FormPanel isValid, Multifield, and AdapterFields

[drain]

Hey All,

How can i turn off validation for adapter fields? I have a formpanel with other buttons and fill items inserted as adapter fields within a Multifield and this is causing NullPointer's when I call formPanel.isValid().

Any ideas or is this a bug?

Thanks,
Adrian

[gslender]

post some code - as it shouldn't - adapterfield overrides validateValue(String value)
{
return true;
}

[drain]

Sure here is some test code that causes the error.

thanks.

package com.mycompany.project.client;

import com.extjs.gxt.ui.client.event.ComponentEvent;
import com.extjs.gxt.ui.client.event.SelectionListener;
import com.extjs.gxt.ui.client.widget.MessageBox;
import com.extjs.gxt.ui.client.widget.button.Button;
import com.extjs.gxt.ui.client.widget.form.AdapterField;
import com.extjs.gxt.ui.client.widget.form.FormPanel;
import com.extjs.gxt.ui.client.widget.form.MultiField;
import com.extjs.gxt.ui.client.widget.form.TextField;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;

/**
 * Entry point classes define <code>onModuleLoad()</code>.
 */
public class GXTTester implements EntryPoint {

	public void onModuleLoad() {

		
		final FormPanel form = new FormPanel();

		MultiField multi = new MultiField();
		multi.setFieldLabel("Enter Text");
		multi.setSpacing(20);
	
		TextField text = new TextField();
		
		
		Button button = new Button("Click Me");
		button.addSelectionListener(new SelectionListener<ComponentEvent>(){
			@Override
			public void componentSelected(ComponentEvent ce)
			{
				if(form.isValid()) //NPE thrown here
				{
					MessageBox.alert("Alert", "valid", null);
				}else
				{
					MessageBox.alert("Alert", "not valid", null);
				}
			}
		});
		
		AdapterField buttonAdapter = new AdapterField(button);
		
		multi.add(text);
		multi.add(buttonAdapter);
		
		form.add(multi);
	
		RootPanel.get().add(form);
		
	}
}

and stacktrace

[ERROR] Uncaught exception escaped
java.lang.NullPointerException: null
	at com.extjs.gxt.ui.client.widget.form.Field.getRawValue(Field.java:324)
	at com.extjs.gxt.ui.client.widget.form.Field.isValid(Field.java:418)
	at com.extjs.gxt.ui.client.widget.form.MultiField.isValid(MultiField.java:136)
	at com.extjs.gxt.ui.client.widget.form.FormPanel.isValid(FormPanel.java:218)
	at com.mycompany.project.client.GXTTester$1.componentSelected(GXTTester.java:37)
	at com.extjs.gxt.ui.client.event.SelectionListener.handleEvent(SelectionListener.java:20)
	at com.extjs.gxt.ui.client.event.SelectionListener.handleEvent(SelectionListener.java:1)
	at com.extjs.gxt.ui.client.event.BaseObservable.fireEvent(BaseObservable.java:74)
	at com.extjs.gxt.ui.client.widget.Component.fireEvent(Component.java:423)
	at com.extjs.gxt.ui.client.widget.button.Button.onClick(Button.java:460)
	at com.extjs.gxt.ui.client.widget.button.Button.onComponentEvent(Button.java:234)
	at com.extjs.gxt.ui.client.widget.Component.onBrowserEvent(Component.java:662)
	at com.google.gwt.user.client.DOM.dispatchEventImpl(DOM.java:1308)
	at com.google.gwt.user.client.DOM.dispatchEventAndCatch(DOM.java:1287)
	at com.google.gwt.user.client.DOM.dispatchEvent(DOM.java:1255)
	at sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
	at com.google.gwt.dev.shell.ie.IDispatchImpl.callMethod(IDispatchImpl.java:126)
	at com.google.gwt.dev.shell.ie.IDispatchProxy.invoke(IDispatchProxy.java:155)
	at com.google.gwt.dev.shell.ie.IDispatchImpl.Invoke(IDispatchImpl.java:294)
	at com.google.gwt.dev.shell.ie.IDispatchImpl.method6(IDispatchImpl.java:194)
	at org.eclipse.swt.internal.ole.win32.COMObject.callback6(COMObject.java:117)
	at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
	at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1925)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2966)
	at com.google.gwt.dev.GWTShell.pumpEventLoop(GWTShell.java:720)
	at com.google.gwt.dev.GWTShell.run(GWTShell.java:593)
	at com.google.gwt.dev.GWTShell.main(GWTShell.java:357)

[gslender]

Seems a bug exists, when adding an adapterfield to a multifield.

But your approach is wrong.

If you need a button added, then you should add the button to the formpanel.getButtonBar().add(button);

[drain]

gslender: thanks for the reply. I am adding rows to the form dynamically and these buttons are used for adding/removing rows. These aren't the Submit/Back buttons. Should i submit this as a bug? I'm new to extjs, not sure how that is done.

thanks