Convert.ToInt32 Method (Object)

Converts the value of the specified object to a 32-bit signed integer.

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

static member ToInt32 : 
        value:Object -> int

Parameters

value
Type: System.Object

An object that implements the IConvertible interface, or a null reference (Nothing in Visual Basic).

Return Value

Type: System.Int32
A 32-bit signed integer equivalent to value, or zero if value is a null reference (Nothing in Visual Basic).

ExceptionCondition
FormatException

value is not in an appropriate format.

InvalidCastException

value does not implement the IConvertible interface.

-or-

The conversion is not supported.

OverflowException

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

If value is not a null reference (Nothing in Visual Basic), this method wraps a call to the IConvertible.ToInt32 implementation of the underlying type of value.

The following example attempts to convert each element in an object array to an integer.

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, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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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