datatables plugin wont hold state on page 2 using server side datasource

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C#

ASP.NET

repeater

Im using the jquery datatables plugin, and its great, until I make a change using a repeater ItemCommand. It seems to only hold the data for the first page of the plugin.. ie. page 1 and not the 2, 3, 4.... * pages.. The wierd thing is the drop down values remain in the drop down, but the selected value of the drop down defaults to position 0 (both are generated and assigned via sql dataset)..

Here is my code..

<pre>    /// ************************************************************************
    /// <summary>
    /// Gets the data from the repeater responce.
    /// </summary>
    /// ************************************************************************
    protected void testRepeater_ItemCommand(object source, RepeaterCommandEventArgs e)
    {
        // Update category
        if (e.CommandName == "category")
        {
            var arguments = (string)e.CommandArgument;
            var arg = arguments.Split(new[] { ';' });

            Session["PersonId"] = arg[0];
            Session["CategoryId"] = arg[1];

            int personID = Converter.ToInteger(arg[0]);
            int categoryId = Converter.ToInteger(arg[1]);

            using (TrialProvider tp = new TrialProvider())
            {
                tp.UpdateCategory(CategoryId, PersonID); 
            }
        }    
    }


    /// ************************************************************************
    /// <summary>
    /// Populates drop-down with category details.
    /// </summary>
    /// ************************************************************************
    protected void categoryList_DataBinding(object sender, System.EventArgs e)
    {
        DropDownList categoryList = (DropDownList)(sender);

        using (TrialProvider tp = new TrialProvider())
        {
            DataSet ds = tp.GetAllTrialCategories();

            // Add the items to the list     
            foreach (DataRow dr in ds.Tables[0].Rows)
            {
                categoryList.Items.Add(new ListItem(Converter.ToString(dr["Category"]), Converter.ToString(dr["CategoryId"])));

                // Set the selected property        
                categoryList.SelectedValue = Eval("CategoryId").ToString();
            }            
        }        
    }

Here is my client side code..

<pre><asp:Repeater ID="testRepeater" runat="server">
                                        <HeaderTemplate>
                                            <table id="test-table" class="display">
                                                <thead>
                                                    <td>First Name</td>
                                                    <td>Surname</td>
                                                    <td>Date of Birth</td>
                                                    <td>State</td>
                                                    <td>Postcode</td>
                                                    <td>Email</td>
                                                    <td>Category</td>
                                                </thead>
                                        </HeaderTemplate>
                                        <ItemTemplate>
                                            <tr>
                                                <td><%# DataBinder.Eval(Container, "DataItem.FirstName") %></td>
                                                <td><%# DataBinder.Eval(Container, "DataItem.Surname") %></td>
                                                <td><%# DataBinder.Eval(Container, "DataItem.DOB", "{0:d/M/yyyy}") %></td>
                                                <td><%# DataBinder.Eval(Container, "DataItem.State") %></td>
                                                <td><%# DataBinder.Eval(Container, "DataItem.Postcode") %></td>
                                                <td><%# DataBinder.Eval(Container, "DataItem.Email") %></td>
                                                <td>
                                                    <asp:DropDownList ID="categoryList" 
                                                        CommandName="category"
                                                        CommandArgument='<%# Eval("PersonId") + ";" + Eval("CategoryId") %>'
                                                        runat="server"
                                                        AutoPostBack="true"
                                                        OnDataBinding="categoryList_DataBinding"></asp:DropDownList>
                                                </td>
                                            </tr>
                                        </ItemTemplate>
                                        <FooterTemplate>
                                            </table>
                                        </FooterTemplate>
                                    </asp:Repeater

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