C# IConvertible.ToDouble方法代码示例

本文整理汇总了C#中IConvertible.ToDouble方法的典型用法代码示例。如果您正苦于以下问题：C# IConvertible.ToDouble方法的具体用法？C# IConvertible.ToDouble怎么用？C# IConvertible.ToDouble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.ToDouble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: DefaultToType

        internal static Object DefaultToType(IConvertible value, Type targetType, IFormatProvider provider) {
            Contract.Requires(value != null, "[Convert.DefaultToType]value!=null");
            if (targetType==null) {
                throw new ArgumentNullException("targetType");
            }
            Contract.EndContractBlock();

            RuntimeType rtTargetType = targetType as RuntimeType;

            if (rtTargetType != null)
            {
                if (value.GetType() == targetType)
                {
                    return value;
                }

                if (rtTargetType == ConvertTypes[(int)TypeCode.Boolean])
                    return value.ToBoolean(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.Char])
                    return value.ToChar(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.SByte])
                    return value.ToSByte(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.Byte])
                    return value.ToByte(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.Int16])
                    return value.ToInt16(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.UInt16])
                    return value.ToUInt16(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.Int32])
                    return value.ToInt32(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.UInt32])
                    return value.ToUInt32(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.Int64])
                    return value.ToInt64(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.UInt64])
                    return value.ToUInt64(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.Single])
                    return value.ToSingle(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.Double])
                    return value.ToDouble(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.Decimal])
                    return value.ToDecimal(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.DateTime])
                    return value.ToDateTime(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.String])
                    return value.ToString(provider);
                if (rtTargetType == ConvertTypes[(int)TypeCode.Object])
                    return (Object)value;
                //  Need to special case Enum because typecode will be underlying type, e.g. Int32
                if (rtTargetType == EnumType)
                    return (Enum)value;
                if (rtTargetType == ConvertTypes[(int)TypeCode.DBNull])
                    throw new InvalidCastException(Environment.GetResourceString("InvalidCast_DBNull"));
                if (rtTargetType == ConvertTypes[(int)TypeCode.Empty])
                    throw new InvalidCastException(Environment.GetResourceString("InvalidCast_Empty"));
            }

            throw new InvalidCastException(Environment.GetResourceString("InvalidCast_FromTo", value.GetType().FullName, targetType.FullName));
        }

开发者ID:destinyclown，项目名称:coreclr，代码行数:59，代码来源:Convert.cs

示例2: DivString

 private static object DivString(IConvertible conv1, TypeCode tc1, IConvertible conv2, TypeCode tc2)
 {
     double num;
     double num2;
     if (tc1 == TypeCode.String)
     {
         num = DoubleType.FromString(conv1.ToString(null));
     }
     else if (tc1 == TypeCode.Boolean)
     {
         num = ToVBBool(conv1);
     }
     else
     {
         num = conv1.ToDouble(null);
     }
     if (tc2 == TypeCode.String)
     {
         num2 = DoubleType.FromString(conv2.ToString(null));
     }
     else if (tc2 == TypeCode.Boolean)
     {
         num2 = ToVBBool(conv2);
     }
     else
     {
         num2 = conv2.ToDouble(null);
     }
     return (num / num2);
 }

开发者ID:pritesh-mandowara-sp，项目名称:DecompliedDotNetLibraries，代码行数:30，代码来源:ObjectType.cs

示例3: 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4: 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5: ToRaw

 protected override ulong ToRaw(IConvertible value)
 {
     double tmp = value.ToDouble(null);
     return *(ulong*)&tmp;
 }

