Dapper result to dictionary

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August undefined, 2024

http://duoduokou.com/csharp/39767087418262716108.html WebI have a dynamic result from Dapper query that contains records like this: {DapperRow, billing_currency_code = 'USD', count(*) = '6'} I'm able to access 'USD' by using rowVariable.billing_currency_code. ... If the column name genuinely is "count(*)", then you can cast the row to a dictionary:

C# Dapper QueryMultiple（多对多）中首次选择的访问结果_C#_.net_Dapper …

WebJan 19, 2024 · johnnyasantoss changed the title Dapper isn't fetching parameters out of IDictionary Dapper isn't fetching parameters of a IDictionary on Jan 19, 2024 johnnyasantoss closed this as completed on Jan 19, 2024 NickCraver mentioned this issue on May 4, 2024 WebC# 如何使用Dapper.Net从数据库结果映射到Dictionary对象？,c#,asp.net,dapper,C#,Asp.net,Dapper,如果我有一个简单的查询，例如： string sql = "SELECT UniqueString, ID FROM Table"; 我想将其映射到字典对象，例如： Dictionary myDictionary = new Dictionary(); Dictionary … email to extend work from home

Custom Columns Mapping. Go beyond the “same name” mapping …

WebFeb 28, 2012 · 3 Answers Sorted by: 166 Yes: var dbArgs = new DynamicParameters (); foreach (var pair in args) dbArgs.Add (pair.Key, pair.Value); Then pass dbArgs in place of args: var stuff = connection.Query (query, dbArgs); Alternatively, you can write your own class that implements IDynamicParameters. WebJul 9, 2024 · The solution is to do something like this. You need to add the return type of the query to dynamic and then cast each row into an IDictionary. Once you do that, you'll be able to get the value for your query by key like so: WebJun 17, 2024 · Solution 1. Assuming that you are connecting to an SQL database. public List< string, object >> DapperSelect (string connectionString, string query, object parameters) { using (var connection = new SqlConnection (connectionString) ) { var result = connection. Query (query, parameters). ToList () ; return result. ford scholarship ffa

How to use Dapper to automatically map remaining columns to dictionary?

WebMar 21, 2024 · DapperRow happens to implement IDictionary. Therefore: In version 1 of your code you can cast the List directly to IEnumerable. Version 2 you are calling ToList, but because you haven't got the exact type, you end up with a call to ToList.WebMay 30, 2024 · The DapperRow object is designed to share a lot of state between rows. For example, if you fetch 40 rows, the column names etc are only stored once. If we used ExpandoObject, this would need to be configured per row. Hence, the use of DapperRow as the behind-the-scenes implementation detail is a deliberate efficiency thing.WebMap your query to model properties, select it to dictionary Dictionary dictionary = connection.Query (@" SELECT routine_name AS RoutineName, created AS Created, modified AS Modified FROM PROCEDURES ").ToDictionary (m => m.RoutineName, m => m); Share Improve this answer Follow answered Jun 8, 2015 at …WebC# Dapper QueryMultiple（多对多）中首次选择的访问结果,c#,.net,dapper,C#,.net,Dapper,我正在尝试将多对多关系映射到一个具有角色列表的用户我试着回答这个问题，但它给了我多个用户，每个用户都有一个角色相反，我尝试使用QueryMultiple语句。 WebI can have an instance of MyDto populate the first two properties based on convention, but I'm not sure how to tell Dapper to map all remaining columns into the dictionary. connection.Query ("Get_Something", commandType: CommandType.StoredProcedure, param: parameters); The stored procedure returns the … ford schloss holteWebApr 23, 2024 · For LEFT JOIN you will get a null item in the location list. Remove them by var items = lookup.Values; items.ForEach (x => x.Locations.RemoveAll (y => y == null)); I can't compile this unless I have a semicolon at the end of line 1 and remove the comma before the 'AsQueryable ()'. email to fax outlook south africa

"WebC# Dapper QueryMultiple（多对多）中首次选择的访问结果,c#,.net,dapper,C#,.net,Dapper,我正在尝试将多对多关系映射到一个具有角色列表的用 … " - Dapper result to dictionary

