convert string to date(dd/MM/yyyyy) format in c#

i have a query string with format MM/DD/YYYY

I am using it in c# like

DateTime d = Request.QueryString["dateTime"].toString();

its giving me a lot of error saying the date time format is not recognized. If i manually change the datetime in browser address bar (query string) to dd/mm/yyyy then the program just works fine.

I cannot change the query string, is there a way in c# to get it from browser and then convert into date like dd/mm/yyyy please?

edit: the q开发者_StackOverflow中文版uery string:

http://localhost:49543/HM/Admin/ViewDetails.aspx?OrderNo=10&DateCreated=08/30/2010

so you can see the datecreated part is in MM/DD/YYYY format. I am not able to grab it from c#. If I manually change that to 30/08/2010, it works

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DateTime d = DateTime.ParseExact(Request.QueryString["dateTime"], "dd/MM/yyyy", CultureInfo.InvariantCulture);

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How to turn string from request into DateTime:

DateTime d = DateTime.ParseExact(Request.QueryString["dateTime"], "dd/MM/yyyy", null);

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DateTime.ParseExact is the solution you seek for. But I recommend you to validate the querystring data with a function as follows:

bool isValidDate(string dtStr) {
    string pattern = @"^(([0-2]\d|[3][0-1])\/([0]\d|[1][0-2])\/[2][0]\d{2})$)";
    System.Text.RegularExpressions.Regex re = new System.Text.RegularExpressions.Regex(pattern);
    return re.IsMatch(dtStr);
}

EDIT 1: Besides ParseExact, you can use the following:

DateTime.Parse(dateString, new System.Globalization.CultureInfo("tr-TR"))

Turkish datetime format is dd/MM/YYYY.

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// Parsing:
DateTime d = DateTime.Parse(Request.QueryString["dateTime"].toString());

// Conversion:
string dString = d.ToWhateverFormatYouWant();

And here's some info on formatting dates:

http://msdn.microsoft.com/en-us/library/az4se3k1(VS.71).aspx

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DateTime.TryParse could be a great option..

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Try this it should work

    DateTime d = 
           DateTime.ParseExact(Request.QueryString["dateTime"], 
           "dd'/'MM'/'yyyy",    
           CultureInfo.InvariantCulture);

I faced something similar: DateTime Format in C#

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You can use: DateTime.Now.ToString("dd/MM/yyyy");