How to parse a month name (string) to an integer for comparison in C#?

user_21367 0
Viewed 152802

I need to be able to compare some month names I have in an array.

It would be nice if there were some direct way like:

Month.toInt("January") > Month.toInt("May")

My Google searching seems to suggest the only way is to write your own method, but this seems like a common enough problem that I would think it would have been already implemented in .Net, anyone done this before?

compare integer parsing c#
14 Answers

DateTime.ParseExact(monthName, "MMMM", CultureInfo.CurrentCulture ).Month

Although, for your purposes, you'll probably be better off just creating a Dictionary<string, int> mapping the month's name to its value.

user_127250

You could do something like this:

Convert.ToDate(month + " 01, 1900").Month
Aaron_Palmer_249080

If you use the DateTime.ParseExact()-method that several people have suggested, you should carefully consider what you want to happen when the application runs in a non-English environment!

In Denmark, which of ParseExact("Januar", ...) and ParseExact("January", ...) should work and which should fail?

That will be the difference between CultureInfo.CurrentCulture and CultureInfo.InvariantCulture.

Rasmus_Faber_55420

You can use the DateTime.Parse method to get a DateTime object and then check its Month property. Do something like this:

int month = DateTime.Parse("1." + monthName + " 2008").Month;

The trick is to build a valid date to create a DateTime object.

Rune_303660

You can use an enum of months:

public enum Month
{
    January,
    February,
    // (...)
    December,
}    

public Month ToInt(Month Input)
{
    return (int)Enum.Parse(typeof(Month), Input, true));
}

I am not 100% certain on the syntax for enum.Parse(), though.

Treb_221140

If you are using c# 3.0 (or above) you can use extenders

user_175400

This code helps you...

using System.Globalization;

....

string FullMonthName = CultureInfo.CurrentCulture.DateTimeFormat.GetMonthName(DateTime.UtcNow.Month);

GetMonthName Method - it returns string...

If you want to get a month as an integer, then simply use - 

DateTime dt= DateTime.UtcNow;
int month= dt.Month;

I hope, it helps you!!!

Thanks!!!

user_75340130 
int selectedValue = 0;
            switch (curentMonth)
            {
                case "January":
                    selectedValue = 1;
                    break;
                case "February":
                    selectedValue = 2;
                    break;
            }
            if (selectedValue != 0)
            {
               /* var list= db.model_name.Where(x => x.column== selectedValue);
                return list; */
            }
            return Ok(selectedValue);
user_152767710
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