Thanks for taking the time to assist me with my problem.
In the code I'm writing, I'm iterating through a table, I get the appropriate values (confirmed it using the debugger) and I'm parsing them to the appropriate types before and finally I add them to an Object to be serialized into XML.
However, I bumped into a problem and that is I can't seem to find a way to parse the string into a decimal value. Take a look:
if (DateTime.TryParse(dateString, culture, styles, out date))
{
decimal LastValue;
string vrednost = String.Format("{0:0,0.0}",
row.SelectSingleNode("td[2]").InnerText);
if (Decimal.TryParse(vrednost, out LastValue))
list.Add(new StockEntry
{
Date = date,
PoslednaCena = LastValue
...
}
Note that the value of vrednost is 4.451,00 and I suspect that if I convert it to 4,451.00 it will get parsed.
I've succeeded in parsing date into the appropriate datetime value. However, the value of LastValue is always 0. I've exhausted all the resources that I know of. Do you have any idea how to solve my problem?
Thank you in advance!
This formatting will do nothing because you can't format strings like this. You have to use parse method with additional parameters and specify your own format
string s2 = "4.451,00";
NumberFormatInfo numberFormatInfo = new NumberFormatInfo();
numberFormatInfo.NumberDecimalSeparator = ",";
numberFormatInfo.NumberGroupSeparator = ".";
var d = decimal.Parse(s2, numberFormatInfo);
I think that your problem might be due to the culture used for the parsing. Try using CultureInfo.InvariantCulture for your parsing. It should work with "," as thousands separator and "." as decimal separator.
Decimal.TryParse(vrednost, NumberStyles.Number, CultureInfo.InvariantCulture, out LastValue);
If you want to swap them you could use another culture. Italian, for instance, works with your format (not sure about the others), so your code for "4.451,00" would look like:
Decimal.TryParse(vrednost, NumberStyles.Number, CultureInfo.GetCultureInfo("it"), out LastValue);
If you want to use a custom culture instead of forcing some culture which does what you want you can simply create your NumberFormatInfo class and pass it to the parse method.
NumberFormatInfo decimalNumber = new NumberFormatInfo();
decimalNumber.NumberDecimalSeparator = ",";
decimalNumber.NumberGroupSeparator = ".";
Decimal.TryParse(vrednost, NumberStyles.Number, decimalNumber, out LastValue);
Your row.SelectSingleNode("td[2]").InnerText is a string and you are trying to format it like a decimal.
Try parsing it directly:
decimal LastValue;
string vrednost = row.SelectSingleNode("td[2]").InnerText;
if (Decimal.TryParse(vrednost, out LastValue))
Check your cultureinfo at first and set it appropriately.
CultureInfo MyUsersCulture = Thread.CurrentThread.CurrentCulture;
Console.WriteLine("The culture: "+ MyUsersCulture.Name);
Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");
ConsoleWriteLine("The culture: " + Thread.CurrentThread.CurrentCulture);
Related
I do have values and currency symbols in my database (BRL, USD and etc) and would like use that to write a formatted string, something like:
int number = 100;
string currencySymbol = "USD";
string formattedNumber = number.ToString("C", currencySymbol);
I've tried to cast currencySymbol to cultureInfo but it is not possible as written in this post get CultureInfo from a Currency Code?
I believe you are looking to use custom currency symbols in formatting. You can do:
int number = 100;
var numberFormatInfo = (NumberFormatInfo) NumberFormatInfo.CurrentInfo.Clone();
numberFormatInfo.CurrencySymbol = "USD";
string formattedNumber = number.ToString("C", numberFormatInfo);
A better approach would be to store different culture information ("en-US") in database and then retrieve the culture based on it and use its predefined currency symbol. But it will not be same as yours. In case of US, it is $ and not USD.
I am having some problems converting string to decimal values with decimal.parse.
This is the line of code I have:
fixPrice = decimal.Parse(mItemParts.Groups["price"].Value.Replace("$", "").Replace(" ", "").Replace("usd", ""));
The value from which I am trying to convert is: '$779.99'
Then once the parsing to decimal happens, I am getting this value: 77999.
