please help with explanation of this code

Question

1.00/5 (1 vote)

See more:

please help with explanation of this code:

C#

if (Convert.ToInt16(day) < 10 && day.Length == 1)
{
   day = String.Format("0{0}", day);
}
//month = "09";
if (Convert.ToInt16(month) < 10 && month.Length == 1)
{
   month = String.Format("0{0}", month);
}

Posted 28-Oct-15 2:22am

Member 12086847

Updated 28-Oct-15 2:28am

phil.o

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

F-ES Sitecore · Accepted Answer · 2015-10-28T02:31:00

It converts single digit numbers to double digit numbers, so "1" becomes "01" but "12" remains "12" and "01" remains "01".

if "day" is "3" then Convert.ToInt16 is 3 so it is checking that the numeric value of "day" is 3 and that the length of the "day" string is 1. This means it is only interesting in things like "3" but will ignore "03" as the length of 03 is 2. When it finds a string it wants to amend it adds a zero in front which is what string.format does.

There are more efficient ways of doing this.

phil.o · Accepted Answer · 2015-10-28T02:33:00

This code simply ensures (but not the best way) that month and day numbers will be 2 characters-long.

But that is silly. Day and month should be integers, not strings; and displaying an integer with a given number of digits is done this way:

C#

// Remember that day and month variables here are integers
// (whereas they are strings in your question)
string dayString = day.ToString("D2");
string monthString = month.ToString("D2");

Using string type instead of the correct type is seen very often these days, unfortunately; that is a terrible habit that should be fought as soon as possible.

Hope this helps.

please help with explanation of this code

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0