TimeSpan.TryParse Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Converts the specified string representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded.
Overloads
| TryParse(String, TimeSpan) |
Converts the string representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded. |
| TryParse(ReadOnlySpan<Char>, IFormatProvider, TimeSpan) |
Converts the span representation of a time interval to its TimeSpan equivalent by using the specified culture-specific formatting information, and returns a value that indicates whether the conversion succeeded. |
| TryParse(ReadOnlySpan<Char>, TimeSpan) |
Converts the span representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded. |
| TryParse(String, IFormatProvider, TimeSpan) |
Converts the string representation of a time interval to its TimeSpan equivalent by using the specified culture-specific formatting information, and returns a value that indicates whether the conversion succeeded. |
TryParse(String, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the string representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded.
public:
static bool TryParse(System::String ^ s, [Runtime::InteropServices::Out] TimeSpan % result);public static bool TryParse (string s, out TimeSpan result);public static bool TryParse (string? s, out TimeSpan result);static member TryParse : string * TimeSpan -> boolPublic Shared Function TryParse (s As String, ByRef result As TimeSpan) As BooleanParameters
- s
- String
A string that specifies the time interval to convert.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by s, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true if s was converted successfully; otherwise, false. This operation returns false if the s parameter is null or Empty, has an invalid format, represents a time interval that is less than TimeSpan.MinValue or greater than TimeSpan.MaxValue, or has at least one days, hours, minutes, or seconds component outside its valid range.
Examples
The following example uses the TryParse method to create TimeSpan objects from valid TimeSpan strings and to indicate when the parse operation has failed because the time span string is invalid.
using System;
public class TryParse
{
private static void ParseTimeSpan(string intervalStr)
{
// Write the first part of the output line.
Console.Write( "{0,20} ", intervalStr );
// Parse the parameter, and then convert it back to a string.
TimeSpan intervalVal;
if (TimeSpan.TryParse(intervalStr, out intervalVal))
{
string intervalToStr = intervalVal.ToString();
// Pad the end of the TimeSpan string with spaces if it
// does not contain milliseconds.
int pIndex = intervalToStr.IndexOf(':');
pIndex = intervalToStr.IndexOf('.', pIndex);
if (pIndex < 0)
intervalToStr += " ";
Console.WriteLine("{0,21}", intervalToStr);
// Handle failure of TryParse method.
}
else
{
Console.WriteLine("Parse operation failed.");
}
}
public static void Main()
{
Console.WriteLine( "{0,20} {1,21}",
"String to Parse", "TimeSpan" );
Console.WriteLine( "{0,20} {1,21}",
"---------------", "---------------------" );
ParseTimeSpan("0");
ParseTimeSpan("14");
ParseTimeSpan("1:2:3");
ParseTimeSpan("0:0:0.250");
ParseTimeSpan("10.20:30:40.50");
ParseTimeSpan("99.23:59:59.9999999");
ParseTimeSpan("0023:0059:0059.0099");
ParseTimeSpan("23:0:0");
ParseTimeSpan("24:0:0");
ParseTimeSpan("0:59:0");
ParseTimeSpan("0:60:0");
ParseTimeSpan("0:0:59");
ParseTimeSpan("0:0:60");
ParseTimeSpan("10:");
ParseTimeSpan("10:0");
ParseTimeSpan(":10");
ParseTimeSpan("0:10");
ParseTimeSpan("10:20:");
ParseTimeSpan("10:20:0");
ParseTimeSpan(".123");
ParseTimeSpan("0.12:00");
ParseTimeSpan("10.");
ParseTimeSpan("10.12");
ParseTimeSpan("10.12:00");
}
}
// String to Parse TimeSpan
// --------------- ---------------------
// 0 00:00:00
// 14 14.00:00:00
// 1:2:3 01:02:03
// 0:0:0.250 00:00:00.2500000
// 10.20:30:40.50 10.20:30:40.5000000
// 99.23:59:59.9999999 99.23:59:59.9999999
// 0023:0059:0059.0099 23:59:59.0099000
// 23:0:0 23:00:00
// 24:0:0 Parse operation failed.
