
What are the uses of "using" in C#? - Stack Overflow
2017年3月8日 · User kokos answered the wonderful Hidden Features of C# question by mentioning the using keyword. Can you elaborate on that? What are the uses of using?
c# - try/catch + using, right syntax - Stack Overflow
In other word, if you know that the initialization of a variable in using may throw a particular exception, I wrap it with try-catch. Similarly, if within using body something may happen, which …
Why use a using statement with a SqlTransaction?
During my Googling I see many people using a using statement with a SqlTransaction. What is the benefit and/or difference of using this type of statement with a SqlTransaction?
c# - Using .ToDictionary () - Stack Overflow
2010年8月31日 · Edit The ToDictionary() method has an overload that takes two lambda expressions (nitpick: delegates); one for the key and one for the value. For example: var …
How to update/upgrade a package using pip? - Stack Overflow
2017年11月2日 · What is the way to update a package using pip? those do not work: pip update pip upgrade I know this is a simple question but it is needed as it is not so easy to find (pip …
How does `USING` keyword work in PostgreSQL? - Stack Overflow
2024年1月29日 · I am confused with the USING keyword which is used to join two tables in postgres. I first saw it in another SO post Compare two tables in postgres. I checked the …
Accessing Microsoft Sharepoint files and data using Python
2020年1月30日 · I am using Microsoft sharepoint. I have an url, by using that url I need to get total data like photos,videos,folders,subfolders,files,posts etc... and I need to store those data in …
What's the problem with "using namespace std;"?
The problem with putting using namespace in the header files of your classes is that it forces anyone who wants to use your classes (by including your header files) to also be 'using' (i.e. …
What is the difference between 'typedef' and 'using'?
Updating the using keyword was specifically for templates, and (as was pointed out in the accepted answer) when you are working with non-templates using and typedef are …
How do I UPDATE from a SELECT in SQL Server? - Stack Overflow
2010年2月25日 · Although the question is very interesting, I have seen in many forum sites and made a solution using INNER JOIN with screenshots. At first, I have created a table named …