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AUTOFAC is applied to the project, and when the global polling processing job needs to get the existing service, which has been configured through AUTOFAC, it is rightfully taken with the following code.Dependencyresolver.current.getserviceThe result is a problem, directly throwing the error "the request lifetime scope cannot be created because the HttpContext are not available".Result Crazy StackOverflow (address: https://stackoverflow.com/questions/

Transferred from: https://www.cnblogs.com/luckboy/archive/2010/12/19/1910785.htmlToday encountered this problem, Baidu, the solution of the method summed up.When we manipulate UI controls on a child thread created by the UI thread, the system prompts for the error details:Invalid inter-thread operation: access it from a thread that is not creating a control "XXX"As I know, there are three ways to look at the MSDN introduction:Accessing Windows forms c

title: There is a button and a lable in the form. Click the button to create a new thread to update the value of lable1 Private voidButton1_Click (Objectsender, EventArgs e)2 {3 //Error: Access it from a thread that is not creating a control4Thread T =NewThread (() =5 {6 for(inti =0; I -; i++)7 {8 This. Label1. Text =i.tostring ();9 }Ten }); One T.start (); A}The above code will mak

,Col2 Type2...)On Commit Delete Rows; When a transaction ends (commit or rollback), Oracle automatically clears the data from the staging table. The following shows the creation and use of temporary tables in Oracle 10g: 1. Create a transaction-level staging table, insert a piece of data, and query: Create global temporary table TRANSACTION_TEMP_TB (col1 varchar) on commit delete rows; INSERT INTO TRANSACTION_TEMP_TB values (' Test '); SELECT * from TRANSACTION_TEMP_TB; 2. When a commit or

Problem Description:The natively installed VMware Workstation is version 8.0, from someone else that copied a virtual machine created with the VMware Workstation 12 version, running the virtual machine times wrong:The configuration file "Vmname.vmx" was created by a VMware product, which is incompatible with this version of VMware Works Tation and cannot be used.From the error prompt can be known because of

Convert the Web project created by IntelliJ idea to the MyEclipse version of the Web project, creating the following file and modifying the content:I. Project file (note the previous ·)The main modification is name , which modifies the name to your specific project. Second,. classpathThe main modification is the SRC attribute and the Output property, modified to your project specific path, for example, my web element is placed under the Web, MyEclipse

Q: What are processes and threads. A: The process is a collection of all threads, each of which is a path of execution in the process, and main is also a thread, and the primary thread. PS: Threads do not interfere with each other. Q: Why use multithreading. A: Improve the efficiency of the application, such as downloading software to download multiple tasks can be done at the same time is the application of multithreading. 1. The life cycle of threadsThere are five states in the thread life c

Many times, we all need to use the search function in the Win7 64-bit flagship ISO computer, but many users find that the search function does not seem to be as easy as they think it is, and sometimes it happens very slowly. So a lot of times, We all create indexes on our own Win7 flagship computer, which is a great way to improve search efficiency. But this search does not work after use, the existence will only cause waste of resources, then how can we in the Win7 flagship computer to cancel t

"%%~nxa" "Do Echo"%%b%%c:: Delete a file created after a certain time, if you want to delete a time created before, change two:: Place GTR for LSS. In addition to the date, increase the judgment time, you can remove the Else section. For%%a in (*) doing for/f "tokens=1,2* delims="%%b in (' DIR/TC '%%a "^| find/i "%%~nxa" "Do" (if "%%b" GTR "2010-12-15" (Echo del "%%a") Else (if "%%b" Equ "2010-12-15 "If"%%

. Here is a link to follow the rules (in fact you do not have to strictly adhere to): 1. Everything on the Web can be connected by a URI or a URL.2. Save all links as his original source, so that you can share it with anyone, anywhere, and anytime.3. The premise at any time in the second article is that the link must be persistent and it will not be changed or disappear without any cause.4. Links should be human-readable, stable, and able to interpret themselves.3. The data should belong to the

after downloading MySQL5.6.24 on Oracle and then using NAVICAT to create a new database, I searched the MySQL installation directory and the Navicat directory without finding the newthe database used for testing. Anyway, looking for a day, finally can only use to find the database.Today I think this is not a solution, so it took a long time to finally find. I found it because I was looking for My.ini. The My.ini of the previous database is not known where, in short, the database is not included

Countdownlatch (1); Public Holdthread () { This.setdaemon (TRUE); } public void Run () { try { Cdl.await (); } catch (Interruptedexception e) { } } } Without specifying any JVM parameters, run the output directly in eclipse and see this friend:i = 5602Exception in thread "main" java.lang.OutOfMemoryError:unable to create new native threadAt Java.lang.Thread.start0 (Native Method)At Java.lang.Thread.start (thread.java:597)At Testnativeoutofmemoryerror.main (testnativeo

The process default heap and the additional heap created are mentioned in chapter 18th, "Heap" in the fifth edition of Windows core programming. This is a very important knowledge in programming, to be organized today.1, heaps are ideal for allocating large amounts of small data . Using heaps allows programmers to focus on the problem at hand, regardless of the allocation granularity and page boundaries. So the heap is the best way to manage the list

You can refer to the article "C # for thread-safe invocation of Windows forms controls."There is a problem with the network connection program: Whenever a connection arrives, a new receive thread is created, and when the receive thread receives the message, it can create a new conversation window that cannot block the receipt of the next round of messages for that receiving thread. And the receiving thread is also going to display the received message

Eclipse Imports Additional files in the created projectI was asked by my colleague two days ago how to import files from other directories in a project that was previously created without copying the source files.Tidy up a little bit to summarize the current knowledge of the Eclipse File Import method:1. directly import the project you have createdthrough Eclipse directly Import, existing project2. Create a

When you back up a customer's database (the database version is SQL 2005 Express version), the DBCC CHECKDB encountered the following error message:DBCC CHECKDB (' db_name ');MSG 5030, Level 16, State 12, line 1thThe database could not being exclusively locked to perform the operation.Msg 7926, Level 16, State 1, line 1thCheck statement aborted. The database could not being checked as a database snapshot could not being created and the database or tab

is Providername= "System.Data.SqlClient"You can change it? Too naïve!Issue two, DbContext generates an exception:After the change to run, found or will be errorThe model backing the ' productcontext ' context has changed since, the database was created.Consider using Code first migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269).Check the information on the Internet:For those who is seeing this exception:"The model backing the ' Production ' context has changed sin

The official version of Ubuntu11.04 will be released today as planned. According to the practice of Ubuntu, the official team will distribute the ISO image of the official version to image servers around the world after it is created, after the formal ISO image is synchronized with the global image server, the official version will be published. Therefore, we recommend that you do not download the Ubuntu official ISO image that is being distributed, t

JQuery traverses the newly created elements, and jquery creates them all over again. For newly created elements, using the jQuery each method sometimes does not work. There are roughly two solutions: 1. Use the each method when the creation is complete. $ ('# Btn'). on ("click", function (){$ ('# Div'). append ("$ ("Input"). each (function (){// TODO:});}); 2. Use the each method after loading t

I installed sqlserver before and deleted it later. Now, the installation of a previous program has created a pending file on the computer. You must restart the computer before running the installer. Unable to proceed. Please refer to the online materials to get it done. Step: 1) add and delete the SQL statement from the program I installed SQL server before and deleted it later. Now, the installation of a previous program has