// 0:59:0 00:59:00
// 0:60:0 Parse operation failed.
// 0:0:59 00:00:59
// 0:0:60 Parse operation failed.
// 10: Parse operation failed.
// 10:0 10:00:00
// :10 Parse operation failed.
// 0:10 00:10:00
// 10:20: Parse operation failed.
// 10:20:0 10:20:00
// .123 Parse operation failed.
// 0.12:00 12:00:00
// 10. Parse operation failed.
// 10.12 Parse operation failed.
// 10.12:00 10.12:00:00
open System
let parseTimeSpan intervalStr =
// Write the first part of the output line.
printf $"%20s{intervalStr} "
// Parse the parameter, and then convert it back to a string.
match TimeSpan.TryParse intervalStr with
| true, intervalVal ->
let intervalToStr = string intervalVal
// Pad the end of the TimeSpan string with spaces if it
// does not contain milliseconds.
let pIndex = intervalToStr.IndexOf ':'
let pIndex = intervalToStr.IndexOf('.', pIndex)
let intervalToStr =
if pIndex < 0 then
intervalToStr + " "
else intervalStr
printfn $"{intervalToStr,21}"
// Handle failure of TryParse method.
| _ ->
printfn "Parse operation failed."
printfn "%20s %21s" "String to Parse" "TimeSpan"
printfn "%20s %21s" "---------------" "---------------------"
parseTimeSpan "0"
parseTimeSpan "14"
parseTimeSpan "1:2:3"
parseTimeSpan "0:0:0.250"
parseTimeSpan "10.20:30:40.50"
parseTimeSpan "99.23:59:59.9999999"
parseTimeSpan "0023:0059:0059.0099"
parseTimeSpan "23:0:0"
parseTimeSpan "24:0:0"
parseTimeSpan "0:59:0"
parseTimeSpan "0:60:0"
parseTimeSpan "0:0:59"
parseTimeSpan "0:0:60"
parseTimeSpan "10:"
parseTimeSpan "10:0"
parseTimeSpan ":10"
parseTimeSpan "0:10"
parseTimeSpan "10:20:"
parseTimeSpan "10:20:0"
parseTimeSpan ".123"
parseTimeSpan "0.12:00"
parseTimeSpan "10."
parseTimeSpan "10.12"
parseTimeSpan "10.12:00"
// String to Parse TimeSpan
// --------------- ---------------------
// 0 00:00:00
// 14 14.00:00:00
// 1:2:3 01:02:03
// 0:0:0.250 00:00:00.2500000
// 10.20:30:40.50 10.20:30:40.5000000
// 99.23:59:59.9999999 99.23:59:59.9999999
// 0023:0059:0059.0099 23:59:59.0099000
// 23:0:0 23:00:00
// 24:0:0 Parse operation failed.
// 0:59:0 00:59:00
// 0:60:0 Parse operation failed.
// 0:0:59 00:00:59
// 0:0:60 Parse operation failed.
// 10: Parse operation failed.
// 10:0 10:00:00
// :10 Parse operation failed.
// 0:10 00:10:00
// 10:20: Parse operation failed.
// 10:20:0 10:20:00
// .123 Parse operation failed.
// 0.12:00 12:00:00
// 10. Parse operation failed.
// 10.12 Parse operation failed.
// 10.12:00 10.12:00:00
Module TryParse
Sub ParseTimeSpan( intervalStr As String )
' Write the first part of the output line.
Console.Write( "{0,20} ", intervalStr )
' Parse the parameter, and then convert it back to a string.
Dim intervalVal As TimeSpan
If TimeSpan.TryParse( intervalStr, intervalVal ) Then
Dim intervalToStr As String = intervalVal.ToString( )
' Pad the end of the TimeSpan string with spaces if it
' does not contain milliseconds.
