TimeSpan.TryParseExact Method
Definition
Important
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Converts the string representation of a time interval to its TimeSpan equivalent, and returns a value that indicates whether the conversion succeeded. The format of the string representation must match a specified format exactly.
Overloads
TryParseExact(ReadOnlySpan<Char>, String[], IFormatProvider, TimeSpanStyles, TimeSpan) |
Converts the specified span representation of a time interval to its TimeSpan equivalent by using the specified formats, culture-specific format information and styles. The format of the string representation must match one of the specified formats exactly. |
TryParseExact(String, String, IFormatProvider, TimeSpanStyles, TimeSpan) |
Converts the string representation of a time interval to its TimeSpan equivalent by using the specified format, culture-specific format information and styles. The format of the string representation must match the specified format exactly. |
TryParseExact(ReadOnlySpan<Char>, ReadOnlySpan<Char>, IFormatProvider, TimeSpanStyles, TimeSpan) |
Converts the specified span representation of a time interval to its TimeSpan equivalent by using the specified format, culture-specific format information, and styles, and returns a value that indicates whether the conversion succeeded. The format of the string representation must match the specified format exactly. |
TryParseExact(String, String[], IFormatProvider, TimeSpan) |
Converts the specified string representation of a time interval to its TimeSpan equivalent by using the specified formats and culture-specific format information. The format of the string representation must match one of the specified formats exactly. |
TryParseExact(String, String[], IFormatProvider, TimeSpanStyles, TimeSpan) |
Converts the specified string representation of a time interval to its TimeSpan equivalent by using the specified formats, culture-specific format information and styles. The format of the string representation must match one of the specified formats exactly. |
TryParseExact(ReadOnlySpan<Char>, String[], IFormatProvider, TimeSpan) |
Converts the specified span representation of a time interval to its TimeSpan equivalent by using the specified formats and culture-specific format information. The format of the string representation must match one of the specified formats exactly. |
TryParseExact(ReadOnlySpan<Char>, ReadOnlySpan<Char>, IFormatProvider, TimeSpan) |
Converts the specified span representation of a time interval to its TimeSpan equivalent by using the specified format and culture-specific format information. The format of the string representation must match the specified format exactly. |
TryParseExact(String, String, IFormatProvider, TimeSpan) |
Converts the string representation of a time interval to its TimeSpan equivalent by using the specified format and culture-specific format information. The format of the string representation must match the specified format exactly. |
TryParseExact(ReadOnlySpan<Char>, String[], IFormatProvider, TimeSpanStyles, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the specified span representation of a time interval to its TimeSpan equivalent by using the specified formats, culture-specific format information and styles. The format of the string representation must match one of the specified formats exactly.
public:
static bool TryParseExact(ReadOnlySpan<char> input, cli::array <System::String ^> ^ formats, IFormatProvider ^ formatProvider, System::Globalization::TimeSpanStyles styles, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParseExact (ReadOnlySpan<char> input, string?[]? formats, IFormatProvider? formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
public static bool TryParseExact (ReadOnlySpan<char> input, string[] formats, IFormatProvider formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
public static bool TryParseExact (ReadOnlySpan<char> input, string[] formats, IFormatProvider? formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
static member TryParseExact : ReadOnlySpan<char> * string[] * IFormatProvider * System.Globalization.TimeSpanStyles * TimeSpan -> bool
Public Shared Function TryParseExact (input As ReadOnlySpan(Of Char), formats As String(), formatProvider As IFormatProvider, styles As TimeSpanStyles, ByRef result As TimeSpan) As Boolean
Parameters
- input
- ReadOnlySpan<Char>
A span containing the characters that represent a time interval to convert.
- formats
- String[]
An array of standard or custom format strings that define the acceptable formats of input
.
- formatProvider
- IFormatProvider
An object that supplies culture-specific formatting information.
- styles
- TimeSpanStyles
One or more enumeration values that indicate the style of input
.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by input
, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true
if input
was converted successfully; otherwise, false
.
Applies to
TryParseExact(String, String, IFormatProvider, TimeSpanStyles, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the string representation of a time interval to its TimeSpan equivalent by using the specified format, culture-specific format information and styles. The format of the string representation must match the specified format exactly.
public:
static bool TryParseExact(System::String ^ input, System::String ^ format, IFormatProvider ^ formatProvider, System::Globalization::TimeSpanStyles styles, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParseExact (string input, string format, IFormatProvider formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
public static bool TryParseExact (string? input, string? format, IFormatProvider? formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
public static bool TryParseExact (string? input, string format, IFormatProvider? formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
static member TryParseExact : string * string * IFormatProvider * System.Globalization.TimeSpanStyles * TimeSpan -> bool
Public Shared Function TryParseExact (input As String, format As String, formatProvider As IFormatProvider, styles As TimeSpanStyles, ByRef result As TimeSpan) As Boolean
Parameters
- input
- String
A string that specifies the time interval to convert.
- format
- String
A standard or custom format string that defines the required format of input
.
- formatProvider
- IFormatProvider
An object that provides culture-specific formatting information.
- styles
- TimeSpanStyles
One or more enumeration values that indicate the style of input
.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by input
, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true
if input
was converted successfully; otherwise, false
.
