jQuery datepicker- 2 inputs/textboxes and restricting range

Question

I am using the jQuery Datepicker widget with two input boxes, one for the "From" date and the second with the "To" date. I am using the jQuery Datepicker functional demo as a basis for getting the two input boxes to work with each other, but I need to be able to add these additional restrictions:

Date range can be no earlier than 01 December 2008
"To" date can be no later than today
Once a "From" date is selected, the "To" date can only be within a range of 7 days after the "From" date
If a "To" date is selected first, then the "From" date can only be within the range of 7 days before the "To" date (with the limit of 01 December being the first selectable date)

I can't seem to get all of the above working together.

In summary, I would like to be able to select a range of up to 7 days between 01 December and today (I realise I am posting this on 1st December so will only get today for the moment).

My code so far

$(function () {

$('#txtStartDate, #txtEndDate').datepicker(
            {
            showOn: "both",
            beforeShow: customRange,
            dateFormat: "dd M yy",
            firstDay: 1, 
            changeFirstDay: false
            });
});

function customRange(input) 
{ 

return {
         minDate: (input.id == "txtStartDate" ? new Date(2008, 12 - 1, 1) : null),
         minDate: (input.id == "txtEndDate" ? $("#txtStartDate").datepicker("getDate") : null), 
         maxDate: (input.id == "txtStartDate" ? $("#txtEndDate").datepicker("getDate") : null)
       }; 
}

I'm missing the 7 day range restriction and also preventing a "To" date selection before 01 December 2008 or after today. Any help would be much appreciated, Thanks.

Russ_Cam_1831 · Answer

Many thanks for your help Ben, I have built upon your posts and have come up with this. It is now complete and works brilliantly!

Here's a Working Demo. Add /edit to the URL to see the code

Complete Code below-

$(function () 
{   
    $('#txtStartDate, #txtEndDate').datepicker({
        showOn: "both",
        beforeShow: customRange,
        dateFormat: "dd M yy",
        firstDay: 1, 
        changeFirstDay: false
    });

});

function customRange(input) { 
    var min = new Date(2008, 11 - 1, 1), //Set this to your absolute minimum date
        dateMin = min,
        dateMax = null,
        dayRange = 6; // Set this to the range of days you want to restrict to

    if (input.id === "txtStartDate") {
        if ($("#txtEndDate").datepicker("getDate") != null) {
            dateMax = $("#txtEndDate").datepicker("getDate");
            dateMin = $("#txtEndDate").datepicker("getDate");
            dateMin.setDate(dateMin.getDate() - dayRange);
            if (dateMin < min) {
                dateMin = min;
            }
        }
        else {
            dateMax = new Date; //Set this to your absolute maximum date
        }                      
    }
    else if (input.id === "txtEndDate") {
        dateMax = new Date; //Set this to your absolute maximum date
        if ($("#txtStartDate").datepicker("getDate") != null) {
            dateMin = $("#txtStartDate").datepicker("getDate");
            var rangeMax = new Date(dateMin.getFullYear(), dateMin.getMonth(),dateMin.getDate() + dayRange);

            if(rangeMax < dateMax) {
                dateMax = rangeMax; 
            }
        }
    }
    return {
        minDate: dateMin, 
        maxDate: dateMax
    };     
}

Ben_Koehler_11996 · Answer

Alright, how about this:

function customRange(input) 
{ 
    var min = new Date(2008, 12 - 1, 1);
    var dateMin = min;
    var dateMax = null;

    if (input.id == "txtStartDate" && $("#txtEndDate").datepicker("getDate") != null)
    {
        dateMax = $("#txtEndDate").datepicker("getDate");
        dateMin = $("#txtEndDate").datepicker("getDate");
        dateMin.setDate(dateMin.getDate() - 7);
        if (dateMin < min)
        {
            dateMin = min;
        }           
    }
    else if (input.id == "txtEndDate")
    {
        dateMax = new Date();
        if ($("#txtStartDate").datepicker("getDate") != null)
        {
            dateMin = $("#txtStartDate").datepicker("getDate");
            dateMax = $("#txtStartDate").datepicker("getDate");
            dateMax.setDate(dateMax.getDate() + 7); 
        }
    }
    return {
     minDate: dateMin, 
     maxDate: dateMax
   }; 

}

This is the best I could come up with that met all of your requirements (I think...)

user_24054 · Answer

Consider using rangeSelect to have one control instead of two.

To achieve what you are after, I suppose you need to add an onSelect listener and then call datepicker( "option", settings ) to change the settings.

Ben_Koehler_11996 · Answer

Your start date for txtStartDate isn't working because your second minDate is being set to null when it checks the input.id the second time. Also, maxDate should be checking for txtEndDate, not txtStartDate. Try this:

    function customRange(input) 
{ 
    var mDate = (input.id == "txtStartDate" ? new Date(2008, 12 - 1, 1) : $("#txtStartDate").datepicker("getDate"));
    return {
         minDate: mDate, 
         maxDate: (input.id == "txtEndDate" ? $("#txtStartDate").datepicker("getDate").getDate() + 5 : null)
       }; 
}

I don't know why the '+ 5' instead of '+ 7', but if I add 0, I get a selectable date range of the day I picked plus the next.

user_274211 · Answer

this is how i use it:

function customRange(input)
{
    var min = new Date();
    return {
        minDate: ((input.id == "txtStartDate") ? min : (input.id == "txtEndDate" ? $("#txtStartDate").datepicker("getDate") : null)),
        maxDate: (input.id == "txtStartDate" ? $("#txtEndDate").datepicker("getDate") : null)
    };
}

user_1242061 · Answer

This is how I have done it. I have taken the source from the Jquery UI website and modified it to add your constraints.

$(document).ready(function ()
{      
  var dates = $('#StartDate, #EndDate').datepicker({
        minDate: new Date(2008, 11, 1), 
        maxDate: "+0D",
        dateFormat: "dd M yy",
        changeMonth: true,
        changeYear: true,
        onSelect: function (selectedDate)
        {
            var option = this.id == "StartDate" ? "minDate" : "maxDate",
                instance = $(this).data("datepicker"),
                date = $.datepicker.parseDate(
                    instance.settings.dateFormat ||
                    $.datepicker._defaults.dateFormat,
                    selectedDate, instance.settings);
            var edate;
            var otherOption;
            var d;
            if (option == "minDate")
            {
                otherOption = "maxDate";
                d = date.getDate() + 7;
            }
            else if (option == "maxDate")
            {
                otherOption = "minDate";
                d = date.getDate() - 7;
            }

            var m = date.getMonth();
            var y = date.getFullYear();
            edate = new Date(y, m, d);

            dates.not(this).datepicker("option", option, date);
            dates.not(this).datepicker("option", otherOption, edate);
        }
    });
});

Initial Idea from: http://jqueryui.com/demos/datepicker/#date-range

Note: You would also need an option to reset/clear the dates (i.e. if a user chooses a 'From date', the 'To date' becomes limited. After choosing a 'From date' if the user now chooses a 'To date', the From date also gets limited. You need to have a clear option to allow the user to choose a different "From" date now.)

jQuery datepicker- 2 inputs/textboxes and restricting range

8 Answers