I have a problem that i created a vf page and controller also but the problem is i cannot save the picklist field Agency_tier __c into fiel new protest object ...i dont know why...this is a picklist field (<apex:inputField value="{!File_New_Protest__c.Agency_Tier1__c}"/>) but am unable to save this field into an object ...when i click on save remaining all the fields are saving but this picklist field value is not saving


My vf page:

<apex:page standardController="File_New_Protest__c" Extensions="Filenewexten">
<apex:sectionHeader title="Protest Info Form" />

<apex:form id="fid">
<apex:pageMessages ></apex:pageMessages>

<apex:pageBlock >
<apex:pageBlockSection title="Protester " columns="3">
<table>
<tr>
<td>
Company Name: 
<apex:inputText value="{!CompanyName}" />
</td>
</tr>
<tr>
<td>
<apex:selectRadio value="{!File_New_Protest__c.Size_Status__c}">
<apex:selectoptions value="{!typess}"></apex:selectoptions>
</apex:selectRadio> 
</td>
</tr>
</table>
</apex:pageBlockSection>
<apex:pageBlockSection title="Company Address" columns="2">
<table>
<div style="padding-top: 15px;padding-bottom: 15px;padding-left: 70px;">                                 
                                    <input type="checkbox" name="sameasadress" id="sameasaddressid"><label>&nbsp;Same as Protester Representative address below</label>
                                </input>
                             </div>
<tr>
<td>
Street Name:
<apex:inputText value="{!StreetName}" id="cstreet"/>
</td>
</tr>
<tr>
<td>
City:
<apex:inputText value="{!City}"/>
</td>
</tr>
<tr>
<td>
State:
<apex:inputText value="{!State}" />
</td>
</tr>
<tr>
<td>
Country:
<apex:inputText value="{!Country}" />
</td>
</tr>
<tr>
<td>
Zip Code:
<apex:inputText value="{!ZipCode}" />
</td>
</tr>
</table>
</apex:pageBlockSection>

</apex:pageBlock>
<!--<apex:pageblock >

<apex:pageBlockTable value="{!DueFromEntityDetials}" var="Ent" style="font-size:1.1em;" id="TheBlock">
<apex:pageBlockSection columns="2">
<table>
<tr>
<td>
<apex:outputTExt></apex:outputTExt> value="{!Ent.First_Name__c}"/>
</td>
</tr>
<tr>
<td>
<apex:outputField value="{!Ent.Last_Name__c}"/>
</td>
</tr>
</table>
</apex:pageBlockSection>
</apex:pageblocktable>
</apex:pageblock>-->
<apex:pageBlock >
<apex:pageBlockSection title="Protester Representative " columns="2">
<table>
<tr>
<td>
First Name:
<apex:inputText value="{!FirstName}"/>
</td>
</tr>
<tr>
<td>
Last Name:
<apex:inputText value="{!LastName}"/>
</td>
</tr>
<tr>
<td>
Email Address:
<apex:inputText value="{!Email}" />
</td>
</tr>
<tr>
<td>
Phone Number:
<apex:inputText value="{!PhoneNumber}" />
</td>
</tr>
<tr>
<td>
Fax Number:
<apex:inputText value="{!FaxNumber}" />
</td>
</tr>
<tr>
<td>
Street Address:
<apex:inputText value="{!StreetAddresses}"  id="pstreet"/>
</td>
</tr> 
<tr>
<td>
City:
<apex:inputText value="{!Cities}" />
</td>
</tr>
<tr>
<td>
State:
<apex:inputText value="{!States}" />
</td>
</tr>  
<tr>
<td>
Country:
<apex:inputText value="{!Countrys}" />
</td>
</tr>  
<tr>
<td>
Zipcode:
<apex:inputText value="{!ZipCode_rep}" />
</td>
</tr>  
<tr>
<td>
Solicitation Number:
<apex:inputText value="{!Solocitation}" />
</td>
</tr>
<tr>
<td>
<apex:inputField value="{!File_New_Protest__c.Agency_Tier1__c}"/>
</td>
</tr>
<tr>
<td>
<apex:inputField value="{!File_New_Protest__c.Agency_Tier2__c}" />
</td>
</tr>
<tr>
<td>
<apex:inputField value="{!File_New_Protest__c.Comments__c}"/> 
</td>
</tr> 
<tr>
<td>  
</td>
</tr> 
</table> 
 </apex:pageBlockSection>
 <apex:pageBlockSection title="Protester Representative " columns="2">
 <table>
 <tr>
<td>
Attachment: 
<apex:inputFile accept="doc, txt, pdf" filename="{!fileName}" contentType="{!contentType}" filesize="1000" size="50" value="{!DFAttachment}"/>
</td>
</tr>
  <tr>
  <td>
  Do you want to Upload Associated Documents
  <apex:actionRegion >
  <apex:actionSupport event="onchange" />
    <apex:selectRadio value="{!File_New_Protest__c.Do_U_Want_To_Upload_Associated_Documents__c}">
    <apex:selectoptions value="{!types}"></apex:selectoptions>
    </apex:selectRadio>
    </apex:actionRegion>
    </td>
    </tr>
    <tr>
    <td>Upload Associated Documents
    