Examples
The following example uses the ParseExact(String, String, IFormatProvider) method to parse several string representations of time intervals using various format strings and cultures. It also uses the TimeSpanStyles.AssumeNegative value to interpret each string as a negative time interval. The output from the example illustrates that the TimeSpanStyles.AssumeNegative style affects the return value only when it is used with custom format strings.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
string intervalString, format;
TimeSpan interval;
CultureInfo culture = null;
// Parse hour:minute value with custom format specifier.
intervalString = "17:14";
format = "h\\:mm";
culture = CultureInfo.CurrentCulture;
if (TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval);
else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format);
// Parse hour:minute:second value with "g" specifier.
intervalString = "17:14:48";
format = "g";
culture = CultureInfo.InvariantCulture;
if (TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval);
else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format);
// Parse hours:minute.second value with custom format specifier.
intervalString = "17:14:48.153";
format = @"h\:mm\:ss\.fff";
culture = null;
if (TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval);
else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format);
// Parse days:hours:minute.second value with "G" specifier
// and current (en-US) culture.
intervalString = "3:17:14:48.153";
format = "G";
culture = CultureInfo.CurrentCulture;
if (TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval);
else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format);
// Parse days:hours:minute.second value with a custom format specifier.
intervalString = "3:17:14:48.153";
format = @"d\:hh\:mm\:ss\.fff";
culture = null;
if (TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval);
else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format);
// Parse days:hours:minute.second value with "G" specifier
// and fr-FR culture.
intervalString = "3:17:14:48,153";
format = "G";
culture = new CultureInfo("fr-FR");
if (TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval);
else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format);
// Parse a single number using the "c" standard format string.
intervalString = "12";
format = "c";
if (TimeSpan.TryParseExact(intervalString, format,
null, TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval);
else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format);
// Parse a single number using the "%h" custom format string.
format = "%h";
if (TimeSpan.TryParseExact(intervalString, format,
null, TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval);
else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format);
// Parse a single number using the "%s" custom format string.
format = "%s";
if (TimeSpan.TryParseExact(intervalString, format,
null, TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval);
else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format);
}
}
// The example displays the following output:
// '17:14' (h\:mm) --> -17:14:00
// '17:14:48' (g) --> 17:14:48
// '17:14:48.153' (h\:mm\:ss\.fff) --> -17:14:48.1530000
// '3:17:14:48.153' (G) --> 3.17:14:48.1530000
// '3:17:14:48.153' (d\:hh\:mm\:ss\.fff) --> -3.17:14:48.1530000
// '3:17:14:48,153' (G) --> 3.17:14:48.1530000
// '12' (c) --> 12.00:00:00
// '12' (%h) --> -12:00:00
// '12' (%s) --> -00:00:12
open System
open System.Globalization
do
// Parse hour:minute value with custom format specifier.
let intervalString = "17:14"
let format = "h\\:mm"
let culture = CultureInfo.CurrentCulture
match TimeSpan.TryParseExact(intervalString, format, culture, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"'{intervalString}' ({format}) --> {interval}"
| _ ->
printfn $"Unable to parse '{intervalString}' using format {format}"
// Parse hour:minute:second value with "g" specifier.
let intervalString = "17:14:48"
let format = "g"
let culture = CultureInfo.InvariantCulture
match TimeSpan.TryParseExact(intervalString, format, culture, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"'{intervalString}' ({format}) --> {interval}"
| _ ->
printfn $"Unable to parse '{intervalString}' using format {format}"
// Parse hours:minute.second value with custom format specifier.
let intervalString = "17:14:48.153"
let format = @"h\:mm\:ss\.fff"
let culture = null
match TimeSpan.TryParseExact(intervalString, format, culture, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"'{intervalString}' ({format}) --> {interval}"
| _ ->
printfn $"Unable to parse '{intervalString}' using format {format}"
// Parse days:hours:minute.second value with "G" specifier
// and current (en-US) culture.
let intervalString = "3:17:14:48.153"
let format = "G"
let culture = CultureInfo.CurrentCulture
match TimeSpan.TryParseExact(intervalString, format, culture, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"'{intervalString}' ({format}) --> {interval}"
| _ ->
printfn $"Unable to parse '{intervalString}' using format {format}"
// Parse days:hours:minute.second value with a custom format specifier.
let intervalString = "3:17:14:48.153"
let format = @"d\:hh\:mm\:ss\.fff"
let culture = null
match TimeSpan.TryParseExact(intervalString, format, culture, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"'{intervalString}' ({format}) --> {interval}"
| _ ->
printfn $"Unable to parse '{intervalString}' using format {format}"
// Parse days:hours:minute.second value with "G" specifier
// and fr-FR culture.
let intervalString = "3:17:14:48,153"
let format = "G"
let culture = new CultureInfo("fr-FR")
match TimeSpan.TryParseExact(intervalString, format, culture, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"'{intervalString}' ({format}) --> {interval}"
| _ ->
printfn $"Unable to parse '{intervalString}' using format {format}"
// Parse a single number using the "c" standard format string.
let intervalString = "12"
let format = "c"
match TimeSpan.TryParseExact(intervalString, format, null, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"'{intervalString}' ({format}) --> {interval}"
| _ ->
printfn $"Unable to parse '{intervalString}' using format {format}"
// Parse a single number using the "%h" custom format string.
let format = "%h"
match TimeSpan.TryParseExact(intervalString, format, null, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"'{intervalString}' ({format}) --> {interval}"
| _ ->
printfn $"Unable to parse '{intervalString}' using format {format}"
// Parse a single number using the "%s" custom format string.
let format = "%s"
match TimeSpan.TryParseExact(intervalString, format, null, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"'{intervalString}' ({format}) --> {interval}"
| _ ->
printfn $"Unable to parse '{intervalString}' using format {format}"
// The example displays the following output:
// '17:14' (h\:mm) --> -17:14:00
// '17:14:48' (g) --> 17:14:48
// '17:14:48.153' (h\:mm\:ss\.fff) --> -17:14:48.1530000
// '3:17:14:48.153' (G) --> 3.17:14:48.1530000
// '3:17:14:48.153' (d\:hh\:mm\:ss\.fff) --> -3.17:14:48.1530000
// '3:17:14:48,153' (G) --> 3.17:14:48.1530000
// '12' (c) --> 12.00:00:00
// '12' (%h) --> -12:00:00
// '12' (%s) --> -00:00:12
Imports System.Globalization
Module Example
Public Sub Main()
Dim intervalString, format As String
Dim interval As TimeSpan
Dim culture As CultureInfo = Nothing
' Parse hour:minute value with custom format specifier.
