class MyPersistableObject:IEnumerable{
	public string MyStringField;
	public DateTime MyDateField;
	public int MyIntField;

	//Count and order of returns must match column order in SQL INSERT
	public IEnumerator GetEnumerator(){
		yield return MyDateField;
		yield return MyDateField;
		yield return MyStringField;
		yield return (ushort)MyIntField;
	}
}

//... somewhere elsewhere ...
var list=new List<MyPersistableObject>();

// fill the list to insert
list.Add(new MyPersistableObject());

var command=connection.CreateCommand();
command.CommandText="INSERT INTO test (date,time,str,int) VALUES @bulk";
command.Parameters.Add(new ClickHouseParameter{
	ParameterName="bulk",
	Value=list
});
command.ExecuteNonQuery();

// fill the list to insert
list.Add(new MyPersistableObject());

var command=connection.CreateCommand();
command.CommandText="INSERT INTO test (date,time,str,int) VALUES @bulk";
command.Parameters.Add(new ClickHouseParameter{
	ParameterName="bulk",
	Value=list
});
command.ExecuteNonQuery();