Form Validation Support

Goals

Usage

WebFormElement

• validIfTrue: aBlock
  • example: field validIfTrue: [:value | value asString = Date today year]
• isValid

WebForm

• isValid

Error reporting

WebFormElement

• errorText: aString
• errorElement

Example (from included WebDemoApp)

ajaxValidationExample
    | e field |
    e := WebElement new.
    e addTextH4: 'Instant validation example'.
    e addText: 'Today''s year is: '.
    field := e addInputFieldAspect: #year for: self size: 4.
    field 
        onChangePost;
        validIfTrue: [:value | value asInteger = Date today year];
        errorText: 'Wrong!'.
    e add: field errorElement. "this element will show error text in red near input field, if year is wrong"
    ^e