开发者ID:GridProtectionAlliance，项目名称:openHistorian，代码行数:5，代码来源:MetadataBase.cs

示例6: DoAddOvf

 public static Literal DoAddOvf(IConvertible ic1, IConvertible ic2, TypeCode code1, TypeCode code2, BinaryExpression binaryExpression){
   TypeNode type = SystemTypes.Object;
   object val = null;
   checked{switch(code1){
     case TypeCode.SByte:
     case TypeCode.Int16:
     case TypeCode.Int32:
       int i = ic1.ToInt32(null);
       switch(code2){
         case TypeCode.SByte:
         case TypeCode.Int16:
         case TypeCode.Int32: 
         case TypeCode.Byte:
         case TypeCode.Char:
         case TypeCode.UInt16:
           val = i + ic2.ToInt32(null); 
           type = SystemTypes.Int32;
           break;
         case TypeCode.Int64: 
         case TypeCode.UInt32: 
         case TypeCode.UInt64: 
           val = i + ic2.ToInt64(null); 
           type = SystemTypes.Int64;
           break;
         case TypeCode.Single: 
           val = i + ic2.ToSingle(null); 
           type = SystemTypes.Single;
           break;
         case TypeCode.Double: 
           val = i + ic2.ToDouble(null); 
           type = SystemTypes.Double;
           break;
         case TypeCode.Decimal:
           val = i + ic2.ToDecimal(null);
           type = SystemTypes.Decimal;
           break;
         default: return null;
       }
       break;
     case TypeCode.Byte:
     case TypeCode.UInt16:
       ushort us = ic1.ToUInt16(null);
       switch(code2){
         case TypeCode.SByte:
         case TypeCode.Int16:
         case TypeCode.Int32: 
           val = us + ic2.ToInt32(null); 
           type = SystemTypes.Int32;
           break;
         case TypeCode.Byte:
         case TypeCode.UInt16:
         case TypeCode.Char:
         case TypeCode.UInt32: 
           val = us + ic2.ToUInt32(null); 
           type = SystemTypes.UInt32;
           break;
         case TypeCode.Int64: 
           val = us + ic2.ToInt64(null); 
           type = SystemTypes.Int64;
           break;
         case TypeCode.UInt64: 
           val = us + ic2.ToUInt64(null); 
           type = SystemTypes.UInt64;
           break;
         case TypeCode.Single: 
           val = us + ic2.ToSingle(null); 
           type = SystemTypes.Single;
           break;
         case TypeCode.Double: 
           val = us + ic2.ToDouble(null); 
           type = SystemTypes.Double;
           break;
         case TypeCode.Decimal:
           val = us + ic2.ToDecimal(null);
           type = SystemTypes.Decimal;
           break;
         default: return null;
       }
       break;
     case TypeCode.UInt32:
       uint ui = ic1.ToUInt32(null);
       switch(code2){
         case TypeCode.SByte:
         case TypeCode.Int16:
         case TypeCode.Int32: 
         case TypeCode.Int64: 
           val = ui + ic2.ToInt64(null); 
           type = SystemTypes.Int64;
           break;
         case TypeCode.Byte:
         case TypeCode.UInt16:
         case TypeCode.Char:
         case TypeCode.UInt32: 
           val = ui + ic2.ToUInt32(null); 
           type = SystemTypes.UInt32;
           break;
         case TypeCode.UInt64: 
           val = ui + ic2.ToUInt64(null); 
           type = SystemTypes.UInt64;
           break;
//.........这里部分代码省略.........

开发者ID:tapicer，项目名称:resource-contracts-.net，代码行数:101，代码来源:Evaluator.cs

示例7: 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8: JScriptStrictEquals

 internal static bool JScriptStrictEquals(Object v1, Object v2, IConvertible ic1, IConvertible ic2, TypeCode t1, TypeCode t2, bool checkForDebuggerObjects){
   switch (t1){
     case TypeCode.Empty: return t2 == TypeCode.Empty;
     case TypeCode.Object:
       if (v1 == v2) return true;
       if (v1 is Missing || v1 is System.Reflection.Missing) v1 = null;
       if (v1 == v2) return true;
       if (v2 is Missing || v2 is System.Reflection.Missing) v2 = null;
       return v1 == v2;
     case TypeCode.DBNull: return t2 == TypeCode.DBNull;
     case TypeCode.Boolean: return t2 == TypeCode.Boolean && 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 ch == ic2.ToDouble(null);
         case TypeCode.Decimal: return ((Decimal)(int)ch) == ic2.ToDecimal(null);
         case TypeCode.String:
           String str = ic2.ToString(null);
           return str.Length == 1 && ch == str[0];
       }
       return false;
     
