troubleshooting Question

get value from drop down list an pass to a detail page

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cesemj asked on
.NET ProgrammingASP.NET
9 Comments2 Solutions280 ViewsLast Modified:
I created a form with dropdown list.  I woul like to get the selected value and pass the values to a detail page that will show the data results.  I am having a problem collecting the values to pass to the detail page like a where query.  Please help.

Also, I have manually tested the query that the detail page will use in sql server 2005 using the values that I would like to pass from the drop down list and the test works fine.

SELECT     dbo.cbmPart.Class, dbo.WorkOrders.ESD, dbo.WorkOrders.Priority, dbo.WorkOrders.PrimTech,
FROM         dbo.WorkOrders INNER JOIN
                      dbo.Visits ON dbo.WorkOrders.VisitID = dbo.Visits.VisitID INNER JOIN
                      dbo.Ships ON dbo.Visits.ShipID = dbo.Ships.RecordID INNER JOIN
                      dbo.cbmPart ON dbo.Ships.ShipClassID = dbo.cbmPart.RecordID
WHERE     (dbo.cbmPart.Class = 999) AND (dbo.WorkOrders.PrimTech = 'OutdoorUnit') AND (dbo.WorkOrders.ESD = 'AIR-Belt')
                      AND (dbo.WorkOrders.Priority = '1') AND (dbo.Visits.DateEntered BETWEEN CONVERT(DATETIME, '2008-01-01 00:00:00', 102) AND
                      CONVERT(DATETIME, '2008-05-01 00:00:00', 102))
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="rptTest.aspx.vb" Inherits="test.Test" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<html xmlns="" >
<head runat="server">
    <title>Untitled Page</title>
<body style="text-align: center">
    <form id="form1" runat="server">
    <div style="text-align: center">
        <asp:DropDownList ID="cbmPart" runat="server" AutoPostBack="True" DataSourceID="dscbmPart"
            DataTextField="Class" DataValueField="RecordID">
        <asp:DropDownList ID="cbmTech" runat="server" DataSourceID="SqlDataSource1" DataTextField="Technology"
            DataValueField="Technology" AutoPostBack="True">
        <asp:DropDownList ID="CbmSystem" runat="server" AutoPostBack="True" DataSourceID="dsCbmSystem"
            DataTextField="ESD" DataValueField="ESD">
        <asp:DropDownList ID="CbmPrity" runat="server" DataSourceID="dsCbmPrity" DataTextField="Priority"
        </asp:DropDownList>&nbsp;<br />
        <br />
        Start Date
        <asp:TextBox ID="tbxStartDate" runat="server"></asp:TextBox>
        &nbsp;<asp:ImageButton ID="btnCalendar1" runat="server" ImageUrl="~/Images/picCalendar.jpg" />
        &amp; End Date
        <asp:TextBox ID="tbxEndDate" runat="server"></asp:TextBox>
        <asp:ImageButton ID="btnCalendar2" runat="server" ImageUrl="~/Images/picCalendar.jpg" />
        <br />
        <br />
        <asp:LinkButton ID="lbtnDisplayRecords" runat="server">Display Records</asp:LinkButton><br />
        <br />
        <asp:SqlDataSource ID="dsCbmPrity" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
            SelectCommand="SELECT [ESD], [Priority] FROM [tblCbmPrity] WHERE ([ESD] = @ESD)">
                <asp:ControlParameter ControlID="CbmSystem" Name="ESD" PropertyName="SelectedValue"
                    Type="String" />
        <asp:SqlDataSource ID="dsCbmSystem" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
            SelectCommand="SELECT [ESD], [PrimTech] FROM [tblCbmSystem] WHERE ([PrimTech] = @PrimTech)">
                <asp:ControlParameter ControlID="cbmTech" Name="PrimTech" PropertyName="SelectedValue"
                    Type="String" />
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
            SelectCommand="SELECT [Technology], [RecordID] FROM [tblDDlTech] WHERE ([RecordID] = @RecordID)">
                <asp:ControlParameter ControlID="cbmPart" Name="RecordID" PropertyName="SelectedValue"
                    Type="String" />
        <asp:SqlDataSource ID="dscbmPart" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
            SelectCommand="SELECT [RecordID], [Class] FROM [ShipClasses]"></asp:SqlDataSource>
        <cc1:CalendarExtender ID="CalendarExtender1" runat="server" PopupButtonID="btnCalendar1"
        <cc1:CalendarExtender ID="CalendarExtender2" runat="server" PopupButtonID="btnCalendar2"
        <cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">

***************** Code Behind Page *************************
Imports System.Data
Imports System.Data.Common
Imports System.Configuration
Imports System.Collections
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports System.Data.SqlClient
Imports Microsoft.VisualBasic

Partial Public Class rptTest
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    End Sub

    Protected Sub lbtnDisplayRecords_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lbtnDisplayRecords.Click

        Dim cbmPart As DropDownList
        'cbmPart value=Request.Form[cbmPart].SelectedValue];
        cbmPart.SelectedValue.Contains(cbmPart)  **' Error msg cannot be converted to string

        Dim cbmTech As DropDownList

        Dim CbmSystem As DropDownList

        Dim CbmPrity As DropDownList

        Dim tbxStartDate As DropDownList

        Dim tbxEndDate As DropDownList

        'Dim passdata As New StringCollection

'Does Not Work
        ' get the value from each combo box and two date range fields
        '        Dim cbmPart As Integer = _

        'Session("passdata") = passdata
        'Response.Redirect("~/Members/Test/rptTestDetail.aspx", True)
    End Sub
End Class

***************************Detail Page ******************************
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="rptSSDCLDetail.aspx.vb" Inherits="test.rptTestDetail" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<html xmlns="" >
<head runat="server">
    <title> Test</title>
    <form id="form1" runat="server">
        Detail Page<br />
        <br />
        <asp:GridView ID="GridView1" runat="server">
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