    <apex:inputFile accept="doc, txt, pdf" filename="{!fileName}" contentType="{!contentType}" filesize="10000" size="50" value="{!DFAttachment}" id="DocID"/>            
    </td>

    <td>
    </td>
    </tr>

<tr>
<td>
<!--<apex:param name="aid" value="" />-->
<apex:commandButton value="Save" action="{!SaveDueFrom}"/>
</td>
</tr>
<tr colspan="2"> 
<td colspan="2">
<!--<apex:param name="aid" value="" />-->
<apex:commandButton value="Submit" action="{!searchAndfind}"/>
</td>
</tr>

</table>
 </apex:pageBlockSection>
 </apex:pageBlock>
 <script type="text/javascript">
 $('#sameasaddressid').click(function(event) { 
                        
                        
                         
                       if(this.checked==true)
                        {
                            
                            $('#ccountry').val($('#pcountry').val());
                            $('#cstate').val($('#pstate').val());
                            $('#ccity').val($('#pcity').val());
                            $('#czipcode').val($('#pzipcode').val());
                            $('#cstreet').val($('#pstreet').val());
                        
                        }else
                            {
                            
                                $('#ccountry').val("");
                                $('#cstate').val("");
                                $('#ccity').val("");
                                $('#czipcode').val("");
                                $('#cstreet').val("");
                            }
                         
                         
                     });
 </script> 
</apex:form>
</apex:page>


My controller:

public with sharing class Filenewexten {

public List<User_Profile__c> up { set; get; }

    public Filenewexten(ApexPages.StandardController controller) {
    
     up = [SELECT First_Name__c,Last_Name__c,Email__c,Phone_Number__c,Fax_Number__c,Street_Name__c,City_del__c,State__c,Country_del__c,Zip_Code__c FROM User_Profile__c];
     FirstName = up[0].First_Name__c;
     LastName  = up[0].Last_Name__c;
     Email     = up[0].Email__c;
     PhoneNumber = up[0].Phone_Number__c;
     FaxNumber = up[0].Fax_Number__c;
     StreetAddresses = up[0].Street_Name__c;
     Cities = up[0].City_del__c;
     States = up[0].State__c;
     Countrys = up[0].Country_del__c;
     ZipCode_rep = up[0].Zip_Code__c;
     

    }
    
    public string  CompanyName{get;set;}
      public string  StreetName{get;set;}
        public string  City{get;set;}
          public string  State{get;set;}
            public string  Country{get;set;}
              public string  ZipCode{get;set;}
              public string  FirstName{get;set;}
              public string  LastName{get;set;}
              public string  Email{get;set;}
              public string  PhoneNumber{get;set;}
              public string  FaxNumber{get;set;}
              public string  StreetAddresses{get;set;}
              public string  Cities{get;set;}
              public string States{get;set;}
              public string  Solocitation{get;set;}
              public string  Countrys{get;set;}
              public string  ZipCode_rep{get;set;}
              


