DBNull.IConvertible.ToInt64(IFormatProvider) Method

Definition

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

 virtual long System.IConvertible.ToInt64(IFormatProvider ^ provider) = IConvertible::ToInt64;
long IConvertible.ToInt64 (IFormatProvider provider);
abstract member System.IConvertible.ToInt64 : IFormatProvider -> int64
override this.System.IConvertible.ToInt64 : IFormatProvider -> int64
Function ToInt64 (provider As IFormatProvider) As Long Implements IConvertible.ToInt64

Parameters

provider
IFormatProvider

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

Returns

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

Implements

Exceptions

This conversion is not supported for the DBNull type.

Applies to

제품 버전
.NET Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 2.0, 2.1

See also