Char.IConvertible.ToDouble(IFormatProvider) 方法

定義

注意:不支援這項轉換。Note This conversion is not supported. 嘗試這麼做會擲回 InvalidCastExceptionAttempting to do so throws an InvalidCastException.

 virtual double System.IConvertible.ToDouble(IFormatProvider ^ provider) = IConvertible::ToDouble;
double IConvertible.ToDouble (IFormatProvider provider);
abstract member System.IConvertible.ToDouble : IFormatProvider -> double
override this.System.IConvertible.ToDouble : IFormatProvider -> double
Function ToDouble (provider As IFormatProvider) As Double Implements IConvertible.ToDouble

參數

provider
IFormatProvider

這個參數已忽略。This parameter is ignored.

傳回

Double

沒有傳回值。No value is returned.

實作

例外狀況

不支援此轉換。This conversion is not supported.

適用於