IConvertible Interface

IConvertible Interface: define specific methods that will enable the type of value or reference value is converted to a common language runtime types have equivalent values.

The common language runtime types include: Boolean, SByte, Byte, Int16, UInt16, Int32, UInt32, Int64, UInt64, Single, Double, Decimal, DateTime, Char and String.

These types are inherited IConvertible interface.

Look interface definition:

    public interface IConvertible
    {
        TypeCode GetTypeCode();

        bool ToBoolean(IFormatProvider provider);

        char ToChar(IFormatProvider provider);

        sbyte ToSByte(IFormatProvider provider);

        byte ToByte(IFormatProvider provider);

        short ToInt16(IFormatProvider provider);

        ushort ToUInt16(IFormatProvider provider);

        int ToInt32(IFormatProvider provider);

        uint ToUInt32(IFormatProvider provider);

        long ToInt64(IFormatProvider provider);

        ulong ToUInt64(IFormatProvider provider);

        float ToSingle(IFormatProvider provider);

        double ToDouble(IFormatProvider provider);

        decimal ToDecimal(IFormatProvider provider);

        DateTime ToDateTime(IFormatProvider provider);

        string ToString(IFormatProvider provider);

        object ToType(Type conversionType, IFormatProvider provider);
    }

When a class can not be converted to a certain type of common language runtime, it should lead to InvalidCastException exception

GetTypeCode interface method returns the class object TypeCode. TypeCode as an enumerated type specifies the type of object.