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connect to MySQL webserver with C#

I try to connect to a MySQL database on a server a friend of mine has created, but it still says it cannot connect to the server!
Here is my code:
String connectionString = "Persist Security Info=False;database=qwertyui;server=www.qwertyuiop.com;Uid=asdfghj;Pwd=qazwsxedc;Connect Timeout=30";
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand("INSERT INTO etc.... ");
cmd.CommandType = CommandType.Text;
cmd.Connection = connection;
cmd.Parameters.AddWithValue( etc.... );
connection.Open();
int r = cmd.ExecuteNonQuery();
}
It failes on the connection.Open() instruction throwing an exception -> cannot connect to the server.
Any ideas please?

SqlConnection is a SQL Server client.
You need to download a MySql client from NuGet.

First download the MySQL Connector.
Make sure you add a reference to the DLL (+ set copy local to true !)
Add using MySql.Data.MySqlClient; on top of your class.
As for the Connection String, do not add http or www in front of server. As it will try to connect to apache (port 80) instead to MySQL. The default port of MySQL is 3306.
string connectionString = "Persist Security Info=False;database=qwertyui;server=qwertyuiop.com;Uid=asdfghj;Pwd=qazwsxedc;port=3306";
using (MySqlConnection connection = new MySqlConnection(connectionString))
{
string query = "INSERT INTO table VALUES (#parameter)";
connection.Open();
using (MySqlCommand cmd = new MySqlCommand(query, connection))
{
cmd.Parameters.AddWithValue("#parameter", parameter);
cmd.ExecuteNonQuery();
}
}
If this is not working. Make sure MySQL allows remote access, if this is not the case, you can keep trying forever without any result.

First thing that comes to mind is that you will have to use a MysqlConnection and command.
http://dev.mysql.com/doc/refman/5.0/es/connector-net-examples-mysqlconnection.html
Is it a local database?

And if with all of above does not work try to get grant to all privileges(GRANT Syntax)!
Basically it will go something like:
GRANT ALL PRIVILEGES ON DBname.* to 'username'#'IPadress' IDENTIFIED BY 'password';

MySqlConnection in C# not working

My connection to my database is not working. It tries to load for a long time then says the connection failed. All i want to do is access the database and print out a name. I am brand new to this but here is what i have so far:
string connectionstring = "uid=user;server=it.et.byu.edu;port=xxxxx;database=database;password=password;";
MySqlConnection connection = new MySqlConnection(connectionstring);
connection.Open();
MySqlCommand cmd = new MySqlCommand("SELECT username FROM Users WHERE username='george'", connection);
try
{
MySqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{
Console.WriteLine(rdr.GetString(0));
}
rdr.Close();
}
connection.Close();

Check your connection string and make sure you can connect/manipulate your MYSQL database if you are using XAMPP or other Mysql Tools using your credentials(uid,password).
For introduction this might help you :
ADO.NET With MySQL and MSDE
Connection strings for MySQL
Best Regards

Establishing connection with SQL Server 2008

This is a very elementary I realize, I have recently started working with asp.net and establishing a connection with an Access database was simple enough...
string insertedBookTitle;
conn = new OleDbConnection(#"Provider=Microsoft.Jet.OleDb.4.0;
Data Source=" + Server.MapPath("App_Data\\BookRateInitial.mdb"));
conn.Open()
What is the code I use to connect to SQL Server 2008, with the same name (BookRateInitial)?
Kind regards

Here's a sample connection string for standard security (username and pwd):
Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;
You need to do a:
using(SqlConnection conn = new SqlConnection(connectionString))
{
conn.Open();
//Use connection here
using(SqlCommand cmd = conn.CreateCommand())
{
//...
}
}

Connecting to remote SQL Server in C#.Net

I'm trying to connect to the database, and it keeps telling me "invalid instance".
Here's my code:
string connectionString = "Driver={SQL Server};Server=server;Database=db;;Uid=user;Pwd=pass;";
OdbcConnection MyConnection = new OdbcConnection();
MyConnection.ConnectionString = connectionString;
MyConnection.Open();
What is the problem?
Thanks!

Try using this.
Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;
And if you are using MS Sql server, better use with SqlConnection.
using(SqlConnection conn = new SqlConnection(connestionString)){
conn.open();
..
}
http://www.connectionstrings.com/sql-server-2005

Connect ASP.NET WebSite to SQL Database

I am currently trying to establish a connection between an ASP.NET web site project and a Database built by SQL Server 2008 R2.
The way I am required to do so is to use the connectionString from the Web.config page, but I have no idea what value to give it or how to establish a connection using said value. (Using C#)
Any help would be appreciated, as I found next to no information about the subject.
Here is the (default) value that is currently in the Web.config page:
<connectionStrings>
<add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient"/>
</connectionStrings>

Use Configuration Manager:
using System.Data.SqlClient;
using System.Configuration;
string connectionString = ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString;
using(SqlConnection SqlConnection = new SqlConnection(connectionString));
//The rest is here to show you how this connection would be used. But the code above this comment is all you really asked for, which is how to connect.
{
SqlDataAdapter SqlDataAdapter = new SqlDataAdapter();
SqlCommand SqlCommand = new SqlCommand();
SqlConnection.Open();
SqlCommand.CommandText = "select * from table";
SqlCommand.Connection = SqlConnection;
SqlDataReader dr = SqlCommand.ExecuteReader(CommandBehavior.CloseConnection);
}

This article about Connect to SQL Server Using SQL Authentication in ASP.NET will probably give you a better idea of what need to be done.
As a pre check, just check if your mssqlserver services are running.

string connectionString = ConfigurationManager.ConnectionStrings[connectionStringName].ConnectionString;
using (SqlConnection connection = new SqlConnection(connectionString))
using (SqlCommand command = connection.CreateCommand())
{
command.CommandText = commandText;
// command.Parameters.AddWithValue("#param", value);
connection.Open();
command.ExecuteNonQuery(); // or command.ExecuteScalar() or command.ExecuteRader()
}