public function setProperty($name, $value)
    {
        if (is_null($value)) {
            unset($this->_properties[$name]);
        } else {
            $this->_properties[$name] = $value;
        }
        return $this;
    }
public function setProperty($name, $value)
    {
        if (is_null($value)) {
            unset($this->_properties[$name]);
        } else {
            $this->_properties[$name] = $value;
        }
        return $this;
    }
public function setProperty ( $ name , $ value ) { if ( is_null ( $ value ) ) { unset ( $ this -> _properties [ $ name ] ) ; } else { $ this -> _properties [ $ name ] = $ value ; } return $ this ; }
Set any property supported by ExtJS for this field

Alternatively use setFooBar() to set property fooBar
Set any property supported by ExtJS for this field