Question

– I have a dropdown List on which there are some options from which user can select one.

– Options are 1 day, 1 week, 2 weeks, 1 month and 6 months

– Now when I select option 1 day, today’s date should be incremented by one and next date is shown.

– If I select 1 week, the date falling after one week should be shown.

– Now the problem is when I select an option it sometimes shows date greater than 30/31.

– I use below javacript function:

 function select_duration(ddlcupon) {

            var skillsSelect = document.getElementById("ddlcupon");
            var selectedText = skillsSelect.options[skillsSelect.selectedIndex].text;

            if (selectedText == "1 Day") {

                var currentTime = new Date();
                var month = currentTime.getMonth() + 1;
                var day = currentTime.getDate() + 1;
                var year = currentTime.getFullYear();
                var exdate = month + "/" + day + "/" + year;

                document.getElementById('<%=txtEventDate.ClientID%>').value = exdate.toString();


            }
            if (selectedText == "1 Week") {

                var currentTime = new Date();
                var month = currentTime.getMonth() + 1;
                var day = currentTime.getDate() + 7;
                var year = currentTime.getFullYear();
                var exdate = month + "/" + day + "/" + year;

                document.getElementById('<%=txtEventDate.ClientID%>').value = exdate.toString();
            }
            if (selectedText == "2 Weeks") {

                var currentTime = new Date();
                var month = currentTime.getMonth() + 1;
                var day = currentTime.getDate() + 14;
                var year = currentTime.getFullYear();
                var exdate = month + "/" + day + "/" + year;
                document.getElementById('<%=txtEventDate.ClientID%>').value = exdate.toString();
            }
            if (selectedText == "1 Month") {

                var currentTime = new Date();
                var month = currentTime.getMonth() + 2;
                var day = currentTime.getDate();
                var year = currentTime.getFullYear();
                var exdate = month + "/" + day + "/" + year;
                document.getElementById('<%=txtEventDate.ClientID%>').value = exdate.toString();
            }
            if (selectedText == "6 Months") {

                var currentTime = new Date();
                var month = currentTime.getMonth() + 7;
                var day = currentTime.getDate();
                var year = currentTime.getFullYear();
                var exdate = month + "/" + day + "/" + year;
                document.getElementById('<%=txtEventDate.ClientID%>').value = exdate.toString();
            }

– Can someone help me in getting a proper date?

Answer 1

try using this

var dt1 = new Date();    
var dt2 = new Date(dt1.getTime() + (86400000 * numberOfDay) );

if your date is incremented by one day try

var dt2 = new Date(dt1.getTime() + (86400000 * 1 ) ); //so on