intervalString = "17:14"
format = "h\:mm"
culture = CultureInfo.CurrentCulture
If TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval)
Else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format)
End If
' Parse hour:minute:second value with "g" specifier.
intervalString = "17:14:48"
format = "g"
culture = CultureInfo.InvariantCulture
If TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval)
Else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format)
End If
' Parse hours:minute.second value with custom format specifier.
intervalString = "17:14:48.153"
format = "h\:mm\:ss\.fff"
culture = Nothing
If TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval)
Else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format)
End If
' Parse days:hours:minute.second value with "G" specifier
' and current (en-US) culture.
intervalString = "3:17:14:48.153"
format = "G"
culture = CultureInfo.CurrentCulture
If TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval)
Else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format)
End If
' Parse days:hours:minute.second value with a custom format specifier.
intervalString = "3:17:14:48.153"
format = "d\:hh\:mm\:ss\.fff"
culture = Nothing
If TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval)
Else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format)
End If
' Parse days:hours:minute.second value with "G" specifier
' and fr-FR culture.
intervalString = "3:17:14:48,153"
format = "G"
culture = New CultureInfo("fr-FR")
If TimeSpan.TryParseExact(intervalString, format,
culture, TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval)
Else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format)
End If
' Parse a single number using the "c" standard format string.
intervalString = "12"
format = "c"
If TimeSpan.TryParseExact(intervalString, format,
Nothing, TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval)
Else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format)
End If
' Parse a single number using the "%h" custom format string.
format = "%h"
If TimeSpan.TryParseExact(intervalString, format,
Nothing, TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval)
Else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format)
End If
' Parse a single number using the "%s" custom format string.
format = "%s"
If TimeSpan.TryParseExact(intervalString, format,
Nothing, TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("'{0}' ({1}) --> {2}", intervalString, format, interval)
Else
Console.WriteLine("Unable to parse '{0}' using format {1}",
intervalString, format)
End If
End Sub
End Module
' The example displays the following output:
' '17:14' (h\:mm) --> -17:14:00
' '17:14:48' (g) --> 17:14:48
' '17:14:48.153' (h\:mm\:ss\.fff) --> -17:14:48.1530000
' '3:17:14:48.153' (G) --> 3.17:14:48.1530000
' '3:17:14:48.153' (d\:hh\:mm\:ss\.fff) --> -3.17:14:48.1530000
' '3:17:14:48,153' (G) --> 3.17:14:48.1530000
' '12' (c) --> 12.00:00:00
' '12' (%h) --> -12:00:00
' '12' (%s) --> -00:00:12
Remarks
The TryParseExact(String, String, IFormatProvider, TimeSpanStyles, TimeSpan) method parses the string representation of a time interval, which must be in the format defined by the format
parameter, except that leading and trailing white-space characters are ignored. This method is similar to the ParseExact(String, String, IFormatProvider, TimeSpanStyles) method, except that it does not throw an exception if the conversion fails.
The format
parameter is a string that contains either a single standard format specifier, or one or more custom format specifiers that define the required format of input
. For more information about valid format strings, see Standard TimeSpan Format Strings and Custom TimeSpan Format Strings.
The formatProvider
parameter is an IFormatProvider implementation that provides culture-specific information about the format of the returned string if format
is a standard format string. The formatProvider
parameter can be any of the following:
A CultureInfo object that represents the culture whose formatting conventions are to be reflected in the returned string. The DateTimeFormatInfo object returned by the CultureInfo.DateTimeFormat property defines the formatting of the returned string.
A DateTimeFormatInfo object that defines the formatting of the returned string.
A custom object that implements the IFormatProvider interface. Its IFormatProvider.GetFormat method returns a DateTimeFormatInfo object that provides formatting information.
If formatProvider
is null
, the DateTimeFormatInfo object that is associated with the current culture is used.
The styles
parameter affects the interpretation of strings parsed using custom format strings. It determines whether input
is interpreted as a negative time interval only if a negative sign is present (TimeSpanStyles.None), or whether it is always interpreted as a negative time interval (TimeSpanStyles.AssumeNegative). If TimeSpanStyles.AssumeNegative is not used, format
must include a literal negative sign symbol (such as "\-") to successfully parse a negative time interval.
See also
Applies to
TryParseExact(ReadOnlySpan<Char>, ReadOnlySpan<Char>, IFormatProvider, TimeSpanStyles, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the specified span representation of a time interval to its TimeSpan equivalent by using the specified format, culture-specific format information, and styles, and returns a value that indicates whether the conversion succeeded. The format of the string representation must match the specified format exactly.
public:
static bool TryParseExact(ReadOnlySpan<char> input, ReadOnlySpan<char> format, IFormatProvider ^ formatProvider, System::Globalization::TimeSpanStyles styles, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParseExact (ReadOnlySpan<char> input, ReadOnlySpan<char> format, IFormatProvider? formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
public static bool TryParseExact (ReadOnlySpan<char> input, ReadOnlySpan<char> format, IFormatProvider formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
static member TryParseExact : ReadOnlySpan<char> * ReadOnlySpan<char> * IFormatProvider * System.Globalization.TimeSpanStyles * TimeSpan -> bool
Public Shared Function TryParseExact (input As ReadOnlySpan(Of Char), format As ReadOnlySpan(Of Char), formatProvider As IFormatProvider, styles As TimeSpanStyles, ByRef result As TimeSpan) As Boolean
Parameters
- input
- ReadOnlySpan<Char>
A span containing the characters that represent a time interval to convert.
- format
- ReadOnlySpan<Char>
A span containing the charactes that represent a standard or custom format string that defines the acceptable format of input
.
- formatProvider
- IFormatProvider
An object that supplies culture-specific formatting information.
