Testing an Entity Framework database connection

Question

I have an app that connects to a MYSQL database through the entity framework. It works 100% perfectly, but I would like to add a small piece of code that will test the conne

Answer 1

I am using the following code for MS SQL connection. Maybe, it will be useful for MySQL too. You don’t even need to use an EF or EF Core.

    public bool IsDbConnectionOK()
    {
        SqlConnectionStringBuilder conStr = new SqlConnectionStringBuilder
        {
            DataSource = ButtonServerName.Text,  // <-- My Form Elements
            InitialCatalog = ButtonDBName.Text, // <-- My Form Elements
            UserID = EditUserName.Text, // <-- My Form Elements
            Password = EditPassword.Text, // <-- My Form Elements
            IntegratedSecurity = false,
            ConnectTimeout = 30
        };

        string connectionstring = conStr.ToString();

        try
        {
            using (System.Data.SqlClient.SqlConnection connection = new System.Data.SqlClient.SqlConnection(connectionstring))
            {
                connection.Open();
                return true;
            }
        }
        catch (System.Data.SqlClient.SqlException ex)
        {
            MessageBox.Show(ex.Message + Environment.NewLine +
                "Error line: " + ex.LineNumber + Environment.NewLine +
                "Procedure name: " + ex.Procedure);
            return false;
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
            return false;
        }
    }