zaccret
22 Jul 2008, 3:44 AM
Darell, I think it would be nice to add a FAQ page in the Help Center (http://extjs.com/helpcenter/index.jsp).
Here is some questions I often see in the forums :
Where can I find any documentation?
On the download page there is this link -> http://extjs.com/helpcenter/index.jsp
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?
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)?
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.
Please add your suggestions ;-)
Here is some questions I often see in the forums :
Where can I find any documentation?
On the download page there is this link -> http://extjs.com/helpcenter/index.jsp
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?
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)?
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.
Please add your suggestions ;-)