- styles
- TimeSpanStyles
One or more enumeration values that indicate the style of input
.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by input
, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true
if input
was converted successfully; otherwise, false
.
Applies to
TryParseExact(String, String[], IFormatProvider, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the specified string representation of a time interval to its TimeSpan equivalent by using the specified formats and culture-specific format information. The format of the string representation must match one of the specified formats exactly.
public:
static bool TryParseExact(System::String ^ input, cli::array <System::String ^> ^ formats, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParseExact (string input, string[] formats, IFormatProvider formatProvider, out TimeSpan result);
public static bool TryParseExact (string? input, string?[]? formats, IFormatProvider? formatProvider, out TimeSpan result);
public static bool TryParseExact (string? input, string[] formats, IFormatProvider? formatProvider, out TimeSpan result);
static member TryParseExact : string * string[] * IFormatProvider * TimeSpan -> bool
Public Shared Function TryParseExact (input As String, formats As String(), formatProvider As IFormatProvider, ByRef result As TimeSpan) As Boolean
Parameters
- input
- String
A string that specifies the time interval to convert.
- formats
- String[]
An array of standard or custom format strings that define the acceptable formats of input
.
- formatProvider
- IFormatProvider
An object that provides culture-specific formatting information.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by input
, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true
if input
was converted successfully; otherwise, false
.
Examples
The following example calls the TryParseExact(String, String[], IFormatProvider, TimeSpan) method to convert each element of a string array to a TimeSpan value. The example interprets the strings by using the formatting conventions of the French - France ("fr-FR") culture. The strings can represent a time interval in either the general short format or the general long format.
In addition, the example changes the way in which the time interval parsing methods interpret a single digit. Ordinarily, a single digit is interpreted as the number of days in a time interval. Instead, the %h
custom format string is used to interpret a single digit as the number of hours. For this change to be effective, note that the %h
custom format string must precede the other format strings in the formats
array.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
string[] inputs = { "3", "16:42", "1:6:52:35.0625",
"1:6:52:35,0625" };
string[] formats = { "g", "G", "%h"};
TimeSpan interval;
CultureInfo culture = new CultureInfo("fr-FR");
// Parse each string in inputs using formats and the fr-FR culture.
foreach (string input in inputs) {
if(TimeSpan.TryParseExact(input, formats, culture, out interval))
Console.WriteLine("{0} --> {1:c}", input, interval);
else
Console.WriteLine("Unable to parse {0}", input);
}
}
}
// The example displays the following output:
// 3 --> 03:00:00
// 16:42 --> 16:42:00
// Unable to parse 1:6:52:35.0625
// 1:6:52:35,0625 --> 1.06:52:35.0625000
open System
open System.Globalization
let inputs =
[| "3"; "16:42"; "1:6:52:35.0625"
"1:6:52:35,0625" |]
let formats = [| "g"; "G"; "%h" |]
let culture = CultureInfo "fr-FR"
// Parse each string in inputs using formats and the fr-FR culture.
for input in inputs do
match TimeSpan.TryParseExact(input, formats, culture) with
| true, interval ->
printfn $"{input} --> {interval:c}"
| _ ->
printfn $"Unable to parse {input}"
// The example displays the following output:
// 3 --> 03:00:00
// 16:42 --> 16:42:00
// Unable to parse 1:6:52:35.0625
// 1:6:52:35,0625 --> 1.06:52:35.0625000
Imports System.Globalization
Module Example
Public Sub Main()
Dim inputs() As String = { "3", "16:42", "1:6:52:35.0625",
"1:6:52:35,0625" }
Dim formats() As String = { "%h", "g", "G" }
Dim interval As TimeSpan
Dim culture As New CultureInfo("fr-FR")
' Parse each string in inputs using formats and the fr-FR culture.
For Each input As String In inputs
If TimeSpan.TryParseExact(input, formats, culture, interval) Then
Console.WriteLine("{0} --> {1:c}", input, interval)
Else
Console.WriteLine("Unable to parse {0}", input)
End If
Next
End Sub
End Module
' The example displays the following output:
' 3 --> 03:00:00
' 16:42 --> 16:42:00
' Unable to parse 1:6:52:35.0625
' 1:6:52:35,0625 --> 1.06:52:35.0625000
Remarks
The TryParseExact(String, String[], IFormatProvider, TimeSpan) method parses the string representation of a time interval, which must be in the format defined by one of the format strings specified by the formats
parameter, except that leading and trailing white-space characters are ignored. This method is similar to the ParseExact(String, String[], IFormatProvider) method, except that it does not throw an exception if the conversion fails.
The formats
parameter is a string array whose elements consist of either a single standard format specifier, or one or more custom format specifiers that define the required format of input
. For more information about valid format strings, see Standard TimeSpan Format Strings and Custom TimeSpan Format Strings. input
must correspond exactly to a member of formats
for the parse operation to succeed. The parse operation attempts to match input
to each element in formats
starting with the first element in the array.
Important
The TryParseExact method uses the conventions of the culture specified by the formatProvider
parameter only if the format string used to parse input
is a standard TimeSpan format string whose value is either "g" or "G". The "c", "t", and "T" standard format strings use the formatting conventions of the invariant culture. Custom format strings define the precise format of the input string and use literal characters to separate the components of a time interval.
The formatProvider
parameter is an IFormatProvider implementation that provides culture-specific information about the format of the returned string if the format string used to parse input
is a standard format string. The formatProvider
parameter can be any of the following:
A CultureInfo object that represents the culture whose formatting conventions are to be reflected in the returned string. The DateTimeFormatInfo object returned by the CultureInfo.DateTimeFormat property defines the formatting of the returned string.
A DateTimeFormatInfo object that defines the formatting of the returned string.
A custom object that implements the IFormatProvider interface. Its IFormatProvider.GetFormat method returns a DateTimeFormatInfo object that provides formatting information.
If formatProvider
is null
, the DateTimeFormatInfo object that is associated with the current culture is used.
