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C# IConvertible.ToBoolean方法代码示例

本文整理汇总了C#中IConvertible.ToBoolean方法的典型用法代码示例。如果您正苦于以下问题：C# IConvertible.ToBoolean方法的具体用法？C# IConvertible.ToBoolean怎么用？C# IConvertible.ToBoolean使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IConvertible的用法示例。


在下文中一共展示了IConvertible.ToBoolean方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: ToBoolean

		private static bool ToBoolean (object value, bool explicitConversion, IConvertible convertible)
		{
			TypeCode preferredType = GetTypeCode (value, convertible);
			switch (preferredType) {
					//undefined & null
				case TypeCode.Empty:
				case TypeCode.DBNull:
					return false;

				case TypeCode.Boolean:
					return convertible.ToBoolean (null);

				case TypeCode.Byte:
				case TypeCode.Char:
				case TypeCode.Decimal:
				case TypeCode.Double:
				case TypeCode.Int16:
				case TypeCode.Int32:
				case TypeCode.Int64:
				case TypeCode.SByte:
				case TypeCode.Single:
				case TypeCode.UInt16:
				case TypeCode.UInt32:
				case TypeCode.UInt64:
					double d = convertible.ToDouble (null);
					return ((d != 0.0) && !double.IsNaN (d));
				case TypeCode.String:
					string str = convertible.ToString ();
					return str.Length != 0;
				case TypeCode.Object:
					return true;

				//TODO datetime find behaviour maybe as a number
				case TypeCode.DateTime:
					return true;
								
			}
			throw new NotImplementedException ();
		}
开发者ID:alesliehughes，项目名称:olive，代码行数:39，代码来源:ConvertHelper.cs

示例2: DefaultToType

        internal static Object DefaultToType(IConvertible value, Type targetType, IFormatProvider provider) {
            BCLDebug.Assert(value!=null, "[Convert.DefaultToType]value!=null");

            if (targetType==null) {
                throw new ArgumentNullException("targetType");
            }
            
            if (value.GetType()==targetType) {
                return value;
            }

            if (targetType==ConvertTypes[(int)TypeCode.Boolean])
                return value.ToBoolean(provider);
            if (targetType==ConvertTypes[(int)TypeCode.Char])
                return value.ToChar(provider);
            if (targetType==ConvertTypes[(int)TypeCode.SByte])
                return value.ToSByte(provider);
            if (targetType==ConvertTypes[(int)TypeCode.Byte])
                return value.ToByte(provider);
            if (targetType==ConvertTypes[(int)TypeCode.Int16]) 
                return value.ToInt16(provider);
            if (targetType==ConvertTypes[(int)TypeCode.UInt16])
                return value.ToUInt16(provider);
            if (targetType==ConvertTypes[(int)TypeCode.Int32])
                return value.ToInt32(provider);
            if (targetType==ConvertTypes[(int)TypeCode.UInt32])
                return value.ToUInt32(provider);
            if (targetType==ConvertTypes[(int)TypeCode.Int64])
                return value.ToInt64(provider);
            if (targetType==ConvertTypes[(int)TypeCode.UInt64])
                return value.ToUInt64(provider);
            if (targetType==ConvertTypes[(int)TypeCode.Single])
                return value.ToSingle(provider);
            if (targetType==ConvertTypes[(int)TypeCode.Double])
                return value.ToDouble(provider);
            if (targetType==ConvertTypes[(int)TypeCode.Decimal])
                return value.ToDecimal(provider);
            if (targetType==ConvertTypes[(int)TypeCode.DateTime])
                return value.ToDateTime(provider);
            if (targetType==ConvertTypes[(int)TypeCode.String]) {
                return value.ToString(provider);
            }
            if (targetType==ConvertTypes[(int)TypeCode.Object])
                return (Object)value;
            if (targetType==ConvertTypes[(int)TypeCode.DBNull])
                throw new InvalidCastException(Environment.GetResourceString("InvalidCast_DBNull"));
            if (targetType==ConvertTypes[(int)TypeCode.Empty]) 
                throw new InvalidCastException(Environment.GetResourceString("InvalidCast_Empty"));
            throw new InvalidCastException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("InvalidCast_FromTo"), value.GetType().FullName, targetType.FullName));
        }
开发者ID:gbarnett，项目名称:shared-source-cli-2.0，代码行数:50，代码来源:convert.cs

