.NET Framework Class Library
StringIConvertibleToBoolean Method

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

For a description of this member, see ToBoolean.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)
Syntax
Private Function ToBoolean ( _
	provider As [%$TOPIC/bb346937_en-us_VS_110_2_0_0_0_0%] _
) As [%$TOPIC/bb346937_en-us_VS_110_2_0_0_0_1%] Implements [%$TOPIC/bb346937_en-us_VS_110_2_0_0_0_2%].[%$TOPIC/bb346937_en-us_VS_110_2_0_0_0_3%]
[%$TOPIC/bb346937_en-us_VS_110_2_0_1_0_0%] [%$TOPIC/bb346937_en-us_VS_110_2_0_1_0_1%].[%$TOPIC/bb346937_en-us_VS_110_2_0_1_0_2%](
	[%$TOPIC/bb346937_en-us_VS_110_2_0_1_0_3%] provider
)
private:
virtual [%$TOPIC/bb346937_en-us_VS_110_2_0_2_0_0%] ToBoolean(
	[%$TOPIC/bb346937_en-us_VS_110_2_0_2_0_1%]^ provider
) sealed = [%$TOPIC/bb346937_en-us_VS_110_2_0_2_0_2%]::[%$TOPIC/bb346937_en-us_VS_110_2_0_2_0_3%]
private abstract ToBoolean : 
        provider:[%$TOPIC/bb346937_en-us_VS_110_2_0_3_0_0%] -> [%$TOPIC/bb346937_en-us_VS_110_2_0_3_0_1%]  
private override ToBoolean : 
        provider:[%$TOPIC/bb346937_en-us_VS_110_2_0_3_0_2%] -> [%$TOPIC/bb346937_en-us_VS_110_2_0_3_0_3%]

Parameters

provider
Type: SystemIFormatProvider

This parameter is ignored.

Return Value

Type: SystemBoolean
true if the value of the current string is TrueString; false if the value of the current string is FalseString.

Implements

IConvertibleToBoolean(IFormatProvider)
Exceptions
ExceptionCondition
FormatException

The value of the current string is not TrueString or FalseString.

Remarks

This member is an explicit interface member implementation. It can be used only when the String instance is cast to an IConvertible interface. The recommended alternative is to call the ConvertToBoolean(String) method.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Phone apps

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

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.