问题
I want to change persian numbers which are saved in variable like this :
string Value="۱۰۳۶۷۵۱";
to
string Value="1036751";
How can I use easy way like culture info to do this please?
my sample code is:
List<string> NERKHCOlist = new List<string>();
NERKHCOlist = ScrappingFunction(NERKHCO, NERKHCOlist);
int NERKHCO_Price = int.Parse(NERKHCOlist[0]);//NERKHCOlist[0]=۱۰۳۶۷۵۱
<= So it can not Parsed it to int
And This is in my function which retun a list with persian digits inside list items
protected List<string> ScrappingFunction(string SiteAddress, List<string> NodesList)
{
string Price = "null";
List<string> Targets = new List<string>();
foreach (var path in NodesList)
{
HtmlNode node = document.DocumentNode.SelectSingleNode(path.ToString());//recognizing Target Node
Price = node.InnerHtml;//put text of target node in variable(PERSIAN DIGITS)
Targets.Add(Price);
}
return Targets;
}
回答1:
I suggest two approaches to handle this issue(I Create an extension method for each of them):
1.foreach and replace
public static class MyExtensions
{
public static string PersianToEnglish(this string persianStr)
{
Dictionary<char, char> LettersDictionary = new Dictionary<char, char>
{
['۰'] = '0',['۱'] = '1',['۲'] = '2',['۳'] = '3',['۴'] = '4',['۵'] = '5',['۶'] = '6',['۷'] = '7',['۸'] = '8',['۹'] = '9'
};
foreach (var item in persianStr)
{
persianStr = persianStr.Replace(item, LettersDictionary[item]);
}
return persianStr;
}
}
2.Dictionary.Aggregate
public static class MyExtensions
{
public static string PersianToEnglish(this string persianStr)
{
Dictionary<string, string> LettersDictionary = new Dictionary<string, string>
{
["۰"] = "0",["۱"] = "1",["۲"] = "2",["۳"] = "3",["۴"] = "4",["۵"] = "5",["۶"] = "6",["۷"] = "7",["۸"] = "8",["۹"] = "9"
};
return LettersDictionary.Aggregate(persianStr, (current, item) =>
current.Replace(item.Key, item.Value));
}
}
More info about Dictionary.Aggregate: Microsoft
Usage:
string result = "۱۰۳۶۷۵۱".PersianToEnglish();
回答2:
Simply Use the code below :
private string toPersianNumber(string input)
{
string[] persian = new string[10] { "۰", "۱", "۲", "۳", "۴", "۵", "۶", "۷", "۸", "۹" };
for (int j=0; j<persian.Length; j++)
input = input.Replace(persian[j], j.ToString());
return input;
}
回答3:
USE Culture To convert the number from any language to any language
Functions:
public static string ConvertDigitChar(this string str, CultureInfo source, CultureInfo destination)
{
for (int i = 0; i <= 9; i++)
{
str = str.Replace(source.NumberFormat.NativeDigits[i], destination.NumberFormat.NativeDigits[i]);
}
return str;
}
public static string ConvertDigitChar(this int digit, CultureInfo destination)
{
string res = digit.ToString();
for (int i = 0; i <= 9; i++)
{
res = res.Replace(i.ToString(), destination.NumberFormat.NativeDigits[i]);
}
return res;
}
How to use the functions:
var fa = CultureInfo.GetCultureInfoByIetfLanguageTag("fa");
var en = CultureInfo.GetCultureInfoByIetfLanguageTag("en");
string str = "۰0۱1۲2۳3۴4۵5۶6۷7۸8۹9";
string r1 = str.ConvertDigitChar(en, fa);
string r2 = str.ConvertDigitChar(fa, en);
int i = 123456789;
string r3 = i.ConvertDigitChar(fa);
Result:
r1: "۰۰۱۱۲۲۳۳۴۴۵۵۶۶۷۷۸۸۹۹"
r2: "00112233445566778899"
r3: "۰۱۲۳۴۵۶۷۸۹"
回答4:
You need to parse them first, using e.g. Int32.Parse() with the correct cultural specifier. Once you have it as a plain integer, it's simply a matter of calling ToString() on it, again with the correct cultural specifier.
An alternative solution is to walk the string character by character and just replace any character that is a Persian digit with the corresponding (west) arabic numeral. Other characters can then be preserved as-is, if required.
If the string really contains a number, you should go with the integer parsing method. If it is not just a number, but really a phone number, serial number etc, you might need to use the replacing algorithm instead.
回答5:
You can manually convert them like so
char[][] numbers = new char[][]
{
"0123456789".ToCharArray(),"persian numbers 0-9 here".ToCharArray()
};
public void Convert(string problem)
{
for (int x = 0; x <= 9; x++)
{
problem.Replace(numbers[0][x], numbers[1][x]);
}
}
I don't know the persian numbers so you will have to add them into the char array.
