String.IConvertible.ToType(Type, IFormatProvider) 方法

定義

如需這個成員的說明,請參閱 ToType(Type, IFormatProvider)For a description of this member, see ToType(Type, IFormatProvider).

 virtual System::Object ^ System.IConvertible.ToType(Type ^ type, IFormatProvider ^ provider) = IConvertible::ToType;
object IConvertible.ToType (Type type, IFormatProvider provider);

參數

type
Type

傳回的物件之類型。The type of the returned object.

provider
IFormatProvider

物件,提供特定文化特性格式資訊。An object that provides culture-specific formatting information.

傳回

目前 String 物件的轉換值。The converted value of the current String object.

實作

例外狀況

typenulltype is null.

無法將目前 String 物件的值轉換成 type 參數所指定的類型。The value of the current String object cannot be converted to the type specified by the type parameter.

備註

這個成員是明確介面成員實作,This member is an explicit interface member implementation. 只有在 String 執行個體轉換成 IConvertible 介面時,才能使用這個成員。It can be used only when the String instance is cast to an IConvertible interface. 建議的替代做法是呼叫 ChangeType 方法。The recommended alternative is to call the ChangeType method.

適用於