Not every place in the world uses the full stop (or period) as a decimal mark. The data has the format: "value1,value2,value3\r" as a string. comma instead. Convert to invariant culture not working Generally, the string representations of numeric values are interpreted based on the formatting conventions of a particular culture. My primary responsibilities include requirements gathering, analysis, and design of complex Web and Mob, DIY Space Mouse for Fusion 360 Using Magnets, Trinteract: an Open-source 3D Input Device. So you're fine if your code runs on a system set to a locale with full stops as the decimal, but everything explodes elsewhere. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The number is enter by user and can be in any number format like for example : What I really want to do is get a number from the User Interface who is parse ine the current culture say 1000,05 and save it to the database in invariant culture. But internally use always invariant culture. Making statements based on opinion; back them up with references or personal experience. How can I specify different theory levels for different atoms in Gaussian? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. If you are still debugging, have you thought about using: This will help you in determining what is wrong in each of the string first before you do the actual parsing. Parse strings to double with comma and point. You can set a single style or a bitwise combination of its member values. See screenshot for references. I have a long string with double-type values separated by # -value1#value2#value3# etc. Convert.ToDouble(x) can also have a second parameter that indicates the CultureInfo and when you set it to PS. Here is just a small improvements of his answer, First I decide to declare cultural as static, and took in consideration case when you have value without comma or dot. The reason is simple: in .NET, both Double.ToString() and Double.Parse() use the formatting conventions of the devices culture. What are the pros and cons of allowing keywords to be abbreviated? What is wrong with type-conversion here? Your variable itself does not matter what culture you are using. Different cultures use different decimal separators (namely , and .). GitHub. This provides a known format that does not change and that can be used to serialize and deserialize data across cultures. Hello @MaxyArthes. gdalwarp sum resampling algorithm double counting at some specific resolutions. Developers use AI tools, they just dont trust them (Ep. The reason is simple, the conversion culture plays a big role in which the comma or a dot is interpreted. Thanks for contributing an answer to Stack Overflow! By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. [1] - Ive lived in two countries that use commas as the decimal mark before - Indonesia and The Netherlands - though I dont remember actually ever having used it myself. How I can parse a double in invariantCulture ? like comma (,). How do I open up this cable box, or remove it entirely? Parse (string s, IFormatProvider provider) Converts the string representation of a number in a specified culture-specific format to its double-precision . eventually you can replace "," by "." What is the purpose of installing cargo-contract and using it to create Ink! The Decimal Separator is ',' and the group separator is '.'. You can set the culture of the current thread to any culture you want: Thread.CurrentThread.CurrentCulture = System.Globalization.CultureInfo.InvariantCulture; Note that changing the culture also affects things like string comparison and sorting, date formats and parsing of dates and numbers. Here I made a complete example to make the difference clear. What should be chosen as country of visit if I take travel insurance for Asian Countries. Then, I want to convert every single element from this table to double type and I get an error. The most appropriate is to use the CultureInfo object InvariantCulture, which is culture-independent. Converting string to double in C# - Stack Overflow This forum has migrated to Microsoft Q&A. Use an overload of the Parse method that accepts an IFormatProvider. How do I programm a language independent double.tryparse? So, replace. " Convert.ToDouble (string)" function does not work. Find centralized, trusted content and collaborate around the technologies you use most. Applies to. C# | Convert.ToSingle(String, IFormatProvider) Method, C# | Convert.ToString(String, IFormatProvider) Method, C# | Convert.ToBoolean(String, IFormatProvider) Method, C# | Convert.ToByte(String, IFormatProvider) Method, C# | Convert.ToDateTime(String, IFormatProvider) Method, C# | Convert.ToChar(String, IFormatProvider) Method, C# | Convert.ToDecimal(String, IFormatProvider) Method, C# | Convert.ToInt32(String, IFormatProvider) Method, C# | Convert.ToInt16(String, IFormatProvider) Method, C# | Convert.ToSByte(String, IFormatProvider) Method, A-143, 