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TimeSpan::TryParseExact Method (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, and returns a value that indicates whether the conversion succeeded. The format of the string representation must match the specified format exactly.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

static bool TryParseExact(
	String^ input, 
	String^ format, 
	IFormatProvider^ formatProvider, 
	[OutAttribute] TimeSpan% result


Type: System::String

A string that specifies the time interval to convert.

Type: System::String

A standard or custom format string that defines the required format of input.

Type: System::IFormatProvider

An object that supplies culture-specific formatting information.

Type: System::TimeSpan%

When this method returns, contains an object that represents the time interval specified by input, or TimeSpan::Zero if the conversion failed. This parameter is passed uninitialized.

Return Value

Type: System::Boolean
true if input was converted successfully; otherwise, false.

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 noteImportant

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:

If formatProvider is nullptr, the DateTimeFormatInfo object that is associated with the current culture is used.

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.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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