i have this gridview, i want their checkbox checked if their posi no is in the database on page load

My code

INSERT [dbo].[issuesheet] ([id], [pid], [machine], [orderquantity], [workdocket], [cylinders], [dies], [embossings], [inks], [ints], [comment], [solvents]) VALUES (1, 206, N'machine', 67543, N'bbbbb', N'[''150057680-1A'',''150057680-4A'',''150057680-3A'']', N'[]', N'[]', N'[]', NULL, NULL, N'[]')
--from the table i have three(3) cylinders available
N'[''150057680-1A'',''150057680-4A'',''150057680-3A'']

<asp:GridView ID="avDetails" runat="server" AutoGenerateColumns="False"
    Font-Names="Candara"
    Font-Size="8px" DataKeyNames="pid"
    Width="100%" Style="margin-bottom: 0px"
    CssClass="grid" CellPadding="2" ForeColor="#333333" GridLines="None" Font-Bold="True">
    <AlternatingRowStyle BackColor="White" />
    <Columns>
        <asp:BoundField DataField="no" HeaderText="BASE NO" />
        <asp:BoundField DataField="Pid" HeaderText="PROD CODE" />
        <asp:BoundField DataField="posino" HeaderText="POSI NO" />
        <asp:BoundField DataField="description" HeaderText="DESCRIPTION" />
        <asp:BoundField DataField="colour" HeaderText="COLOUR" />
        <asp:BoundField DataField="deliverydate" HeaderText="RECEIVED" />
        <asp:BoundField DataField="supplier" HeaderText="SUPPLIER" />
        <asp:BoundField DataField="totalrev" HeaderText="TOTAL REV" />
        <asp:BoundField DataField="screen" HeaderText="SCR/ANG" />
        <asp:BoundField DataField="depth" HeaderText="DEPTH" />
        <asp:BoundField DataField="circumference" HeaderText="CIRC" />
        <asp:BoundField DataField="" HeaderText="STATUS" />
        <asp:TemplateField HeaderText="USE" >
            <ItemTemplate>
                <asp:CheckBox ID="chkSelect" runat="server" OnCheckedChanged="OnChckedChanged"  AutoPostBack="True" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <EditRowStyle BackColor="#2461BF" />
    <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
    <RowStyle BackColor="#EFF3FB" />
    <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
    <SortedAscendingCellStyle BackColor="#F5F7FB" />
    <SortedAscendingHeaderStyle BackColor="#6D95E1" />
    <SortedDescendingCellStyle BackColor="#E9EBEF" />
    <SortedDescendingHeaderStyle BackColor="#4870BE" />
</asp:GridView>

please help