示例3: ToUint32

 internal static uint ToUint32(Object value, IConvertible ic){
   switch (Convert.GetTypeCode(value, ic)){
     case TypeCode.Empty: return 0;
     case TypeCode.DBNull: return 0;
     case TypeCode.Boolean: return ic.ToBoolean(null) ? (uint)1 : (uint)0;
     case TypeCode.Char: return (uint)ic.ToChar(null);
     case TypeCode.Byte:
     case TypeCode.UInt16:
     case TypeCode.UInt32: return ic.ToUInt32(null);
     case TypeCode.UInt64: return (uint)ic.ToUInt64(null);
     case TypeCode.SByte:
     case TypeCode.Int16:
     case TypeCode.Int32:
     case TypeCode.Int64: return (uint)ic.ToInt64(null);
     case TypeCode.Single: return (uint)ic.ToSingle(null);
     case TypeCode.Double:
     case TypeCode.Decimal: return (uint)ic.ToDouble(null);
     case TypeCode.Object:
     case TypeCode.DateTime:
       Object pval = Convert.ToPrimitive(value, PreferredType.Number, ref ic);
       if (pval != value)
         return Convert.ToUint32(pval, ic);
       else
         return 0;
     case TypeCode.String: return (uint)Convert.ToNumber(ic.ToString(null));
   }
   return 0; //should never get here
 }
开发者ID:ArildF，项目名称:masters，代码行数:28，代码来源:convert.cs

示例4: InternalNegObj

        private static object InternalNegObj(object obj, IConvertible conv, TypeCode tc)
        {
            switch (tc)
            {
                case TypeCode.Empty:
                    return 0;

                case TypeCode.Boolean:
                    if (obj is bool)
                    {
                        return -((short) -(((bool) obj) > false));
                    }
                    return -((short) -(conv.ToBoolean(null) > false));

                case TypeCode.Byte:
                    if (obj is byte)
                    {
                        return (short) -((byte) obj);
                    }
                    return (short) -conv.ToByte(null);

                case TypeCode.Int16:
                    int num4;
                    if (obj is short)
                    {
                        num4 = 0 - ((short) obj);
                    }
                    else
                    {
                        num4 = 0 - conv.ToInt16(null);
                    }
                    if ((num4 >= -32768) && (num4 <= 0x7fff))
                    {
                        return (short) num4;
                    }
                    return num4;

                case TypeCode.Int32:
                    long num5;
                    if (obj is int)
                    {
                        num5 = 0L - ((int) obj);
                    }
                    else
                    {
                        num5 = 0L - conv.ToInt32(null);
                    }
                    if ((num5 >= -2147483648L) && (num5 <= 0x7fffffffL))
                    {
                        return (int) num5;
                    }
                    return num5;

                case TypeCode.Int64:
                    try
                    {
                        if (obj is long)
                        {
                            return (0L - ((long) obj));
                        }
                        return (0L - conv.ToInt64(null));
                    }
                    catch (StackOverflowException exception)
                    {
                        throw exception;
                    }
                    catch (OutOfMemoryException exception2)
                    {
                        throw exception2;
                    }
                    catch (ThreadAbortException exception3)
                    {
                        throw exception3;
                    }
                    catch (Exception)
                    {
                        return decimal.Negate(conv.ToDecimal(null));
                    }
                    break;

                case TypeCode.Single:
                    goto Label_01B9;

                case TypeCode.Double:
                    if (obj is double)
                    {
                        return -((double) obj);
                    }
                    return -conv.ToDouble(null);

                case TypeCode.Decimal:
                    break;

                case TypeCode.String:
                {
                    string str = obj as string;
                    if (str == null)
                    {
                        return -DoubleType.FromString(conv.ToString(null));
                    }
//.........这里部分代码省略.........
开发者ID:pritesh-mandowara-sp，项目名称:DecompliedDotNetLibraries，代码行数:101，代码来源:ObjectType.cs

