Unrecognized attribute 'xmlns'.

this error actually means that the site is running old Framework version,
what you need to do is the following:
1.Open Internet Information Services and navigate to "Default Web Site" (or the site you're using as your default).
2.Right click the Site icon (the one with the globe).
3.Select the ASP.NET tab. You'll see a drop-down with the available versions (if you're getting the error, odds are, you'll see 1.1).
4.Select the proper build of ASP.NET 2.0 (or later, depends on the version you worked on in the developing stage).
5.Restart IIS.

Using Notify Icon Object

notifyIcon1.Icon = new System.Drawing.Icon(@"c:\1.ico");
notifyIcon1.Visible = true;
notifyIcon1.Text = "Test Notify Icon Demo";
notifyIcon1.BalloonTipTitle = "ByRamiX Product";
notifyIcon1.BalloonTipText = "This Product was programmed ByRamiX";
notifyIcon1.ShowBalloonTip(5000);

using the data base class

here we built a simple search engine that uses the batabase class that we built before


using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace databasetest
{
///

/// Summary description for WebForm1.
///

public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid DG1;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.Button BtnSearch;
protected System.Web.UI.WebControls.TextBox txtSearchWord;
db db1;
private void Page_Load(object sender, System.EventArgs e)
{
db1=new db("Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+Server.MapPath("database//freddydb.mdb"));
DG1.DataSource = db1.executeSQL("select * from users");
DG1.DataBind();
db1.closeDBCommand();
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
///

/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///

private void InitializeComponent()
{
this.BtnSearch.Click += new System.EventHandler(this.BtnSearch_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void BtnSearch_Click(object sender, System.EventArgs e)
{
try
{
if (txtSearchWord.Text.Trim()!="" )
{
DG1.DataSource = db1.executeSQL("select * from users where username like '"+txtSearchWord.Text+"%' or userfirstName like '"+txtSearchWord.Text+"%' or userLastName like '"+txtSearchWord.Text+"%'");
DG1.DataBind();
db1.closeDBCommand();
}
}
catch (Exception ex)
{
response.write (ex.Message);
}
}
}
}

connecting a database with c# / asp.net

this is the code of database connection and sql executing functions

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.OleDb;

///

/// data base class
///

public class db
{
OleDbConnection gDbConn;
OleDbCommand gDbCmd;
public string error;
public db(string connStr)
{
try
{
gDbCmd = new OleDbCommand();
gDbConn = new OleDbConnection();
gDbConn.ConnectionString = connStr;
error="class built successfully";
}
catch (Exception e)
{
error = "[class constructor] building class faild, error in connecting database error discribe: "+e.Message ;
}
}
public OleDbDataReader executeSQL(String sql)
{
try
{
OleDbDataReader rs ;
gDbConn.Open();
gDbCmd.Connection = gDbConn;
gDbCmd.CommandText = sql;
if (sql.Contains("select") )
rs = gDbCmd.ExecuteReader();
else
{
gDbCmd.ExecuteNonQuery();
rs = null;
}
error = "executeSQL executed successfully";
return rs;
}
catch(Exception e)
{
error = "[execute sql] failed to execute sql statement error discribe:" + e.Message
return null;
}
}
}

an example of using this class here: http://byramix.blogspot.com/2006/10/using-data-base-class.html

Publishing .net WebApplicatuib

if you are tring to publish a .net webApplication, it doesn't matter if it's c# or VB.net you should do the following steps :
1. copy the files tin your projects
you don't need to copy them all, only the aspx, and the congidurations files and very important is to copy the bin directory other wise you'll get theis error message:
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Could not load type 'AppName.Global'.

2.Create Virtual Directory
this is a very important step, alot of people loose aloth of time untill they knwo they should do it (at least i did :)
go to the iis, stand on the default webSite (in the websites) and right click and the new virtual director.
if you don;t do this step so you will get the following error message:
An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.

Request for the permission of type System.Net.WebPermission

your spent too much time on tring tounderstand why your application dons'nt work?? yea tell me about it, security request ...
i'm looking for it two weeks ago.. no one has no idea! until i foud this blog... http://blogs.conchango.com/kenibarwick/archive/2004/11/05/195.aspx
he said it simple! don't put your aplication on shared folder....
i stored my application on a mapped drive on my network!!
so if you did like me just copy the folder to your C drive and it's work properly!
http://www.byramix.com