SQL Query ... Dynamically

 Hi....
I am fresh to asp.net .... i want to get the Request.QueryString Value Dynamically in SQL Query ... I have attached the coding of two files please gothrough and give the solution..
First File : -
actyearwise.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="actyearwise.aspx.cs" Inherits="acts_actyearwise"
    MasterPageFile="~/MasterPage.master" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
    <asp:FormView ID="FormView1" AllowPaging="false" DataSourceID="AccessDataSource1"
        Width="80%" align="center" runat="server">
        <ItemTemplate>
            <tr style="font-family: Arial; font-size: small;">
                <td align="left" width="7%">
                    <a id="href1" href="actcheck.aspx?2007" target="_self">2007</a>
                </td>
                <td align="left" width="7%">
                    <a id="A1" href="actcheck.aspx?2006" target="_self">2006 </a>
                </td>
                <td align="left" width="7%">
                    <a id="A2" href="actcheck.aspx?2005" target="_self">2005 </a>
                </td>
                <td align="left" width="7%">
                    <a id="A3" href="actcheck.aspx?2004" target="_self">2004 </a>
                </td>
              
            </tr>
        </ItemTemplate>
    </asp:FormView>
    <asp:SqlDataSource ID="AccessDataSource1" runat="server" OnSelecting="AccessDataSource1_Selecting"
        ConnectionString="Data Source=.SQLEXPRESS;AttachDbFilename=C:InetpubwwwrooteLawApp_DatasampleDB.mdf;Integrated Security=True;User Instance=True"
        ProviderName="System.Data.SqlClient" SelectCommand="SELECT * FROM actindex "></asp:SqlDataSource>
</asp:Content>
<asp:Content ContentPlaceHolderID="FooterPlaceHolder1" ID="Content2" runat="server">
</asp:Content>
 actyearwise.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class acts_actyearwise : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
       
    }
    protected void AccessDataSource1_Selecting(object sender, SqlDataSourceSelectingEventArgs e)
    {

    }
}
// This page works Properly...
 
 In the actyearwise.aspx ..just some years with link... i have entered ...the href page is actcheck.aspx(below).. In this page i want the years dynamically.. please go through
Second file : -

actcheck. aspx
 
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="actcheck.aspx.cs" Inherits="acts_actfiles_actcheck"
    MasterPageFile="~/MasterPage.master" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3"
        DataKeyNames="actno" DataSourceID="AccessDataSource1" Width="100%" AllowSorting="true">
        <Columns>
            <asp:BoundField HeaderText="actno" Visible="False"/>
            <asp:TemplateField SortExpression="actno">
                <ItemTemplate>
                    <table width="80%" align="center">
                        <tr>
                            <td align="left" width="3%" colspan="3">
                                <%# Eval("actno") %>
                            </td>
                            <td align="left" width="75%">
                                <a id="href1" href="actshorttitle.aspx?<%# Eval("actid") %>" target="_self">
                                    <%# Eval("actname") %>
                                </a>
                            </td>
                        </tr>
                    </table>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="AccessDataSource1" runat="server" OnSelecting="AccessDataSource1_Selecting"
        ConnectionString="Data Source=.SQLEXPRESS;AttachDbFilename=C:InetpubwwwrooteLawApp_DatasampleDB.mdf;Integrated Security=True;User Instance=True"
        ProviderName="System.Data.SqlClient" SelectCommand="SELECT * FROM actindex where actyear = 'check' ">
    </asp:SqlDataSource>
</asp:Content>
<asp:Content ContentPlaceHolderID="FooterPlaceHolder1" ID="Content2" runat="server">
</asp:Content>



actcheck. aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class acts_actfiles_actcheck : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        String check = Request.QueryString.ToString();
    }
    protected void AccessDataSource1_Selecting(object sender, SqlDataSourceSelectingEventArgs e)
    {

    }
}
 
 The text i had bold and italics in the actcheck.aspx... is the problem..... From the actyearwise.aspx .. i was passing the actyear value ..... In actcheck,aspx .. i want to get it dynamically in SQL Query...... Please give the solution .. I am using the SQL  database.
Table name actindex
fields name
actno
actname
actid
actyear 
In the actyear field i have different years .... 
Thanks in advance