using System; namespace MySql.Data.MySqlClient { using System.Data; public class MySqlCommand : IDbCommand { public MySqlCommand(string commandText) { } public void Cancel() => throw null; public string CommandText { get; set; } public int CommandTimeout { get; set; } public CommandType CommandType { get; set; } public IDbConnection Connection { get; set; } public IDbDataParameter CreateParameter() => throw null; public int ExecuteNonQuery() => throw null; public IDataReader ExecuteReader() => throw null; public IDataReader ExecuteReader(CommandBehavior behavior) => throw null; public object ExecuteScalar() => throw null; public IDataParameterCollection Parameters { get; } public void Prepare() => throw null; public IDbTransaction Transaction { get; set; } public UpdateRowSource UpdatedRowSource { get; set; } public void Dispose() => throw null; } public class MySqlHelper { public static object ExecuteScalar(string connectionString, string commandText) { return null; } } } namespace Microsoft.ApplicationBlocks.Data { class SqlHelper { public static object ExecuteScalar(string connectionString, System.Data.CommandType ct, string commandText) { return null; } } } namespace SqlClientTests { using System.Data; using System.Data.SqlClient; using MySql.Data.MySqlClient; using Microsoft.ApplicationBlocks.Data; class TestClass { public static void TestMethod(string text) { System.Data.IDbCommand command = new SqlCommand(text); command = new MySqlCommand(text); command.CommandText = text; new MySqlCommand(text).CommandText = text; new SqlDataAdapter(text, string.Empty); MySqlHelper.ExecuteScalar("", text); SqlHelper.ExecuteScalar("", System.Data.CommandType.Text, text); } } }