DateTime Error : string was not recognized as a valid datetime

I was experiencing the DateTime error as "string was not recognized as a valid datetime" with the below code.

string createdAt = "12-08-2015 10:35:41";
DateTime onSetDate;

            string formatDate = "MM-DD-YYYY HH:mm:Ss";

            CultureInfo provider = CultureInfo.InvariantCulture;

            onSetDate = DateTime.ParseExact(createdAt , formatDate, provider);  

Can some advise me on this?
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
the format string is case sensitive, so you need to work it out correctly:

string formatDate = "MM-dd-yyyy HH:mm:ss";

But are you sure to want MM-dd and not dd-MM since the date is today


Proof of concept using Angel's recommendation:
using System;
using System.Globalization;

namespace EE_Q28704933
	class Program
		static void Main(string[] args)
			string createdAt = "12-08-2015 10:35:41";
			DateTime onSetDate;
			string formatDate = "MM-dd-yyyy HH:mm:ss";
			CultureInfo provider = CultureInfo.InvariantCulture;
			onSetDate = DateTime.ParseExact(createdAt, formatDate, provider);

Open in new window

Produces the following output -Capture.JPG-saige-

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Guy Hengel [angelIII / a3]Billing EngineerCommented:
though Rgonzo1971's comments is also valid (in general).
for that string, both date formats (dd-mm and mm-dd alignments) will work
for 13-08 however only dd-mm alignment will work
please review
Gustav BrockCIOCommented:
I tested here, and all you need this:

    string formatDate = "dd-MM-yyyy HH:mm:ss";

Returns: 2015-08-12 10:35:41

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