Compare two dates which is in string format

Question

0.00/5 (No votes)

See more:

C#3.0

C#

Dear Sir

I want to compare two dates which is in dd/MM/YYYY string format

Ankita Mali

Posted 1-Aug-11 1:42am

Ankita Mali

Updated 1-Aug-11 18:37pm

v2

Add a Solution

7 solutions

Solution 1

You can use DateTime.Parse()[^] method to convert the string to a DateTime value and then after that, the compare is pretty straightforward.

Posted 1-Aug-11 1:45am

walterhevedeich

Solution 7

Simply convert the strings to DateTime objects, and then use the == operator to compare them:

C#

DateTime dt1;
DateTime dt2;

if (DateTime.TryParse(strDate1, out dt1) && DateTime.TryParse(strDate2, out dt2))
{
    if (dt1.Date == dt2.Date)
    {
        // the dates are identical
    }
}

Posted 1-Aug-11 2:10am

#realJSOP

Solution 6

Suppoese two textboxes as dtpReqDate and tpIssueDate.
DateTime(int year,int month,int day)
so break the string according to the above parameteres.

C#

DateTime dtEndDate = new DateTime(int.Parse(dtpReqDate.Text.Substring(6, 4)), int.Parse(dtpReqDate.Text.Substring(0, 2)), int.Parse(dtpReqDate.Text.Substring(3, 2)));
                    DateTime dtStartDate = new DateTime(int.Parse(dtpIssueDate.Text.Substring(6, 4)), int.Parse(dtpIssueDate.Text.Substring(0, 2)), int.Parse(dtpIssueDate.Text.Substring(3, 2)));
                    
                    TimeSpan devDate = dtStartDate.Subtract(dtEndDate);

Posted 1-Aug-11 1:51am

uspatel

Updated 1-Aug-11 1:53am

v2

Comments

walterhevedeich 1-Aug-11 7:59am

My 4. There's a shorter solution for it so that you dont need to go through all pain of the int conversions. You can do a Convert.ToDateTime, as others have pointed out, or DateTime.Parse.

Solution 3

Hi,
Compare after conversion.
Use Convert.ToDateTime("05/12/1984");

Posted 1-Aug-11 1:46am

vivekse

Updated 1-Aug-11 14:12pm

v2

Comments

walterhevedeich 1-Aug-11 7:55am

Correct.

Ankita Mali 2-Aug-11 0:29am

but my date is in dd/MM/yyyy format if the date is 28/05/2011 it is giving error

Solution 5

Hi,

C#

if (date1.Equals(date2))
                   {


                   }

for checking equlaity..
do you want to take the diffrence in date?

for doing that convert those dates to datetime format and compare it

regards,
shefeek

Posted 1-Aug-11 1:51am

shefeekcm

Updated 1-Aug-11 1:54am

v3

Comments

walterhevedeich 1-Aug-11 8:00am

Correct.

#realJSOP 1-Aug-11 8:07am

Your code is incorrect. The Equals method returns true if the objects are the same object (essentially, the same pointer value), not if the data represented by those objects is identical.

[no name] 1-Aug-11 8:19am

You are wrong John. DateTime is a value type and it's Equal method has been overriden to compare values.

Solution 4

YYYYMMdd string format is easy to compare, but Permalink gives you the elegant and usefull way to compare dates

Posted 1-Aug-11 1:47am

Jesús Utrera

Comments

walterhevedeich 1-Aug-11 7:57am

What's permalink?

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)

UJimbo · Accepted Answer · 2011-08-01T01:46:00

Solution 2

Convert both to DateTime and then use DateTime.Compare to do the comparison

Posted 1-Aug-11 1:46am

UJimbo

Updated 1-Aug-11 14:13pm

v2

Comments

UJimbo 1-Aug-11 7:52am

1 star? Really?

walterhevedeich 1-Aug-11 7:56am

I think your solution is correct. Countered with a 5.

[no name] 1-Aug-11 8:15am

There are trolls who keep downvoting answers without even understanding what it means. Countered with 5.

UJimbo 1-Aug-11 8:19am

Thank you gentlemen