guid

转自： https://www.cnblogs.com/umlzhang/p/3654486.html ASP.NET jquery ajax传递参数 第一种：GET传递 前台 ajax GET 传递 ：即在请求的地址后面加上参数，URL地址长度有显示，安全性低 后台接收：Request.QueryString[“参数名字”]！ 例如： function LoadBar(id) { var project = id; var month = $("#txtMonth").val(); $.ajax({ type: "GET", async: false, url: 'GetProjectScore.aspx?project=' + project + '&month=' + month, dataType: 'json', beforeSend: function () { }, success: function (msg) { if (msg) { optionBar.xAxis.categories = eval(msg.projectscore.orgname); optionBar.series = eval(msg.projectscore.series); var t = eval("(" + subtitle + ")"); optionBar.subtitle =

I posted this question earlier on SuperUser but I feel it is more suited for programmers. If I understand correctly, according to GPT, the first 16 bytes of LBA 2 is the partition type GUID for the first partition on disk. In Windows Disk Management the first partition is designated as an EFI System Partition. However upon further investigation an EFI System Partition's GUID is: C12A7328-F81F-11D2-BA4B-00A0C93EC93B And yet the first 16 bytes tell me otherwise: 28732AC1-1FF8-D211-BA4B-00A0C93EC93B Interestingly the first 3 sections act as little endian while the other 2 are big endian. Why is

Is there a way to obtain a unique database identifier (such as a GUID) from a SQL 2005 database? I found this article: http://msdn.microsoft.com/en-us/library/microsoft.sqlserver.management.smo.database.databaseguid%28v=sql.90%29.aspx However, I need to be able to obtain the DatabaseGuid from T-SQL instead of VB. EDIT: I am trying to uniquely determine the database for which I am connected. Through code I manually sync records between SQL Compact and SQL Server. Right now my users are in a test environment and when they are pointed to production SQL in the future I will need to re-sync entire

I would like to get a few ideas on generating unique id's without using the GUID. Preferably i would like the unique value to be of type int32. I'm looking for something that can be used for database primary key as well as being url friendly. Can these considered Unique? (int)DateTime.Now.Ticks (int)DateTime.Now * RandomNumber Any other ideas? Thanks EDIT: Well i am trying to practise Domain Driven Design and all my entities need to have a ID upon creation to be valid. I could in theory call into the DB to get an auto incremented number but would rather steer clear of this as DB related stuff

I understand that this doesn't take a significant chunk off of the entropy involved, and that even if a whole nother character of the GUID was reserved (for any purpose), we still would have more than enough for every insect to have one, so I'm not worried, just curious. As this great answer shows, the Version 4 algorithm for generating GUIDs has the following format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx x is random 4 is constant, this represents the version number. y is one of: 8, 9, A, or B The RFC spec for UUIDs says that these bits must be set this way, but I don't see any reason given.

I'm trying to capture a screenshot of whole browser screen (e.g. with any toolbars, panels and so on) not only an entire page, so I'm got this code: using (FirefoxDriver driver = new FirefoxDriver()) { driver.Navigate().GoToUrl(url); ScreenCapture sc = new ScreenCapture(); // How can I find natural IntPtr handle of window here, using GUID-like identifier returning by driver.currentWindowHandle? Image img = sc.CaptureWindow(...); MemoryStream ms = new MemoryStream(); img.Save(ms, ImageFormat.Jpeg); return new FileStreamResult(ms, "image/jpeg"); } You could get the window handle using Process

As GUID generation is time-dependent, if System.Guid.NewGuid() is called multiple times at the exact same instant on different threads, could it return identical GUIDs? George V. Reilly On Windows, GUIDs (UUIDs) are created from a cryptographic random number generator with UuidCreate . They are version 4 UUIDs in terms of RFC 4122 . No timestamps or ethernet cards are involved, unless you're using old school version 1 GUIDs created with UuidCreateSequential . See also How Random is System.Guid.NewGuid()? (Take two) No, there is a serial number inside it that changes for each call, so multiple