private static string connStr = ConfigurationManager.ConnectionStrings [ "data "] .ConnectionString; what does that mean? I don t understand. I m going to connect to the database and winform . What is [ "data "] copy it from a blogger. ...
VS2017 Enterprise Edition, var do not recognize? How to upgrade C-sharp? No problem generating DLL. ...
{ string strConnection = "Server=DESKTOP-TH8QSR9;"; strConnection += "initial catalog=test;"; strConnection += "user id=DESKTOP-TH8QSR9 suchao;"; strConnection += "password=;"...
for example: Establishment date: June 20, 2017; Business term: from June 20, 2017 to June 19, 2047; scope of business: real estate brokerage services; marketing planning; advertising graphic design; interior decoration. (for projects that must be approv...
when querying SQL, you need to process the data to find the difference. Some units are hours, times, and seconds. For example, when an hour subtracts seconds, the second should be converted to an hour with a difference less than a certain value to send m...
the result returned is empty ! [picture upload.] obviously I have created a field ...
do button-level permissions control on APP, like html, return all button elements when logging in and let the front end handle it on its own? ...
event background: An exe program (designed to hang up for 24 hours to watch video) is written under . The program has a hypertext browse box embedded to open the specified URL and play the video in the URL. However, occasionally there will be buffer...
such as the question, in the actual operation, I found that the direct allocation of space in the GameManager class and the allocation of space in the Awake function, and finally the result of Debug in the UILayoout class is different. I don t know why...
1. There are two entity classes, one of which is as follows: bool compareResult = CompareProperties(user1, user2); ...
there are many local chess players. Just want to make a local mobile phone like chess game, with background, with html5 or what to write? Learn and do from 0. not much is required. It s just that the place is like chess. Let s play a backgammon game...
1. In EF, when we set a primary key and a foreign key, EF will automatically generate cascading deletions for us, but I have read some articles and some authors say that cascading deletions will not occur if the foreign key is set to nullable. Then I wro...
is there a tool that can extract C-sharp attributes to generate JSON? preferably the VS plug-in ...
AES encryption used by the server (C-sharp), CBC,Pkcs7. the key vector on the server side is defined as follows: public byte[] _iv = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF, 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF }; crypto-js used ...
recently playing ubuntu18.04, does not have much space reserved for the program, because it is directly mounted to the disk of the windwos system. dotnet new a xunit project on the mounted disk at night, and then there is a mistake in build. Show MSB...
when I was publishing the website today, I encountered such a problem:: A generic error occurred in GDI+. my idea is very simple: build a QR code generation system, write the information of the relevant fields, and make sure that the QR code of the cor...
in the. NET C-sharp application development process, how do we gracefully convert a file size in bytes to a human-readable unit size (KB,MB,GB,TB)? for example, there is currently a file whose size in bytes is: 7326629 how to convert this byte unit t...
for example, there is an English article. I want to replace each of the 26 letters in the article with another letter. for example: English content: Try Firefox with the bookmarks, history and passwords from another browser. here t change letters ...
in the application development of A. NET C-sharp programming, it is common to deal with files, and using the program to read large files is also a kind of file manipulation. So, what are the ways to read large files and convert them into byte array (byte...
[EnableQuery(PageSize = 200)] public IQueryable<mo> Get(){ .... } the number of pages is limited on the controller, is there any way to add a parameter to the url to achieve the effect of no paging? or other writing to achieve the default p...
for example, the following code mainly restricts the input. var cpLock; $( -sharpinput ).on( compositionstart , function(e) { cpLock = true; }); $( -sharpinput ).on( compositionend , function(e) { cpLock = false; }); $( -sharpinput )....
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problem description this is the sample address Link address Click the data A drop-down, the drop-down data will appear, then randomly select one, finally click cancel, then click the data B drop-down, there will be no data, and then enter a B o...
I used to use the vue-seamless-scroll plug-in is normal, recently suddenly found that can not scroll, but the plug-in is a rendering dom, on the page for a long time did not find the reason, please give advice! reference: import vueSeamlessScroll from...
print and see that it has been 5 seconds since the whole request. I don t know why ...