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When using EF to update data, the following error is reported:An object with the same key already exists in the Objectstatemanager. Objectstatemanager cannot track multiple objects with the same key.The reason is that 2 entities with the same key

Ngui Structure UI Root (2D) for creating a UI UI object with a camera parameter of simple 2DThe camera parameter created with Ngui is a simple 2D UI that generates 1 game objects named UI Root (2D) in the game's scene, with 3 other objects under it:

ZeroMQ official address:http://api.zeromq.org/4-1:zmq_msg_init_sizeZmq_msg_init_size (3) ØMQ Manual-ømq/3.2.5NameZmq_msg_init_size-initializes the ZMQ Message Object with a specified space sizeSynopsisint zmq_msg_init_size (zmq_msg_t *msg, size_t

  Error: a different object with the same Identifier value was already associated with the session I encountered this error again today. I know what is going on, but I forgot where I wrote it and corrected it.CodeTo avoid finding another one,

2017-3-16I'm using the SSH framework to do a single-table CRUD update operation encountered a problem, that is, how to pass the value between pages? The need to solve the problem caused a series of bugs, while still remember a good summary.Transfer

Hibernatesystemexception:a different object with the same identifier value is already associated with the session. This error is due to the existence of a cached object A in the session-level cache of Hibernate, and the same identifier for

When you convert a JSON string to a JSON object with eval (), the conversion fails if there is a space in the value value. Workaround: 1. Use JS Replace method to remove space var str = "SSSs DDADF";var re = str.replace (/\s+/g, "");//delete all

Clob: Text large object, maximum 4GBLOB: Binary data large object, maximum 4GUtilpublic class Hibutil {private static Sessionfactory sessionfactory;static{Get configuration information Hibernate.cfg.xmlConfiguration configuration = new configuration

Because jQuery returns the jQuery object no matter whether the object to be obtained exists or not. Therefore, in the past, it was impossible to determine whether JavaScript exists in jQuery. JQuery determines whether the object with the specified

Because jQuery returns the jQuery object no matter whether the object to be obtained exists or not. Therefore, in the past, it was impossible to determine whether JavaScript exists in jQuery. JQuery determines whether the object with the specified

In Delphi, sometimes we want the object to be able to receive Windows messages. Because you want to receive Windows messages at least with Windows Handle, do you want to create a visible window? That seems too passable. Delphi provides a function

The principle of refraction is the use of a spherical Gaussian approximation of the BTDFThe source of the refracted light needs to be considered, and it is common to think of environmental mapping (IBL) or grab texture, but the refraction light does

Recently in learning Unity3d several plugins. Easy Touch,playmaker,ngui. In order to make several can use together, also got playmaker Ngui scripts and easy touch addon 4 playmaker plugin.A recent one requires touch to drag a Ngui 2d object and want

The following is a data dictionary of the Swap CircleThe Change Circle function Introduction:Changing circles is a social platform for colleges and universities to socialize with the exchange of idle objects. there are mainly exchange channels and

Learning OpenCV Everyone will encounter an object called Mat, this object is very magical, support a variety of operations. Many beginners are so dizzy brain swelling, its various usage too much too miscellaneous, engage beginners overwhelmed, feel

CLASSC Code: PackageJichu; Public classClassC {Private intS1; Private intS2; PublicClassC (intS1,intS2) { This. S1 =S1; This. S2 =S2; } PublicClassC (ClassC c) { This. S1 =c.s1; This. S2 =C.s2; C.S1++; C.s2++; } PublicString

Today in the SSH2 project, there was this mistake, always feel that their code is not wrong, looking for a long time ....Slag slag I in despair, suddenly fix!!!Originally, I get the data from the database in the DAO layer to get a PO object, and

Create a card object with information such as "First Name," "Address," and "phone" on the card. The business Card object provides a way to output this information.

The following code is a piece of code in JavaScript design patterns and development practicesfunction person (name) {THIS.name = name;};Person.prototype.getName = function () {return this.name;};var objectfactory = function () {var obj = new Object (

The name of the parameter to be passed when using this method must end with the line number, minus the line number is the property name, such as page Pass Name+rowno, then the property name of the entity object should be name. The code is as