示例5: DefaultToType

		internal static object DefaultToType(IConvertible value, Type targetType, IFormatProvider provider)
		{
			if (targetType == null)
			{
				throw new ArgumentNullException("targetType");
			}
			RuntimeType left = targetType as RuntimeType;
			if (left != null)
			{
				if (value.GetType() == targetType)
				{
					return value;
				}
				if (left == Convert.ConvertTypes[3])
				{
					return value.ToBoolean(provider);
				}
				if (left == Convert.ConvertTypes[4])
				{
					return value.ToChar(provider);
				}
				if (left == Convert.ConvertTypes[5])
				{
					return value.ToSByte(provider);
				}
				if (left == Convert.ConvertTypes[6])
				{
					return value.ToByte(provider);
				}
				if (left == Convert.ConvertTypes[7])
				{
					return value.ToInt16(provider);
				}
				if (left == Convert.ConvertTypes[8])
				{
					return value.ToUInt16(provider);
				}
				if (left == Convert.ConvertTypes[9])
				{
					return value.ToInt32(provider);
				}
				if (left == Convert.ConvertTypes[10])
				{
					return value.ToUInt32(provider);
				}
				if (left == Convert.ConvertTypes[11])
				{
					return value.ToInt64(provider);
				}
				if (left == Convert.ConvertTypes[12])
				{
					return value.ToUInt64(provider);
				}
				if (left == Convert.ConvertTypes[13])
				{
					return value.ToSingle(provider);
				}
				if (left == Convert.ConvertTypes[14])
				{
					return value.ToDouble(provider);
				}
				if (left == Convert.ConvertTypes[15])
				{
					return value.ToDecimal(provider);
				}
				if (left == Convert.ConvertTypes[16])
				{
					return value.ToDateTime(provider);
				}
				if (left == Convert.ConvertTypes[18])
				{
					return value.ToString(provider);
				}
				if (left == Convert.ConvertTypes[1])
				{
					return value;
				}
				if (left == Convert.EnumType)
				{
					return (Enum)value;
				}
				if (left == Convert.ConvertTypes[2])
				{
					throw new InvalidCastException(Environment.GetResourceString("InvalidCast_DBNull"));
				}
				if (left == Convert.ConvertTypes[0])
				{
					throw new InvalidCastException(Environment.GetResourceString("InvalidCast_Empty"));
				}
			}
			throw new InvalidCastException(Environment.GetResourceString("InvalidCast_FromTo", new object[]
			{
				value.GetType().FullName, 
				targetType.FullName
			}));
		}
开发者ID:ChristianWulf，项目名称:CSharpKDMDiscoverer，代码行数:96，代码来源:Convert.cs

示例6: ToBoolean

 internal static bool ToBoolean(Object value, IConvertible ic){
   switch (Convert.GetTypeCode(value, ic)){
     case TypeCode.Empty: return false;
     case TypeCode.Object:
       if (value is Missing || value is System.Reflection.Missing) return false;
       Type t = value.GetType();
       MethodInfo meth = t.GetMethod("op_True", BindingFlags.ExactBinding|BindingFlags.Public|BindingFlags.Static, null, new Type[]{t}, null);
       if (meth != null && (meth.Attributes & MethodAttributes.SpecialName) != 0 && meth.ReturnType == Typeob.Boolean){
         meth = new JSMethodInfo(meth);
         return (bool)meth.Invoke(null, BindingFlags.SuppressChangeType, null, new Object[]{value}, null);
       }
       return true;
     case TypeCode.DBNull: return false;
     case TypeCode.Boolean: return ic.ToBoolean(null);
     case TypeCode.Char: return ic.ToChar(null) != (Char)0;
     case TypeCode.SByte:
     case TypeCode.Byte:
     case TypeCode.Int16:
     case TypeCode.UInt16:
     case TypeCode.Int32: return ic.ToInt32(null) != 0;
     case TypeCode.UInt32:
     case TypeCode.Int64: return ic.ToInt64(null) != 0;
     case TypeCode.UInt64: return ic.ToUInt64(null) != 0;
     case TypeCode.Single:
     case TypeCode.Double:
       double d = ic.ToDouble(null);
       if (d != d) return false; else return d != 0;
     case TypeCode.Decimal: return ic.ToDecimal(null) != (Decimal)0;
     case TypeCode.DateTime: return true;
     case TypeCode.String: return ic.ToString(null).Length != 0;
   }
   return false; //should never get here
 }
开发者ID:ArildF，项目名称:masters，代码行数:33，代码来源:convert.cs

