Hi,
If I have a TextField whose model object is a Float, then if the user
enters an invalid value, say "aaa", the TextField will remember that
invalid value and display it when the page is re-rendered. How would
you go about getting the same behaviour for a custom FormComponent?
Here is my simple custom FormComponent.
public class MyPanel extends FormComponentPanel {
TextField field;
public MyPanel(String id) {
super(id);
field = new TextField("f", Float.class);
add(field);
}
@Override
protected void convertInput() {
setConvertedInput(field.getConvertedInput());
}
@Override
protected void onBeforeRender() {
field.setModel(getModel());
super.onBeforeRender();
}
}
<wicket:panel>
<input wicket:id="f" type="text" />
</wicket:panel>
And here is how I use it:
public class HomePage extends WebPage {
private static final long serialVersionUID = 1L;
public HomePage(final PageParameters parameters) {
CompoundPropertyModel cpModel = new CompoundPropertyModel(this);
Form form = new Form("form", cpModel);
form.add(new TextField("field1", Float.class));
form.add(new MyPanel("field2"));
add(form);
}
private Float field1 = 1.0f;
private Float field2 = 2.0f;
public Float getField1() {
return field1;
}
public void setField1(Float value) {
field1 = value;
}
public Float getField2() {
return field2;
}
public void setField2(Float value) {
field2 = value;
}
}
<html>
<head>
<title>Wicket Quickstart Archetype Homepage</title>
</head>
<body>
<form wicket:id="form">
<input wicket:id="field1" type="text" />
<div wicket:id="field2" />
<input type="submit" value="Submit" />
</form>
</body>
</html>
If I run this and enter "aaa" for field1 and "bbb" for field2 and
submit the form, then when the page is re-rendered field1 still has
"aaa", but field2 has been reset to "2". I'm pretty sure the problem
is to do with the call to setModel in MyPanel#onBeforeRender, but I
don't know how else to link the FormComponent model with the model of
the TextField inside the FormComponent.
Any help would be greatly appreciated. I'm using Wicket 1.3.5.
Cheers,
Ian.
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