After pasting, data in not saving in database in fckeditor

See more:

ASP.NET4

Hi,
I am facing problem with FCKeditor is that, when i type some data then jquery call SaveData function and store data successfuly... but when i paste data from any word document/excel sheet/ any other document then jquery does not call the SaveData function and data is not saved in database..
my JQuery code is

$("#btnSave").click(function () {
      debugger;
      var datatosave = $.fck.content('fck1', '');
      $.ajax({
          type: 'POST',
          url: 'Default.aspx/SaveData',
          data: "{ 'dataToSave': ' " + datatosave + "'}",
          contentType: "application/json; charset=utf-8",
          dataType: "json",
          success: function () {
              alert("Data Saved successfuly");
              $("#fckDiv").slideUp("slow");
          }
      });
  });

my aspx.cs file code is

[WebMethod]
public static void SaveData(string dataToSave)
{
   SqlConnection con;
   string connectionstring = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
   using (con = new SqlConnection(connectionstring))
   {
         SqlCommand cmd = new SqlCommand();
         cmd.Connection = con;
         cmd.CommandText = "INSERT into DataToPdf (Data) values ('" + dataToSave + "')";
         try
         {
            con.Open();
            cmd.ExecuteNonQuery();
         }
         catch (Exception ex)
         { }
         finally
         {
              con.Close();
         }
    }
 }