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C#•17mo ago

❔ error when converting string to long

System.FormatException: Input string was not in a correct format.

System.FormatException: Input string was not in a correct format.

you can see on image from what im trying to convert

public string ChangePercent24Hr { get; set; }
public long ChangePercent24HrD => long.Parse(ChangePercent24Hr);

public string ChangePercent24Hr { get; set; }
public long ChangePercent24HrD => long.Parse(ChangePercent24Hr);

15 Replies

Down•17mo ago

string value: "-3.7193950756378277"

Pobiega•17mo ago

Longs can't have decimals Are you thinking of double?

Down•17mo ago

okay but tried this with double and didnt work either let me change it back to double

Pobiega•17mo ago

Also, decimal parsing is culture specific

WhiteBlackGoose•17mo ago

$invariantculture

MODiX•17mo ago

In different cultures "," and "." are used for decimal points (and even other symbols sometimes). Here what you can write use Invariant culture (with dot):

float.Parse("1.2", CultureInfo.InvariantCulture)

float.Parse("1.2", CultureInfo.InvariantCulture)

Or use Try-pattern

using System.Globalization;
if (float.TryParse("1.2",  NumberStyles.Any, CultureInfo.InvariantCulture, out var res))
    Console.WriteLine($"Parsed! {res}");
else
    Console.WriteLine("Failed");

using System.Globalization;
if (float.TryParse("1.2",  NumberStyles.Any, CultureInfo.InvariantCulture, out var res))
    Console.WriteLine($"Parsed! {res}");
else
    Console.WriteLine("Failed");

Down•17mo ago

Down•17mo ago

let me add Culture works now impossible thanks can i set like global Culture or i need to add this argument to every Parse method

WhiteBlackGoose•17mo ago

I think you should be able to set it ngl it kinda frustrates that C# by default is local

Pobiega•17mo ago

yeah you can set currentculture

WhiteBlackGoose•17mo ago

Apparently some dumbass thought that US-only date format is "invariant culture"

WhiteBlackGoose•17mo ago

they even did time correctly why date is in random order 🤦

Down•17mo ago

bros aint thinkin out there in microsoft

WhiteBlackGoose•17mo ago

I'm not saying they aren't but some decisions aren't really thought at all

Accord•17mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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