No value given for one or more required parameters. in asp.NET

am trying to get the column values from a grid view when a row is checked and insert those values into some other table , here is my c # code when a check box in grid view is selected

    protected void chkfun_CheckedChanged(object sender, EventArgs e)
        {
            CheckBox chkstatus = (CheckBox)sender;
            GridViewRow row = (GridViewRow)chkstatus.NamingContainer;
        }
     protected void hidebutton_Click(object sender, EventArgs e)
        {
            OleDbConnection acc = dc_object.a_object.Connect("CARLI_funds_FY16");
            OleDbCommand commd = new OleDbCommand();
            commd.Connection = acc;
            CheckBox x1;
            HiddenField x2;
            for (int i = 0; i < GridView1.Rows.Count; i++)
            {
                x1 = GridView1.Rows[i].FindControl("chkfun") as CheckBox;
                if (x1.Checked)
                {
                    x2 = GridView1.Rows[i].FindControl("hdnfld") as HiddenField;
                    var fund_code = (GridView1.Rows[i].FindControl("lblfundcode") as Label).Text;
                    var fund_name = (GridView1.Rows[i].FindControl("lblfundname") as Label).Text;

                    commd.CommandText = "insert into funds_hidden values(fund_code,fund_name)";
                commd.ExecuteNonQuery();
                }

            }
            acc.Close();
            Response.Redirect("allfunds.aspx");
        }

and here is my code for aspx

 <asp:GridView ID="GridView1" runat="server" DataKeyNames="ID,FUND_CODE,FUND_NAME" AllowSorting="True" CellPadding="4" DataSourceID="SqlDataSource1" ForeColor="#333333" GridLines="None" AutoGenerateColumns="False">
                <AlternatingRowStyle BackColor="White" />
                <Columns>
                    <asp:TemplateField>
                        <HeaderTemplate>
                            <asp:CheckBox ID="chkheader" runat="server" OnCheckedChanged="chkheader_CheckedChanged" AutoPostBack="True" />
                        </HeaderTemplate>
                        <ItemTemplate>
                            <asp:CheckBox ID="chkfun" runat="server" OnCheckedChanged="chkfun_CheckedChanged" AutoPostBack="True" />
                            <asp:HiddenField ID="hdnfld" runat="server" value='<%# Eval("ID") %>'/>
                        </ItemTemplate>
                    </asp:TemplateField>
                           <asp:TemplateField HeaderText="FUND_CODE">
                        <ItemTemplate>
                        <asp:Label ID="lblfundcode" runat="server" Text='<%# Eval("FUND_CODE") %>'></asp:Label>
                        </ItemTemplate>
                    </asp:TemplateField>
                     <asp:TemplateField HeaderText="FUND_NAME">
                        <ItemTemplate>`enter code here`
                        <asp:Label ID="lblfundname" runat="server" Text='<%# Eval("FUND_NAME") %>'></asp:Label>
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
                </asp:GridView>
                <asp:LinkButton ID="hidebutton" runat="server" OnClick="hidebutton_Click" Text="hide" />
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" SortParameterName="" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>" SelectCommand="SELECT ID,NORMAL_FUND_NAME AS FUND_NAME, NORMAL_FUND_CODE AS FUND_CODE FROM funds_sample1 WHERE (LEDGER_ID = 43) AND (PARENT_FUND = 1124 OR PARENT_FUND = 984 OR PARENT_FUND = 370 OR PARENT_FUND = 363)"></asp:SqlDataSource>
        </form>

am just beginner please guide me if there are any mistakes in my code and what should i do to clear this error, thanks in advance