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This article originates from: http://www.cnblogs.com/zhhh/archive/2011/04/06/2006868.htmlA circular reference is detected when a data object is serialized using LINQ to SQL and a System.InvalidOperationException exception is reported, and an object

We all know that arrays are a very important concept in all programming languages, and the function of an array is to agree that the program ape uses the same name to refer to multiple variables, and therefore uses an array index to differentiate

This article by Harry _ Spider-Man original, reproduced please indicate the source! Have a question Welcome to contact [email protected]Note: I give the electronic version is more than 700 pages, and the physical book is more than 800 pages, so when

Free virtual machines under WINDOWS7 (Microsoft Official virtual machine)Objective:Not to say that Windows7 comes with the best use of the virtual machine, but he is the official version, free of charge, only you are Windows7 users, you can use for

Warning: # 870-d: Invalid multibyte character SequenceWarning: # 870-d: Invalid multibyte character SequenceConst unsigned char mm [] = {"People's Republic of China "};Mdk3.40 version with alarm, C-MDK 3.70 normalWarning Message: Invalid multibyte

This is the third article in the series. The addresses of the first two articles are described as follows: introduction and explanation 1. I wrote this series of articles for the following purposes: 1. Popularize the technologies and knowledge

Edraw Max allows students, teachers, and business people to create and release various design drawings. It is a chart control software that combines all functions, it allows you to easily create flowcharts, organization charts, network charts,

客户端配置 1.安装FreeDWGViewer.exe，设置浏览器查看 2.检查ActiveX插件是否已安装成功 服务端配置1.开启许可模式或者通过脚本将“application/acad”加入InlineDownloadedMimeTypes 或者 参考http://www.captechconsulting.com/blog/brandon-atkinson/allowing-pdfs-open-browser-sharepoint-2010-the-right-way$webApp

Sometimes Excel VBA is used to deal with some things. After all, I am a lazy person, and I always like to try to hand over repetitive work to the computer for processing, so that I can prove that my brain is still running, summarize some methods for

How to convert PPT into PDFTo make it easier to read multiple courseware files, you sometimes need to make it into a PPDF file, and use its convenient and small reading method to help us quickly play each slide, today, I will introduce you to a

The working principle of the switch power supply in this paper is the analysis of the principle of the switch power supply engineers of Electronic enthusiasts. Based on the analysis of a wide range of switch power supply cases, this paper introduces

UML describes the relationship between objects and classes by dependency, association, aggregation, composition, and generalization ), implementation. Dependency(Dependency): Element A changes will affect Element B, but vice versa. The

  PNG file structure analysis (I: Understand the PNG file storage format)   Preface We all know that during the development of the mobile phone application program for j2's, we can use images in PNG format (even on some mobile phones, we can only

The registry list has many different shapes and sizes, some of which are only a single input box, and some require multiple steps. The login form design defines the nature of the website, so it should be designed accordingly. The list below provides

HTTP status code is a three-digit code used to indicate the HTTP response status of a Web server. It is defined by the RFC 2616 specification and has been extended by specifications such as RFC 2518, RFC 2817, RFC 2295, and RFC 2774. The first

In the past two days, I have studied how to get data from the DirectShow device by using FFMPEG. Here I will record it for memo. The methods described in this article mainly correspond to Windows platforms.1. Column Devicesffmpeg -list_devices

Next, we will deploy the local exchange first. It is very easy to deploy exchange in a clean single-domain environment. Here we will deploy two CAS servers for NLB, two mailbox servers are used as the Dag, and an edge server is added. The reverse

For some insiders, SAP is no stranger, and sap can make the enterprise develop fast and fast. It is an advanced enterprise management system software. While China is growing rapidly, the shortage of SAP implementation consultants has gradually

When a file is returned from a browser, you must specify the contenttype. the following values are for office2007: "Application/vnd. openxmlformats-officedocument.wordprocessingml.template" (for. dotx files) "Application/vnd.

Ansible @ an efficient configuration management tool-Ansible configure management-translation (10), ansible-ansibleNo written permission. Do not reprint it Custom ModulesUntil now we have been working solely with the tools provided to us by Ansible.