我可以从 Dapper 查询中获取字段结构吗？

Question

I've been looking through the source code, but there is a fair amount going on for such a small ORM. Is there any way to retrieve the field structure of a query returned by Dapper after calling .Query()? Essentially I need the same data as returned by a DataReader when you call GetSchemaTable().

Answer 1

This can be done as follows:

Fetch the reader using either of the following calls:

IDataReader dr = _connection.ExecuteReader(sql)

or

IDataReader dr = _connection.GetStream(sql)

Now you can call dr.GetSchemaTable() to get the relevant schema DataTable In fact you may typecast the same to relevant DbDataReader type like SqlDataReader or OracleDataReader in case you want to utilize an overload of a GetSchemaTable()