i want code for below specified condition

Question

sir in my project i have 3 dropdownlistcondition is: 1) 3 dropdownlists are month,day and year.
2) if i select month in first dropdownlist in next dropdownlist current date and year must be displayed.
3) code must be asp.net c# web application only

for example you can check below link.
http://www.toyotabharat.com/inen/forms/testdrive.aspx
just select any state in that page check
Preferred Date:

Date (mm/dd/yyyy)

Vulpes · Answer

OK this should do it: public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender EventArgs e) { if(!IsPostBack) { DateTime dt = DateTime.Today; int month = dt.Month; int year = dt.Year; string[] months = new string[4]; months[0] = --Month--; int i = 1; while (i { months[i] = dt.ToString(MMMM); dt = dt.AddMonths(1); i++; } DropDownList1.DataSource = months; DropDownList1.DataBind(); DropDownList1.SelectedIndex = 0; DropDownList2.DataSource = new string[] { --Day-- }; DropDownList2.DataBind(); DropDownList3.DataSource = new string[] { --Year-- }; DropDownList3.DataBind(); } } protected void DropDownList1_SelectedIndexChanged(object sender EventArgs e) { if (DropDownList1.SelectedIndex == 0) { DropDownList2.DataSource = new string[] { --Day-- }; DropDownList2.DataBind(); DropDownList3.DataSource = new string[] { --Year-- }; DropDownList3.DataBind(); return; } int month = DropDownList1.SelectedIndex + DateTime.Today.Month - 1; int year = DateTime.Today.Year; if (month > 12) { month -= 12; year++; } int daysInMonth = DateTime.DaysInMonth(year month); if (month == DateTime.Today.Month) { int today = DateTime.Today.Day; DropDownList2.DataSource = Enumerable.Range(today daysInMonth - today + 1); } else { DropDownList2.DataSource = Enumerable.Range(1 daysInMonth); } DropDownList2.DataBind(); int[] years = { year }; DropDownList3.DataSource = years; DropDownList3.DataBind(); } }

Vulpes · Answer

That can be dealt with by changing the code to the following: protected void DropDownList1_SelectedIndexChanged(object sender EventArgs e) { if (DropDownList1.SelectedIndex == 0) { DropDownList2.DataSource = new string[] { --Day-- }; DropDownList2.DataBind(); DropDownList3.DataSource = new string[] { --Year-- }; DropDownList3.DataBind(); return; } int month = DropDownList1.SelectedIndex; int year = DateTime.Today.Year; int daysInMonth = DateTime.DaysInMonth(year month); if (month == DateTime.Today.Month) { int today = DateTime.Today.Day; DropDownList2.DataSource = Enumerable.Range(today daysInMonth - today + 1); } else { DropDownList2.DataSource = Enumerable.Range(1 daysInMonth); } DropDownList2.DataBind(); int[] years = { DateTime.Today.Year }; DropDownList3.DataSource = years; DropDownList3.DataBind(); } However does it follow from this that if the user selects a month before the current month the year should show 2014 rather than 2013?

Vulpes · Answer

Just to be clear do you mean that the first DropDownList should always show the current month and the next two months? So for example when we are in August it should show August September and October.

Vulpes · Answer

OK the following code should deal with your second point: public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender EventArgs e) { if(!IsPostBack) { DateTime dt = DateTime.Today; int month = dt.Month; int year = dt.Year; string[] months = new string[14 - month]; months[0] = --Month--; int i = 1; while (dt.Year == year) { months[i] = dt.ToString(MMMM); dt = dt.AddMonths(1); i++; } DropDownList1.DataSource = months; DropDownList1.DataBind(); DropDownList1.SelectedIndex = 0; DropDownList2.DataSource = new string[] { --Day-- }; DropDownList2.DataBind(); DropDownList3.DataSource = new string[] { --Year-- }; DropDownList3.DataBind(); } } protected void DropDownList1_SelectedIndexChanged(object sender EventArgs e) { if (DropDownList1.SelectedIndex == 0) { DropDownList2.DataSource = new string[] { --Day-- }; DropDownList2.DataBind(); DropDownList3.DataSource = new string[] { --Year-- }; DropDownList3.DataBind(); return; } int month = DropDownList1.SelectedIndex + DateTime.Today.Month - 1; int year = DateTime.Today.Year; int daysInMonth = DateTime.DaysInMonth(year month); if (month == DateTime.Today.Month) { int today = DateTime.Today.Day; DropDownList2.DataSource = Enumerable.Range(today daysInMonth - today + 1); } else { DropDownList2.DataSource = Enumerable.Range(1 daysInMonth); } DropDownList2.DataBind(); int[] years = { year }; DropDownList3.DataSource = years; DropDownList3.DataBind(); } }

Vulpes · Answer

Try this revised version: public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender EventArgs e) { if (!IsPostBack) { string[] months = { --Month-- January February March April May June July August September October November December }; DropDownList1.DataSource = months; DropDownList1.DataBind(); DropDownList1.SelectedIndex = 0; DropDownList2.DataSource = new string[] {--Day--}; DropDownList2.DataBind(); DropDownList3.DataSource = new string[] {--Year--}; DropDownList3.DataBind(); } } protected void DropDownList1_SelectedIndexChanged(object sender EventArgs e) { if (DropDownList1.SelectedIndex == 0) { DropDownList2.DataSource = new string[] { --Day-- }; DropDownList2.DataBind(); DropDownList3.DataSource = new string[] { --Year-- }; DropDownList3.DataBind(); return; } int month = DropDownList1.SelectedIndex; int year = DateTime.Today.Year; int daysInMonth = DateTime.DaysInMonth(year month); DropDownList2.DataSource = Enumerable.Range(1 daysInMonth); DropDownList2.DataBind(); if (month == DateTime.Today.Month) DropDownList2.SelectedIndex = DateTime.Today.Day; int[] years = { DateTime.Today.Year }; DropDownList3.DataSource = years; DropDownList3.DataBind(); } }

