c# - Set Properties and create events for a user control -

i'm creating web user control in asp.net using c# in can select date calendar , display in textbox. when select date calender has displayed in textbox. need set own properties can select datetime patterns in cs codefile. example

usercontrol1.dd-mm-yyyy.  

this 1 example. want datetime patterns of "en-us". when use usercontrol in page want set of properties(datetime patterns) control. please me!!!

i tried coding no use... plz review , give me solution

public partial class datecontrol : system.web.ui.usercontrol {

    string dateformat;      public string dateformat     {       { return dateformat;}          set { dateformat = value; }      }       protected void page_load(object sender, eventargs e)     {          if(!page.ispostback)         {           pageload();         lnlbtnchangedate.visible = false;         ddldateformat.visible = false;         calendar.visible = false;         }         lblerror.visible = false;      }     public void pageload()     {           if (txtboxdate.text != "")         {             calendar.visible = false;         }         cultureinfo ci = new cultureinfo("fr-fr");         string[] format = ci.datetimeformat.getalldatetimepatterns();         foreach (string in format)         {             ddldateformat.items.add(i);         }     }         protected void lnkbtnpickdate_click(object sender, eventargs e)     {         calendar.visible = true;         lnlbtnchangedate.visible = true;         ddldateformat.visible = false;       }        public void calendar_selectionchanged1(object sender, eventargs e)     {         txtboxdate.text = calendar.selecteddate.toshortdatestring();      }      protected void ddldateformat_selectedindexchanged(object sender, eventargs e)     {          txtboxdate.text = calendar.selecteddate.tostring(ddldateformat.selectedvalue.tostring());        }       protected void lnlbtnchangedate_click(object sender, eventargs e)     {         calendar.visible = false;         if (txtboxdate.text == "")         {             lblerror.visible = true;         }         else         {             lblerror.visible = false;             lnlbtnchangedate.visible = true;             ddldateformat.visible = true;         }     }      protected void lnkbtnclear_click(object sender, eventargs e)     {         txtboxdate.text = "";         calendar.visible = false;         lnlbtnchangedate.visible = false;         ddldateformat.visible = false;         lblerror.visible = false;     } 

i said want set properties user control , create events that.... plz me

not sure right @ question not clear, anyway :

you create properties user controls, , assign enums them

 public enum my_usercontrol_dateformats     {         yyyymmdd = 1,         yyyymmddhh = 2,         yyyymmddhhmmss = 3     } 

and in setter code of properties handle logic assign date format (for example) according enum value (using switch/case)

it's 1 among many possibilities.