示例7: ToUint32

        internal static uint ToUint32(object value, IConvertible ic)
        {
            switch (GetTypeCode(value, ic))
            {
                case TypeCode.Empty:
                    return 0;

                case TypeCode.Object:
                case TypeCode.DateTime:
                {
                    object obj2 = ToPrimitive(value, PreferredType.Number, ref ic);
                    if (obj2 == value)
                    {
                        return 0;
                    }
                    return ToUint32(obj2, ic);
                }
                case TypeCode.DBNull:
                    return 0;

                case TypeCode.Boolean:
                    if (ic.ToBoolean(null))
                    {
                        return 1;
                    }
                    return 0;

                case TypeCode.Char:
                    return ic.ToChar(null);

                case TypeCode.SByte:
                case TypeCode.Int16:
                case TypeCode.Int32:
                case TypeCode.Int64:
                    return (uint) ic.ToInt64(null);

                case TypeCode.Byte:
                case TypeCode.UInt16:
                case TypeCode.UInt32:
                    return ic.ToUInt32(null);

                case TypeCode.UInt64:
                    return (uint) ic.ToUInt64(null);

                case TypeCode.Single:
                case TypeCode.Double:
                    return (uint) Runtime.DoubleToInt64(ic.ToDouble(null));

                case TypeCode.Decimal:
                    return (uint) Runtime.UncheckedDecimalToInt64(ic.ToDecimal(null));

                case TypeCode.String:
                    return (uint) Runtime.DoubleToInt64(ToNumber(ic.ToString(null)));
            }
            return 0;
        }
开发者ID:pritesh-mandowara-sp，项目名称:DecompliedDotNetLibraries，代码行数:56，代码来源:Convert.cs

示例8: JScriptStrictEquals

        internal static bool JScriptStrictEquals(object v1, object v2, IConvertible ic1, IConvertible ic2, TypeCode t1, TypeCode t2, bool checkForDebuggerObjects)
        {
            long num7;
            switch (t1)
            {
                case TypeCode.Empty:
                    return (t2 == TypeCode.Empty);

                case TypeCode.Object:
                    if (v1 != v2)
                    {
                        if ((v1 is Microsoft.JScript.Missing) || (v1 is System.Reflection.Missing))
                        {
                            v1 = null;
                        }
                        if (v1 == v2)
                        {
                            return true;
                        }
                        if ((v2 is Microsoft.JScript.Missing) || (v2 is System.Reflection.Missing))
                        {
                            v2 = null;
                        }
                        if (checkForDebuggerObjects)
                        {
                            IDebuggerObject obj2 = v1 as IDebuggerObject;
                            if (obj2 != null)
                            {
                                IDebuggerObject o = v2 as IDebuggerObject;
                                if (o != null)
                                {
                                    return obj2.IsEqual(o);
                                }
                            }
                        }
                        return (v1 == v2);
                    }
                    return true;

                case TypeCode.DBNull:
                    return (t2 == TypeCode.DBNull);

                case TypeCode.Boolean:
                    if (t2 != TypeCode.Boolean)
                    {
                        return false;
                    }
                    return (ic1.ToBoolean(null) == ic2.ToBoolean(null));

                case TypeCode.Char:
                {
                    char ch = ic1.ToChar(null);
                    switch (t2)
                    {
                        case TypeCode.Char:
                            return (ch == ic2.ToChar(null));

