Question

All, I am trying to use javascript to setValue a integer into a field based on the dates in a start and end field. I’m not even sure what the correct syntax for finding the day of the week with CRM javascript. Here is my code so far.

function netbdays_change() {

    var startday = Xrm.Page.getAttribute("new_quotestart").getValue();
    var endday = Xrm.Page.getAttribute("new_quoteend").getValue();

    cycletime = endday - startday;

    Xrm.Page.getAttribute("new_setcycletime").setValue(cycletime);

}

Answer 1

Try this:

function netbdays_change() {

    var startday = Xrm.Page.getAttribute("new_quotestart").getValue().getDay();
    var endday = Xrm.Page.getAttribute("new_quoteend").getValue().getDay();

    cycletime = endday - startday;

    Xrm.Page.getAttribute("new_setcycletime").setValue(cycletime);

}

getDay() returns a 0 based representation of the day of the week.
http://www.w3schools.com/jsref/jsref_getday.asp

If you want to calculate the number of days between 2 dates, try this:

function netbdays_change() {

    var startday = Xrm.Page.getAttribute("new_quotestart").getValue();
    var endday = Xrm.Page.getAttribute("new_quoteend").getValue();

    cycletime = Math.abs(endday - startday)

    Xrm.Page.getAttribute("new_setcycletime").setValue(cycletime / 86400000);

}