See also
Applies to
TryParseExact(String, String[], IFormatProvider, TimeSpanStyles, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the specified string representation of a time interval to its TimeSpan equivalent by using the specified formats, culture-specific format information and styles. The format of the string representation must match one of the specified formats exactly.
public:
static bool TryParseExact(System::String ^ input, cli::array <System::String ^> ^ formats, IFormatProvider ^ formatProvider, System::Globalization::TimeSpanStyles styles, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParseExact (string input, string[] formats, IFormatProvider formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
public static bool TryParseExact (string? input, string?[]? formats, IFormatProvider? formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
public static bool TryParseExact (string? input, string[] formats, IFormatProvider? formatProvider, System.Globalization.TimeSpanStyles styles, out TimeSpan result);
static member TryParseExact : string * string[] * IFormatProvider * System.Globalization.TimeSpanStyles * TimeSpan -> bool
Public Shared Function TryParseExact (input As String, formats As String(), formatProvider As IFormatProvider, styles As TimeSpanStyles, ByRef result As TimeSpan) As Boolean
Parameters
- input
- String
A string that specifies the time interval to convert.
- formats
- String[]
An array of standard or custom format strings that define the acceptable formats of input
.
- formatProvider
- IFormatProvider
An object that supplies culture-specific formatting information.
- styles
- TimeSpanStyles
One or more enumeration values that indicate the style of input
.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by input
, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true
if input
was converted successfully; otherwise, false
.
Examples
The following example calls the TryParseExact(String, String[], IFormatProvider, TimeSpanStyles, TimeSpan) method to convert each element of a string array to a TimeSpan value. The strings can represent a time interval in either the general short format or the general long format.
In addition, the example changes the way in which the time interval parsing methods interpret a single digit. Ordinarily, a single digit is interpreted as the number of days in a time interval. Instead, the %h
custom format string is used to interpret a single digit as the number of hours. For this change to be effective, note that the %h
custom format string must precede the other format strings in the formats
array. Also note from the output that the TimeSpanStyles.AssumeNegative flag specified in the method call is used only when parsing a string with this format specifier.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
string[] inputs = { "3", "16:42", "1:6:52:35.0625",
"1:6:52:35,0625" };
string[] formats = { "%h", "g", "G" };
TimeSpan interval;
CultureInfo culture = new CultureInfo("fr-FR");
// Parse each string in inputs using formats and the fr-FR culture.
foreach (string input in inputs) {
if(TimeSpan.TryParseExact(input, formats, culture,
TimeSpanStyles.AssumeNegative, out interval))
Console.WriteLine("{0} --> {1:c}", input, interval);
else
Console.WriteLine("Unable to parse {0}", input);
}
}
}
// The example displays the following output:
// 3 --> -03:00:00
// 16:42 --> 16:42:00
// Unable to parse 1:6:52:35.0625
// 1:6:52:35,0625 --> 1.06:52:35.0625000
open System
open System.Globalization
let inputs =
[| "3"; "16:42"; "1:6:52:35.0625"
"1:6:52:35,0625" |]
let formats = [| "%h"; "g"; "G" |]
let culture = CultureInfo "fr-FR"
// Parse each string in inputs using formats and the fr-FR culture.
for input in inputs do
match TimeSpan.TryParseExact(input, formats, culture, TimeSpanStyles.AssumeNegative) with
| true, interval ->
printfn $"{input} --> {interval:c}"
| _ ->
printfn $"Unable to parse {input}"
// The example displays the following output:
// 3 --> -03:00:00
// 16:42 --> 16:42:00
// Unable to parse 1:6:52:35.0625
// 1:6:52:35,0625 --> 1.06:52:35.0625000
Imports System.Globalization
Module Example
Public Sub Main()
Dim inputs() As String = { "3", "16:42", "1:6:52:35.0625",
"1:6:52:35,0625" }
Dim formats() As String = { "%h", "g", "G" }
Dim interval As TimeSpan
Dim culture As New CultureInfo("de-DE")
' Parse each string in inputs using formats and the fr-FR culture.
For Each input As String In inputs
If TimeSpan.TryParseExact(input, formats, culture,
TimeSpanStyles.AssumeNegative, interval) Then
Console.WriteLine("{0} --> {1:c}", input, interval)
Else
Console.WriteLine("Unable to parse {0}", input)
End If
Next
End Sub
End Module
' The example displays the following output:
' 3 --> -03:00:00
' 16:42 --> 16:42:00
' Unable to parse 1:6:52:35.0625
' 1:6:52:35,0625 --> 1.06:52:35.0625000
Remarks
The TryParseExact(String, String[], IFormatProvider, TimeSpanStyles, TimeSpan) method parses the string representation of a time interval, which must be in the format defined by one of the format strings specified by the formats
parameter, except that leading and trailing white-space characters are ignored. This method is similar to the ParseExact(String, String[], IFormatProvider, TimeSpanStyles) method, except that it does not throw an exception if the conversion fails.
The formats
parameter is a string array whose elements consist of either a single standard format specifier, or one or more custom format specifiers that define the required format of input
. For more information about valid format strings, see Standard TimeSpan Format Strings and Custom TimeSpan Format Strings. input
must correspond exactly to a member of formats
for the parse operation to succeed. The parse operation attempts to match input
to each element in formats
starting with the first element in the array.
Important
The ParseExact method uses the conventions of the culture specified by the formatProvider
parameter only if the format string used to parse input
is a standard TimeSpan format string whose value is either "g" or "G". The "c", "t", and "T" standard format strings use the formatting conventions of the invariant culture. Custom format strings define the precise format of the input string and use literal characters to separate the components of a time interval.
The formatProvider
parameter is an IFormatProvider implementation that provides culture-specific information about the format of the returned string if the format string used to parse input
is a standard format string. The formatProvider
parameter can be any of the following:
A CultureInfo object that represents the culture whose formatting conventions are to be reflected in the returned string. The DateTimeFormatInfo object returned by the CultureInfo.DateTimeFormat property defines the formatting of the returned string.