I would like to get 779.99 instead of 77999.
Thanks in advance, Laziale
Regex included: "#"\[^\""]+?)\""[^~]+?\]+?src=\""(?[^\""]+?)\""[^>]+?title=\""(?[^\""]+?)\""[^~]+?price\"">(?[^\<]+?)\<[^~]+?\(?[^\<]+?)\
I would use Decimal.TryParse():
decimal parsedDecimal = 0;
string yourCurrency = "$779.99";
bool didParse = Decimal.TryParse(yourCurrency,
NumberStyles.Currency,
new CultureInfo("en-US"), out parsedDecimal);
if(didParse) {
// Parse succeeded
}
else {
// Parse failed
}
It appears that you are running this in a culture where '.' is the group separator, and ',' is the decimal separator. To get around that, use the Parse overload that takes a CultureInfo:
fixPrice = decimal.Parse(stringExpression, CultureInfo.InvariantCulture);
Also look into the NumberStyles enum so you don't have to worry about currency signs yourself:
fixPrice = decimal.Parse(stringExpression, NumberStyles.Currency, new CultureInfo("en-US"));
Pass a CultureInfo instance of the culture you are parsing from.
CultureInfo inherits from IFormatProvider
edit:
Here is a sample for the conversion
Decimal.Parse(yourValue, NumberStyles.AllowCurrencySymbol |
NumberStyles.AllowDecimalPoint |
NumberStyles.AllowThousands,
CultureInfo.InvariantCulture);
This works for me:
string decStr = "$779.99";
CultureInfo ci = new CultureInfo("en-US");
decimal fixPrice = decimal.Parse(decStr, NumberStyles.Currency, ci);
I want to convert "372551.40" to decimal. But I need to see it after converting this format 372.551,40.
To convert it to decimal, you can use:
decimal decimalValue = 0.0;
decimalValue = decimal.Parse("372551.40");
or
decimal.TryParse("372551.40", out decimalValue);
To display it in a specific format you can do:
CultureInfo tr = new CultureInfo("tr-TR");
string formattedValue = decimalValue.ToString("c", tr);
//result will be 372.551,40 YTL
formattedValue = decimalValue.ToString("0,0.00", tr);
//result will be 372.551,40
string value;
Decimal number;
value = "16,523,421";
if (!Decimal.TryParse(value,out number))
{
// set it to something if the "Value" is not a number
number = -1;
}
Do the following:
string s = "372551.40";
CultureInfo cultureInfo = CultureInfo.InvariantCulure; //Use relevant culture in which your number is formatted. In this case InvariantCulture would do.
decimal d;
bool succesful = Decimal.TryParse(s, NumberStyles.Number, cultureInfo, out d); //it will try to parse the string according to the specified culture.;
If you have a succesful parse, then d will store the numeric value represented by s as a decimal value which you can output into any formatted string and culture the ToString() or Format.String().
Note that if the culture in which the number represented by s is the current system culture, then you can use the TryParse(string s, out decimal d) overload where it is not necessary to specify NumberStyles and IFormatProvider.
Something like this?
string s = "372551.40";
decimal d;
if (decimal.TryParse(s, out d))
{
var culture = new CultureInfo("de-DE");
var result = d.ToString("0,0.00", culture);
// result is "372.551,40"
}
You can also use the current culture instead of hard-coding one like I did.
Hope this helps,
John
Use decimal.Parse() to make it a decimal. Then you have many formatting options.
The display as you mentioned is dependent on the culture setting.
Make your new CultureInfo and in the NumberFormat, you will have to modify some settings like Decimal Separator as , and Thousands Separator as . and provide this to the ToString method of the variable holding the decimal value.
This should display the value as 372.551,40
You can use .Replace
string string 1 = "372,551.40";
string1.Replace(",","");
decimalVal = System.Convert.ToDecimal(StringVal);
//shows 372551.40
You can always throw that into a for loop if you are playign with a ton of numbers.