回答6:
I wrote this extension method to convert Arabic and Persian digits in an string to its Latin representation
public static class Extensions
{
public static string ConvertDigitsToLatin(this string s)
{
var sb = new StringBuilder();
for (int i = 0; i < s.Length; i++)
{
switch (s[i])
{
//Persian digits
case '\u06f0':
sb.Append('0');
break;
case '\u06f1':
sb.Append('1');
break;
case '\u06f2':
sb.Append('2');
break;
case '\u06f3':
sb.Append('3');
break;
case '\u06f4':
sb.Append('4');
break;
case '\u06f5':
sb.Append('5');
break;
case '\u06f6':
sb.Append('6');
break;
case '\u06f7':
sb.Append('7');
break;
case '\u06f8':
sb.Append('8');
break;
case '\u06f9':
sb.Append('9');
break;
//Arabic digits
case '\u0660':
sb.Append('0');
break;
case '\u0661':
sb.Append('1');
break;
case '\u0662':
sb.Append('2');
break;
case '\u0663':
sb.Append('3');
break;
case '\u0664':
sb.Append('4');
break;
case '\u0665':
sb.Append('5');
break;
case '\u0666':
sb.Append('6');
break;
case '\u0667':
sb.Append('7');
break;
case '\u0668':
sb.Append('8');
break;
case '\u0669':
sb.Append('9');
break;
default:
sb.Append(s[i]);
break;
}
}
return sb.ToString();
}
}
回答7:
Here my code convert Persian digits in variable to English , By extension method(Can use with dot after your expression)
private static readonly string[] pn = { "۰", "۱", "۲", "۳", "۴", "۵", "۶", "۷", "۸", "۹" };
private static readonly string[] en = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" };
public static string ToEnglishNumber(this string strNum)
{
string chash = strNum;
for (int i = 0; i < 10; i++)
chash = chash.Replace(pn[i], en[i]);
return chash;
}
public static string ToEnglishNumber(this int intNum)
{
string chash = intNum.ToString();
for (int i = 0; i < 10; i++)
chash = chash.Replace(pn[i], en[i]);
return chash;
}
and when you want to use this code have to write : txt1.Value.ToEnglishNumber();
回答8:
The Saeed's Solution is Ok,But For Double Variables you Must Also replace "٫" Character To "." , So You Can Use :
private string ToEnglishNumber(string strNum)
{
string[] pn = { "۰", "۱", "۲", "۳", "۴", "۵", "۶", "۷", "۸", "۹", "٫" };
string[] en = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9","." };
string chash = strNum;
for (int i = 0; i < 11; i++)
chash = chash.Replace(pn[i], en[i]);
return chash;
}
回答9:
public static string ChangeNumberToEnglishNumber(string value)
{
string result=string.Empty;
foreach (char ch in value)
{
try
{
double convertedChar = char.GetNumericValue(ch);
if (convertedChar >= 0 && convertedChar <= 9)
{
result += convertedChar.ToString(CultureInfo.InvariantCulture);
}
else
{
result += ch;
}
}
catch (Exception e)
{
result += ch;
}
}
return result;
}
回答10:
You can use the Windows.Globalization.NumberFormatting.DecimalFormatter class to parse the string. This will parse strings in any of the supported numeral systems (as long as it is internally coherent).
回答11:
public static string ToEnglishNumber(string input)
{
var englishnumbers = new Dictionary<string, string>()
{
{"۰","0" }, {"۱","1" }, {"۲","2" }, {"۳","3" },{"۴","4" }, {"۵","5" },{"۶","6" }, {"۷","7" },{"۸","8" }, {"۹","9" },
{"٠","0" }, {"١","1" }, {"٢","2" }, {"٣","3" },{"٤","4" }, {"٥","5" },{"٦","6" }, {"٧","7" },{"٨","8" }, {"٩","9" },
};
foreach (var numbers in englishnumbers)
input = input.Replace(numbers.Key, numbers.Value);
return input;
}
回答12:
Useful and concise:
public static class Utility
{
// '۰' = 1632
// '0' = 48
// ------------
// 1632 => '۰'
//- 1584
//--------
// 48 => '0'
public static string GetEnglish(this string input)
{
char[] persianDigitsAscii = input.ToCharArray(); //{ 1632, 1633, 1634, 1635, 1636, 1637, 1638, 1639, 1640, 1641 };
string output = "";
for (int k = 0; k < persianDigitsAscii.Length; k++)
{
persianDigitsAscii[k] = (char) (persianDigitsAscii[k] - 1584);
output += persianDigitsAscii[k];
}
return output;
}
}
回答13:
Use this extension ,also for arabic keyboard for example : "۵", "٥" or "۴", "٤"
static char[][] persianChars = new char[][]
{
"0123456789".ToCharArray(),"۰۱۲۳۴۵۶۷۸۹".ToCharArray()
};
static char[][] arabicChars = new char[][]
{
"0123456789".ToCharArray(),"٠١٢٣٤٥٦٧٨٩".ToCharArray()
};
public static string toPrevalentDigits(this string src)
{
if (string.IsNullOrEmpty(src)) return null;
for (int x = 0; x <= 9; x++)
{
src = src.Replace(persianChars[1][x], persianChars[0][x]);
}
for (int x = 0; x <= 9; x++)
{
src = src.Replace(arabicChars[1][x], arabicChars[0][x]);
}
return src;
}
回答14:
use this static class to change normalize number easily:
public static class Numbers
{
public static string ChangeToEnglishNumber(this string text)
{
var englishNumbers = string.Empty;
for (var i = 0; i < text.Length; i++)
{
if(char.IsNumber(text[i])) englishNumbers += char.GetNumericValue(text, i);
else englishNumbers += text[i];
}
return englishNumbers;
}
}
Sample:
string test = "۱۰۳۶۷۵۱".ChangeToEnglishNumber(); // => 1036751
来源：https://stackoverflow.com/questions/18340808/how-to-convert-persian-digits-in-variable-to-english-digits-using-culture