Dim pIndex As Integer = intervalToStr.IndexOf( ":"c )
pIndex = intervalToStr.IndexOf( "."c, pIndex )
If pIndex < 0 Then intervalToStr &= " "
Console.WriteLine( "{0,21}", intervalToStr )
' Handle failure of TryParse method.
Else
Console.WriteLine("Parse operation failed.")
End If
End Sub
Public Sub Main( )
Console.WriteLine( "{0,20} {1,21}", _
"String to Parse", "TimeSpan" )
Console.WriteLine( "{0,20} {1,21}", _
"---------------", "---------------------" )
ParseTimeSpan("0")
ParseTimeSpan("14")
ParseTimeSpan("1:2:3")
ParseTimeSpan("0:0:0.250")
ParseTimeSpan("10.20:30:40.50")
ParseTimeSpan("99.23:59:59.9999999")
ParseTimeSpan("0023:0059:0059.0099")
ParseTimeSpan("23:0:0")
ParseTimeSpan("24:0:0")
ParseTimespan("0:59:0")
ParseTimeSpan("0:60:0")
ParseTimespan("0:0:59")
ParseTimeSpan("0:0:60")
ParseTimeSpan("10:")
ParsetimeSpan("10:0")
ParseTimeSpan(":10")
ParseTimeSpan("0:10")
ParseTimeSpan("10:20:")
ParseTimeSpan("10:20:0")
ParseTimeSpan(".123")
ParseTimeSpan("0.12:00")
ParseTimeSpan("10.")
ParseTimeSpan("10.12")
ParseTimeSpan("10.12:00")
End Sub
End Module
' This example generates the following output:
' String to Parse TimeSpan
' --------------- ---------------------
' 0 00:00:00
' 14 14.00:00:00
' 1:2:3 01:02:03
' 0:0:0.250 00:00:00.2500000
' 10.20:30:40.50 10.20:30:40.5000000
' 99.23:59:59.9999999 99.23:59:59.9999999
' 0023:0059:0059.0099 23:59:59.0099000
' 23:0:0 23:00:00
' 24:0:0 Parse operation failed.
' 0:59:0 00:59:00
' 0:60:0 Parse operation failed.
' 0:0:59 00:00:59
' 0:0:60 Parse operation failed.
' 10: Parse operation failed.
' 10:0 10:00:00
' :10 Parse operation failed.
' 0:10 00:10:00
' 10:20: Parse operation failed.
' 10:20:0 10:20:00
' .123 Parse operation failed.
' 0.12:00 12:00:00
' 10. Parse operation failed.
' 10.12 Parse operation failed.
' 10.12:00 10.12:00:00
Remarks
For more information about this API, see Supplemental API remarks for TimeSpan.TryParse.
Applies to
TryParse(ReadOnlySpan<Char>, IFormatProvider, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the span representation of a time interval to its TimeSpan equivalent by using the specified culture-specific formatting information, and returns a value that indicates whether the conversion succeeded.
public:
static bool TryParse(ReadOnlySpan<char> input, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result);public:
static bool TryParse(ReadOnlySpan<char> input, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result) = ISpanParsable<TimeSpan>::TryParse;public static bool TryParse (ReadOnlySpan<char> input, IFormatProvider? formatProvider, out TimeSpan result);public static bool TryParse (ReadOnlySpan<char> input, IFormatProvider formatProvider, out TimeSpan result);static member TryParse : ReadOnlySpan<char> * IFormatProvider * TimeSpan -> boolPublic Shared Function TryParse (input As ReadOnlySpan(Of Char), formatProvider As IFormatProvider, ByRef result As TimeSpan) As BooleanParameters
- input
- ReadOnlySpan<Char>
A span containing the characters representing the time interval to convert.
- 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. This operation returns false if the input parameter is null or Empty, has an invalid format, represents a time interval that is less than TimeSpan.MinValue or greater than TimeSpan.MaxValue, or has at least one days, hours, minutes, or seconds component outside its valid range.