9th Floor, Sovereign Corporate Tower, Sector-136, Noida, Uttar Pradesh - 201305, We use cookies to ensure you have the best browsing experience on our website. period not comma, I can not write the decimal number in the textbox, parsing a string value to double with comma decimal seperator. So if you're running on a Swedish Windows installation you could use CultureInfo.CurrentCulture.. Or you could specify the culture directly in code: Double x= Convert.ToDouble ( "20,13" , new CultureInfo ("sv-SE"); I have this function in my toolbelt since years ago (all the function and variable names are messy and mixing Spanish and English, sorry for that). [2] - When I read the GitHub issue - [the] decimal separator in czech locale is a , [and] not ." and then treat that as a decimal, otherwise just pass the non-double value along. Hope this saves few seconds for someone. no thousands separators), I'd String.Replace() the comma with a dot and do the rest as you did. No matter if there will be only number or lot of "garbage" letters. Any recommendation? Use this overload of double.TryParse to specify allowed formats: Double.TryParse Method (String, NumberStyles, IFormatProvider, Double%). decimal point. Its like the language of the programming language itself. For example, if you set AllowDecimalPoint, but the string contains a leading sign - you will get an error. Some real scenarios can get much more complex and will need additional research, but for now, this article should be good enough for understanding some niceties of conversion and might help beginners. It can be used in almost any method in the System.Globalization namespace that requires a culture. " on all systems " is far beyond my span of control. Some information relates to prerelease product that may be substantially modified before its released. To learn more, see our tips on writing great answers. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. If you replace . Unlike culture-sensitive data, which is subject to change by user customization or by updates to the .NET Framework or the operating system, invariant culture data is stable over time and across installed cultures and cannot be customized by users. Or parse in a different culture? It doesnt work as expected. How can I specify different theory levels for different atoms in Gaussian? static void Main(string[] args) { NumberFormatInfo nfi = new NumberFormatInfo(); nfi.NumberDecimalSeparator = ". But an exception happens when string doesnt contains "." When you display convert to the native type and then format for the user's culture. It, almost, goes without saying that using a column with a datatype that matches the data would be even better (but sometimes legacy applies). This one works for me. * Even in the same language, Switzerland and Germany for example use "." How to run HTML at runtime in C# using azure function? Thanks for contributing an answer to Stack Overflow! with , it should work as expected: You can parse your doubles using overloaded method which takes culture as a second parameter. So I referred to normalizing the string representation and then converting it using CultureInfo.InvariantCulture: You can check if the string contains a decimal point using. This article is being improved by another user right now. I am trying to write a function which basically converts an array of strings to an array of strings where all the doubles in the array are rounded to the number of decimalplaces i set. Most people already tried to answer your questions. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. For example, this line of code can cause a FormatException exception, if you specify a Sweden locale or the current thread culture is equal to it: For this, create a new project by clicking on the Visual Studio menu File -> New -> Project. Convert string to double in invariant culture in .NET 2.0. double d = Double.Parse(s,CultureInfo.Invariant Culture) - OK What culture does not accept "-" before a number? Asking for help, clarification, or responding to other answers. If you need a long, Int64.TryParse is also available: http://msdn.microsoft.com/en-us/library/system.int64.tryparse.aspx. ToDouble (numberString, new CultureInfo ("es")); Conclusion. Both rely on a web service which uses these coordinates with a full stop as the decimal. It can be used in almost any method in the System.Globalization namespace that requires a culture. using double.Parse: This happens because in the database it was stored as 65,89875 in the nvarchar column and when converted using English culture it becomes 6589875 since it considers , as a separator which is a decimal operator for German. I have accually tried to convert version with. