Confused Need Help With SQLDataSource Control

I have a gridview that is tied to a SQLDataSource control. As the gridview is filled some of the ASPX code calls some code in the code behind page. Where I am having trouble is that in one of these calls I need to some how pass the id filed ("LISTID")of the table for the SQL statement in the code behind page and I'm not sure how to do it.

The code behind function is always using the same id and I do not know how to change it. Below is all the code.

 

Here is the calling code in the ASPX page.

"DeleteBtn" Visible='<%# IsDeleteBtnVisible %>' runat="server" CausesValidation="False" CommandName="Delete" Text="Delete" ForeColor="#003399">
 
Here is the entire ASPX code.
 
    class="header">
   
        class="title">My Lists
        "Span1">
            Current List Filter:
            "DropDownList2" cssclass="filterdropdown" AutoPostBack="true" runat="server">
                "Active" Value="False">
                "Done" Value="true">
           
       
       
        --------------------------------------------------------------------------------"separator2"/>
       
   
   
        "list2">
        "ScriptManager1"  EnablePartialRendering="true"  runat="server">
       
 
 "Up2" UpdateMode="Conditional" runat="server">
          
           
                      
                    "GridView1" runat="server" AutoGenerateColumns="False"
                        DataKeyNames="LISTID" DataSourceID="SqlDataSource1"
                        AllowPaging="True" AllowSorting="True" EnableViewState="False" GridLines="None"
                        AlternatingRowStyle-BackColor="#FFFFCC" AlternatingRowStyle-Font-Size="Small"
                        ForeColor="#FFFFCC" Font-Size="Small" AlternatingRowStyle-ForeColor="Black"
                        Width="100%" HeaderStyle-ForeColor="White">
       
                   
                         "False">
                           
                                "LinkButton1" runat="server" CausesValidation="True" CommandName="Update" Text="Update" ForeColor="#003399">
                                "LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel" ForeColor="#003399">
                           
                           
                                "LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" ForeColor="#003399">
                                "DeleteBtn" Visible='<%# IsDeleteBtnVisible %>' runat="server" CausesValidation="False" CommandName="Delete" Text="Delete" ForeColor="#003399">
                           
                            "buttons">
                            "commands">
                       
                       
                        "ITEM_DETAILS"  HeaderText="Details"  SortExpression="ITEM_DETAILS" ControlStyle-ForeColor="#003399">
                            "name_edit">
                            "name">
                            "name">
                       
                       
                        "Pri" itemStyle-HorizontalAlign="Center" SortExpression="Priority" ControlStyle-ForeColor="#003399">
                           
                                "DropDownList1" Width="75" SelectedValue='<%# Bind("Priority") %>' runat="server">
                                    "High" Value="3">
                                    "Medium" Value="2">
                                    "Low" Value="1">
                                                               
                           
                           
                                "pri" Text='<%# FormatPriority(Eval("Priority")) %>' runat="server">
                           
                            "priority">
                            "#003399">
                            "priority">
                       
                       
                        "DUEDATE" itemStyle-HorizontalAlign="Center"
                             HeaderText="Due Date" DataFormatString="{0:MM/dd/yyyy}"
                            SortExpression="DUEDATE" >

                            "Center">
                        

                        "COMPLETEDON" itemStyle-HorizontalAlign="Center"
                             HeaderText="Completed On" DataFormatString="{0:MM/dd/yyyy}"
                            SortExpression="COMPLETEDON" >

                            "Center">
                        

                        "Done" itemStyle-HorizontalAlign="Center" SortExpression="IsComplete">
                           
                                "CheckBox1" runat="server" Checked='<%# Bind("IsComplete") %>'>
                           
                            "iscomplete">
                            "iscomplete">
                           
                                "Done" Text='<%# FormatDone(Eval("IsComplete")) %>' runat="server">
                           
                       
                                       

                       
                       
               
                                "Button2" runat="server" CommandName="Something" DataTextField="LISTID" DataTextFormatString="{0} active items" text='<%# Eval("LISTID") %>'>
                           
              
              
                   
                   
                                           
                       
                            "Empty">No lists
                       
                       
                        "White">
                        "#FFFFCC" Font-Size="Small" ForeColor="Black">
                       
               
               
             
      
           
       
       
   
   
        "Div1">
       
       "Up3" UpdateMode="Conditional"  runat="server">
       
           
       
                Add New List: "AddItem2" cssclass="newitem"
                    runat="server">
                "Button1" runat="server" OnClick="AddListBtn_Click" Text="Add">
               
                "txtdate" runat="server">
       
           
       
           
                "Button1" EventName="Click">
             
       
           
       
                 
       
    "SqlDataSource1" runat="server"
        ConnectionString="&lt;%$ ConnectionStrings:FastTrackConnectionString %>"
        SelectCommand="SELECT * FROM [TODO]">
   
 
Here is the code behind page code.
 Protected Function IsDeleteBtnVisible() As Boolean
        '        Return IIf(itemCount = 0, True, False)

        'This is for my gridview
        Dim strConn2 As SqlConnection = New SqlConnection
        Dim cmd2 As SqlCommand = New SqlCommand
        Dim rs2 As SqlDataReader
        Dim test1 As String
        Dim test2 As String

        strConn2.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings("FastTrackConnectionString2").ToString()
        strConn2.Open()

        cmd2.Connection = strConn2
        cmd2.CommandText = "SELECT LISTID, (SELECT COUNT(0) AS ItemCount FROM TODO_SUB_ITEMS WHERE(LISTID = TODO.LISTID) AND (ISCOMPLETE ='False')) AS ItemCount FROM TODO WHERE (ISCOMPLETE ='False')"

        rs2 = cmd2.ExecuteReader()

        rs2.Read()

        Dim testlistid As Integer = rs2(0)
        Dim intholder As Integer = rs2(1)

        strConn2.Close()
        cmd2 = Nothing
        strConn2 = Nothing

        Return IIf(intholder = 0, True, False)


    End Function