Applies to
TryParse(ReadOnlySpan<Char>, TimeSpan)
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
- Source:
- TimeSpan.cs
Converts the span representation of a time interval to its TimeSpan equivalent and returns a value that indicates whether the conversion succeeded.
public:
static bool TryParse(ReadOnlySpan<char> s, [Runtime::InteropServices::Out] TimeSpan % result);public static bool TryParse (ReadOnlySpan<char> s, out TimeSpan result);static member TryParse : ReadOnlySpan<char> * TimeSpan -> boolPublic Shared Function TryParse (s As ReadOnlySpan(Of Char), ByRef result As TimeSpan) As BooleanParameters
- s
- ReadOnlySpan<Char>
A span containing the characters representing the time interval to convert.
- result
- TimeSpan
When this method returns, contains an object that represents the time interval specified by s, or Zero if the conversion failed. This parameter is passed uninitialized.
Returns
true if s was converted successfully; otherwise, false. This operation returns false if the s parameter is null or Empty, has an invalid format, represents a time interval that is less than TimeSpan.MinValue or greater than TimeSpan.MaxValue, or has at least one days, hours, minutes, or seconds component outside its valid range.
Applies to
TryParse(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 culture-specific formatting information, and returns a value that indicates whether the conversion succeeded.
public:
static bool TryParse(System::String ^ input, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result);public:
static bool TryParse(System::String ^ input, IFormatProvider ^ formatProvider, [Runtime::InteropServices::Out] TimeSpan % result) = IParsable<TimeSpan>::TryParse;public static bool TryParse (string input, IFormatProvider formatProvider, out TimeSpan result);public static bool TryParse (string? input, IFormatProvider? formatProvider, out TimeSpan result);static member TryParse : string * IFormatProvider * TimeSpan -> boolPublic Shared Function TryParse (input As String, formatProvider As IFormatProvider, ByRef result As TimeSpan) As BooleanParameters
- input
- String
A string that specifies the time interval to convert.
- 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. This operation returns false if the input parameter is null or Empty, has an invalid format, represents a time interval that is less than TimeSpan.MinValue or greater than TimeSpan.MaxValue, or has at least one days, hours, minutes, or seconds component outside its valid range.
Examples
The following example defines an array of CultureInfo objects, and uses each object in calls to the TryParse(String, IFormatProvider, TimeSpan) method to parse the elements in a string array. The example illustrates how the conventions of a specific culture influence the formatting operation.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
string[] values = { "6", "6:12", "6:12:14", "6:12:14:45",
"6.12:14:45", "6:12:14:45.3448",
"6:12:14:45,3448", "6:34:14:45" };
CultureInfo[] cultures = { new CultureInfo("en-US"),
new CultureInfo("ru-RU"),
CultureInfo.InvariantCulture };
string header = String.Format("{0,-17}", "String");
foreach (CultureInfo culture in cultures)
header += culture.Equals(CultureInfo.InvariantCulture) ?