You can find more in depth info and some examples on MSDN
The overload of decimal.Parse that takes an IFormatProvider will allow you to parse strings containing numbers with periods as decimal point symbols (in case the standard is a comma in your culture).
You can use ToString on the resulting decimal to format it with a comma by passing in an appropriate IFormatProvider. Both CulturInfo and NumberFormatInfo implement IFormatProvider.
You can get an instance of CultureInfo with the following code (this one is for English in Australia).
new CultureInfo("en-AU")
Also note that decimal.TryParse is a good alternative to the decimal.Parse method if you expect incorrectly formatted strings as it will allow you to handle them without an exception being raised.
The following code should give you the desired result (you wrote in one of the comments that the target system is SAP and that the culture is probably German (de-DE)).
var yourString = "372551.40";
var yourDecimal = decimal.Parse(yourString, CultureInfo.InvariantCulture);
var yourFormattedDecimal = yourDecimal.ToString(new CultureInfo("de-DE"));
From MSDN:
string value;
decimal number;
// Parse an integer with thousands separators.
value = "16,523,421";
number = Decimal.Parse(value);
Console.WriteLine("'{0}' converted to {1}.", value, number);
// Displays:
// 16,523,421' converted to 16523421.
Cheers
You can create custom NumberFormatInfo:
string s = "372551.40";
var dec = decimal.Parse(s, CultureInfo.InvariantCulture);
var nfi = new CultureInfo("en-US", false).NumberFormat;
nfi.NumberGroupSeparator = ".";
nfi.NumberDecimalSeparator = ",";
var res = dec.ToString("n", nfi);
var resDecimal = decimal.Parse(res, nfi);
Output is exactly what you need: 372.551,40
I am trying to convert my string formatted value to date type with format dd/MM/yyyy.
this.Text="22/11/2009";
DateTime date = DateTime.Parse(this.Text);
What is the problem ?
It has a second override which asks for IFormatProvider. What is this? Do I need to pass this also? If Yes how to use it for this case?
Edit
What are the differences between Parse and ParseExact?
Edit 2
Both answers of Slaks and Sam are working for me, currently user is giving the input but this will be assured by me that they are valid by using maskTextbox.
Which answer is better considering all aspects like type saftey, performance or something you feel like
Use DateTime.ParseExact.
this.Text="22/11/2009";
DateTime date = DateTime.ParseExact(this.Text, "dd/MM/yyyy", null);
You need to call ParseExact, which parses a date that exactly matches a format that you supply.
For example:
DateTime date = DateTime.ParseExact(this.Text, "dd/MM/yyyy", CultureInfo.InvariantCulture);
The IFormatProvider parameter specifies the culture to use to parse the date.
Unless your string comes from the user, you should pass CultureInfo.InvariantCulture.
If the string does come from the user, you should pass CultureInfo.CurrentCulture, which will use the settings that the user specified in Regional Options in Control Panel.
Parsing a string representation of a DateTime is a tricky thing because different cultures have different date formats. .Net is aware of these date formats and pulls them from your current culture (System.Threading.Thread.CurrentThread.CurrentCulture.DateTimeFormat) when you call DateTime.Parse(this.Text);
For example, the string "22/11/2009" does not match the ShortDatePattern for the United States (en-US) but it does match for France (fr-FR).
Now, you can either call DateTime.ParseExact and pass in the exact format string that you're expecting, or you can pass in an appropriate culture to DateTime.Parse to parse the date.
For example, this will parse your date correctly:
DateTime.Parse( "22/11/2009", CultureInfo.CreateSpecificCulture("fr-FR") );
Of course, you shouldn't just randomly pick France, but something appropriate to your needs.
What you need to figure out is what System.Threading.Thread.CurrentThread.CurrentCulture is set to, and if/why it differs from what you expect.
Although the above solutions are effective, you can also modify the webconfig file with the following...
