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C# Winforms connection to MySQL AWS Database

I'm trying to connect a winforms .net application with an AWS RDS MySQL database but I am having difficulty making the connection. I have read a lot of material about connecting through Microsoft SQL database and through Elastic Beanstalk but I haven't come across the answer I'm looking for... possibly because I'm a noob.
I've looked through a few of these questions:
How to connect to MySQL Database?
https://dev.mysql.com/doc/dev/connector-net/8.0/html/T_MySql_Data_MySqlClient_MySqlConnection.htm
using MySql.Data.MySqlClient;
string connection = "server=localhost; Database=database_URL; User Id=admin;
Password=myPassword";
myConn.Open();
MessageBox.Show("Success");
I'm getting the following error message:
MySql.Data.MySqlClient.MySqlException: 'Unable to connect to any of the specified MySQL hosts.'
Is there something simple that I'm missing? I have copied the database endpoint into the database_URL location. My user id and password are correct. My database is setup on AWS as a MySQL database.

Checking back with ConnectionStrings makes it appear as if your parameter-names are wrong. 'username' should be 'uid' and 'password' should be 'pw'.
In any case I'd suggest using the MySqlConnectionStringBuilder-class to construct your connection string.
var connectionStringBuilder = new MySqlConnectionStringBuilder
{
Server = "<Instance_Ip>",
UserID = "root",
Password = "<Password>",
Database = "<Database_Name>"
};
using (var conn = new MySqlConnection(connectionStringBuilder.ToString()))

The error message is given because can't connect to the host.
In your connection string is given the localhost as the server but your database is on cloud (AWS), so it means that you must specify the database's IP or the domain name pointing to that database, not the local (local means that is in your computer). e.g.
string conn = "server=192.168.0.7; Database=database_name; User Id=admin;
Password=myPassword";
Note that the server IP is provided by AWS, and you'd make sure that ports are enable. The most common port for MySQL is 3306.
Best regards.

Try this,
//This is my connection string i have assigned the database file address path
string MyConnection2 =
"host='localhost';database='databasename';username='myusername';password='mypassword'";
//This is my insert query in which i am taking input from the user through windows forms
string Query = "Your query";
//This is MySqlConnection here i have created the object and pass my connection string.
MySqlConnection MyConn2 = new MySqlConnection(MyConnection2);
//This is command class which will handle the query and connection object.
MySqlCommand MyCommand2 = new MySqlCommand(Query, MyConn2);
MySqlDataReader MyReader2;
MyConn2.Open();
MyReader2 = MyCommand2.ExecuteReader();
// Here our query will be executed and data saved into the database.
MessageBox.Show("Save Data");
while (MyReader2.Read())
{
}
MyConn2.Close();

Using Oledb connection string for Localhost c#

When use Oledb c# connection
I noticed that a lot connection using file.
But how to connect to localhost using oledb?
I created database and tables using Microsoft SQL Server Management that connect with SQL Express and using window authentication
When using this function i don't know how should convert to connect to localhost
//Want the connString to connect localhost instead of file
public static string connString = #"Provider=Microsoft.JET.OLEDB.4.0;data source=" + Path + "\\database\\errDB.mdb";
public static OleDbConnection connection;
public myFunction()
{
string sqlString = "SELECT name,contact,accessLevel,Crudential_ID FROM errors where Crudential_ID =#ID";
connection = new OleDbConnection(connString);
OleDbCommand command = new OleDbCommand(sqlString, connection);
//Open connection
connection.Open();
command.Parameters.Add("#ID", OleDbType.VarChar);
command.Parameters["#ID"].Value = "test";
//Read from database
OleDbDataReader reader = command.ExecuteReader();
if(reader.HasRows)
{
.....
}
connection.Close();
}

connectionstrings.com - true to its name - is indispensable when you frequently need to construct connection strings. For your specific case, this would be the relevant section.
Based on that, your connection string should look something like this:
Provider=SQLNCLI11;Server=.\SQLEXPRESS;Database=SOMEDATABASE;Trusted_Connection=yes;
To break it down:
SQLNCLI11 is the SQL Native Client OLEDB provider. You can see available providers in SQL Management Studio, under Server Objects > Linked Servers > Providers.
.\SQLEXPRESS is your servername and instance. The . is shorthand for localhost (you can also use localhost if you prefer), and SQLEXPRESS is the default instance name that SQL Express installs under.
SOMEDATABASE - whatever your database name is.
Trusted_Connection=yes - Use windows authentication. Sometime you see it as Integrated Security=SSPI. They are one and the same.

If you are using SQL Express then I would suggest using a System.Data.SqlClient.SqlConnection object to make your connection. You will only need your server name to connect.
Server=ServerName\SQLEXPRESS;Database=Blah;User ID=user;Password=pw

Connecting to HIVE using a .Net application

I am trying to create a POC for one of my projects which would allow me to connect to HIVE using an ODBC connection string.
I have been successful in using a DSN method to connect to HIVE. But this doesnt work for me cause I would need to allow create connections during run time where the connection source can be changed from one host to another.
I am using the following connection string (using the Microsoft ODBC driver) which I took from http://www.codeproject.com/Tips/738141/How-to-Communicate-to-Hadoop-via-Hive-using-NET-Cs
var conn = new OdbcConnection {
ConnectionString = #
"DRIVER={Microsoft Hive ODBC Driver};
Host=<IP>;
Port=10000;
User Name=root;Password=<PWD>;
Database=default;
HiveServerType=2;
ApplySSPWithQueries=1;
TrustedCerts=C:\Program Files\Microsoft Hive ODBC Driver\lib\cacerts.pem;
AsyncExecPollInterval=100;
AuthMech=0;
CAIssuedCertNamesMismatch=0;"
}
using(conn) {
conn.Open();
DataTable dt = new DataTable();
OdbcCommand cmd = conn.CreateCommand();
cmd.CommandText =
"SELECT * FROM categories;";
DbDataReader dr = await cmd.ExecuteReaderAsync();
dt.Load(dr);
}
When I try to open the connection, I get a network timeout.
ERROR [HY000] [Microsoft][HiveODBC] (34) Error from Hive: ETIMEDOUT.
I am not sure how to fix this up.

