October 2021 - Page 301 of 369 - Simon Technology Blog

C # – Determine the number of pages in the PDF file

I need to use C# code (.NET 2.0) to determine the number of pages in a specified PDF file. The PDF file will be read from the file system, not from the URL. Does anyone Any pointers on how to do th

October 4, 2021By Simo C# C #, determined, file, Number, page number, PDFLeave a Comment

C # telnet class library code, give it to the brothers who are still looking for c # telnet class libraries

C# Telnet class library code Today I installed a solid-state notebook for the notebook. The speed increase is obvious. I am very happy to send a Weibo as a souvenir. Self-taught C#, network, want t

October 4, 2021By Simo C# brother, C #, class, code, dedicated, Library, looking, still, telnet, wishLeave a Comment

How to get the current date and time of MySQL?

Is there a value or command like DATETIME that I can use in manual queries to insert the current date and time?

INSERT INTO servers (
server_name, online_status, exchange, disk_space, networ

October 4, 2021By Simo Mysql Current, Date, how to get, mysql, timeLeave a Comment

Mysql string intercept

MySQL string interception functions: left(), right(), substring(), substring_index(). There are mid(), substr(). Among them, mid() and substr() are equivalent to the substring() function, and the f

October 4, 2021By Simo Mysql intercept, mysql, stringLeave a Comment

MySQL installation

1.mysql download Select the corresponding version download address Here we download mysql-8.0.17-winx64

Unzip and create the root directory after unzip my.ini and data folder

basedir:

October 4, 2021By Simo Mysql installation, mysqlLeave a Comment

Practical mysql database command

Connect: mysql -h host address -u user name-p user password (Note: u and root need not add spaces, the other is the same)
disconnect: exit (Enter) Create authorization: grant select on database.*

October 4, 2021By Simo Mysql Command, database, mysql, practicalLeave a Comment

C # Run the WinForm program as an administrator

Excerpted from: https://www.cnblogs.com/yuluo/p/5718057.html

The WinForm client developed recently for customers, part of it In the process of use, an error message of “system file not found”

October 4, 2021By Simo C# administrator, C #, Identity, program, running, WinFormLeave a Comment

Month: October 2021