DBNull.IConvertible.ToInt64 Method (IFormatProvider)

 

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

This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.

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

Private Function ToInt64 (
	provider As IFormatProvider
) As Long
	Implements IConvertible.ToInt64

Parameters

provider
Type: System.IFormatProvider

An object that implements the IFormatProvider interface. (This parameter is not used; specify null.)

Return Value

Type: System.Int64

None. The return value for this member is not used.

Exception Condition
InvalidCastException

This conversion is not supported for the DBNull type.

.NET Framework
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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