Gridview Update Problem

[kralco626]

I have my gridview set up to a sql data source which is in turn linked to a stored procedure. I get the following error:

Procedure or function <stored procedure name> has too many arguments specified.

My sql datasource code is:

<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:DVC_OVRLDConnectionString %>" 
        SelectCommand="Select_Device_By_Owner" SelectCommandType="StoredProcedure" 
        UpdateCommand="update_device_information" UpdateCommandType="StoredProcedure">
        <SelectParameters>
            <asp:QueryStringParameter Name="userID" QueryStringField="name" Type="String" />
        </SelectParameters>
        <UpdateParameters>
            <asp:Parameter Name="dvc_nm" Type="String" />
            <asp:Parameter Name="data_valid_ind" Type="String" />
            <asp:Parameter Name="invld_data_reasn_id" Type="Decimal" />
            <asp:Parameter Name="work_actn_id" Type="Decimal" />
            <asp:Parameter Name="comnt_txt" Type="String" />
            <asp:Parameter Name="wrqst_need_ind" Type="String" />
            <asp:Parameter Name="wrqst_cd" Type="Decimal" />
            <asp:Parameter Name="rview_ind" Type="String" />
        </UpdateParameters>
    </asp:SqlDataSource>

my stored proc is:

@dvc_nm varchar(50),
	@data_valid_ind char(1),
	@invld_data_reasn_id numeric(9,0),
	@work_actn_id numeric(9,0),
	@comnt_txt varchar(1000),
	@wrqst_need_ind char(1),
	@wrqst_cd numeric(11,0),
	@rview_ind char(1)


AS
BEGIN
	SET NOCOUNT ON;

	Update 
		DVC
	set 
		data_valid_ind = @data_valid_ind,
		invld_data_reasn_id = @invld_data_reasn_id,
		work_actn_id = @work_actn_id,
		comnt_txt = @comnt_txt,
		wrqst_need_ind = @wrqst_need_ind,
		wrqst_cd = @wrqst_cd,
		rview_ind = @rview_ind
	where
		dvc_nm = @dvc_nm

I don't understand my parameters match up. I have have only 7 cols set to readonly = false; The 8th col that i am using in the update is the PK so it is left as readonly = true;

I don't understand why it thinks i'm passing tomany parameters

Thanks for any help!