Solved

Convert c# to asp.net

Posted on 2011-03-03
5
1,189 Views
Last Modified: 2013-12-17
I am needing help with converting this c# application that i did to be an asp.net application.
using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using System.Data;
	 
	using System.Data.SqlClient;
	 
	namespace ConsoleApplication1
	{
	    class Program
	    {
	        static void Main(string[] args)
	        {


string strConn, strSQL;
	            strConn = @"Data Source=. \SQLExpress; " +
	                       "Initial Catalog=Northwind;Integrated Security=True";
	            strSQL = "SELECT Customers.CustomerID, COUNT(Orders.OrderID) AS numOrders FROM Customers INNER JOIN Orders ON Customers.CustomerID  = Orders.CustomerID GROUP BY Customers.CustomerID";
	            DataSet ds = new DataSet();
	            SqlDataAdapter da = new SqlDataAdapter(strSQL, strConn);
	            da.Fill(ds);
	            //Display the customer information retrieved
	            foreach (DataRow row in ds.Tables[0].Rows)
	                Console.WriteLine("{0} {1}", row["CustomerID"], row["numOrders"]);
	 
	 
	 
	 
	            Console.Read();

}
}
}

Open in new window

0
Comment
Question by:hiddenjob
  • 2
  • 2
5 Comments
 
LVL 53

Expert Comment

by:Dhaest
ID: 35027937
You still can use the same code, only the displaying on the screen will be different (fe a datagrid)


http://www.aspnettutorials.com/tutorials/database/db-grid-aspnet2-csharp.aspx
http://msdn.microsoft.com/en-us/library/aa479341.aspx
string strConn, strSQL;
	            strConn = @"Data Source=. \SQLExpress; " +
	                       "Initial Catalog=Northwind;Integrated Security=True";
	            strSQL = "SELECT Customers.CustomerID, COUNT(Orders.OrderID) AS numOrders FROM Customers INNER JOIN Orders ON Customers.CustomerID  = Orders.CustomerID GROUP BY Customers.CustomerID";
	            DataSet ds = new DataSet();
	            SqlDataAdapter da = new SqlDataAdapter(strSQL, strConn);
	            da.Fill(ds);
gvwExample.DataSource = ds;

gvwExample.DataBind();

Open in new window

0
 

Author Comment

by:hiddenjob
ID: 35028022
So l will be able to use the code I had, with that slight change that you made with the gvwexample etc etc and be good to go?

Or I now need to make another file that will be calling this information through the datagrid

Programming is not my forte and you have to spell things out for me sometimes or i just get confused.
0
 

Author Comment

by:hiddenjob
ID: 35028539
So is this what I need to have done? It looks to be right but I cannot get it to run to test. Feedback?
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" 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>
<title>Project 4</title>
<style type="text/css">
<!--
body {
	margin-left: 0px;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
}
a:link {
	color: #0000FF;
}
a:visited {
	color: #0000FF;
}
a:hover {
	color: #0000FF;
	text-decoration: none;
}
a:active {
	color: #0000FF;
	}
.basix {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 11px;
}
.header1 {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 11px;
	font-weight: bold;
	color: #006699;
}
.lgHeader1 {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 18px;
	font-weight: bold;
	color: #0066CC;
	background-color: #CEE9FF;
}
-->
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<form id="form1" runat="server">
<br />
<table width="752" border="0" align="center" cellpadding="0" cellspacing="0">
<tr bgcolor="#5482FC"> 
<td colspan="4"></td>
</tr>
<tr> 
<td width="1" bgcolor="#5482FC"></td>
<td width="250"></td>
<td width="500" bgcolor="#3399ff"></td>
<td width="1" bgcolor="#5482FC"></td>
</tr>
<tr bgcolor="#5482FC"> 
<td colspan="4"></td>
</tr>
</table>
<div><br />
<table width="600" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#5482fc">
<tr> 
<td height="50" align="center" class="lgHeader1">How to Display Data using the GridView control ASP.NET 
2.0 and C#</td>
</tr>
</table>
<br />
<table width="600" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#cccccc">
<tr> 
<td width="100" align="right" bgcolor="#eeeeee" class="header1"> Database Results</td>
<td align="center" bgcolor="#FFFFFF">
<asp:GridView ID="gvwExample" runat="server" AutoGenerateColumns="False" CssClass="basix"  > 
<columns>
<asp:BoundField DataField="customersID" HeaderText="CustomerID"  />
<asp:BoundField DataField="numOrders" HeaderText="Order #'s" />

</columns>
</asp:GridView> 
<asp:label ID="lblStatus" runat="server"></asp:label></td>
</tr>
</table>
<br />
<table width="500" align="center" cellpadding="0" cellspacing="0">
<tr> 
<td height="50" align="center" class="basix"><br />

<br />
</td>
</tr>
</table>
<br />
<br />
<br />
</div>
</form>
</body>
</html>

Open in new window

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
     

        SqlCommand cmd = new SqlCommand("SELECT Customers.CustomerID, COUNT(Orders.OrderID) AS numOrders FROM Customers INNER JOIN Orders ON Customers.CustomerID  = Orders.CustomerID GROUP BY Customers.CustomerID", new SqlConnection("Server=localhost;Database=Northwind;Trusted_Connection=True;"));

     try
     {

      cmd.Connection.Open();

      gvwExample.DataSource = cmd.ExecuteReader();

      gvwExample.DataBind();

      cmd.Connection.Close();
      cmd.Connection.Dispose();

     }

     catch (Exception ex)
     {
      lblStatus.Text = ex.Message;
     }


    }
}

Open in new window

0
 
LVL 53

Expert Comment

by:Dhaest
ID: 35034115
If you debug it, do you get any error ?
0
 
LVL 8

Accepted Solution

by:
PagodNaUtak earned 250 total points
ID: 35034978
one more thing, change your code behind to this one:
using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
  
public partial class _Default : System.Web.UI.Page   
{  
    protected void Page_Load(object sender, EventArgs e)  
    {  
       
  if (!isPostBack){
        SqlCommand cmd = new SqlCommand("SELECT Customers.CustomerID, COUNT(Orders.OrderID) AS numOrders FROM Customers INNER JOIN Orders ON Customers.CustomerID  = Orders.CustomerID GROUP BY Customers.CustomerID", new SqlConnection("Server=localhost;Database=Northwind;Trusted_Connection=True;"));  
  
     try  
     {  
  
      cmd.Connection.Open();  
  
      gvwExample.DataSource = cmd.ExecuteReader();  
  
      gvwExample.DataBind();  
  
      cmd.Connection.Close();  
      cmd.Connection.Dispose();  
  
     }  
  
     catch (Exception ex)  
     {  
      lblStatus.Text = ex.Message;  
     }  
  
  
    }  
}
}

Open in new window

0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

We all know that functional code is the leg that any good program stands on when it comes right down to it, however, if your program lacks a good user interface your product may not have the appeal needed to keep your customers happy. This issue can…
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
This is used to tweak the memory usage for your computer, it is used for servers more so than workstations but just be careful editing registry settings as it may cause irreversible results. I hold no responsibility for anything you do to the regist…
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…

912 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now