取出MSCRM父窗口的欄位的值

//如果從父表單開啟，則可以取到父表單的值
if (
    (window.opener != null) &&
    (window.opener.parent != null) &&
    (window.opener.parent.document != null) &&
    (window.opener.parent.document.crmForm != null)) {

    //This is the parent form
    var parentForm = window.opener.parent.document.crmForm;

    
    var xx= parentForm.all.{FieldName}.DataValue ;

    
}