GZDBHelper连接SQL Server 数据库

 private void button1_Click(object sender, EventArgs e)
{
    // 数据库服务器
    string server = "***";
    // 用户名
    string user = "***";
    // 密码
    string pwd = "***";
    // 数据库名称
    string dbname = "master";
    // 生成数据库连接字符串
    var connStr = GZDBHelper.ConnectionStrings.BuildMSSQLConnectionString(server, dbname, user, pwd);
    // 创建数据库对象
    var db = GZDBHelper.DatabaseFactory.CreateDatabase(connStr, GZDBHelper.ConnectionStrings.ProviderNames.ProviderNameForMSSql, null);
    // 执行SQL语句
    DataTable data = db.GetTable("select database_id,name from sys.databases", "databases", null);

}

var db = GZDBHelper.DatabaseFactory.CreateDatabase(System.Data.SqlClient.SqlClientFactory.Instance, connStr, null);