A DateTimeFormatInfo object that defines the formatting of the returned string.
A custom object that implements the IFormatProvider interface. Its IFormatProvider.GetFormat method returns a DateTimeFormatInfo object that provides formatting information.
If formatProvider
is null
, the DateTimeFormatInfo object that is associated with the current culture is used.
The styles
parameter affects the interpretation of strings that are parsed using custom format strings. It determines whether input
is interpreted as a negative time interval only if a negative sign is present (TimeSpanStyles.None), or whether it is always interpreted as a negative time interval (TimeSpanStyles.AssumeNegative). If TimeSpanStyles.AssumeNegative is not used, format
must include a literal negative sign symbol (such as "\-") to successfully parse a negative time interval.
See also
Applies to
TryParseExact(ReadOnlySpan<Char>, String[], IFormatProvider, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the specified span representation of a time interval to its TimeSpan equivalent by using the specified formats and culture-specific format information. The format of the string representation must match one of the specified formats exactly.
public:
static bool TryParseExact(ReadOnlySpan<char> input, cli::array <System::String ^> ^ formats, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParseExact (ReadOnlySpan<char> input, string?[]? formats, IFormatProvider? formatProvider, out TimeSpan result);
public static bool TryParseExact (ReadOnlySpan<char> input, string[] formats, IFormatProvider formatProvider, out TimeSpan result);
public static bool TryParseExact (ReadOnlySpan<char> input, string[] formats, IFormatProvider? formatProvider, out TimeSpan result);
static member TryParseExact : ReadOnlySpan<char> * string[] * IFormatProvider * TimeSpan -> bool
Public Shared Function TryParseExact (input As ReadOnlySpan(Of Char), formats As String(), formatProvider As IFormatProvider, ByRef result As TimeSpan) As Boolean
Parameters
- input
- ReadOnlySpan<Char>
A span containing the characters that represent a time interval to convert.
- formats
- String[]
An array of standard or custom format strings that define the acceptable formats of input
.
- formatProvider
- IFormatProvider
An object that supplies culture-specific formatting information.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by input
, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true
if input
was converted successfully; otherwise, false
.
Applies to
TryParseExact(ReadOnlySpan<Char>, ReadOnlySpan<Char>, IFormatProvider, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the specified span representation of a time interval to its TimeSpan equivalent by using the specified format and culture-specific format information. The format of the string representation must match the specified format exactly.
public:
static bool TryParseExact(ReadOnlySpan<char> input, ReadOnlySpan<char> format, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParseExact (ReadOnlySpan<char> input, ReadOnlySpan<char> format, IFormatProvider? formatProvider, out TimeSpan result);
public static bool TryParseExact (ReadOnlySpan<char> input, ReadOnlySpan<char> format, IFormatProvider formatProvider, out TimeSpan result);
static member TryParseExact : ReadOnlySpan<char> * ReadOnlySpan<char> * IFormatProvider * TimeSpan -> bool
Public Shared Function TryParseExact (input As ReadOnlySpan(Of Char), format As ReadOnlySpan(Of Char), formatProvider As IFormatProvider, ByRef result As TimeSpan) As Boolean
Parameters
- input
- ReadOnlySpan<Char>
A span containing the characters that represent a time interval to convert.
- format
- ReadOnlySpan<Char>
A span containing the characters that represent a standard or custom format string that defines the acceptable format of input
.
- formatProvider
- IFormatProvider
An object that supplies culture-specific formatting information.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by input
, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true
if input
was converted successfully; otherwise, false
.
Applies to
TryParseExact(String, String, IFormatProvider, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the string representation of a time interval to its TimeSpan equivalent by using the specified format and culture-specific format information. The format of the string representation must match the specified format exactly.
public:
static bool TryParseExact(System::String ^ input, System::String ^ format, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result);
public static bool TryParseExact (string input, string format, IFormatProvider formatProvider, out TimeSpan result);
public static bool TryParseExact (string? input, string? format, IFormatProvider? formatProvider, out TimeSpan result);
public static bool TryParseExact (string? input, string format, IFormatProvider? formatProvider, out TimeSpan result);
static member TryParseExact : string * string * IFormatProvider * TimeSpan -> bool
Public Shared Function TryParseExact (input As String, format As String, formatProvider As IFormatProvider, ByRef result As TimeSpan) As Boolean
Parameters
- input
- String
A string that specifies the time interval to convert.
- format
- String
A standard or custom format string that defines the required format of input
.
- formatProvider
- IFormatProvider
An object that supplies culture-specific formatting information.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by input
, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true
if input
was converted successfully; otherwise, false
.
Examples
The following example uses the TryParseExact(String, String, IFormatProvider, TimeSpanStyles, TimeSpan) method to parse several string representations of time intervals using various format strings and cultures.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
string intervalString, format;
TimeSpan interval;
CultureInfo culture;
// Parse hour:minute value with "g" specifier current culture.
intervalString = "17:14";
format = "g";
culture = CultureInfo.CurrentCulture;
if (TimeSpan.TryParseExact(intervalString, format, culture, out interval))
Console.WriteLine("'{0}' --> {1}", intervalString, interval);
else
Console.WriteLine("Unable to parse {0}", intervalString);
// Parse hour:minute:second value with "G" specifier.
intervalString = "17:14:48";
format = "G";
culture = CultureInfo.InvariantCulture;
if (TimeSpan.TryParseExact(intervalString, format, culture, out interval))
Console.WriteLine("'{0}' --> {1}", intervalString, interval);
else
Console.WriteLine("Unable to parse {0}", intervalString);
// Parse hours:minute.second value with "G" specifier
// and current (en-US) culture.
