Notes/Domino XPages Development Forum - Combo Box Validation using number.

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~Vera Nontumibergli

Feb 29, 2012, 12:06 PM

45 Posts

Resolved

Combo Box Validation using number.

Category: Other
Platform: All
Release: 8.5.3
Role: End user
Tags:
Replies: 2

I have a Combo Box with a selection of 'blank', ie a space in the label and nothing in the value plus numbers 1 - 10,- i.e. a simple scoring form, - which is bound to a number field in a back end document.

If I set the Combo Box to String, Validation (Required) does not work.

If I set a convertor on the Combo Box to Number then when the page is submitted I am returned the following runtime error after selecting a value.

java.lang.NumberFormatException: empty String
empty String.

Any help would be appreciated.

~Paul Chutoomanynds

Feb 29, 2012, 1:43 PM

56 Posts

Re: Combo Box Validation using number.

Hello Mark,

ok, with the number evaluator, it is logical that he crashes (shouldn't be, but that's another story)

I can't explain why the required evaluator shouldn't work..

If there is no solution, you could attach the validation to another field with a validate expression and check whether this field is empty or not.

Alternatively, you could write an InputValidation formula in the form of the document. In server-side validation, the results of an inputValidation will be passed through into the XPage and displayed in a messages block.

Hope this helps.

~Vera Nontumibergli

Feb 29, 2012, 3:44 PM

45 Posts

Re: Combo Box Validation using number.

Many thanks Matthius

Based on what you wrote I added a Validate Expression which works fine...

<xp:this.validators>

<xp:validateExpression

message="Please enter a score above">

<xp:this.expression><![CDATA[#{javascript:score =@TextToNumber(getComponent("comboBox7").getSubmittedValue());

if (score <1){return false;}

else

{return true;}}]]></xp:this.expression>

</xp:validateExpression>

</xp:this.validators>