Dapper result to dictionary

c# - How to return dynamic values in Dapper - Stack Overflow

WebThis returns a Dictionary. The key for the dictionary is each item.Id property. The key/value overload: var dictionary = itemList.ToDictionary ( item => item.Id , item => item.Name ); This overload creates a Dictionary using the specified item.Id for key and item.Name for value. WebC# Dapper QueryMultiple（多对多）中首次选择的访问结果,c#,.net,dapper,C#,.net,Dapper,我正在尝试将多对多关系映射到一个具有角色列表的用户我试着回答这个问题，但它给了我多个用户，每个用户都有一个角色相反，我尝试使用QueryMultiple语句。

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WebMay 30, 2024 · The DapperRow object is designed to share a lot of state between rows. For example, if you fetch 40 rows, the column names etc are only stored once. If we used ExpandoObject, this would need to be configured per row. Hence, the use of DapperRow as the behind-the-scenes implementation detail is a deliberate efficiency thing. WebJan 18, 2012 · Please note that my column names in the table are different from the property name of the class to which I am trying to map the data which I got from the query result. var sql = @"select top 1 PersonId,FirstName,LastName from Person"; using (var conn = ConnectionFactory.GetConnection ()) { var person = conn.Query (sql).ToList (); …

WebMay 1, 2024 · 2 Answers Sorted by: 1 Would this meet your needs? var dict = connection.Query> (sql, (s, i) => ValueTuple.Create (s, i), null, null, true, "OrderID") .GroupBy (t => t.Item1, t => t.Item2, (k, v) => new {Key = k, List = v}) .ToDictionary (kv => kv.Key, kv => kv.List); Fiddle Share Improve this answer Follow WebC# 使用Dapper中的参数执行存储过程,c#,sql,stored-procedures,data-access-layer,dapper,C#,Sql,Stored Procedures,Data Access Layer,Dapper,我正在使用一个带有DAL的微型ORM（谢谢，很棒的项目），由于某种原因，我无法使用输入参数执行存储过程在一个示例服务中，我有以下代码： public void GetSomething(int somethingId) { …

WebNov 15, 2014 · According to the Dapper documentation, you can get a dynamic list back from dapper using below code : var rows = connection.Query ("select 1 A, 2 B union all select 3, 4"); ( (int)rows [0].A) .IsEqualTo (1); ( (int)rows [0].B) .IsEqualTo (2); ( (int)rows [1].A) .IsEqualTo (3); ( (int)rows [1].B) .IsEqualTo (4); WebJan 13, 2024 · It passes the mapped objects to the map function. Dapper maps the order columns to a new Order object for every row – which is why you need to de-dupe and keep track of unique Order objects with a Dictionary. This results in the following Order object with an array of OrderLine objects:

WebNov 20, 2015 · We need to create a local dictionary and iterate over that collection. var myDictionary = new Dictionary (); IEnumerable myCollection = new List (); foreach (var item in myCollection) { // This might be fun if you get two of the same object in the collection.

WebHow to turn dapper result into a dictionary using result mapping by Imperial x using (var connection = new … email to fax service australiaWebSep 14, 2024 · This seems to point out a bug (or shortcoming) in the Dapper processing of parameters as Dictionary. It makes logical sense to me that I should be … email to fax outlook freeWebMap your query to model properties, select it to dictionary Dictionary dictionary = connection.Query (@" SELECT routine_name AS RoutineName, created AS Created, modified AS Modified FROM PROCEDURES ").ToDictionary (m => m.RoutineName, m => m); Share Improve this answer Follow answered Jun 8, 2015 at … email to fax online freeWebJun 13, 2013 · try { using (var connection = ...) { connection.Open (); const string masterSelectQuery = "SELECT Id as [fileId], FileName as [fileName], Frequency as [frequency], Scheduled_Time as scheduledTime FROM MASTER_TABLE"; masterTableList = connection.Query (masterSelectQuery).ToList ();//Working fine const string … email to fax machine softwareWebHow to turn dapper result into a dictionary using result mapping by Imperial x using (var connection = new … ford scholarships 2021WebOct 22, 2024 · 3 Answers. Cast your row to dictionary and access by column name. var data = (IDictionary)row; object value = data ["prodname"]; You seem to be missing the most compelling feature of Dapper; it will map the Products for you. And if your column names in the db don't match then you alias them in the query: email to fax services email to follow up previous email