public async Task BulkInsertAsync <T>(IDbConnection connection, IEnumerable <T> data, IDbTransaction transaction = null, int batchSize = 0, int bulkCopyTimeout = 30)
{
var type = typeof(T);
var tableName = SqlMapperExtensions.GetTableName(type);
DataTable dataTables = data.ToDataTable();
using (var bulkCopy = new SqlBulkCopy((SqlConnection)connection, SqlBulkCopyOptions.Default, (SqlTransaction)transaction))
{
bulkCopy.BulkCopyTimeout = bulkCopyTimeout;
bulkCopy.BatchSize = batchSize;
bulkCopy.DestinationTableName = tableName;
bulkCopy.ToColumnMapping <T>();
await bulkCopy.WriteToServerAsync(dataTables);
}
}
