Search Function

Apr 4, 2007

I am trying to write a used car search function I want the user to be able to select a MAKE from the 1st drop down list and a MODEL from the second drop down list and click a button and for the data to be shown in a gridview, the code below is what I have so far and works i.e when user selects a make it shows all cars for that make, but now how do I take it further and add the model on there so that when the user selects i.e BMW as make and Z3 for model it only shows all BMW Z3'S

 

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

<title>Untitled Page</title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>">

</asp:SqlDataSource>

<br />

<asp:DropDownList ID="ddmake" runat="server" DataSourceID="SqlDataSource2" DataTextField="make"

DataValueField="make" AutoPostBack="True">

</asp:DropDownList><asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"

SelectCommand="SELECT DISTINCT [make] FROM [used]"></asp:SqlDataSource>

&nbsp;&nbsp;</div>

<asp:button id="button1" runat="server" text="search"/>

<asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource1">

</asp:GridView>

&nbsp;

</form>

</body>

</html>

 

Here is the code behind the page

Protected Sub button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles button1.Click

SqlDataSource1.SelectCommand = "select * from [used] where make like '%" & ddmake.Text & "%'"

SqlDataSource1.DataBind()

End Sub

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