Javascript-如何启用/禁用IE9中的文本输入

Question

The following script worked in IE8 but not in IE9:

function toggleSelect(fieldName)
{
    var idx = fieldName.lastIndexOf("_");
    var sub = fieldName.substring(19,idx);
    if (document.findForm["cb_Row_PageAutoDelete_" + sub].checked) {
          document.findForm["SHIP_QTY_" + sub].disabled=false ;
    } else {
        document.findForm["SHIP_QTY_" + sub].disabled=true ;
    }
    return true;
}

I can display the value of the SHIP_QTY field so I know it's on the page but the disable function does not work.

Thanks for your help.

Answer 1

If findForm is the name of the form, you want window.findForm rather than document.findForm . You can also just use the result of the other field's checked property directly rather than an if/else . So your code changes to:

function toggleSelect(fieldName)
{
    var idx = fieldName.lastIndexOf("_");
    var sub = fieldName.substring(19,idx);
    window.findForm["SHIP_QTY_" + sub].disabled = window.findForm["cb_Row_PageAutoDelete_" + sub].checked;
    return true;
}