Steven Haines schrieb:
Hi,
I'm creating a text field to host an integer, namely the year that a house was
built:
TextField<Integer> yearBuilt = new TextField<Integer>( "yearBuilt"
).setRequired( true );
And I'm using a CompoundPropertyModel that maps "yearBuilt" to an underlying bean property. My problem is that the default value for an integer is "0", so the text field pre-populates its value to "0", which is a rather silly year built date ;) What I would like to do is mark the field as required and validate against a number range, but display the text field without an initial value.
I know I can make it a TextField<String> and then validate on submission, but what has me intrigued is my exploration
into the DropDownChoice and the creation of renderers. For example, I have a dropdown list from which a user can choose a
value between 0 and 50,000 (increments of 1000), but I built a custom renderer that displays "No Coverage" for
"0" (insurance industry.) Can I build a custom renderer for the initial value of a text field so that if I see
"0" I return "", otherwise I return the actual value, e.g. 2001?
Thanks in advance,
Steve
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overwrite the getConverter on your textfield
@Override
public IConverter getConverter(Class<?> type)
{
NumberConverter fc = new NumberConverter()
{
@Override
public String convertToString(Object value, Locale locale)
{
//insert your conversion logic here
}
};
return fc;
}
best
--
Thierry Peng
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