autocomplete

     var globalname;
     var data = Array();
     var loadflag=false;
     $(document).ready(function () {
        data.length = 0;
       
         if ($("input[name*='txt_FirstName']").html() != null) {
          
                 globalname = 'txt_FirstName'
                  if(loadflag==false)
                 { 
                 loadflag=true;
                 getdata("");
                 }
                 BindHandle();
                  
         }
     });

     function BindHandle()
     {
    
                    if ($("input[name*='" + globalname + "']").html() != null) {
                                      
                     $("input[name*='" + globalname + "']").result(function (event, data, formatted) {

                        
                         var id = formatted.substring(formatted.indexOf('<span style="display:none">') + 27, formatted.indexOf('</span>'));
                     
                         $.ajax({
                             type: "POST",
                             contentType: "application/json",
                             url: "CHService.asmx/GetContactById",
                             dataType: 'json',
                             data: "{contactid:'" + id + "'}",
                             success: function (jsonStr) {
                                 var result = eval('(' + jsonStr + ')');

                                 if (result != null) {
                               
                                     if ($("input[name*='" + globalname + "']").html() != null) {
                                         $("input[name*='" + globalname + "']").val(result.FirstName);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txt_LastName') + "']").html() != null) {
                                         $("input[name*='" + globalname.replace('txt_FirstName', 'txt_LastName') + "']").val(result.LastName);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txt_Email') + "']").html() != null) {
                                         $("input[name*='" + globalname.replace('txt_FirstName', 'txt_Email') + "']").val(result.Email);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txt_Compnay') + "']").html() != null) {
                                         $("input[name*='" + globalname.replace('txt_FirstName', 'txt_Compnay') + "']").val(result.Company);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txt_PhoneNumber1') + "']").html() != null) {
                                         $("input[name*='" + globalname.replace('txt_FirstName', 'txt_PhoneNumber1') + "']").val(result.Phone1);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txt_PhoneNumber2') + "']").html() != null) {
                                         $("input[name*='" + globalname.replace('txt_FirstName', 'txt_PhoneNumber2') + "']").val(result.Phone2);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txt_Address1') + "']").html() != null) {
                                         $("input[name*='" + globalname.replace('txt_FirstName', 'txt_Address1') + "']").val(result.Address1);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txt_Address2') + "']").html() != null) {
                                         $("input[name*='" + globalname.replace('txt_FirstName', 'txt_Address2') + "']").val(result.Address2);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txt_City') + "']").html() != null) {
                                         $("input[name*='" + globalname.replace('txt_FirstName', 'txt_City') + "']").val(result.City);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txt_ZipCode') + "']").html() != null) {
                                         $("input[name*='" + globalname.replace('txt_FirstName', 'txt_ZipCode') + "']").val(result.PostalCode);
                                     }
                                     if ($("input[name*='" + globalname.replace('txt_FirstName', 'txtBDate') + "']").html() != null) {
                                         if (result.BirthDate != "") {
 
                                             $("input[name*='" + globalname.replace('txt_FirstName', 'txtBDate') + "']").val(result.BirthDate);
                                         }
                                         else {
                                             $("input[name*='" + globalname.replace('txt_FirstName', 'txtBDate') + "']").val("");
                                         }
                                     }

                                     if ($("select[name*='" + globalname.replace('txt_FirstName', 'ddl_State') + "']").html() != null) {

                                         if (result.State == "") {
                                             $("select[name*='" + globalname.replace('txt_FirstName', 'ddl_State') + "']")[0].options(0).selected = true;
                                         }
                                         else {
                                             $("select[name*='" + globalname.replace('txt_FirstName', 'ddl_State') + "']").val(result.State);
                                         }

                                     }
                                

                                 }

                             },
                             error: function (XMLHttpRequest, textStatus, errorThrown) {
                              
                             }
                         });

 

 

                     });
                 }
                
     }
     function getSource(obj) {

         globalname = obj.name;
        if(loadflag==false)
        {
         loadflag=true;
         getdata("");
         }

        

     }

   

     function getdata(id) {
  if(data.length == 0)
  {
    
         $.ajax({
             type: "POST",
             contentType: "application/json",
             url: "CHService.asmx/GetAutoCompleteContacts",
             dataType: 'json',
             data: "{firstname:'" + id + "'}",
             success: function (jsonStr) {

                 var result = eval('(' + jsonStr + ')');
  
                 $.each(result, function (i, item) {

                     var s = item.FirstName + "  " + item.LastName  + "  " + item.Address1 + "  " + item.Email + '<span style="display:none">' + item.ContactId + '</span>';
                     data.push(s);

                 }

                    )
                 $("input[name*='" + globalname + "']").autocomplete(data, { scroll: true, scrollHeight: 300, width: 400,cacheLength:1 });

 

             },
             error: function (XMLHttpRequest, textStatus, errorThrown) {
                loadflag=false;
            
             }
         });
   }
                
     }