     case TypeCode.SByte:
       SByte sb1 = ic1.ToSByte(null);
       switch (t2){
         case TypeCode.Char: return sb1 == 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 sb1 == ic2.ToInt64(null);
         case TypeCode.UInt64: return sb1 >= 0 && ((UInt64)sb1) == ic2.ToUInt64(null);
         case TypeCode.Single: return sb1 == ic2.ToSingle(null);
         case TypeCode.Double: return sb1 == ic2.ToDouble(null);
         case TypeCode.Decimal: return ((Decimal)sb1) == ic2.ToDecimal(null);
       }
       return false;
       
     case TypeCode.Byte:
       Byte b1 = ic1.ToByte(null);
       switch (t2){
         case TypeCode.Char: return b1 == 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 b1 == ic2.ToInt64(null);
         case TypeCode.UInt64: return b1 == ic2.ToUInt64(null);
         case TypeCode.Single: return b1 == ic2.ToSingle(null);
         case TypeCode.Double: return b1 == ic2.ToDouble(null);
         case TypeCode.Decimal: return ((Decimal)b1) == ic2.ToDecimal(null);
       }
       return false;
       
     case TypeCode.Int16:
       Int16 s1 = ic1.ToInt16(null);
       switch (t2){
         case TypeCode.Char: return s1 == 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 s1 == ic2.ToInt64(null);
         case TypeCode.UInt64: return s1 >= 0 && ((UInt64)s1) == ic2.ToUInt64(null);
         case TypeCode.Single: return s1 == ic2.ToSingle(null);
         case TypeCode.Double: return s1 == ic2.ToDouble(null);
         case TypeCode.Decimal: return ((Decimal)s1) == ic2.ToDecimal(null);
      }
       return false;
       
     case TypeCode.UInt16:
       UInt16 us1 = ic1.ToUInt16(null);
       switch (t2){
         case TypeCode.Char: return us1 == 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 us1 == ic2.ToInt64(null);
         case TypeCode.UInt64: return us1 == ic2.ToUInt64(null);
         case TypeCode.Single: return us1 == ic2.ToSingle(null);
//.........这里部分代码省略.........

开发者ID:gbarnett，项目名称:shared-source-cli-2.0，代码行数:101，代码来源:strictequality.cs

示例9: EmitConstant

        private void EmitConstant(IConvertible ic)
        {
            this.StackSize++;
              TypeCode tc = ic.GetTypeCode();
              switch (tc) {
            case TypeCode.Boolean:
            case TypeCode.SByte:
            case TypeCode.Byte:
            case TypeCode.Char:
            case TypeCode.Int16:
            case TypeCode.UInt16:
            case TypeCode.Int32:
            case TypeCode.UInt32:
            case TypeCode.Int64:
              long n = ic.ToInt64(null);
              switch (n) {
            case -1: this.generator.Emit(OperationCode.Ldc_I4_M1); break;
            case 0: this.generator.Emit(OperationCode.Ldc_I4_0); break;
            case 1: this.generator.Emit(OperationCode.Ldc_I4_1); break;
            case 2: this.generator.Emit(OperationCode.Ldc_I4_2); break;
            case 3: this.generator.Emit(OperationCode.Ldc_I4_3); break;
            case 4: this.generator.Emit(OperationCode.Ldc_I4_4); break;
            case 5: this.generator.Emit(OperationCode.Ldc_I4_5); break;
            case 6: this.generator.Emit(OperationCode.Ldc_I4_6); break;
            case 7: this.generator.Emit(OperationCode.Ldc_I4_7); break;
            case 8: this.generator.Emit(OperationCode.Ldc_I4_8); break;
            default:
              if (sbyte.MinValue <= n && n <= sbyte.MaxValue) {
                this.generator.Emit(OperationCode.Ldc_I4_S, (sbyte)n);
              } else if (int.MinValue <= n && n <= int.MaxValue ||
                n <= uint.MaxValue && (tc == TypeCode.Char || tc == TypeCode.UInt16 || tc == TypeCode.UInt32)) {
                if (n == uint.MaxValue)
                  this.generator.Emit(OperationCode.Ldc_I4_M1);
                else
                  this.generator.Emit(OperationCode.Ldc_I4, (int)n);
              } else {
                this.generator.Emit(OperationCode.Ldc_I8, n);
                tc = TypeCode.Empty; //Suppress conversion to long
              }
              break;
              }
              if (tc == TypeCode.Int64)
            this.generator.Emit(OperationCode.Conv_I8);
              return;

