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5 results for: in tag: f#

Dapper dot net query in F#

I'm trying to use Dapper dot net in F# to perform a simple SQLite query. Dapper returns a collection of dynamic objects: using them in C# is straightforward, but from what I understood F# has no dynamic property lookup implementation out-of-the-box....Thi...
dapper f#
asked by Francesco De Vittori

OleDbException on writing to MS Access using Dapper

I'm trying to do an insert with Dapper into my MS Access database, now querying the data works fine but when I do try an insert I get an ...System.Data.OleDb.OleDbException : Data type mismatch in criteria expression...The code is :...let conn = new OleDb...
dapper f# ms-access oledb
asked by Overly Excessive

Dapper column to F# option property

How do I get Dapper to convert data to an F# type with an ...option... property? Simple example:...type SomeType = { Count : int option } connection.QueryAsync<SomeType>(...) ...This throws:...System.InvalidOperationException A parameterless defa...
dapper f# optional
asked by Kasey Speakman

Dapper and Postgres - print queries

I'm using Dapper with Postgres and I would like to log some diagnostics, especially the actual query being run....If I was using SQL Server I'd be doing ...let connection = new SqlConnection(connectionString) connection.StatisticsEnabled = true // run qu...
.net dapper f# npgsql
asked by severin

Dapper generic typehandler for F# Union types

I'm using union types similar to enums on my dapper objects:...type Confidence = | Low | Medium | High type Goal = { Confidence: Confidence ... } ...I've created a custom type handler in order to make it work:...type UnionHandler<'T>...
dapper f#
asked by severin

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