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Editorial Team
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Asked: 2026-05-11T20:06:56+00:00

I am getting a CA1305 Warning. Microsoft.Globalization : Because the behavior of ‘int.Parse(string)’ could

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I am getting a CA1305 Warning.

Microsoft.Globalization : Because the
behavior of ‘int.Parse(string)’ could vary based on the
current user’s locale settings,
replace this call in
‘_Default.CalculateImageButton_Click(object,
ImageClickEventArgs)’ with a call to
‘int.Parse(string,
IFormatProvider)’. If the result of
‘int.Parse(string,
IFormatProvider)’ will be displayed to
the user, specify
‘CultureInfo.CurrentCulture’ as the
‘IFormatProvider’ parameter.
Otherwise, if the result will be
stored and accessed by software, such
as when it is persisted to disk or to
a database, specify
‘CultureInfo.InvariantCulture’.

What exactly can go wrong if I omit specifying the culture when parsing Int32?

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1 Answer

  1. Editorial Team

    It means that when you read “1,234” from a data file or Database record, then try to cast it to an Int via Parse, you’ll get 1234 in America and 1 in Germany. The warning gives good advice – if you’re interacting with the user, specify CurrentCulture (thanks Andrew!), and if you’re interacting with a filesystem or database (or anything !user), use InvariantCulture

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