How to Connect to MySQL Database from ASP.NET Using the Correct Connector?

ASP.NET uses SqlConnection to connect to MySQL

When using SqlConnection to connect to the MySQL database in an ASP.NET application, you may encounter "Keyword not supported: 'driver '"mistake. This is because SqlConnection is specifically designed to connect to SQL Server, while MySQL requires the use of a specific MySQL connector.

In order to solve this problem, you need to perform the following steps:

1. Download the MySQL connector:
   From the MySQL official website (https://dev.mysql .com/downloads/) to download the MySQL connector for .NET.
2. Add a reference:
   In Visual Studio, add the MySQL Connector DLL to the project's references.
3. Use MySqlConnection:
   Replace SqlConnection in the code with MySqlConnection:

MySqlConnection connection = new MySqlConnection(myConnectionString);

4. Use MySqlCommand:
   Replacement SqlCommand provides MySQL database connection information for MySqlCommand:

MySqlCommand command = new MySqlCommand(query, connection);

5. :
   Make sure myConnectionString contains the correct MySQL database connection information, including server address, port, Database name, username and password.

For example:

<connectionStrings>
  <add name="MyConnectionString" 
       connectionString="server=127.0.0.1;port=3306;
       database=gis_server;uid=root;pwd=1234;" />
</connectionStrings>

6. Open connection:
   Open in code MySqlConnection:

connection.Open();

7. Execute query:
   Use MySqlCommand to execute the query and process the results.

MySqlCommand command = new MySqlCommand(query, connection);
MySqlDataReader reader = command.ExecuteReader();

Your code should now be able to successfully connect to the MySQL database and execute queries and process results. For more information, see the MySQL Connector documentation on the MySQL website (https://dev.mysql.com/doc/refman/5.0/es/connector-net-examples-mysqlconnection.html).

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