Hi Jean-Noel,
here is a small code snippet which works in qooxdoo playground to give you a example solution for your problem:
// Document is the application root
var doc = this.getRoot();
var list = new qx.ui.form.List();
for (var i = 0; i < 15; i++) {
list.add(new qx.ui.form.ListItem("item " +i));
}
doc.add(list, {top : 20, left : 20});
//function to resize the list
var resizeList = function(e) {
//this refers to the list
qx.event.Timer.once(function() {
var listChilds = this.getChildren();
var lastChild = listChilds[listChilds.length - 1];
this.setHeight(this.getItemBottom(lastChild) + 4);
}, this, 20);
}
list.addListener("appear", resizeList); //resize when list appears
list.addListener("addItem", resizeList); //resize if item was added
list.addListener("removeItem", resizeList); //resize if item was removed
var addButton = new qx.ui.form.Button("append new item");
addButton.addListener("execute", function(e) {
list.add(new qx.ui.form.ListItem("new item"));
});
doc.add(addButton, {top : 20, left : 150});
var removeButton = new qx.ui.form.Button("remove first item");
removeButton.addListener("execute", function(e) {
list.remove(list.getChildren()[0]);
});
doc.add(removeButton, {top : 50, left : 150});
Regards,
Andreas
Von: Jean-Noël Rivasseau [mailto:
elvanor@...]
Gesendet: Montag, 22. Juni 2009 17:40
An: qooxdoo Development
Betreff: [qooxdoo-devel] Automatically resize a qx.ui.form.List according tothe number of contained items
Hi,
Pretty much everything is in the title: I have a qx.ui.form.List which is a acting as a selector. I put a number of entries in it, and I would like the box's height to be automatically computed. Currently it seems it chooses a default height. Manually calling setHeight() works, but is not convenient (I dont know the exact height).
Ideally I would like it to resize automatically when adding or removing items to this list.
I tried a lot of things but none worked, I am quite stuck right now.
Jean-Noel
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