How do I pass an Int32 value from one page to another?

Experts...

Yes I'm a rookie here so I'll try to be as clear as possible.  I have 2 .aspx pages:

Page 1) products_lookup22.aspx
Page 2) products_EMail.aspx

"Page 1" has a search then a gridview (Like a Summary) that list general information about a product as in:

(Summary)
             "Catalog"                   "Vendor"                    "Description"                 "Rec#"
details   77L8453001D           ADVANCE                 400 WHPS BLST             38
details   TQC1110WL             GE-ED&C                   BRKR CIRCUIT 1P10A     1424
details   ICQ693MDL330        GE-ED&C                    OUT MODULE 2A           1674
details   IC697PWR711          GE-FANUC                 9070 POW SUP              1682
(ETC...)

IF the user clicks on the link "details" we open a "DetailsView" just below the summary grid that provides specifics on just the single record (example: we click "details" for record 38).  We see...

(Details)
Vendor:            ADVANCE
CATALOG:       77L8453001D
DESCRIPTION:  400 WHPS BLST            
NAED V/I:         781087-11529
SOLD BY:        EA
IN STOCK:        6
LIST PRICE:      $133.66    

OK...so far all is fine.   Everythings works as advertised.  Now what I need to do is 'pass' the value '38' to "Page 2" which has its own "DetailView" to look the record up again; this form will be e-mailed in its entirety via aspNetEMail.

At the bottom of "Page 1" I have hypertext link called "Get Quote...".  NavigateURL Code is:

~/products_EMail.aspx?RecordID2=RecordID

When I run it (click on "Get Quote..." hyperlink) the page changes to the following URL and I get the error message:

(URL) http://localhost:2467/hpoll-dd/products_EMail.aspx?RecordID2=RecordID

(ERROR MESSAGE)

Input string was not in a correct format.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.FormatException: Input string was not in a correct format.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  

Stack Trace:


[FormatException: Input string was not in a correct format.]
   System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +2755599
   System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +112
   System.String.System.IConvertible.ToInt32(IFormatProvider provider) +43
   System.Convert.ChangeType(Object value, TypeCode typeCode, IFormatProvider provider) +293
   System.Web.UI.WebControls.Parameter.GetValue(Object value, String defaultValue, TypeCode type, Boolean convertEmptyStringToNull, Boolean ignoreNullableTypeChanges) +264
   System.Web.UI.WebControls.Parameter.get_ParameterValue() +66
   System.Web.UI.WebControls.ParameterCollection.GetValues(HttpContext context, Control control) +254
   System.Web.UI.WebControls.SqlDataSourceView.InitializeParameters(DbCommand command, ParameterCollection parameters, IDictionary exclusionList) +274
   System.Web.UI.WebControls.SqlDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +754
   System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +17
   System.Web.UI.WebControls.DataBoundControl.PerformSelect() +149
   System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +70
   System.Web.UI.WebControls.DetailsView.DataBind() +4
   System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +82
   System.Web.UI.WebControls.DetailsView.EnsureDataBound() +181
   System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +69
   System.Web.UI.Control.EnsureChildControls() +87
   System.Web.UI.Control.PreRenderRecursiveInternal() +50
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2041
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433

At the top of "Page 2" I dimension "RecordID2" as in:

Dim RecordID2 As Int32

The "Page 2" datasource and query is:

<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:IDC_Receiving %>"
                         
SelectCommand="SELECT [CTMFGNAME], [CTSTOCK], [CTDESCRIPTION], [DISTSKU], [CTUM], [COMMODITYNAME], [RecordID] FROM [Cooper-Master-Items-Table] WHERE (([IDCPROVIDERCODE] = @IDCPROVIDERCODE) AND ([RecordID] = @RecordID2))">

<SelectParameters>
                            <asp:Parameter DefaultValue="IDC001" Name="IDCPROVIDERCODE" Type="String" />
                            <asp:QueryStringParameter Name="RecordID2" QueryStringField=RecordID2 Type="Int32" />
</SelectParameters>
                    </asp:SqlDataSource>

OK...SO
If I run this from "Page 1" I get the error message "Input string was not in a correct format."
If I run "Page 2" standalone as in URL "http://localhost:1905/hpoll-dd/products_EMail.aspx?recordid2=38" it displays fine...

Again...'a newbie' so Any feedback would be appreciated...

Thanks in advance!

DM