GridView UPDATE Problem

Hi Gutys

I am having problem with my UPDATE in GridView, it is  saying that I have too many argument, I don't
This happens when I click the UpdateCommand in GRIDVIEW



Procedure or function UpdateCountry has too many arguments specified.<asp:SqlDataSource ID="mySqlDataSource" Runat="server"
            SelectCommandType="StoredProcedure"  SelectCommand="ShowCountry"
            UpdateCommandType="StoredProcedure"  UpdateCommand="UpdateCountry"
            ConnectionString="<%$ ConnectionStrings:ConnString %>">
                <UpdateParameters>
                <asp:Parameter Type="String" Name="CountryName"></asp:Parameter>
                <asp:Parameter Type="String" Name="CountryID"></asp:Parameter>
            </UpdateParameters>
  </asp:SqlDataSource>

Just In case these are my Stored Procedures
**************************************************************************
CREATE PROCEDURE [dbo].[UpdateCountry]
@CountryName varchar(50),
@CountryID varchar(50)
AS
UPDATE   EkeanyanwuO.tCountry SET [CountryName] = @CountryName WHERE [CountryID] = @CountryID
GO
************************************************************************************
CREATE PROCEDURE [dbo].[ShowCountry] AS
SELECT     TOP 100 PERCENT EkeanyanwuO.tIMSREGION.ImsRegionName AS ImsRegionName, EkeanyanwuO.tCountry.CountryName AS CountryName,
                      EkeanyanwuO.tIMSREGION.ImsRegionID AS ImsRegionID, EkeanyanwuO.tCountry.CountryID AS CountryID
FROM         EkeanyanwuO.tCountry INNER JOIN
                      EkeanyanwuO.tIMSREGION ON EkeanyanwuO.tCountry.ImsRegionID = EkeanyanwuO.tIMSREGION.ImsRegionID
ORDER BY EkeanyanwuO.tCountry.CountryName
GO
************************************************************************************