一.调用存储过程 1.不带参数 CREATE PROCEDURE ProcedureWithoutParams AS SELECT * FROM ORDER; 调用db.ProcedureWithoutParams(); 2.带参数 CREATE PROCEDURE ProcedureWithoutParams @ORDERCODE VARCHAR(MAX) AS SELECT * FROM ORDER WHERE ORDERCODE=@ORDERCODE; 调用db.ProcedureWith…
simple.data是一个轻量级的.动态的数据访问组件,支持.net4.0. 1.必须条件和依赖性: v4.0 or greater of the .NET framework, or v2.10 or greater of the Mono framework 项目中引用 Simple.Data.Core A Simple.Data adaptor A Simple.Data provider 2.PM> Install-Package Simple.Data.Oracle Simple.D…
IEnumerable接口是非常的简单,只包含一个抽象的方法GetEnumerator(),它返回一个可用于循环访问集合的IEnumerator对象. IEnumerator是一个真正的集合访问器,没有它,就不能使用foreach语句遍历集合或数组,因为只有IEnumerator对象才能访问集合中的项. using System; using System.Collections; // Simple business object. public class Person { public P…
As Ed Essey explained in Partitioning in PLINQ, partitioning is an important step in PLINQ execution. Partitioning splits up a single input sequence into multiple sequences that can be processed in parallel. This post further explains chunk partition…
IEnumerator和IEnumerable 从名字常来看,IEnumerator是枚举器的意思,IEnumerable是可枚举的意思. 了解了两个接口代表的含义后,接着看源码: IEnumerator: public interface IEnumerator { // Interfaces are not serializable // Advances the enumerator to the next element of the enumeration and // returns…
DbContextScope A simple and flexible way to manage your Entity Framework DbContext instances. DbContextScope was created out of the need for a better way to manage DbContext instances in Entity Framework-based applications. The commonly advocated met…
Instead of defining what is design pattern lets define what we mean by design and what we mean by pattern. According to me design is blue print or sketch of something so it can be defined as creation of something in mind. Moving to pattern, we can de…
Recently I built plug-ins support to my TemperatureStation IoT solution web site. The code for .NET Core is different from what we have seen on full .NET Framework (application domains etc) but there’s still nothing complex. This blog post describes…
In the previous post we looked at how many-to-many relationships can be mapped using a join entity. In this post we’ll make the navigation properties to the join entity private so that they don’t appear in the public surface of our entity types. We’l…
IEnumerable接口 // Exposes the enumerator, which supports a simple iteration over a non-generic collection. public interface IEnumerable {// Returns an enumerator that iterates through a collection. IEnumerator GetEnumerator(); } IEnumerator接口 // Suppo…
原文链接:http://www.c-sharpcorner.com/UploadFile/19b1bd/design-patterns-simplified-part3-factory/ Design Patterns Simplified - Part 3 (Simple Factory)[设计模式简述--第三部分(简单工厂)] This article explains why and how to use the Simple Factory Design Pattern in softw…
开启阅读模式 WATERHAMMER A COMPLEX PHENOMENON WITH A SIMPLE SOLUTION Waterhammer is an impact load that is the most misunderstood force known to pressure transducers today. A waterhammer is created by stopping and/or starting a liquid flow suddenly. The re…
Il est toutefois vraiment à partir www.runmasterfr.com/free-40-flyknit-2015-hommes-c-1_58_59.html de la saison, bien que ceux-ci comprennent sans aucun doute l'athlète d'entrée destiné à «2016 chaussure de course sur la saison. «Il y a du plaisir à c…
A Simple Tree Problem Time Limit: 3 Seconds Memory Limit: 65536 KB Given a rooted tree, each node has a boolean (0 or 1) labeled on it. Initially, all the labels are 0. We define this kind of operation: given a subtree, negate all its labels. An…
A Simple Nim Problem Description Two players take turns picking candies from n heaps,the player who picks the last one will win the game.On each turn they can pick any number of candies which come from the same heap(picking no candy is not allowed)…