Vulpes · Answer

Try this code: public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender EventArgs e) { if (!IsPostBack) { string[] months = { January February March April May June July August September October November December }; DropDownList1.DataSource = months; DropDownList1.DataBind(); DropDownList1.SelectedIndex = 0; } } protected void DropDownList1_SelectedIndexChanged(object sender EventArgs e) { int month = DropDownList1.SelectedIndex + 1; int year = DateTime.Today.Year; int daysInMonth = DateTime.DaysInMonth(year month); DropDownList2.DataSource = Enumerable.Range(1 daysInMonth); DropDownList2.DataBind(); if (month == DateTime.Today.Month) DropDownList2.SelectedIndex = DateTime.Today.Day - 1; int[] years = { DateTime.Today.Year }; DropDownList3.DataSource = years; DropDownList3.DataBind(); } } AutoPostBack for the DropDownLists should of course be set to true.

Sanjeeb Lenka · Answer

check this link http://aspsnippets.com/Articles/Select-Day-Month-and-Year-Date-from-DropDownList-in-ASPNet.aspx

samanta · Answer

Thank you all

samanta · Answer

yes sir you are right i want the same code please send me the code

samanta · Answer

sorry sir there is small change in my requirement i want in firstdropdownlist it must show only 3 months like julyAugustOctober. as we crosses the october dropdownlist must show next three option november December(year will be 2013)and January with year 2014

samanta · Answer

no sir in first dropdownlist it must contain current month to end and when crosses december it must show all months with year 2014 i got really good answer from you.thank you very much.please send that code also.

Vulpes · Answer

OK I've changed the code so that if the user chooses a month before the current month then next year will be assumed: protected void DropDownList1_SelectedIndexChanged(object sender EventArgs e) { if (DropDownList1.SelectedIndex == 0) { DropDownList2.DataSource = new string[] { --Day-- }; DropDownList2.DataBind(); DropDownList3.DataSource = new string[] { --Year-- }; DropDownList3.DataBind(); return; } int month = DropDownList1.SelectedIndex; int year = DateTime.Today.Year; if (month int daysInMonth = DateTime.DaysInMonth(year month); if (month == DateTime.Today.Month) { int today = DateTime.Today.Day; DropDownList2.DataSource = Enumerable.Range(today daysInMonth - today + 1); } else { DropDownList2.DataSource = Enumerable.Range(1 daysInMonth); } DropDownList2.DataBind(); int[] years = { year }; DropDownList3.DataSource = years; DropDownList3.DataBind(); } On the second point do you mean that only months from the current month to December would be shown in the first DropDownList and so the year would always be the current year?

samanta · Answer

ya sir if system date is december 2013 and if we select january means than the year must be changed to 2014 one more thing if i don't want months before the current month than how to implement that

samanta · Answer

sir this code is working fine but when i select july its showing in dropdown date from 1 to 31 but i require from current date to month end

samanta · Answer

In this code i am getting one small problem when i run the code the firstdown shows the option Junuary but i want just ---Month-- below this month shoulb be display

samanta · Answer

i got solution sir

Sanjeeb Lenka · Answer

Are you got the solution or any problem in your code

Sharad Gupta · Answer

Source Code DataValueField=MonthNumber OnSelectedIndexChanged=ddlMonth_SelectedIndexChanged> Code Behind using System; using System.Globalization; using System.Linq; using System.Web.UI.WebControls; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender EventArgs e) { if (!IsPostBack) { //Populate DropDownLists ddlMonth.DataSource = Enumerable.Range(1 12).Select(a => new { MonthName = DateTimeFormatInfo.CurrentInfo.GetMonthName(a) MonthNumber = a }); ddlMonth.DataBind(); ddlYear.DataSource = Enumerable.Range(DateTime.Now.Year - 99 100).Reverse(); ddlYear.DataBind(); ddlday.DataSource = Enumerable.Range(1 DateTime.DaysInMonth(DateTime.Now.Year Convert.ToInt32(ddlMonth.SelectedValue))); ddlday.DataBind(); } } protected void ddlMonth_SelectedIndexChanged(object sender EventArgs e) { string currentMonth = DateTime.Now.Month.ToString(); int a = Int32.Parse(currentMonth); if(ddlMonth.SelectedValue.ToString()==currentMonth) { ddlday.Items.Clear(); ddlday.Items.Add(a.ToString()); } else { ddlday.DataSource = Enumerable.Range(1 DateTime.DaysInMonth(DateTime.Now.Year Convert.ToInt32(ddlMonth.SelectedValue))); ddlday.DataBind(); } } }

samanta · Answer

thank you so much

samanta · Answer

ok let me clear question first i have 3 dropdown list first dropdownlistname month. secand dropdownlistname day. third dropdownlistname year. if i select one option from month for example july than currrent day and year must be display if i select other than july than date must show day from 1 to end and year for example you can check below link. http://www.toyotabharat.com/inen/forms/testdrive.aspx j ust select any state in that page check Preferred Date: Date (mm/dd/yyyy) --Month-- July August September --Day-- --Year--

Sanjeeb Lenka · Answer

i am little bit confused about your requirement plz give clear requirement details. so we can able to solve your problem

samanta · Answer

Thanks for your reply but sir its code to just select from dropdownlist and submit but it does't setisfy my condition