                        case TypeCode.SByte:
                        case TypeCode.Byte:
                        case TypeCode.Int16:
                        case TypeCode.UInt16:
                        case TypeCode.Int32:
                        case TypeCode.UInt32:
                        case TypeCode.Int64:
                            return (ch == ic2.ToInt64(null));

                        case TypeCode.UInt64:
                            return (ch == ic2.ToUInt64(null));

                        case TypeCode.Single:
                        case TypeCode.Double:
                            return (((double) ch) == ic2.ToDouble(null));

                        case TypeCode.Decimal:
                            return (ch == ic2.ToDecimal(null));

                        case TypeCode.String:
                        {
                            string str = ic2.ToString(null);
                            return ((str.Length == 1) && (ch == str[0]));
                        }
                    }
                    break;
                }
                case TypeCode.SByte:
                {
                    sbyte num = ic1.ToSByte(null);
                    switch (t2)
                    {
                        case TypeCode.Char:
                            return (num == ic2.ToChar(null));

                        case TypeCode.SByte:
                        case TypeCode.Byte:
                        case TypeCode.Int16:
                        case TypeCode.UInt16:
                        case TypeCode.Int32:
                        case TypeCode.UInt32:
                        case TypeCode.Int64:
                            return (num == ic2.ToInt64(null));
//.........这里部分代码省略.........
开发者ID:pritesh-mandowara-sp，项目名称:DecompliedDotNetLibraries，代码行数:101，代码来源:StrictEquality.cs

示例9: ToNumber

        internal static double ToNumber(object value, IConvertible ic)
        {
            switch (GetTypeCode(value, ic))
            {
                case TypeCode.Empty:
                    return double.NaN;

                case TypeCode.Object:
                case TypeCode.DateTime:
                {
                    object obj2 = ToPrimitive(value, PreferredType.Number, ref ic);
                    if (obj2 == value)
                    {
                        return double.NaN;
                    }
                    return ToNumber(obj2, ic);
                }
                case TypeCode.DBNull:
                    return 0.0;

                case TypeCode.Boolean:
                    return (ic.ToBoolean(null) ? ((double) 1) : ((double) 0));

                case TypeCode.Char:
                    return (double) ic.ToChar(null);

                case TypeCode.SByte:
                case TypeCode.Byte:
                case TypeCode.Int16:
                case TypeCode.UInt16:
                case TypeCode.Int32:
                    return (double) ic.ToInt32(null);

                case TypeCode.UInt32:
                case TypeCode.Int64:
                    return (double) ic.ToInt64(null);

                case TypeCode.UInt64:
                    return (double) ic.ToUInt64(null);

                case TypeCode.Single:
                case TypeCode.Double:
                case TypeCode.Decimal:
                    return ic.ToDouble(null);

                case TypeCode.String:
                    return ToNumber(ic.ToString(null));
            }
            return 0.0;
        }
开发者ID:pritesh-mandowara-sp，项目名称:DecompliedDotNetLibraries，代码行数:50，代码来源:Convert.cs

示例10: ToString

        internal static string ToString(object value, PreferredType pref, IConvertible ic, bool explicitOK)
        {
            Enum enum2 = value as Enum;
            if (enum2 != 0)
            {
                return enum2.ToString("G");
            }
            EnumWrapper wrapper = value as EnumWrapper;
            if (wrapper != null)
            {
                return wrapper.ToString();
            }
            TypeCode typeCode = GetTypeCode(value, ic);
            if (pref == PreferredType.LocaleString)
            {
                switch (typeCode)
                {
                    case TypeCode.SByte:
                    case TypeCode.Byte:
                    case TypeCode.Int16:
                    case TypeCode.UInt16:
                    case TypeCode.Int32:
                    case TypeCode.UInt32:
                    case TypeCode.Single:
                    case TypeCode.Double:
                    {
                        double num = ic.ToDouble(null);
                        return num.ToString(((num <= -1E+15) || (num >= 1E+15)) ? "g" : "n", NumberFormatInfo.CurrentInfo);
                    }
                    case TypeCode.Int64:
                        return ic.ToInt64(null).ToString("n", NumberFormatInfo.CurrentInfo);

