如何从 DateTime.Now 格式中删除所有正斜杠“/”、冒号“:”和空格

Question

I want to convert DataTime.Now output into a interger,

I want to remove all the forward slash "/" Colons ":" and spaces " " even PM/AM.

example:

From = 1/24/2022 10:51:54 PM

to = 1242022105154

Answer 1

Use this:

long n = long.Parse(date.ToString("yyyyMMddHHmmss"));

if you want in string format:

var n = date.ToString("yyyyMMddHHmmss");

And you can change the location of the year and month in the above field. for example:(this is correct for your question)

var n = date.ToString("MddyyyyHHmmss");

where date is your variable contain date value.

Answer 2

If you have a date-string you first need to parse it, then you can use DateTime.ToString :

string s = "1/24/2022 10:51:54 PM";
string result = DateTime.Parse(s, CultureInfo.InvariantCulture).ToString("MdyyyyHHmmss");

So the correct format string for you is MdyyyyHHmmss.

Note that m are minutes and M is month, uppercase H means 24h hours.

See: Custom date and time format strings

Answer 3

You can use as below:

From.ToString().Replace("/","").Replace(":","").Replace(" ","")

Answer 4

You can use:

.Replace("the character u want to remove" , "new char");

Answer 5

string outPut= DateTime.Now.ToString("MdyyyyHHmmss", CultureInfo.InvariantCulture);

The Path. GetFileNameWithoutExtension method gives you the filename you pass as an argument without the extension, as should be obvious from the name.