How to refresh a tree ?
Use TreeStore.add(M parent, M item, boolean addChildren), TreeLoader.loadChildren(parent) or TreeLoader.load()
Why cannot I only add Fields to a FormPanel ?
FormPanel has a FormLayout which only renders Fields. If you want to use other widgets, use AdapterField
How to handle selection events on a Tree ?
Use TreeBinder.addSelectionChangedListener(..)
How to build a simple Tree with strings ?
Just manually add the items, using TreeItem.add(TreeItem), starting with tree.getRootItem().
I have different behaviours in Internet Explorer and Firefox, is it a Ext GWT bug ?
First, check that you have the good doctype declaration in your HTML main file : <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
How do I explicitly listen for mouse clicks on a widget?
Code:
widget.el().addEventsSunk(Event.ONCLICK);
widget.addListener(Events.OnClick, new Listener<DomEvent>() {
public void handleEvent(DomEvent be) {
System.out.println("Clicked!");
}
});
In some cases, you can add a selection listener to a widget instead of listening for mouse clicks.
How can I stop an event from continuing (ie beforeXXXX event)?
Code:
event.doit=false;
How do I stop a window from closing and ask "Are you sure"?
Use the event.doit=false in a window listener and then add/remove that listener depending on the answer.
Can I use GWT widgets in GXT ?
Yes
I've add widgets to a panel, but they don't show up - why?
Call layout() on the panel.
How to create custom components ? You can extend Component, BoxComponent for a sized component, Container for a "layouted" component when you don't want to expose the layout and LayoutContainer for a "layouted" component when you want to expose the layout.
how can I stop an event from continuing (ie beforeXXXX event)? event.doit=false;
how do I stop a window from closing and ask "Are you sure"? use the event.doit=false in a window listener and then add/remove that listener depending on the answer to are you sure?
can I use GWT widgets in GXT? yes you can
I've added widgets to a panel, but they don't show up - why? Call layout() on the panel.
No, you misunderstood my question then. I interpreted the FAQ question addressing the issue of having application that is primarily composed of GXT widgets and then using a GWT widget. For example, let's say you want to add a GWT Tree to a GXT ContentPanel. That's how I understood the FAQ question.
My question was addressing the issue of having an application that is primarily composed of GWT widgets and then using a GXT widget. For example, let's sayou want to add a GXT Grid to a GWT DecoratorPanel.
Frequently Asked Questions (FAQ)
Originally Posted by jpnet
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