Format the date to yyyy/mm/DD.

The date format is yyyy/mm/DD.

However, it can be formatted using DT. tostring ("yyyy/mm/DD"), but it still looks like yyyy-mm-dd. For example, formatting does not work. At last, we found the reason. It turns out that the system we use adopts the Chinese date format, so it won't work. However, you need to do the following.

Change the code to DT. tostring ("yyyy/mm/DD", new cultureinfo ("En-us"). In this way, the date is changed to yyyy/mm/DD.

Note: The namespace system. globalization needs to be introduced when you use cultureinfo.