            case TypeCode.UInt64:
              this.generator.Emit(OperationCode.Ldc_I8, (long)ic.ToUInt64(null));
              return;

            case TypeCode.Single:
              this.generator.Emit(OperationCode.Ldc_R4, ic.ToSingle(null));
              return;

            case TypeCode.Double:
              this.generator.Emit(OperationCode.Ldc_R8, ic.ToDouble(null));
              return;

            case TypeCode.String:
              this.generator.Emit(OperationCode.Ldstr, ic.ToString(null));
              return;

            case TypeCode.Decimal:
              var bits = Decimal.GetBits(ic.ToDecimal(null));
              this.generator.Emit(OperationCode.Ldc_I4, bits[0]);
              this.generator.Emit(OperationCode.Ldc_I4, bits[1]); this.StackSize++;
              this.generator.Emit(OperationCode.Ldc_I4, bits[2]); this.StackSize++;
              if (bits[3] >= 0)
            this.generator.Emit(OperationCode.Ldc_I4_0);
              else
            this.generator.Emit(OperationCode.Ldc_I4_1);
              this.StackSize++;
              int scale = (bits[3]&0x7FFFFF)>>16;
              if (scale > 28) scale = 28;
              this.generator.Emit(OperationCode.Ldc_I4_S, scale); this.StackSize++;
              this.generator.Emit(OperationCode.Newobj, this.DecimalConstructor);
              this.StackSize -= 4;
              return;
              }
        }

开发者ID:riverar，项目名称:devtools，代码行数:79，代码来源:Visitor.cs

示例10: 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11: EncodeConvertible

        protected void EncodeConvertible(IConvertible value, Stream output)
        {
            output.WriteByte((byte)value.GetTypeCode());
            byte[] result;
            switch (value.GetTypeCode())
            {
            // the following encode directly on the stream
            case TypeCode.Boolean: output.WriteByte((byte)((bool)value ? 1 : 0)); return;
            case TypeCode.Byte: output.WriteByte(value.ToByte(null)); return;
            case TypeCode.SByte: output.WriteByte((byte)(value.ToSByte(null) + 128)); return;

            case TypeCode.Object:
                formatter.Serialize(output, value);
                return;

            case TypeCode.String: {
                long lengthPosition = output.Position;
                output.Write(new byte[4], 0, 4);
                StreamWriter w = new StreamWriter(output, Encoding.UTF8);
                w.Write((string)value);
                w.Flush();
                long savedPosition = output.Position;
                uint payloadLength = (uint)(output.Position - lengthPosition - 4);
                output.Position = lengthPosition;
                output.Write(DataConverter.Converter.GetBytes(payloadLength), 0, 4);
                output.Position = savedPosition;
                return;
            }

            // the following obtain byte arrays which are dumped below
            case TypeCode.Char: result = DataConverter.Converter.GetBytes(value.ToChar(null)); break;
            case TypeCode.Single: result = DataConverter.Converter.GetBytes(value.ToSingle(null)); break;
            case TypeCode.Double: result = DataConverter.Converter.GetBytes(value.ToDouble(null)); break;
            case TypeCode.Int16: result = DataConverter.Converter.GetBytes(value.ToInt16(null)); break;
            case TypeCode.Int32: result = DataConverter.Converter.GetBytes(value.ToInt32(null)); break;
            case TypeCode.Int64: result = DataConverter.Converter.GetBytes(value.ToInt64(null)); break;
            case TypeCode.UInt16: result = DataConverter.Converter.GetBytes(value.ToUInt16(null)); break;
            case TypeCode.UInt32: result = DataConverter.Converter.GetBytes(value.ToUInt32(null)); break;
            case TypeCode.UInt64: result = DataConverter.Converter.GetBytes(value.ToUInt64(null)); break;
            case TypeCode.DateTime: result = DataConverter.Converter.GetBytes(((DateTime)value).ToBinary()); break;

            default: throw new MarshallingException("Unhandled form of IConvertible: " + value.GetTypeCode());
            }
            output.Write(result, 0, result.Length);
        }

开发者ID:pichiliani，项目名称:CoMusic，代码行数:45，代码来源:Marshalling.cs

示例12: 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13: 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14: 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15: 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

注：本文中的IConvertible.ToDouble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。