intervalString = "17:14:48.153";
format = "G";
culture = CultureInfo.CurrentCulture;
if (TimeSpan.TryParseExact(intervalString, format, culture, out interval))
Console.WriteLine("'{0}' --> {1}", intervalString, interval);
else
Console.WriteLine("Unable to parse {0}", intervalString);
// Parse days:hours:minute.second value with "G" specifier
// and current (en-US) culture.
intervalString = "3:17:14:48.153";
format = "G";
culture = CultureInfo.CurrentCulture;
if (TimeSpan.TryParseExact(intervalString, format, culture, out interval))
Console.WriteLine("'{0}' --> {1}", intervalString, interval);
else
Console.WriteLine("Unable to parse {0}", intervalString);
// Parse days:hours:minute.second value with "G" specifier
// and fr-FR culture.
intervalString = "3:17:14:48.153";
format = "G";
culture = new CultureInfo("fr-FR");
if (TimeSpan.TryParseExact(intervalString, format, culture, out interval))
Console.WriteLine("'{0}' --> {1}", intervalString, interval);
else
Console.WriteLine("Unable to parse {0}", intervalString);
// Parse days:hours:minute.second value with "G" specifier
// and fr-FR culture.
intervalString = "3:17:14:48,153";
format = "G";
if (TimeSpan.TryParseExact(intervalString, format, culture, out interval))
Console.WriteLine("'{0}' --> {1}", intervalString, interval);
else
Console.WriteLine("Unable to parse {0}", intervalString);
// Parse a single number using the "c" standard format string.
intervalString = "12";
format = "c";
if (TimeSpan.TryParseExact(intervalString, format, null, out interval))
Console.WriteLine("'{0}' --> {1}", intervalString, interval);
else
Console.WriteLine("Unable to parse {0}", intervalString);
// Parse a single number using the "%h" custom format string.
format = "%h";
if (TimeSpan.TryParseExact(intervalString, format, null, out interval))
Console.WriteLine("'{0}' --> {1}", intervalString, interval);
else
Console.WriteLine("Unable to parse {0}", intervalString);
// Parse a single number using the "%s" custom format string.
format = "%s";
if (TimeSpan.TryParseExact(intervalString, format, null, out interval))
Console.WriteLine("'{0}' --> {1}", intervalString, interval);
else
Console.WriteLine("Unable to parse {0}", intervalString);
}
}
// The example displays the following output:
// '17:14' --> 17:14:00
// Unable to parse 17:14:48
// Unable to parse 17:14:48.153
// '3:17:14:48.153' --> 3.17:14:48.1530000
// Unable to parse 3:17:14:48.153
// '3:17:14:48,153' --> 3.17:14:48.1530000
// '12' --> 12.00:00:00
// '12' --> 12:00:00
// '12' --> 00:00:12
open System
open System.Globalization
do
// Parse hour:minute value with "g" specifier current culture.
let intervalString = "17:14"
let format = "g"
let culture = CultureInfo.CurrentCulture
match TimeSpan.TryParseExact(intervalString, format, culture) with
| true, interval ->
printfn $"'{intervalString}' --> {interval}"
| _ ->
printfn $"Unable to parse {intervalString}"
// Parse hour:minute:second value with "G" specifier.
let intervalString = "17:14:48"
let format = "G"
let culture = CultureInfo.InvariantCulture
match TimeSpan.TryParseExact(intervalString, format, culture) with
| true, interval ->
printfn $"'{intervalString}' --> {interval}"
| _ ->
printfn $"Unable to parse {intervalString}"
// Parse hours:minute.second value with "G" specifier
// and current (en-US) culture.
let intervalString = "17:14:48.153"
let format = "G"
let culture = CultureInfo.CurrentCulture
match TimeSpan.TryParseExact(intervalString, format, culture) with
| true, interval ->
printfn $"'{intervalString}' --> {interval}"
| _ ->
printfn $"Unable to parse {intervalString}"
// Parse days:hours:minute.second value with "G" specifier
// and current (en-US) culture.
let intervalString = "3:17:14:48.153"
let format = "G"
let culture = CultureInfo.CurrentCulture
match TimeSpan.TryParseExact(intervalString, format, culture) with
| true, interval ->
printfn $"'{intervalString}' --> {interval}"
| _ ->
printfn $"Unable to parse {intervalString}"
// Parse days:hours:minute.second value with "G" specifier
// and fr-FR culture.
let intervalString = "3:17:14:48.153"
let format = "G"
let culture = new CultureInfo("fr-FR")
match TimeSpan.TryParseExact(intervalString, format, culture) with
| true, interval ->
printfn $"'{intervalString}' --> {interval}"
| _ ->
printfn $"Unable to parse {intervalString}"
// Parse days:hours:minute.second value with "G" specifier
// and fr-FR culture.
let intervalString = "3:17:14:48,153"
let format = "G"
match TimeSpan.TryParseExact(intervalString, format, culture) with
| true, interval ->
printfn $"'{intervalString}' --> {interval}"
| _ ->
printfn $"Unable to parse {intervalString}"
// Parse a single number using the "c" standard format string.
let intervalString = "12"
let format = "c"
match TimeSpan.TryParseExact(intervalString, format, null) with
| true, interval ->
printfn $"'{intervalString}' --> {interval}"
| _ ->
printfn $"Unable to parse {intervalString}"
// Parse a single number using the "%h" custom format string.
let format = "%h"
match TimeSpan.TryParseExact(intervalString, format, null) with
| true, interval ->
printfn $"'{intervalString}' --> {interval}"
| _ ->
printfn $"Unable to parse {intervalString}"
// Parse a single number using the "%s" custom format string.
