property currentData

This property returns the current string data. This data is normally used for expressions.

// In this sample there could be an input gadget defined file a filter. For example:
// <input id="inputYear" s:flex="1" maxLength="4" filter="filterNumber('1910','2038')"/>
function filterNumber(min,max)
{
    var result = false;
    var label = shell.currentData;
    if (label)
    {
        if (label.length < 4)
        {
            result = true;
        }
        else
        {
            var num = parseInt(label);
            if (num >= min && num <= max)
            {
                result = true;
            }
        }
    }

    return result;
}