C#•12mo ago

ASP.NET Web API doesn't parse floating numbers with a '.'

Hi everyone, I have a quick question about ASP.NET I am scratching my head over this for an hour now. Why when I ask a simple float number in my controller and I give for exemple ''12.547" it does not get parsed and just returns to the calling client this response:

{
    "type": "https://tools.ietf.org/html/rfc7231#section-6.5.1",
    "title": "One or more validation errors occurred.",
    "status": 400,
    "traceId": "00-975a6f23fd686e43f96af5532f544f5b-83eec17e49f1b737-00",
    "errors": {
        "Time": [
            "The value '1572.752214' is not valid for Time."
        ]
    }
}

{
    "type": "https://tools.ietf.org/html/rfc7231#section-6.5.1",
    "title": "One or more validation errors occurred.",
    "status": 400,
    "traceId": "00-975a6f23fd686e43f96af5532f544f5b-83eec17e49f1b737-00",
    "errors": {
        "Time": [
            "The value '1572.752214' is not valid for Time."
        ]
    }
}

It might be a culture problem, because my computer is in french, and floating numbers are formatted like '12,547' for example. But I did not find any way of telling ASP to use the en-US culture. Any idea? Thank you so much.

3 Replies

Kiel•12mo ago

I am not an asp.net expert, but you could try adding this shortly before your web host runs (in Program.cs perhaps?)

var cultureInfo = new CultureInfo("en-US");

CultureInfo.DefaultThreadCurrentCulture = cultureInfo;
CultureInfo.DefaultThreadCurrentUICulture = cultureInfo;

var cultureInfo = new CultureInfo("en-US");

CultureInfo.DefaultThreadCurrentCulture = cultureInfo;
CultureInfo.DefaultThreadCurrentUICulture = cultureInfo;

Kiel•12mo ago

From this SO post

Stack Overflow

Set CultureInfo in Asp.net Core to have a . as CurrencyDecimalSepar...

I'm going mad. I just want the culture used in the entire Asp.net core application to be set to "en-US". But nothing seems to work. Where to I set the culture for the entire application? I'm not

LoanOP•12mo ago

I am going to end my life 😭 You are right, I tried by setting the CultureInfo.CurrentCulture & CultureInfo.CurrentUICulture (which is not working) But I haven't though about the THREAD Culture... because ASP is multi threaded Anyway, works like a charm now, thank you so much, I'll stop wasting time on this 😅

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ASP.NET Web API doesn't parse floating numbers with a '.'