                    case TypeCode.UInt64:
                        return ic.ToUInt64(null).ToString("n", NumberFormatInfo.CurrentInfo);

                    case TypeCode.Decimal:
                        return ic.ToDecimal(null).ToString("n", NumberFormatInfo.CurrentInfo);
                }
            }
            switch (typeCode)
            {
                case TypeCode.Empty:
                    if (explicitOK)
                    {
                        return "undefined";
                    }
                    return null;

                case TypeCode.Object:
                    return ToString(ToPrimitive(value, pref, ref ic), ic);

                case TypeCode.DBNull:
                    if (explicitOK)
                    {
                        return "null";
                    }
                    return null;

                case TypeCode.Boolean:
                    if (ic.ToBoolean(null))
                    {
                        return "true";
                    }
                    return "false";

                case TypeCode.Char:
                case TypeCode.SByte:
                case TypeCode.Byte:
                case TypeCode.Int16:
                case TypeCode.UInt16:
                case TypeCode.Int32:
                case TypeCode.UInt32:
                case TypeCode.Int64:
                case TypeCode.UInt64:
                case TypeCode.Decimal:
                case TypeCode.String:
                    return ic.ToString(null);

                case TypeCode.Single:
                case TypeCode.Double:
                    return ToString(ic.ToDouble(null));

                case TypeCode.DateTime:
                    return ToString(DateConstructor.ob.Construct(ic.ToDateTime(null)));
            }
            return null;
        }
开发者ID:pritesh-mandowara-sp，项目名称:DecompliedDotNetLibraries，代码行数:87，代码来源:Convert.cs

示例11: ToBoolean

        internal static bool ToBoolean(object value, IConvertible ic)
        {
            switch (GetTypeCode(value, ic))
            {
                case TypeCode.Empty:
                    return false;

                case TypeCode.Object:
                {
                    if ((value is Microsoft.JScript.Missing) || (value is System.Reflection.Missing))
                    {
                        return false;
                    }
                    Type type = value.GetType();
                    MethodInfo method = type.GetMethod("op_True", BindingFlags.ExactBinding | BindingFlags.Public | BindingFlags.Static, null, new Type[] { type }, null);
                    if (((method != null) && ((method.Attributes & MethodAttributes.SpecialName) != MethodAttributes.PrivateScope)) && (method.ReturnType == typeof(bool)))
                    {
                        method = new JSMethodInfo(method);
                        return (bool) method.Invoke(null, BindingFlags.SuppressChangeType, null, new object[] { value }, null);
                    }
                    return true;
                }
                case TypeCode.DBNull:
                    return false;

                case TypeCode.Boolean:
                    return ic.ToBoolean(null);

                case TypeCode.Char:
                    return (ic.ToChar(null) != '\0');

                case TypeCode.SByte:
                case TypeCode.Byte:
                case TypeCode.Int16:
                case TypeCode.UInt16:
                case TypeCode.Int32:
                    return (ic.ToInt32(null) != 0);

                case TypeCode.UInt32:
                case TypeCode.Int64:
                    return (ic.ToInt64(null) != 0L);

                case TypeCode.UInt64:
                    return (ic.ToUInt64(null) != 0L);

                case TypeCode.Single:
                case TypeCode.Double:
                {
                    double num = ic.ToDouble(null);
                    return ((num == num) && !(num == 0.0));
                }
                case TypeCode.Decimal:
                    return (ic.ToDecimal(null) != 0M);

                case TypeCode.DateTime:
                    return true;

                case TypeCode.String:
                    return (ic.ToString(null).Length != 0);
            }
            return false;
        }
开发者ID:pritesh-mandowara-sp，项目名称:DecompliedDotNetLibraries，代码行数:62，代码来源:Convert.cs

示例12: ToVBBoolConv

 private static IConvertible ToVBBoolConv(IConvertible conv)
 {
     if (conv.ToBoolean(null))
     {
         return (IConvertible) (-1);
     }
     return (IConvertible) 0;
 }
开发者ID:pritesh-mandowara-sp，项目名称:DecompliedDotNetLibraries，代码行数:8，代码来源:ObjectType.cs