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. What is the purpose of installing cargo-contract and using it to create Ink! One of such instances is converting the string representation of the binary value to a numeric value. Can you tell @whoah how to "change culture" for parsing? How to convert a byte array with hexadecimal contents to string with decimal in c#. Changing non-standard date timestamp format in CSV using awk/sed, Creating 8086 binary larger than 64 KiB using NASM or any other assembler. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. public static double ToDouble (string value, IFormatProvider provider); Return Value: This method returns a double-precision floating-point number which is equivalent to the number in value, or 0 (zero) if value is null. The invariant culture is culture-insensitive; it is associated with the English language but not with any country/region. to display: .net - What is the Invariant Culture? - Stack Overflow What are the pros and cons of allowing keywords to be abbreviated? The code below has the default Sweden culture for testing purposes and correctly converts string representations of values, which threw an exception before: As you can see, in the first example, an exception occurred during the converting of these values. Are there good reasons to minimize the number of keywords in a language? Specify CultureInfo.InvariantCulture in the call to Convert as the IFormatProvider (or use double.Parse) - the invariant culture uses "." as the decimal separator. Convert.ToDouble Method (System) | Microsoft Learn You can use overloaded Split which removes empty values: string[] someArray = a.Split(new char[] { '#' }, StringSplitOptions.RemoveEmptyEntries); Add a class as Public and use it very easily like convertToInt32(). Use the Convert overload that take an IFromatProvider d1 = Convert.ToDouble(s1, System.Globalization.CultureInfo.GetCultureInfo("en-US")); Marked as answer by Demaunt Monday, September 9, 2013 3:45 PM Monday, September 9, 2013 3:31 PM Reply | Quote 0 Sign in to vote There is no single solution for all cultures, you have to first detect which culture is in use and then choose algorithm accordingly. 586), Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Testing native, sponsored banner ads on Stack Overflow (starting July 6), Temporary policy: Generative AI (e.g., ChatGPT) is banned, Asp MVC Convert ToDouble and InvariantCulture, Convert string with comma to float with dot, OrderBy a string converted to a double with culture problems using Linq. The invariant culture is culture-insensitive; it is associated with the English language but not with any country/region. Making statements based on opinion; back them up with references or personal experience. if you are displaying stuff to the user that is the output of the invariant culture (that is, 'in' the invariant culture), you are doing something wrong and don't understand invariant culture. rev2023.7.3.43523. Need to update code. Connect and share knowledge within a single location that is structured and easy to search. To treat both , and . As a result, the conventions of the string with one culture might fail when using another. Making statements based on opinion; back them up with references or personal experience. Specifically, you won't be caught out by different uses of commas and points in the string forms of numbers, or with odd case conversions. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. http://msdn2.microsoft.com/en-us/library/system.iformatprovider(VS.71).aspx, http://msdn2.microsoft.com/en-us/library/system.globalization.cultureinfo.createspecificculture.aspx. Being able to use the same culture each time is very important in several flows, for example, serialization: you can have 1,1 value in one culture and 1.1 in another. Below programs illustrate the use of Convert.ToDouble(String, IFormatProvider) Method: You will be notified via email once the article is available for improvement. Can I use MongoDB 3.6 or later with Unity 2018.4? Visit Microsoft Q&A to post new questions. - my immediate thought was oh, I shouldve used the invariant culture.. https://msdn.microsoft.com/en-us/library/4c5zdc6a(v=vs.100).aspx. Continue with Recommended Cookies. CA1305: Specify IFormatProvider (code analysis) - .NET In this case you can use InvariantCulture (What is the invariant culture) e.g. