Help in passing value to next .asp page

Question

Hi all, i need help on this problem. i want to pass the value of tag_num and platform to the detail.asp, somehow it give me error. below are my code and screenshot.
<%
While ((Repeat1__numRows <> 0) AND (NOT Recordset1.EOF))
%>
      <tr>
        <td height="50" bgcolor="#FFFFFF"><span class="style2"><%=(Recordset1.Fields.Item("tag_num").Value)%></span></td>
        <td height="50" bgcolor="#FFFFFF"><span class="style2"><%=(Recordset1.Fields.Item("platform").Value)%></span></td>
        <td width="205" bgcolor="#FFFFFF"><span class="style2"><%=(Recordset1.Fields.Item("system").Value)%></span></td>
        <td width="41" bgcolor="#FFFFFF"><a HREF="detail.asp?<%= Server.HTMLEncode(MM_keepNone) & MM_joinChar(MM_keepNone) & "tag_num=" & Recordset1.Fields.Item("tag_num").Value & "platform=" & Recordset1.Fields.Item("platform").Value %>">VIEW</a></td>
      </tr>
      <%
  Repeat1__index=Repeat1__index+1
  Repeat1__numRows=Repeat1__numRows-1
  Recordset1.MoveNext()
Wend
%>
"part of detail.asp code to receive the value"
<%
Dim Recordset1__MMColParam
Recordset1__MMColParam = "1"
If (Request.QueryString("tag_num") <> "") Then
  Recordset1__MMColParam = Request.QueryString("tag_num")
End If
%>
<%
Dim Recordset1__MMColParam2
Recordset1__MMColParam2 = "1"
If (Request.QueryString("platform") <> "") Then
  Recordset1__MMColParam2 = Request.QueryString("platform")
End If
%>
<%
Dim Recordset1
Dim Recordset1_cmd
Dim Recordset1_numRows
Set Recordset1_cmd = Server.CreateObject ("ADODB.Command")
Recordset1_cmd.ActiveConnection = MM_InstrumentDB_STRING
Recordset1_cmd.CommandText = "SELECT * FROM Instrument_baram WHERE tag_num = ? AND platform = ?"
Recordset1_cmd.Prepared = true
Recordset1_cmd.Parameters.Append Recordset1_cmd.CreateParameter("param1", 200, 1, 255, Recordset1__MMColParam) ' adVarChar
Recordset1_cmd.Parameters.Append Recordset1_cmd.CreateParameter("param2", 200, 1, 255, Recordset1__MMColParam2)
Set Recordset1 = Recordset1_cmd.Execute
Recordset1_numRows = 0
%>
to display the dable, this is my code
<table width="450" border="1" cellspacing="0" bordercolor="#FF6600" bgcolor="#1941A5">
      <tr>
      <th style="background-color:#CEC49D" height="35" scope="row"><span class="style2">TAG NUMBER</span></th>
        <td bgcolor="#FFFFFF"><span class="style2"><%=(Recordset1.Fields.Item("tag_num").Value)%></span></td>
    </tr>
      <tr>
      <th style="background-color:#CEC49D" width="200" height="35" scope="row"><span class="style2">PLATFORM</span></th>
      <td width="356" bgcolor="#FFFFFF"><span class="style2"><%=(Recordset1.Fields.Item("platform").Value)%></span></td>
    </tr>
    <tr>
      <th style="background-color:#CEC49D" height="35" scope="row"><span class="style2">TYPE OF SYSTEM</span></th>
      <td bgcolor="#FFFFFF"><span class="style2"><%=(Recordset1.Fields.Item("system").Value)%></span></td>
    </tr>
it give me this error
Please somebody help me. Thanks in advance.
Regards,
Zuma.

Answer 1

yup. my page connected to the server. if i pass "tag_num" value only, it will give me no error. the output is there. but the things is i need to pass "platform" value.
sample of my database structure is
Instrument_baram
tag_num platform field system
AGSC_503
BNP-C
BARONIA
PMCS
AGSC_503
BNP-B
BARONIA
PMCS
TAG NUMBER
TYPE OF INSTRUMENT
SYSTEM
PLATFORM
AGSC_503
Limit switch
PMCS
BNP-C
View
AGSC_503
Limit switch
PMCS
BNP-B
View
if i pass "tag_num" value only, it will select AGSC_503 platform BNP-C only eventhough i click on AGSC_503 platform BNP-B "View".
that why i need to pass the "platform" value