[Category("Grouping Operators")] [Description("This sample uses group by to partition a list of numbers by " + "their remainder when divided by 5.")] public void DataSetLinq40() { var numbers = testDS.Tables["Numbers&quo…

原文地址:101 LINQ Samples in C# Part1 - Restriction Operators Part2 - Projection Operators Part3 - Partitioning Operators Part4 - Ordering Operators Part5 - Grouping Operators Part6 - Set Operators Part7 - Conversion Opertions Part8 - Element Part9 - Gen…

Restriction Operators Where - Simple public void Linq1() { , , , , , , , , , }; var lowNums = from n in numbers select n; Console.WriteLine("Numbers < 5:"); foreach (var x in lowNums) { Console.WriteLine(x); } } Where - Simple public void Lin…

Grouping Operators Description GroupBy GroupBy操作返回根据一些键值进行分组,每组代表IGrouping<TKey,TElement>对象 ToLookup ToLookup is the same as GroupBy; the only difference is the execution of GroupBy is deferred whereas ToLookup execution is immediate. IList<Stude…

1. 在使用 Regex Filtering Interceptor的时候一个属性是excludeEvents 当它的值为true 的时候,过滤掉匹配到当前正则表达式的一行 当它的值为false的时候,就接受匹配到正则表达式的一行 Property Name Default Description type – The component type name has to be regex_filter regex ”.*” Regular expression for matching aga…

翻译自官网flume1.8用户指南,原文地址:Flume 1.8.0 User Guide 篇幅限制,分为以下5篇: [翻译]Flume 1.8.0 User Guide(用户指南) [翻译]Flume 1.8.0 User Guide(用户指南) source [翻译]Flume 1.8.0 User Guide(用户指南) Sink [翻译]Flume 1.8.0 User Guide(用户指南) Channel [翻译]Flume 1.8.0 User Guide(用户指南) Proces…

参考地址:https://msdn.microsoft.com/en-us/library/bb130306(v=vs.120).aspx You can query for bugs, tasks, other types of work items, and links between work items by using one of the WorkItemStore.Query methods or a Query object. These queries use the work…

Part 5: Parallel Programming In this section, we cover the multithreading APIs new to Framework 4.0 for leveraging multicore processors: Parallel LINQ or PLINQ The Parallel class The task parallelism constructs The concurrent collections SpinLock and…

The Reactive Extensions (Rx) is a library for composing asynchronous and event-based programs using observable sequences and LINQ-style query operators. https://archive.codeplex.com/?p=rx A brief intro The Reactive Extensions (Rx) is a library for co…

regexprep Replace text using regular expression collapse all in page Syntax newStr = regexprep(str,expression,replace) example newStr = regexprep(str,expression,replace,option1,...optionM) example Description example newStr = regexprep(str,expression…