let format = "%s"
match TimeSpan.TryParseExact(intervalString, format, null) with
| true, interval ->
printfn $"'{intervalString}' --> {interval}"
| _ ->
printfn $"Unable to parse {intervalString}"
// The example displays the following output:
// '17:14' --> 17:14:00
// Unable to parse 17:14:48
// Unable to parse 17:14:48.153
// '3:17:14:48.153' --> 3.17:14:48.1530000
// Unable to parse 3:17:14:48.153
// '3:17:14:48,153' --> 3.17:14:48.1530000
// '12' --> 12.00:00:00
// '12' --> 12:00:00
// '12' --> 00:00:12
Imports System.Globalization
Module Example
Public Sub Main()
Dim intervalString, format As String
Dim interval As TimeSpan
Dim culture As CultureInfo
' Parse hour:minute value with "g" specifier current culture.
intervalString = "17:14"
format = "g"
culture = CultureInfo.CurrentCulture
If TimeSpan.TryParseExact(intervalString, format, culture, interval) Then
Console.WriteLine("'{0}' --> {1}", intervalString, interval)
Else
Console.WriteLine("Unable to parse {0}", intervalString)
End If
' Parse hour:minute:second value with "G" specifier.
intervalString = "17:14:48"
format = "G"
culture = CultureInfo.InvariantCulture
If TimeSpan.TryParseExact(intervalString, format, culture, interval) Then
Console.WriteLine("'{0}' --> {1}", intervalString, interval)
Else
Console.WriteLine("Unable to parse {0}", intervalString)
End If
' Parse hours:minute.second value with "G" specifier
' and current (en-US) culture.
intervalString = "17:14:48.153"
format = "G"
culture = CultureInfo.CurrentCulture
If TimeSpan.TryParseExact(intervalString, format, culture, interval) Then
Console.WriteLine("'{0}' --> {1}", intervalString, interval)
Else
Console.WriteLine("Unable to parse {0}", intervalString)
End If
' Parse days:hours:minute.second value with "G" specifier
' and current (en-US) culture.
intervalString = "3:17:14:48.153"
format = "G"
culture = CultureInfo.CurrentCulture
If TimeSpan.TryParseExact(intervalString, format, culture, interval) Then
Console.WriteLine("'{0}' --> {1}", intervalString, interval)
Else
Console.WriteLine("Unable to parse {0}", intervalString)
End If
' Parse days:hours:minute.second value with "G" specifier
' and fr-FR culture.
intervalString = "3:17:14:48.153"
format = "G"
culture = New CultureInfo("fr-FR")
If TimeSpan.TryParseExact(intervalString, format, culture, interval) Then
Console.WriteLine("'{0}' --> {1}", intervalString, interval)
Else
Console.WriteLine("Unable to parse {0}", intervalString)
End If
' Parse days:hours:minute.second value with "G" specifier
' and fr-FR culture.
intervalString = "3:17:14:48,153"
format = "G"
culture = New CultureInfo("fr-FR")
If TimeSpan.TryParseExact(intervalString, format, culture, interval) Then
Console.WriteLine("'{0}' --> {1}", intervalString, interval)
Else
Console.WriteLine("Unable to parse {0}", intervalString)
End If
' Parse a single number using the "c" standard format string.
intervalString = "12"
format = "c"
If TimeSpan.TryParseExact(intervalString, format, Nothing, interval)
Console.WriteLine("'{0}' --> {1}", intervalString, interval)
Else
Console.WriteLine("Unable to parse {0}", intervalString)
End If
' Parse a single number using the "%h" custom format string.
format = "%h"
If TimeSpan.TryParseExact(intervalString, format, Nothing, interval)
Console.WriteLine("'{0}' --> {1}", intervalString, interval)
Else
Console.WriteLine("Unable to parse {0}", intervalString)
End If
' Parse a single number using the "%s" custom format string.
format = "%s"
If TimeSpan.TryParseExact(intervalString, format, Nothing, interval) Then
Console.WriteLine("'{0}' --> {1}", intervalString, interval)
Else
Console.WriteLine("Unable to parse {0}", intervalString)
End If
End Sub
End Module
' The example displays the following output:
' '17:14' --> 17:14:00
' Unable to parse 17:14:48
' Unable to parse 17:14:48.153
' '3:17:14:48.153' --> 3.17:14:48.1530000
' Unable to parse 3:17:14:48.153
' '3:17:14:48,153' --> 3.17:14:48.1530000
' '12' --> 12.00:00:00
' '12' --> 12:00:00
' '12' --> 00:00:12
Remarks
The TryParseExact(String, String, IFormatProvider, TimeSpan) method parses the string representation of a time interval, which must be in the format defined by the format
parameter, except that leading and trailing white-space characters are ignored. This method is similar to the ParseExact(String, String, IFormatProvider) method, except that it does not throw an exception if the conversion fails.
The format
parameter is a string that contains either a single standard format specifier, or one or more custom format specifiers that define the required format of input
. For more information about valid format strings, see Standard TimeSpan Format Strings and Custom TimeSpan Format Strings.
Important
The TryParseExact(String, String, IFormatProvider, TimeSpan) method uses the conventions of the culture specified by the formatProvider
parameter only if format
is a standard TimeSpan format string whose value is either "g" or "G". The "c", "t", and "T" standard format strings use the formatting conventions of the invariant culture. Custom format strings define the precise format of the input string and use literal characters to separate the components of a time interval.
The formatProvider
parameter is an IFormatProvider implementation that provides culture-specific information about the format of the returned string if format
is a standard format string. The formatProvider
parameter can be any of the following:
A CultureInfo object that represents the culture whose formatting conventions are to be reflected in the returned string. The DateTimeFormatInfo object returned by the CultureInfo.DateTimeFormat property defines the formatting of the returned string.
A DateTimeFormatInfo object that defines the formatting of the returned string.
A custom object that implements the IFormatProvider interface. Its IFormatProvider.GetFormat method returns a DateTimeFormatInfo object that provides formatting information.
If formatProvider
is null
, the DateTimeFormatInfo object that is associated with the current culture is used.
See also
Applies to
משוב
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