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Q1. I added behavior (for example a SimpleAttributeModifier
) to the ListView but I do not see its results in the output. Why?
Q2. I called ListView#setRenderBodyOnly(falsetrue)
but the enclosing tags are still generated. How come?
Q3. My validation messages are cleared. What did I do?
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List list = Arrays.asList(new String[] { "a", "b", "c" });
ListView listview = new ListView("listview", list) {
protected void populateItem(ListItem item) {
item.add(new Label("label", item.getModel()));
}
};
add(listview);
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Markup:
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<span wicket:id="listview"> this label is: <span wicket:id="label">label</span><br/> </span> |
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Using form components in a repeater
Note |
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Due to the dynamic nature of such repeaters as ListView, RefreshingView, and DataView you may want to use a less dynamic repeater such as RepeatingView to build your form. However, if you do need a really dynamic form where rows come and go on the fly then see below... |
You can put anything in the repeater, including FormComponents. You can bind values to the form components through IModels just as if they were in a regular form.
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The variable userList
is initialized as follows:
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List userList = Arrays.asList(
new User[] {
new User("FirstA", "LastA"),
new User("FirstB", "LastB"),
new User("FirstC", "LastC")
});
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Code Block |
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class User { String _first, _last; public User(String _first, String _last) { this._first = _first; this._last = _last; } public String getFirstname() { return _first; } public String getLastname() { return _last; } } |
Accessing the cell/row index:
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protected void populateItem(ListItem item) {
// cell index
item.getIndex();
// row index
((Item)item.getParent().getParent()).getIndex();
}
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Optimizing the example with PropertyListView
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