dapper

Is there a plan to make Dapper.net compatible with IQueryable interfaces? If not, what's the workaround to use Dapper with "Expression Trees" filters? No, there are no plans to do this. It is far far outside what dapper tries to do. So far that I would say it is antithetical. Dapper core tries to be the friend to those who love their SQL. You can get IQueryable from IEnumerable using the built-in extension method AsQueryable in System.Linq namespace public IQueryable<Order> GetOrdersAsQuerable() { IEnumerable<Order> qry= GetOrders(); //using Query<T> //use the built-in extension method

I've been trying unsuccessfully now for a while to use an IEnumerable<string> with a WHERE IN clause in Dapper. In the documentation, it does say that IEnumerable<int> is supported for use in a WHERE IN but I can't even get that to work. Dapper allow you to pass in IEnumerable<int> and will automatically parameterize your query. The error message I keep receiving is an Sql syntax error. Incorrect syntax near ','. I've put together some test code that I hope will demonstrate what I am trying to achieve. string connString = "Server=*.*.*.*;Database=*;User Id=*;Password=*;"; string sqlStringIn =

1、VS2015直接使用nuget包搜索Dapper，安装时报错：显示版本不兼容。 于是使用命令安装dapper低版本。 步骤： 打开项目，vs工具---Nuget包管理器--程序包管理器控制台 然后在控制台里面输入命令： Install-package dapper -Version 1.50.2 安装成功。 来源： https://www.cnblogs.com/zl181015/p/11776663.html

I'm attempting to use a CTE with Dapper and multi-mapping to get paged results. I'm hitting an inconvenience with duplicate columns; the CTE is preventing me from having to Name columns for example. I would like to map the following query onto the following objects, not the mismatch between the column names and properties. Query: WITH TempSites AS( SELECT [S].[SiteID], [S].[Name] AS [SiteName], [S].[Description], [L].[LocationID], [L].[Name] AS [LocationName], [L].[Description] AS [LocationDescription], [L].[SiteID] AS [LocationSiteID], [L].[ReportingID] FROM ( SELECT * FROM [dbo].[Sites] [1_S

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a stored procedure that has a parameter with no default value, but it can be null. But I can't figure out how to pass null with Dapper. I can do it just fine in ADO. connection.Execute("spLMS_UpdateLMSLCarrier", new { **RouteId = DBNull.Value**, CarrierId = carrierID, UserId = userID, TotalRouteRateCarrierId = totalRouteRateCarrierId }, commandType: CommandType.StoredProcedure); Exception: System.NotSupportedException was caught Message=The member RouteId of type System.DBNull cannot be used as a parameter value Source=Dapper

I have a stored procedure InsertCars which accepts list of user defined table type CarType . CREATE TYPE dbo.CarType AS TABLE ( CARID int null, CARNAME varchar(800) not null, ); CREATE PROCEDURE dbo.InsertCars @Cars AS CarType READONLY AS -- RETURN COUNT OF INSERTED ROWS END I need call this stored procedure from Dapper. I googled it and found some solutions. var param = new DynamicParameters(new{CARID= 66, CARNAME= "Volvo"}); var result = con.Query("InsertCars", param, commandType: CommandType.StoredProcedure); But I get an error: Procedure or function InsertCars has too many arguments

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: What is the best way to write a query with IN clause using Dapper ORM when the list of values for the IN clause is coming from business logic? For example let's say I have a query: SELECT * FROM SomeTable WHERE id IN (commaSeparatedListOfIDs) The commaSeparatedListOfIDs is being passed in from business logic and it can be any type of IEnumerable(of Integer) . How would I construct a query in this case? Do I have to do what I've been doing so far which is basically string concatenation or is there some sort of advanced parameter mapping