SQL Update On Click Event

My database isn't getting updated. You see any problem with this code?

 string strConnection = ConfigurationManager.ConnectionStrings["ShippingConnectionString"].ConnectionString;

SqlConnection myConnection = new SqlConnection(strConnection);String updateCmd = "UPDATE [response] SET [sitename]=@sitename, [sitephone]=@sitephone, [siteemail]=@siteemail, [siteaddress]=@siteaddress, [cra_name]=@cra_name WHERE [responseID]=@responseID";

SqlCommand myCommand = new SqlCommand(updateCmd, myConnection);myCommand.Parameters.Add(new SqlParameter("@sitename", SqlDbType.VarChar, 50));

myCommand.Parameters["@sitename"].Value = txtSiteName.Text;myCommand.Parameters.Add(new SqlParameter("@sitephone", SqlDbType.VarChar, 50));

myCommand.Parameters["@sitephone"].Value = txtPhone.Text;myCommand.Parameters.Add(new SqlParameter("@siteemail", SqlDbType.VarChar, 50));

myCommand.Parameters["@siteemail"].Value = txtEmail.Text;myCommand.Parameters.Add(new SqlParameter("@siteaddress", SqlDbType.VarChar, 1000));

myCommand.Parameters["@siteaddress"].Value = txtAddress.Text.ToString();myCommand.Parameters.Add(new SqlParameter("@cra_name", SqlDbType.VarChar, 50));

myCommand.Parameters["@cra_name"].Value = txtCRA.Text;myCommand.Parameters.Add(new SqlParameter("@responseID", SqlDbType.Int));

myCommand.Parameters["@responseID"].Value = Convert.ToInt32(hiddenID.Value);

try

{

myCommand.Connection.Open();

myCommand.ExecuteNonQuery();

}catch (SqlException test)

{

//Response.Redirect("~/error.aspx");

Response.Write(test.Message.ToString());

}

finally

{

myCommand.Connection.Close();

}