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Creating a page that displays results from dropdownlist ASP.net

Dear all.

I have now created a form with 3 dropdlists that cascade succesfully.

Being unfamiliar with the terminology could anyone please assist with the following

1, I now need a submit button that loads a new page with the selected results of the 3rd ddlist in a repeating grid view. In addition to this two fields must be editable.

Please see my below code for what I have this far.

Note please ignore the country references this is from a previous tutorial file that I plan to clear up once more familiar with ASP.net

Codebehind.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;


public partial class CountryDropdowns : System.Web.UI.Page
{
private String strConnection = "Data Source=££££££;Initial Catalog=£££££;Persist Security Info=True;User ID=BIS;Password=£££££";
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
BindContrydropdown();
}

}
/// <summary>
/// Bind Departmentdropdown
/// </summary>
protected void BindContrydropdown()
{
//conenction path for database
SqlConnection con = new SqlConnection(strConnection);
con.Open();
SqlCommand cmd = new SqlCommand("SELECT [DeptSID],[DeptCode],[DeptName],[ParentSID] FROM [dbo].[vIP_Dept]", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
ddlCountry.DataSource = ds;
ddlCountry.DataTextField = "DeptName";
ddlCountry.DataValueField = "DeptSID";
ddlCountry.DataBind();
ddlCountry.Items.Insert(0, new ListItem("--Select--", "0"));
ddlState.Items.Insert(0, new ListItem("--Select--", "0"));
ddlRegion.Items.Insert(0, new ListItem("--Select--", "0"));

}
/// <summary>
/// Bind Curriculum Dropdown Based on CountryID
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void ddlCountry_SelectedIndexChanged(object sender, EventArgs e)
{
int CountryID = Convert.ToInt32(ddlCountry.SelectedValue);
SqlConnection con = new SqlConnection(strConnection);
con.Open();
SqlCommand cmd = new SqlCommand("SELECT [CAreaSID],[CAreaCode],[CAreaName],[ParentSID],[LedgerCode] FROM [dbo].[vIP_CurriculumArea] where ParentSID=" + CountryID, con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
ddlState.DataSource = ds;
ddlState.DataTextField = "CAreaName";
ddlState.DataValueField = "CAreaSID";
ddlState.DataBind();
ddlState.Items.Insert(0, new ListItem("--Select--", "0"));
if(ddlState.SelectedValue=="0")
{
ddlRegion.Items.Clear();
ddlRegion.Items.Insert(0, new ListItem("--Select--", "0"));
}

}
/// <summary>
/// Bind Course Offering dropdown based on Re
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void ddlState_SelectedIndexChanged(object sender, EventArgs e)
{
int StateID = Convert.ToInt32(ddlState.SelectedValue);
SqlConnection con = new SqlConnection(strConnection);
con.Open();
SqlCommand cmd = new SqlCommand("SELECT [CAreaSID],[OfferingCode], [OfferingDescription] FROM [dbo].[vIP_Offering] WHERE [CAreaSID] =" + StateID, con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
ddlRegion.DataSource = ds;
ddlRegion.DataTextField = "OfferingDescription";
ddlRegion.DataValueField = "OfferingCode";
ddlRegion.DataBind();
ddlRegion.Items.Insert(0, new ListItem("--Select--", "0"));
}
protected void Button1_Click(object sender, EventArgs e)
{

}
}

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DDlist.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CountryDropdowns.aspx.cs" Inherits="CountryDropdowns" %>

<!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>CasCading Dropdowns Sample</title>
    <style type="text/css">
        .style1
        {
            height: 26px;
        }
    </style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table align="center">
<tr>
<td colspan="2" height="200px" valign="bottom">
<h3>Functional Skills Maths and English</h3> 
</td>
</tr>
<tr>
<td>
Select Department:
</td>
<td>
<asp:DropDownList ID="ddlCountry" runat="server" AutoPostBack="true" 
onselectedindexchanged="ddlCountry_SelectedIndexChanged"></asp:DropDownList>
</td>
</tr>
<tr>
<td class="style1">
Select Curriculum Area:
</td>
<td class="style1">
<asp:DropDownList ID="ddlState" runat="server" AutoPostBack="true" 
onselectedindexchanged="ddlState_SelectedIndexChanged"></asp:DropDownList>
</td>
</tr>
<tr>
<td>
    Select Offering:
</td>
<td>
<asp:DropDownList ID="ddlRegion" runat="server"></asp:DropDownList>
</td>
</tr>
</table>
    <br />
    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
</div>
</form>
</body>
</html>

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CountryDropdowns.aspx.cs" Inherits="CountryDropdowns" %>

<!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>CasCading Dropdowns Sample</title>
    <style type="text/css">
        .style1
        {
            height: 26px;
        }
    </style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table align="center">
<tr>
<td colspan="2" height="200px" valign="bottom">
<h3>Functional Skills Maths and English</h3> 
</td>
</tr>
<tr>
<td>
Select Department:
</td>
<td>
<asp:DropDownList ID="ddlCountry" runat="server" AutoPostBack="true" 
onselectedindexchanged="ddlCountry_SelectedIndexChanged"></asp:DropDownList>
</td>
</tr>
<tr>
<td class="style1">
Select Curriculum Area:
</td>
<td class="style1">
<asp:DropDownList ID="ddlState" runat="server" AutoPostBack="true" 
onselectedindexchanged="ddlState_SelectedIndexChanged"></asp:DropDownList>
</td>
</tr>
<tr>
<td>
    Select Offering:
</td>
<td>
<asp:DropDownList ID="ddlRegion" runat="server"></asp:DropDownList>
</td>
</tr>
</table>
    <br />
    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
</div>
</form>
</body>
</html>

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ASKER CERTIFIED SOLUTION

sammySeltzer

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