InvalidCastException Class

May 11, 2014

The exception that is thrown for invalid casting or explicit conversion.

System.Object
  System.Exception
    System.SystemException
      System.InvalidCastException

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

public class InvalidCastException : SystemException

The InvalidCastException type exposes the following members.

  NameDescription
Public methodInvalidCastException()Initializes a new instance of the InvalidCastException class.
Public methodInvalidCastException(String)Initializes a new instance of the InvalidCastException class with a specified error message.
Public methodInvalidCastException(String, Exception)Initializes a new instance of the InvalidCastException class with a specified error message and a reference to the inner exception that is the cause of this exception.
Public methodInvalidCastException(String, Int32)Initializes a new instance of the InvalidCastException class with a specified message and error code.
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  NameDescription
Public propertyDataGets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
Public propertyHelpLinkGets or sets a link to the help file associated with this exception. (Inherited from Exception.)
Public propertyHResultGets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
Public propertyInnerExceptionGets the Exception instance that caused the current exception. (Inherited from Exception.)
Public propertyMessageGets a message that describes the current exception. (Inherited from Exception.)
Public propertySourceGets or sets the name of the application or the object that causes the error. (Inherited from Exception.)
Public propertyStackTraceGets a string representation of the frames on the call stack at the time the current exception was thrown. (Inherited from Exception.)
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  NameDescription
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetBaseExceptionWhen overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the runtime type of the current instance. (Inherited from Exception.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringCreates and returns a string representation of the current exception. (Inherited from Exception.)
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InvalidCastException is thrown if:

  • For a conversion from a Single or a Double to a Decimal, the source value is infinity, Not-a-Number (NaN), or too large to be represented as the destination type.

  • A failure occurs during an explicit reference conversion.

For an explicit reference conversion to be successful, the source value must be null, or the object type referenced by the source argument must be convertible to the destination type by an implicit reference conversion.

For information on conversions supported by the system, see the Convert class. For errors that occur when the destination type can store source type values, but is not large enough to store a specific source value, see OverflowException exception.

The following Microsoft intermediate language (MSIL) instructions throw InvalidCastException

  • castclass

  • refanyval

  • unbox

For a list of initial property values for an instance of InvalidCastException, see the InvalidCastException constructors.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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