public void Update() { string strsql = "update Skills set " + "SkillTypeId= " + SkillTypeId + ", " + "SkillName= '" + SkillName.Replace("'", "''") + "', " + "Status= '" + Status.Replace("'", "''") + "' " + " where ID =" + Id; SqlConnection ObjConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["MyJobPortal"].ConnectionString); ObjConnection.Open(); SqlCommand ObjCommand = new SqlCommand(strsql, ObjConnection); ObjCommand.ExecuteNonQuery(); ObjConnection.Dispose(); ObjCommand.Dispose(); }