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Dapper TypeHandler.SetValue () not being called - Stack Overflow
Aug 29, 2014 · The problem in Dapper is the order in which Dapper searches for matching DbType and TypeHandler implementations. Dapper prefers "native" DbType for a Guid (in SqlMapper#LookupDbType). In order to make Dapper use your own implementation, you have to remove the default mapping in addition to adding your own TypeHandler:
Dapper MultiMap doesn't work with splitOn with NULL value
This is "by-design" though I would be ok to revisit it. In particular this behaviour is there to help with left joins. Take this
How to create arguments for a Dapper query dynamically
Feb 28, 2012 · Unfortunately every new version of Dapper seems to break this in a slightly different way in some circumstances. I'm continuing being forced to go back and fix legacy Dapper queries after package updates, and almost every time it's due to the params not working consistently in all scenarios.
c# - Can a Dapper DynamicParameters object be enumerated like …
Sep 25, 2015 · This hasn't happened to me yet -- Rob's first foreach works for me since the Dapper patch, but that may be because I build a single DynamicParameters object per transaction and use it only once. – Charles Burns
c# - Dapper unlimited multi-mapping - Stack Overflow
Dec 4, 2013 · So I have a situation where I have to join (and map) more than 7 entities (which as far as I see is the current limitation of Dapper). This is what I've got so far (pseudo code): using (var connec...
How do I build a dynamic sql query with Dapper.SqlBuilder and …
May 27, 2016 · in the current form the query that gets created for terms "abc" "def" "ghi" is CommandType: Text, CommandText: SELECT * from ThingTags WHERE ( value LIKE @term OR value LIKE @term OR value LIKE @term ) Parameters: Name: term, Value: %ghi%
c# - Dapper.net use query into the Dictionary - Stack Overflow
I want Dapper.Net to return a Dictinary like this: Keys:male,female,nukown Value:10,30,50 I have see How to map to a Dictionary object from database results using Dapper Dot Net?,but that can not work! How to use ToDictionary or other way to implement I want. var myDictionary = sqlConnection.Query(strSql).ToDictionary(??); Thanks!
.net core - dapper left join & mapping query - Stack Overflow
Nov 22, 2021 · Again, like I mentioned, you also have to understand what Dapper does with the data and what SplitOn does. You have told dapper that your data is in the following order <Brand, Campaign> and youre splitting on BrandId meaning, the first columns up to BrandId will be parsed into the Brand class, and the following columns will be parsed into the Campaign class.
Using Dapper with Oracle stored procedures which return cursors
Sep 12, 2011 · Thanks Sam, while we're on the topic of Dapper, can you take a look at the call to conn.Query<Employee>, is there anyway to return N number of results, e.g. conn.Query<Employee, Department>(...) So our current example returns 2 cursors. –
Multiple connection strings in asp.net core using dapper
Sep 15, 2020 · Hi I want to inject 2 database connection strings into the repository constructor. like var myDb = Configuration.GetSection("ConnectionStrings:MyDb").Value; services.AddSingle...