Form Validations

[yathish.venkatesh]

So adding "^" at the beginning and "$" at the end would resolve my issue. Let me try and let you know.

Thanks for your help.

[yathish.venkatesh]

This worked fine. Thanks.

But i have a another issue. I have a select item and a text item. the default validation works fine but once i change select item required validation wont work.

Here is my code.

TextItem origin = new TextItem();
origin.setRequired(true);
RegExpValidator validator = new RegExpValidator();
validator.setExpression("^(([A-Z0-9]{3})+)(,([A-Z0-9]{3})+)*(,)*$"); //which validates airports but not the country.
origin.setValidators(validator);

SelectItem selectType = new SelectItem();
selectType .setValueMap("Airport", "Country");
selectType.addChangedHandler(new ChangedHandler() {
            public void onChanged(ChangedEvent changedEvent) {
                 origin.setRequired(true);
                 getField("origin").clearValue();
                 RegExpValidator validator = new RegExpValidator();
                 if((String) changedEvent.getValue().equalsignorecase("Airport)
                    validator.setExpression("^(([A-Z0-9]{3})+)(,([A-Z0-9]{3})+)*(,)*$"); 
                else 
                    validator.setExpression("^(([A-Z0-9]{2})+)(,([A-Z0-9]{2})+)*(,)*$"); 
}

Note that, regardless of the selection of Airport/country, it should validate a textItem for required field. If it is Default(Airport selected) error message displays. But if i change it to Country Required field validation fails.

Please let me know what is the issue/is it a known issue?

[Isomorphic]

This code isn't making much sense - a validator is created on the fly but not attached to anything? And it shows setting a field to required that is already required.

Please examine these problems - if you need more help, please re-explain the issue then show code that we can run to see the problem.

[yathish.venkatesh]

I have attached this validator at runtime to the TextItem, which i missed while typing.

But even though, i have set required field, it wont throws error. Here is my final code.

final TextItem origin = new TextItem();
origin.setRequired(true);
RegExpValidator validator = new RegExpValidator();
validator.setExpression("^(([A-Z0-9]{3})+)(,([A-Z0-9]{3})+)*(,)*$"); //which validates airports but not the country.
origin.setValidators(validator);

final SelectItem selectType = new SelectItem();
selectType .setValueMap("Airport", "Country");
selectType.addChangedHandler(new ChangedHandler() {
	public void onChanged(ChangedEvent changedEvent) {
		getField("origin").clearValue();
		RegExpValidator validator = new RegExpValidator();
		if((String) changedEvent.getValue().equalsignorecase("Airport)
			validator.setExpression("^(([A-Z0-9]{3})+)(,([A-Z0-9]{3})+)*(,)*$"); 
		else 
			validator.setExpression("^(([A-Z0-9]{2})+)(,([A-Z0-9]{2})+)*(,)*$");
		origin.setValidators(validator);
	}
}

[Isomorphic]

We don't recommend changing validators on the fly, it has a lot of ambiguity with respect to what is supposed to happen to existing errors and values that may have just become invalid as of new validators being applied. If your validator is conditional, add it as a custom validator.