<configuration>
<system.web>
<globalization culture="en-GB"/>
</system.web>
</configuration>
Ref : Datetime format different on local machine compared to production machine
You might need to specify the culture for that specific date format as in:
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-GB"); //dd/MM/yyyy
this.Text="22/11/2009";
DateTime date = DateTime.Parse(this.Text);
For more details go here:
http://msdn.microsoft.com/en-us/library/5hh873ya.aspx
Based on this reference, the next approach worked for me:
// e.g. format = "dd/MM/yyyy", dateString = "10/07/2017"
var formatInfo = new DateTimeFormatInfo()
{
ShortDatePattern = format
};
date = Convert.ToDateTime(dateString, formatInfo);
After spending lot of time I have solved the problem
string strDate = PreocessDate(data);
string[] dateString = strDate.Split('/');
DateTime enter_date = Convert.ToDateTime(dateString[1]+"/"+dateString[0]+"/"+dateString[2]);
private DateTime ConvertToDateTime(string strDateTime)
{
DateTime dtFinaldate; string sDateTime;
try { dtFinaldate = Convert.ToDateTime(strDateTime); }
catch (Exception e)
{
string[] sDate = strDateTime.Split('/');
sDateTime = sDate[1] + '/' + sDate[0] + '/' + sDate[2];
dtFinaldate = Convert.ToDateTime(sDateTime);
}
return dtFinaldate;
}
use this to convert string to datetime:
Datetime DT = DateTime.ParseExact(STRDATE,"dd/MM/yyyy",System.Globalization.CultureInfo.CurrentUICulture.DateTimeFormat)
Just like someone above said you can send it as a string parameter but it must have this format: '20130121' for example and you can convert it to that format taking it directly from the control. So you'll get it for example from a textbox like:
date = datetextbox.text; // date is going to be something like: "2013-01-21 12:00:00am"
to convert it to: '20130121' you use:
date = date.Substring(6, 4) + date.Substring(3, 2) + date.Substring(0, 2);
so that SQL can convert it and put it into your database.
Worked for me below code:
DateTime date = DateTime.Parse(this.Text, CultureInfo.CreateSpecificCulture("fr-FR"));
Namespace
using System.Globalization;
You can use also
this.Text = "22112009";
DateTime newDateTime = new DateTime(Convert.ToInt32(this.Text.Substring(4, 4)), // Year
Convert.ToInt32(this.Text.Substring(2,2)), // Month
Convert.ToInt32(this.Text.Substring(0,2)));// Day
Also I noticed sometimes if your string has empty space in front or end or any other junk char attached in DateTime value then also we get this error message
Is it true that String.Format works 2 ways:
if we use built-in format such as C, N, P.... it will take locale settings into account?
if we use custom format code such as #,##0.000 it will NOT take locale settings into account?
In my code, I use method like this
String.Format("{0:#.##0,000}", value);
because my country use comma as decimal separator
but the result still is: 1,234.500 as if it consider dot as decimal separator.
Please help!
You want to use CultureInfo:
value.ToString("N", new CultureInfo("vn-VN"));
Using String.Format:
String.Format(new CultureInfo("vi-VN"), "N", value);
Since you're in Hanoi (from profile), I used Vietnam's code, which is vn-VN.
This works. The formatted value is 123.456,789 which is correct per es-ES
IFormatProvider iFormatProvider = new System.Globalization.CultureInfo("es-ES");
var value = 123456.789001m;
string s = value.ToString("#,##0.000", iFormatProvider);
string s2 = string.Format(iFormatProvider, "{0:#,##0.000}", value);
FormattableString fs = $"{value:#,##0.000}";
string s3 = fs.ToString(iFormatProvider);
Note that the , and . are using a 'standard' en-US style, but .ToString() and string.Format() with a format provider does the right thing.
You should make sure your thread uses the correct culture:
Thread.CurrentThread.CurrentCulture = CultureInfo.CurrentCulture
Thread.CurrentThread.CurrentUICulture = CultureInfo.CurrentCulture
FrameworkElement.LanguageProperty.OverrideMetadata(GetType(FrameworkElement), New FrameworkPropertyMetadata(XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)))