              
               // public string  CompanyName{get;set;}
               
               public String fileName {get; set;} 
                public String contentType {get; set;} 
                public Blob DFAttachment{get; set;}  
                public list <User_Profile__c> objEntityDetailss=new list<User_Profile__c>();
                 
                 
                          public List<SelectOption> getAgencyInfo(){
              List<SelectOption> options = new List<SelectOption>();
        
               Schema.DescribeFieldResult fieldResult =
                 File_New_Protest__c.Agency_Tier1__c.getDescribe();
               List<Schema.PicklistEntry> ple = fieldResult.getPicklistValues();
        
                   for( Schema.PicklistEntry f : ple)
                   {
                      options.add(new SelectOption(f.getLabel(), f.getValue()));
               }       
   return options;
}
                 
                 
                 
                 public List<SelectOption> getTypes(){
            Schema.sObjectType sobject_type = File_New_Protest__c.getSObjectType();

            Schema.DescribeSObjectResult sobject_describe = sobject_type.getDescribe();

            Map<String, Schema.SObjectField> field_map = sobject_describe.fields.getMap();
          
            List<Schema.PicklistEntry> pick_list_values = field_map.get('Do_U_Want_To_Upload_Associated_Documents__c').getDescribe().getPickListValues();

            List<selectOption> options = new List<selectOption>();

           for (Schema.PicklistEntry a : pick_list_values) {
                      options.add(new selectOption(a.getLabel(), a.getValue()));
          }
      return options;

}
                
        public List<SelectOption> getTypess(){
            Schema.sObjectType sobject_type = File_New_Protest__c.getSObjectType();

            Schema.DescribeSObjectResult sobject_describe = sobject_type.getDescribe();

            Map<String, Schema.SObjectField> field_map = sobject_describe.fields.getMap();
          
            List<Schema.PicklistEntry> pick_list_values = field_map.get('Size_Status__c').getDescribe().getPickListValues();

            List<selectOption> options = new List<selectOption>();

           for (Schema.PicklistEntry a : pick_list_values) {
                      options.add(new selectOption(a.getLabel(), a.getValue()));
          }
      return options;

}
public List<User_Profile__c> getDueFromEntityDetials()
    {             
        objEntityDetailss=[SELECT Id,First_Name__c,Last_Name__c FROM User_Profile__c];
        return objEntityDetailss;

    }
               
               
      public Void SaveDueFrom(){
      
      
      File_New_Protest__c Insertfile=New File_New_Protest__c();
      Insertfile.Street_Name__c=StreetName;
      Insertfile.City__c=City;
      Insertfile.State__c=State;
      Insertfile.Country__c=Country;
      Insertfile.Zip_Code__c=ZipCode;
      Insertfile.Company_Name__c=CompanyName;
                 if(DFAttachment!=null)
                                               {
                                               Insertfile.IsAttached__c=1;
                                              }
                                              else{
                                              Insertfile.IsAttached__c=0;
                                              }
                                              
                                              
                                             
//INSERT insertBal; 
        insert(Insertfile); 
                                             
    
{

if(DFAttachment!=null){  
      Attachment attach=new Attachment();  
      attach.Body=DFAttachment;  
      attach.Name=filename;  
      attach.ContentType=contentType;  
      attach.ParentID=Insertfile.id;  
   
          insert(attach);
          attach.clear();  
          Insertfile.clear();
          DFAttachment=null;
    
      }  
  } 
  apexpages.Message msg = new Apexpages.Message(ApexPages.Severity.Info,'Saved Successfully');  
   
  } 
  public pageReference searchAndfind() {
        pageReference pg = new pageReference('https://c.ap1.visual.force.com/apex/Activeprotests');
        pg.setRedirect(true);
        return pg;
    }       
  

  }


Please help me in saving this picklist field into file new protest object...i am calling this from standard controller only thanks.....