示例13: ToVBBool

 private static int ToVBBool(IConvertible conv)
 {
     if (conv.ToBoolean(null))
     {
         return -1;
     }
     return 0;
 }
开发者ID:pritesh-mandowara-sp，项目名称:DecompliedDotNetLibraries，代码行数:8，代码来源:ObjectType.cs

示例14: DefaultToType

	// Default implementation of the "ToType" methods in
	// the primitive classes like Byte, Int32, Boolean, etc.
	internal static Object DefaultToType(IConvertible obj, Type targetType,
										 IFormatProvider provider,
										 bool recursive)
			{
				if(targetType != null)
				{
					if(obj.GetType() == targetType)
					{
						return obj;
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Boolean])
					{
						return (Object)(obj.ToBoolean(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Char])
					{
						return (Object)(obj.ToChar(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.SByte])
					{
						return (Object)(obj.ToSByte(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Byte])
					{
						return (Object)(obj.ToByte(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Int16])
					{
						return (Object)(obj.ToInt16(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.UInt16])
					{
						return (Object)(obj.ToUInt16(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Int32])
					{
						return (Object)(obj.ToInt32(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.UInt32])
					{
						return (Object)(obj.ToUInt32(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Int64])
					{
						return (Object)(obj.ToInt64(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.UInt64])
					{
						return (Object)(obj.ToUInt64(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Single])
					{
						return (Object)(obj.ToSingle(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Double])
					{
						return (Object)(obj.ToDouble(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Decimal])
					{
						return (Object)(obj.ToDecimal(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.DateTime])
					{
						return (Object)(obj.ToDateTime(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.String])
					{
						return (Object)(obj.ToString(provider));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Object])
					{
						return obj;
					}
					else if(targetType == ConvertTypes[(int)TypeCode.Empty])
					{
						throw new InvalidCastException
							(_("InvalidCast_Empty"));
					}
					else if(targetType == ConvertTypes[(int)TypeCode.DBNull])
					{
						throw new InvalidCastException
							(_("InvalidCast_DBNull"));
					}
					else if(recursive)
					{
						throw new InvalidCastException
							(String.Format
								(_("InvalidCast_FromTo"),
		 					     obj.GetType().FullName, targetType.FullName));
					}
					else
					{
						// We weren't called from a "ToType" method,
						// so we can use it to handle the default case.
						return obj.ToType(targetType, provider);
					}
				}
//.........这里部分代码省略.........
开发者ID:jjenki11，项目名称:blaze-chem-rendering，代码行数:101，代码来源:Convert.cs

示例15: ExecuteBooleanOperator

        private object ExecuteBooleanOperator(IConvertible left, IConvertible right, CodeBinaryOperatorType op)
        {
            bool flag = false;
            switch (op)
            {
                case CodeBinaryOperatorType.IdentityInequality:
                    return (left != right);

                case CodeBinaryOperatorType.IdentityEquality:
                    return (left == right);

                case CodeBinaryOperatorType.ValueEquality:
                    return left.Equals(right);

                case CodeBinaryOperatorType.BitwiseOr:
                case CodeBinaryOperatorType.BitwiseAnd:
                case CodeBinaryOperatorType.LessThan:
                case CodeBinaryOperatorType.LessThanOrEqual:
                case CodeBinaryOperatorType.GreaterThan:
                case CodeBinaryOperatorType.GreaterThanOrEqual:
                    return flag;

                case CodeBinaryOperatorType.BooleanOr:
                    return (left.ToBoolean(null) || right.ToBoolean(null));

                case CodeBinaryOperatorType.BooleanAnd:
                    return (left.ToBoolean(null) && right.ToBoolean(null));
            }
            return flag;
        }
开发者ID:Reegenerator，项目名称:Sample-CustomizeDatasetCS，代码行数:30，代码来源:CodeDomSerializerBase.cs


注：本文中的IConvertible.ToBoolean方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。