Question - Inserting With Formview Control

Using formview control, I'm trying to insert a record. In the process of inserting, I want to save the categoryid from a shared class. The code runs fine but categoryid gets saved as null...Any pointers?? [When I display, it shows the value]

thanks

 

protected void savebutton_click(object sender, EventArgs e)    {        //this statement runs fine under debug...but values do not get saved???        SqlDataSource1.InsertParameters.Add("@category", SharedValues.category.ToString());        SqlDataSource1.Insert();    }   

 

<asp:FormView ID="FormView1" runat="server" DataSourceID="SqlDataSource1" DataKeyNames="itemid" DefaultMode="edit" OnDataBound="FormView1_DataBound">    <EditItemTemplate>               Title:        <asp:TextBox ID="titleTextBox" runat="server" Text='<%# Bind("title") %>'>        </asp:TextBox><br/>        Description:        <asp:TextBox ID="descriptionTextBox" runat="server" Text='<%# Bind("description") %>' Rows="10" TextMode="MultiLine" Width="500px" Height="166px">        </asp:TextBox><br/>                      <asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True" CommandName="Update"            Text="Update">        </asp:LinkButton>        <asp:LinkButton ID="UpdateCancelButton" runat="server" CausesValidation="False" CommandName="Cancel"            Text="Cancel">        </asp:LinkButton>            </EditItemTemplate>    <InsertItemTemplate>        Title:        <asp:TextBox ID="titleTextBox" runat="server" Text='<%# Bind("title") %>'>        </asp:TextBox><br/>        Description:        <asp:TextBox ID="descriptionTextBox" runat="server" Text='<%# Bind("description") %>' Rows="10" TextMode="MultiLine" Width="500px" Height="166px">        </asp:TextBox><br/>            <asp:label ID="categoryLbl" runat="server" Text='<%# SharedValues.category %>'></asp:label>        <br/>               <div class="actionbuttons">                        <Club:RolloverButton ID="GreenRolloverButton3" CommandName="Insert" Text="Save"                            runat="server" OnClick="savebutton_click" />                        <Club:RolloverLink ID="GreenRolloverLink2" Text="Cancel" runat="server" NavigateURL="Classifieds.aspx" />                    </div>    </InsertItemTemplate>   </asp:FormView><asp:SqlDataSource ID="SqlDataSource1"  runat="server" ConnectionString="<%$ ConnectionStrings:ClubSiteDB %>"     InsertCommand="insert into tads (title,[description], categoryid) values (@title,@description, @category)"     SelectCommand="Select title, [description], categoryid from tads where itemid=@itemid"     UpdateCommand="update tads set title = @title, [description] = @description where itemid = @itemid" >    <SelectParameters>        <asp:QueryStringParameter Name="itemid" QueryStringField="itemid" Type="Int32" />    </SelectParameters>    <UpdateParameters>        <asp:Parameter Name="title" Type="String" />        <asp:Parameter Name="description" Type="String" />    </UpdateParameters>    <InsertParameters>      <asp:Parameter Name="title" Type="String" />        <asp:Parameter Name="description" Type="String" />        <asp:Parameter Name="category" Type="Int32" />    </InsertParameters></asp:SqlDataSource>