How to format a string into a certain pattern?

Question

I have a string of telephone number. The format I wanted to use is like this

(044) 463-2256

How can I format my string like this?

string tel = "0444632256";
var match = Regex.Replace(tel, @"");

I tried using Regex.Replace but I don't know what the format that I will put in.

score 0 · Accepted Answer · answered Oct 04 '19 at 04:56

0

If the Length of the string is always constant(10) , then wecan use the below method to format

string tel = "0444632256";
var format = $"({tel.Substring(0, 3)}) {tel.Substring(3, 3)}-{tel.Substring(6, 4)}";
Console.WriteLine(format);

answered Oct 04 '19 at 04:56

Test12345

How can I remove the format text has been formated? – Oct 04 '19 at 05:02
Can you elaborate more on this – Test12345 Oct 04 '19 at 05:04
I placed this code on my unfocused event. My focused event's function is to remove the format so that when I edit the string it always formatted when I unfocused – Oct 04 '19 at 05:06

Dharmendra Kumar · Answer 2 · 2019-10-04T09:48:57.970

0

You can see below answer:

Convert.ToInt64(tel).ToString("###-###-#### ####")

edited Oct 04 '19 at 09:48

answered Oct 04 '19 at 05:00

Dharmendra Kumar

Is the Customer Phone is where I place the telephone number? – Oct 04 '19 at 05:07
Yes, also I've modified for you. – Dharmendra Kumar Oct 04 '19 at 09:49

score 0 · Answer 3 · answered Oct 04 '19 at 05:43

0

Try this code:

string tel = "0444632256";
tel=String.Format("{0:(###) ###-####}", Int64.Parse(tel));

Output:

(44) 463-2256

answered Oct 04 '19 at 05:43

Tinh Linh

3 Answers3