Dropdownlist is selecting the first value in dropdownlist every time , while editing from grid view

See more:

ASP.NET

dropdownlis name ddlcountry -> select
USA
India
AUS

which the ddlcountry data is binding from database.

Source code

if (!IsPostBack)
{
   Filldata();
   loadpage();
}

public void Filldata()
{
   DataTable Dt = objdatahandler.Getallcountry();

   ddlCountry.DataSource = Dt;
   ddlCountry.DataTextField = "CountryName";
   ddlCountry.DataValueField = "CountryID";
   ddlCountry.DataBind();
   ddlCountry.Items.Insert(0, new ListItem("Select", "0"));
}
       
public void loadpage()
{
   int regaid = Convert.ToInt32(Request.QueryString["id"]);
   objcomreg.regid = regaid;
   DataTable Dt = objdatahandler.getcountbyid(objcomreg);
            
   if (Dt.Rows.Count > 0)
   {
      ddlCountry.SelectedValue = Dt.Rows[0]["Country"].ToString();
   }
}

when iam editing i am always getting the first value only in the dropdownlist , it is not showing the value