I found the solution for it. you are missing user name, pwd from your connection string change it as follow:
ConnectionString = #"
Dsn=Sample Microsoft Hive DSN;
applysspwithqueries=1;asyncexecpollinterval=100;
authmech=3;binarycolumnlength=32767;
caissuedcertnamesmismatch=0;
decimalcolumnscale=10;
gettableswithquery=0;
host=*******;
port=10000;
rowsfetchedperblock=10000;
trustedcerts={C:\Program Files (x86)\Microsoft Hive ODBC Driver\lib\cacerts.pem};
Schema=default;
uid=************;
pwd=************"

I found it working after going through the information in this blog post.
This is the connection string I used.
var connectionstring = #"DRIVER={Microsoft Hive ODBC Driver};
Host=******;
Port=10000;
Schema=default;
HiveServerType=2;
ApplySSPWithQueries=1;
AsyncExecPollInterval=100;
HS2AuthMech=2;
UserName=******;
trustedcerts={C:\Program Files\Microsoft Hive ODBC Driver\lib\cacerts.pem}";

OdbcConnection DataName and DataSource not found

I am using ASP.net to create a web app. I use OdbcConnection to connect to MySQL. But it seems to create the object but not it doesn't fill up the datasource and dataname fields. I have the famous error
[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
Here is my code failing:
OdbcConnection MyConnection;
string MyConString = "DRIVER={MySQL ODBC 5.1 Driver};" + "SERVER=localhost;" + "DATABASE=test;" + "UID=debug_user;" + "PASSWORD=password;" + "OPTION=3";
MyConnection = new OdbcConnection(MyConString);
MyConnection.Open();
I also use to have a connectionstring in my web.config:
<connectionStrings>
<add name="UTRN_DB_ConnectionString" connectionString="DRIVER={MySQL ODBC 5.1 Driver};Database=cjr_db;Server=localhost;UID=cjr_db_user;PWD=password;"/>
</connectionStrings>
I have the driver set in my Data Source Administrator with MySQL. I've uninstall and reinstall everything. I keep getting this error. I Just don't understand why I get this error while I still specify everything (port, etc...) in the connection string and it keep failing
EDIT:
Here is my web.config
<connectionStrings>
<add name="UTRN_DB_ConnectionString" connectionString="Driver={MySQL ODBC 5.1 Driver};Database=cjr_db;Server=localhost;Uid=cjr_db_user;Pwd=password;providerName=(System.Data.Odbc)"/>
</connectionStrings>
and this is how i read it:
string conString = WebConfigurationManager.ConnectionStrings["UTRN_DB_ConnectionString"].ConnectionString;
string conString2 = ConfigurationManager.ConnectionStrings["UTRN_DB_ConnectionString"].ConnectionString;
using (OdbcConnection connection = new System.Data.Odbc.OdbcConnection(conString2))
{
connection.Open();
...
}

The connection string must contain Provider and Data Source as:
string MyConString = "Provider=(Data Provider);Data Source=(Path of source file)"

You have some spelling mistakes in your connection string in the web.config file. It should be Driver instead of DRIVER, Pwd instead of PWD, Uid instead of UID and so on.
Please change your code to the one below
Driver={SQL Server};Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;

I found the answer of my problem here:
tadaaaam
Basically, you have to seek the difference of your 64bits and 32bits installed on your machine. By default VS is seeking for the 32. And in your ODBC Sources Manager it shows up the 64.
So you either configure your project to seek for the 64 OR install the 32 bits version of MySQL ODBC.

MissingManifestResourceException through SmartDeviceProject?

I am new to SmartDeviceProject. So When i try to connect MySQL to my project, MissingManifestResourceException through in Connection.open in below code?.
string connectionString = "server=192.168.1.100;database=mcubic;User Name=mcubic;Password=mcs#2011$;";
string query = "select b.Outlet_Master_Name from mcs_user_outlet a,outlet_master b where a.Mcs_User_Outlet_User_Id=3 and a.Mcs_User_Outlet_Outlet_Id = b.Outlet_Master_Id";
MySqlConnection connection = new MySqlConnection(connectionString);
MySqlCommand command = new MySqlCommand(query, connection);
connection.Open();
MySqlDataReader Reader = command.ExecuteReader();
while (Reader.Read())
{
comboBox1.Items.Add(Reader[0].ToString());
}
connection.Close();
How do i solve this,. I am imported MySql.Data.CF.dll for this project.

Via Krish Kapadia from MSDN forums:
Solution :
MySql's version 5.2.7.0 is the stable version. I use dll of this version. Other versions have many problems. so first I download dll of that version from mysql site.
here is the link :
http://dev.mysql.com/downloads/connector/net/5.2.html
I have inserted one entry in 'mysql.user' table in which hostname will be '%' (means any user can connect to mysql). If you don't want to insert entry with hostname then you have to insert for all ip addresses who should be allowed to connect to mysql.
After inserting entry in 'mysql.user', I restarted MySQL service.
And then trying to connect to mysql and Connected....
source:
http://social.msdn.microsoft.com/Forums/eu/netfxcompact/thread/66f6386a-9963-4c2f-8d39-1c507a26a6c7