String.Format("{0,20}", "Invariant") :
String.Format("{0,20}", culture.Name);
Console.WriteLine(header);
Console.WriteLine();
foreach (string value in values)
{
Console.Write("{0,-17}", value);
foreach (CultureInfo culture in cultures)
{
TimeSpan interval = new TimeSpan();
if (TimeSpan.TryParse(value, culture, out interval))
Console.Write("{0,20}", interval.ToString("c"));
else
Console.Write("{0,20}", "Unable to Parse");
}
Console.WriteLine();
}
}
}
// The example displays the following output:
// String en-US ru-RU Invariant
//
// 6 6.00:00:00 6.00:00:00 6.00:00:00
// 6:12 06:12:00 06:12:00 06:12:00
// 6:12:14 06:12:14 06:12:14 06:12:14
// 6:12:14:45 6.12:14:45 6.12:14:45 6.12:14:45
// 6.12:14:45 6.12:14:45 6.12:14:45 6.12:14:45
// 6:12:14:45.3448 6.12:14:45.3448000 Unable to Parse 6.12:14:45.3448000
// 6:12:14:45,3448 Unable to Parse 6.12:14:45.3448000 Unable to Parse
// 6:34:14:45 Unable to Parse Unable to Parse Unable to Parse
open System
open System.Globalization
let values =
[| "6"; "6:12"; "6:12:14"; "6:12:14:45"
"6.12:14:45"; "6:12:14:45.3448"
"6:12:14:45,3448"; "6:34:14:45" |]
let cultures =
[| CultureInfo "en-US"
CultureInfo "ru-RU"
CultureInfo.InvariantCulture |]
let mutable header = String.Format("{0,-17}", "String")
for culture in cultures do
header <-
if culture.Equals CultureInfo.InvariantCulture then
String.Format("{0,20}", "Invariant")
else
String.Format("{0,20}", culture.Name)
printfn $"{header}\n"
for value in values do
printf $"{value,-17}"
for culture in cultures do
match TimeSpan.TryParse(value, culture) with
| true, interval ->
printfn $"{interval,20:c}"
| _ ->
printfn "%20s" "Unable to Parse"
// The example displays the following output:
// String en-US ru-RU Invariant
//
// 6 6.00:00:00 6.00:00:00 6.00:00:00
// 6:12 06:12:00 06:12:00 06:12:00
// 6:12:14 06:12:14 06:12:14 06:12:14
// 6:12:14:45 6.12:14:45 6.12:14:45 6.12:14:45
// 6.12:14:45 6.12:14:45 6.12:14:45 6.12:14:45
// 6:12:14:45.3448 6.12:14:45.3448000 Unable to Parse 6.12:14:45.3448000
// 6:12:14:45,3448 Unable to Parse 6.12:14:45.3448000 Unable to Parse
// 6:34:14:45 Unable to Parse Unable to Parse Unable to Parse
Imports System.Globalization
Module Example
Public Sub Main()
Dim values() As String = { "6", "6:12", "6:12:14", "6:12:14:45",
"6.12:14:45", "6:12:14:45.3448",
"6:12:14:45,3448", "6:34:14:45" }
Dim cultures() As CultureInfo = { New CultureInfo("en-US"),
New CultureInfo("ru-RU"),
CultureInfo.InvariantCulture }
Dim header As String = String.Format("{0,-17}", "String")
For Each culture As CultureInfo In cultures
header += If(culture.Equals(CultureInfo.InvariantCulture),
String.Format("{0,20}", "Invariant"),
String.Format("{0,20}", culture.Name))
Next
Console.WriteLine(header)
Console.WriteLine()
For Each value As String In values
Console.Write("{0,-17}", value)
For Each culture As CultureInfo In cultures
Dim interval As New TimeSpan()
If TimeSpan.TryParse(value, culture, interval) Then
Console.Write("{0,20}", interval.ToString("c"))
Else
Console.Write("{0,20}", "Unable to Parse")
End If
Next
Console.WriteLine()
Next
End Sub
End Module
' The example displays the following output:
' String en-US ru-RU Invariant
'
' 6 6.00:00:00 6.00:00:00 6.00:00:00
' 6:12 06:12:00 06:12:00 06:12:00
' 6:12:14 06:12:14 06:12:14 06:12:14
' 6:12:14:45 6.12:14:45 6.12:14:45 6.12:14:45
' 6.12:14:45 6.12:14:45 6.12:14:45 6.12:14:45
' 6:12:14:45.3448 6.12:14:45.3448000 Unable to Parse 6.12:14:45.3448000
' 6:12:14:45,3448 Unable to Parse 6.12:14:45.3448000 Unable to Parse
' 6:34:14:45 Unable to Parse Unable to Parse Unable to Parse
Remarks
For more information about this API, see Supplemental API remarks for TimeSpan.TryParse.
