Find the ddmmyyyy in the given string C*

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Hi,

I have string like this "Welcome20032014totheworld2014" . Here I need the output date as below

dd : 20
mm : 03
yyyy : 2014.

I need the code in C#. Please look forward your help.

Thanks
Dhanasekaran Murugesan

Posted 19-Mar-14 20:53pm

dhanasekaranm

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[no name] 20-Mar-14 2:57am

Where is the problem?

Sunny_Kumar_ 20-Mar-14 3:03am

have you tried Regular Expression?

Raul Iloc 20-Mar-14 9:32am

If my solution (solution 1) helped you, you should accept it!

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Raul Iloc · Accepted Answer · 2014-03-19T21:05:00

You should use regular expression. Here is a link http://www.regular-expressions.info/[^]

The regular expression should be:

C#

const string expresion = @"(0[1-9]|[12][0-9]|3[01])(0[1-9]|1[012])(19|20)\d\d";

Then in your code you should use:

C#

foreach (Match match in Regex.Matches(yourString, expresion ))
{
string dateString = match.Value; //your date string: "20032014";
string dd = dateString.Substring(0,2);
string mm= dateString.Substring(2,2);
string yyyy= dateString.Substring(4,4);
//use your data
//..
 
}

Note that the code above is generally and could match more then one date in your input string. If you want to manage only the first occurrence you could use if in place of foreach!

OriginalGriff · Accepted Answer · 2014-03-19T21:10:00

There are various ways to do this, depending on how "fixed" your data is. I'm just guessing that it isn't particularly, and the only part we can trust is the date.
So try this - it's a combination of a regular expression to find the date value, and a convert to DateTime:

C#

string input = "Welcome20032014totheworld2014";
Regex getDate = new Regex(@"\d{8}");
Match m = getDate.Match(input);
if (m.Success)
    {
    DateTime date;
    if (DateTime.TryParseExact(m.Value, "ddMMyyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out date))
        {
        Console.WriteLine(date);
        }
    }

syed shanu · Accepted Answer · 2014-03-19T21:18:00

Chk this

C#

string a = "Welcome20032014totheworld2014";
           string b = string.Empty;
           int val;

           for (int i = 0; i < a.Length; i++)
           {
               if (Char.IsDigit(a[i]))
                   b += a[i];
           }
           textBox1.Text ="dd:"+ b.Substring(0, 2);
           textBox2.Text = "MM:" + b.Substring(2, 2);
           textBox3.Text = "YYYY:" + b.Substring(4, 4);

Find the ddmmyyyy in the given string C*

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