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JavaScript DatePicker

, 24 Feb 2006
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The DatePicker is a control for use on the client side of ASP.NET applications.

Sample Image - datepicker.gif


Here is the sample code for a DatePicker in JavaScript. It can be used on HTML pages or as an ASP control - like I use it (see demo files).

Here is the code snippet of the JS code (part of the "render" function):

DatePicker.prototype.render = function()
     var oT1, oTR1, oTD1, oTH1;
     var oT2, oTR2, oTD2;
     this.oSpan = document.getElementById(;
     this.oSpan.appendChild(oT1 = document.createElement("table"));
     oT1.width = "200";
     oT1.border = 1;
     oTR1 = oT1.insertRow(oT1.rows.length);
     oTD1 = oTR1.insertCell(oTR1.cells.length);
     oTD1.colSpan = 7;
     oTD1.className = 'DatePickerHdr';
     oT2 = document.createElement("table");
     oT2.width = "100%";
     oT2.border = 0;
     // New row.
     oTR2 = oT2.insertRow(oT2.rows.length);
     // Previous month.
     oTD2 = oTR2.insertCell(oTR2.cells.length);
     oTD2.title = this.texts.prevMonth;
     oTD2.onclick = function() { this.oDatePicker.onPrev(); }
     oTD2.oDatePicker = this;
     oTD2.innerHTML = "<img src="images/datepicker/prev.gif">";
     oTD2.className = 'DatePickerHdrBtn';
     // Month combo.
     oTD2 = oTR2.insertCell(oTR2.cells.length);
     oTD2.title = this.texts.monthTitle;
     this.oMonth = document.createElement("select");
     this.oMonth.oDatePicker = this;
     this.oMonth.onchange = this.oMonth.onkeyup = 
          function() { this.oDatePicker.onMonth(); }
     for(var i = 0; i < 12; i++)
        this.oMonth.add(new Option(this.texts.months[i], i),undefined);
     this.oMonth.className = 'DatePickerHdrBtn';
     // Year combo.
     oTD2 = oTR2.insertCell(oTR2.cells.length);
     oTD2.title = this.texts.yearTitle;
     this.oYear = document.createElement("select");
     this.oYear.oDatePicker = this;
     this.oYear.onchange = this.oYear.onkeyup = 
          function() { this.oDatePicker.onYear(); }

I did use Russian language and Russian date format because the need of the picker was for a Russian site. But the language and format the picker uses can be changed very simply - just change the array values and the "fill" method:

DatePicker.prototype.fill = function()
     // first clear all
     // place the dates in the calendar
     var nRow = 0;
     var d = new Date(this.dt.getTime());
     var m = d.getMonth();
     for ( d.setDate(1); d.getMonth() == m; 
           d.setTime(d.getTime() + 86400000) ) {
        var nCol = d.getDay();
        if(nCol == 0) nCol = 7;
        nCol = nCol-1;
        this.aCells[nRow][nCol].innerHTML = d.getDate();
        if ( d.getDate() == this.dt.getDate() ) {
           this.aCells[nRow][nCol].className = 
        if ( nCol == 6 ) nRow++;
     // set the month combo
     this.oMonth.value = m;
     // set the year text
     this.oYear.value = this.dt.getFullYear();

That is all. I do really think the control is very useful.


This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

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About the Author

Nikita D. Sinelnikoff
Web Developer
Russian Federation Russian Federation
No Biography provided

Comments and Discussions

Generalnice +5 PinmemberRajesh Biswas20-Jul-12 2:46 
GeneralMy vote of 4 Pinmemberskmm29-Jul-10 9:47 
Very Simple And usable
GeneralMy vote of 3 PinmemberramanarayananAsp8-Jul-10 7:35 
GeneralTwo Coordinated Dates Pinmemberkrishna1122-Apr-08 20:55 
GeneralEncapsulate this Class inside a Custom Control is done PinmemberStephan Pilz22-Sep-06 4:54 
Questionabout date control Pinmemberdisak22-Sep-06 20:14 
AnswerRe: about date control PinmemberStephan Pilz24-Sep-06 21:15 
GeneralRe: about date control Pinmemberdisak24-Sep-06 22:32 
GeneralRe: about date control PinmemberStephan Pilz25-Sep-06 0:03 
GeneralRe: Encapsulate this Class inside a Custom Control is done Pinmembershrirampophali29-Oct-07 22:19 
GeneralRe: Encapsulate this Class inside a Custom Control is done Pinmembershrirampophali29-Oct-07 22:20 
Questionabout javascript Pinmemberdisak22-Sep-06 2:14 
GeneralSomebody is ripping you off PinmemberWorkDoggy29-Aug-06 4:16 
AnswerRe: Somebody is ripping you off PinmemberStephan Pilz7-Sep-06 4:59 
GeneralRe: Somebody is ripping you off PinmemberGuyon A. Roche7-Sep-06 11:41 
AnswerRe: Somebody is ripping you off PinmemberWorkDoggy8-Sep-06 2:10 
GeneralRe: Somebody is ripping you off PinmemberGuyon A. Roche8-Sep-06 11:53 
GeneralRe: Somebody is ripping you off PinmemberStephan Pilz8-Sep-06 4:47 
NewsThe coolest date-time picker is here Pinmemberkan_izh27-Feb-06 23:20 
GeneralRe: The coolest date-time picker Pinmemberdisak22-Sep-06 2:32 
GeneralProvide us please with the proper encoding PinmemberJailorSubRuberoid21-Feb-06 3:36 
AnswerRe: Provide us please with the proper encoding PinmemberNikita D. Sinelnikoff24-Feb-06 2:22 
GeneralA Bugfix and some little extensions in Code PinmemberStephan Pilz20-Dec-05 21:33 
GeneralRe: A Bugfix and some little extensions in Code PinmemberGuyon A. Roche8-Sep-06 12:16 
GeneralRe: A Bugfix and some little extensions in Code PinmemberStephan Pilz22-Sep-06 4:52 
QuestionBase class? Pinmemberiammudman31-Oct-05 8:26 
AnswerRe: Base class? PinmemberKamelJabber13-Mar-06 7:03 
Generalsome question! Pinmembergyokusei16-Oct-05 1:38 
AnswerRe: some question! PinmemberNikita D. Sinelnikoff17-Oct-05 4:18 
GeneralRe: some question! Pinmembergyokusei18-Oct-05 20:30 
GeneralRe: some question! Pinmemberdisak22-Sep-06 2:24 
GeneralHTML version PinmemberSteven A Bristol13-Oct-05 7:48 
GeneralRe: HTML version Pinmemberjsanjosem17-Oct-05 21:45 
GeneralRe: HTML version PinmemberSteven A Bristol18-Oct-05 3:50 

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