linq extension methods

Using System;Using System.Collections.Generic;Using System.Linq;Using System.Text;Namespace ConsoleApplication17{public static Class STSD{public static list{Listforeach (T r in list){if (Funwhere (R)){Mlist.add (R);}}return mlist;}}Class Program{static void Main (string[] args){List{"3", "9", "32", "7"};Strlist= strlist.mywhereStrlist = Strlist.where (a=> convert.toint32 (A.tochararray () [0]. ToString ())) (Strlist = Strlist.where (A = = {return Convert.ToInt32 (A.tochararray () [0]. ToString (

Question 1: public void AsycStartDispatcher(Dispatcher dispatcher) {var thread = new Thread( (input) => {var dispatch = input as Dispatcher;if (dispatch != null) dispatch.Start(); }); thread.Start(dispatcher); } Consider the above Code. We can see that we have written so many lines of code. In fact, it is just a simple task to complete, that is, to execute dispatch in a separate thread.

Remember the first time when using Dotween, found that the easing method can be directly used in the Transform object call to, was shocked to (that is the C # small white one). All right, come on, let's learn about this feature of C #-the extension method today.Introduction to extension methodsExtension methods enable you to "add"

' t explain how many times he needs to convert a XmlDocument into a XDocument and vice versa for LINQ u Se. The following handy extension methods is intended to save huge time.3. Between () –type:daytimeIt is used to check if a date is between the dates.4. Calculateage () –type:datetimeAs the name suggests, it's used for calculating.5. Workingday ()/isweekend ()

Recently, because of a project, you need to read the data into memory and do something similar to SQL. The first thing to think about is the need to use LINQ to achieve these statistical analyses. In the process of using LINQ, we find that many of the things called extension methods help us to do some count\max\min and

Some useful extension methods on ilist By Peter Bromberg Instantly DTSearch terabytes of popular data types; hundreds of reviews, etc .! Often I need to convert a list of a certain type to a CSV string, or to a datatable. Here I provide four extension methods: 1) public static datatable

The auxiliary methods in MVC are similar to the server controls in ASP. NET and are used to generate specific HTML code. MVC provides three helper classes: htmlhelper for generating HTML elements, ajaxhelper for Ajax processing, and urlhelper for generating URLs. These three helper classes are provided externally through the Ajax, HTML, and URL attributes of viewpage. Because views are inherited from viewpage, we can directly use these three attribute

image is framed, drawfrontpoint indicates that the foreground is drawn on the image, and drawbackgroundpoint indicates that the background is painted on the image. Editmode is represented by enumerative editmode. editmode is stored in the editmodevalue attribute: Public Enum editmode{None,Drawregion,Drawfrontpoint,Drawbackgroundpoint} A simple requirement is to associate the editmodevalue with the status of several buttons on the right. For example, when editmodevalue is drawregio

Extension methods are defined as static methods, but they are called through the instance method syntax. Their first parameter specifies the type of the method to act on, and the parameter is prefixed with the this modifier. The extension method is in the range only when you use the using command to explicitly import t

Unity built-in components are basically not inheritable. Some of the features that are commonly used but are not defined by the existing API can be implemented using the C # Extension class method (note that the extension method does not pass a reference to a value type, so the original object cannot be modified, and passing a large value type can cause performance problems). Here are some of the more pract

out a solution I: Chinese Processing C # How to extend a string C # basic concepts of extensions 3: Common extensions of byte C # How to Use random extensions C # extensions 5: dictionary C # extensions 6: whereif extensions C # extensions 7: General extensions of isbetween C # How to expand: Basic Concepts C # how to extend the expression Advanced C # How to expand an in extension C # How to Use the

This article mainly introduces the C # extension method, combined with the example form analysis of C # extension method of the function, the use of methods and related considerations, the need for friends can refer to the following This example describes the C # extension method. Share to everyone for your reference,

-extension methods, instructions: extension methods enable you to "add" methods to existing types without creating new derived types, recompiling, or otherwise modifying the original types. An extension method is a special static

setup.py spam.c3. Installation[[email protected] pycext] # python setup.py Install running installrunning buildrunning build_extrunning install_libcopying build/lib.linux-i686-2.6/spam.so- >/usr/lib/python2.6/site-/usr/lib/python2.6/site-packages/spam-0.0.0-py2.6.egg-/usr/lib/ Python2.6/site-packages/spam-0.0.0-py2.6.egg-infoExecute the command as above, and install it.Iv. Use of modulesImport Spamin [2]: Spam.system ("ls-la")drwxr-xr-x. 3 root root 4096 Apr 8 22:07 drwxr-xr-x. Root root 40

({ function () { init ();}}) }) (jQuery);Description, the self-executing function receives the jquery object as a parameter, and then internally defines an extension method MyMethod for jquery, which executes the true logic code init functionUse:DescriptionWhen the 1.jQuery file is introduced, the jquery object is globally available.2. A custom nb-list.js file is then introduced, where the self-executing function receives the jq