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Convert::ToInt32 Method (String^, IFormatProvider^)

.NET Framework (current version)
 

Converts the specified string representation of a number to an equivalent 32-bit signed integer, using the specified culture-specific formatting information.

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

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public:
static int ToInt32(
	String^ value,
	IFormatProvider^ provider
)

Parameters

value
Type: System::String^

A string that contains the number to convert.

provider
Type: System::IFormatProvider^

An object that supplies culture-specific formatting information.

Return Value

Type: System::Int32

A 32-bit signed integer that is equivalent to the number in value, or 0 (zero) if value is null.

Exception Condition
FormatException

value does not consist of an optional sign followed by a sequence of digits (0 through 9).

OverflowException

value represents a number that is less than Int32::MinValue or greater than Int32::MaxValue.

The return value is the result of invoking the Int32::Parse method on value.

provider is an IFormatProvider instance that obtains a NumberFormatInfo object. The NumberFormatInfo object provides culture-specific information about the format of value. If provider is null, the NumberFormatInfo for the current culture is used.

If you prefer not to handle an exception if the conversion fails, you can call the Int32::TryParse method instead. It returns a Boolean value that indicates whether the conversion succeeded or failed.

The following example defines a custom NumberFormatInfo object that recognizes the string "pos" as the positive sign and the string "neg" as the negative sign. It then attempts to convert each element of a numeric string array to an integer using both this provider and the NumberFormatInfo provider for the invariant culture.

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

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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