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Jon 586), Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Testing native, sponsored banner ads on Stack Overflow (starting July 6), Temporary policy: Generative AI (e.g., ChatGPT) is banned, CultureInfo.InvariantCulture in plain english, How does CultureInfo.InvariantCulture and DateTime to String works. Convert.ToDouble ? - C# / C Sharp What is the best way to visualise such data? It then parses the string and displays its value by using the formatting conventions of the French (France) and German (Germany) cultures. How do I parse a string with a decimal point to a double? The invariant culture is a special culture which is useful because it will not change. Were sorry. how can I convert a string (json) to look like another string, How I can write string for default value with fluent api in SQL Server, How to create List from a string by replacing the character with range of numbers in better way. "; value = Double.Parse("1.000,05", ciClone);Console.WriteLine("The value is {0}", value);}, catch (Exception e) {Console.WriteLine(e);}}}. Keep values when subtracting gridview rows? Cant convert string( negative decimal) to double If you always serialize using. with a , how is that done. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. : double val = Convert.ToDouble("545.0", CultureInfo.InvariantCulture); CultureInfo is in the System.Globalization namespace. Perhaps it's just a legitimate input error? The objects returned by properties such as CompareInfo, DateTimeFormat, and NumberFormat also reflect the string comparison and formatting conventions of the invariant culture. Twitter Using the invariant culture defaults to using the dot as a decimal separator. For non winforms apps use: var currDecSeparator = Thread.CurrentThread.CurrentCulture.NumberFormat.NumberDecimalSeparator; This does not work when you use '.' To learn more, see our tips on writing great answers. true if s was converted successfully; otherwise, false.. This might lead to some issues with thousand separators. In your string I see: 15.5859949000000662452.23862099999999 which is not a double (it has two decimal points). Did you make this project? In .NET Core 3.0 and later, values that are too large to represent are rounded to PositiveInfinity or NegativeInfinity . The objects returned by properties such as CompareInfo, DateTimeFormat, and NumberFormat also reflect the string comparison and formatting conventions of the invariant culture. Valid white-space characters have the Unicode values U+0009, U+000A, U+000B, U+000C, U+000D, and U+0020.Any - that all styles except AllowHexSpecifier are used; this is a composite number style; Currency - that all styles except AllowExponent and AllowHexSpecifier are used; this is a composite number style; Float - that the AllowLeadingWhite, AllowTrailingWhite, AllowLeadingSign, AllowDecimalPoint, and AllowExponent styles are used; this is a composite number style; HexNumber - that the AllowLeadingWhite, AllowTrailingWhite, and AllowHexSpecifier styles are used; this is a composite number style; Integer - that the AllowLeadingWhite, AllowTrailingWhite, and AllowLeadingSign styles are used; this is a composite number style; None - that the string does not have elements, such as leading or trailing whitespace, thousands of separators, or a decimal separator, only integral decimal digits; Number - that the AllowLeadingWhite, AllowTrailingWhite, AllowLeadingSign, AllowTrailingSign, AllowDecimalPoint, and AllowThousands styles are used; this is a composite number style. Is the executive branch obligated to enforce the Supreme Court's decision on affirmative action? Convert double 0,10 to string with preserving 0 after last digit or convert double to string the way it is, How to output a Double as a String to x decimal places with no trailing zeroes, How to convert a complete object with its name to a json string, How to convert Console.ReadLine() to double in simple calculator ? or vice versa when needed. Connect and share knowledge within a single location that is structured and easy to search. Remarks. Does anyone have a simple and efficient solution for this? I edited your answer to be explicit. Looking for advice repairing granite stair tiles. One of your values is incorrect, because it contains two dots: 3) Your array has an empty value at the end, which is an incorrect double. Youll be auto redirected in 1 second. @alan-mattano this solution is for a specific problem. Ive included some sample code that uses this strategy. Convert.ToDouble that takes culture into account. Looking for advice repairing granite stair tiles, Is Linux swap still needed with Ubuntu 22.04. The current culture can change from one user to another, or even from one run to another, so you can't rely on it staying the same. How to convert string to double with proper cultureinfo. My advice is, as David A. Kean suggests, to parse the user input with the current culture:double.Parse(doubleToParse, CultureInfo.CurrentCulture); If you need to store the data in text format, use String.Format(IFormatProvider) or Double.ToString(String, IFormatProvider) where the IFormatProvider parameter is CultureInfo.InvariantCulture.

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