeedsProgressMonitor(true)".
Is this a bug? It works fine if I take out this
"setNeedsProgressMonitor(true)". appreciate any help.


Here is my sample code :

public class ListComposite extends Composite
{
List selectionList;

public ListComposite(Composite parent, int style)
{
super(parent, style);

GridLayout layout = new GridLayout();
setLayout(new GridLayout());
setLayoutData(new GridData(GridData.FILL_BOTH));

selectionList = new List(this,SWT.BORDER | SWT.V_SCROLL |
SWT.SINGLE | SWT.H_SCROLL);
selectionList.setLayoutData(new GridData(GridData.FILL_VERTICAL));
fillData();

}

protected void fillData()
{
for ( int i = 0; i < 10; i++ )
{
selectionList.add("Test"+i);
}
}
}


public class ListWizardPage extends WizardPage
{
ListComposite listComposite;

public ListWizardPage(String pageName)
{
super(pageName);
}

public void createControl(Composite parent)
{
parent.setLayoutData(new GridData(GridData.FILL_BOTH));

listComposite = new ListComposite(parent,SWT.NONE);
setControl(listComposite);
}
}


public class ListWizard extends Wizard
{
ListWizardPage page;

public ListWizard()
{
super();
setNeedsProgressMonitor(true);
}

public void addPages()
{
super.addPages();

page = new ListWizardPage("Testing");
addPage(page);
}

public boolean performFinish()
{
page.setEnabled(false);

IRunnableWithProgress op = new IRunnableWithProgress()
{
public void run(IProgressMonitor monitor) throws
InvocationTargetException,InterruptedException
{
try
{
Thread.sleep(1500);
}
catch ( Exception e )
{
}
}
};

try
{
getContainer().run(false,true,op);
}
catch ( Exception e )
{
}
return true;
}
}



public class ListAction extends Action
{

public ListAction()
{
super();
}

public void run()
{
ListWizard wizard = new ListWizard();
WizardDialog dlg = new
WizardDialog(Display.getCurrent().getActiveShell(),wizard);
dlg.open();
}
}
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