C# IEdmPrimitiveTypeReference.IsDecimal方法代码示例

        /// <summary>
        /// Reads a primitive value.
        /// </summary>
        /// <param name="insideJsonObjectValue">true if the reader is positioned on the first property of the value which is a JSON Object 
        ///     (or the second property if the first one was odata.type).</param>
        /// <param name="expectedValueTypeReference">The expected type reference of the value, or null if none is available.</param>
        /// <param name="validateNullValue">true to validate null values; otherwise false.</param>
        /// <param name="propertyName">The name of the property whose value is being read, if applicable (used for error reporting).</param>
        /// <returns>The value of the primitive value.</returns>
        /// <remarks>
        /// Pre-Condition:  insideJsonObjectValue == false -> none - Fails if the current node is not a JsonNodeType.PrimitiveValue
        ///                 insideJsonObjectValue == true -> JsonNodeType.Property or JsonNodeType.EndObject - the first property of the value object,
        ///                     or the second property if first was odata.type, or the end-object.
        /// Post-Condition: almost anything - the node after the primitive value.
        /// </remarks>
        private object ReadPrimitiveValue(bool insideJsonObjectValue, IEdmPrimitiveTypeReference expectedValueTypeReference, bool validateNullValue, string propertyName)
        {
            object result;

            if (expectedValueTypeReference != null && expectedValueTypeReference.IsSpatial())
            {
                result = ODataJsonReaderCoreUtils.ReadSpatialValue(
                    this.JsonReader,
                    insideJsonObjectValue,
                    this.JsonLightInputContext,
                    expectedValueTypeReference,
                    validateNullValue,
                    this.recursionDepth,
                    propertyName);
            }
            else
            {
                if (insideJsonObjectValue)
                {
                    // We manually throw JSON exception here to get a nicer error message (we expect primitive value and got object).
                    // Otherwise the ReadPrimitiveValue would fail with something like "expected primitive value but found property/end object" which is rather confusing.
                    throw new ODataException(ODataErrorStrings.JsonReaderExtensions_UnexpectedNodeDetectedWithPropertyName(JsonNodeType.PrimitiveValue, JsonNodeType.StartObject, propertyName));
                }

                result = this.JsonReader.ReadPrimitiveValue();

                if (expectedValueTypeReference != null)
                {
                    if ((expectedValueTypeReference.IsDecimal() || expectedValueTypeReference.IsInt64())
                        && result != null)
                    {
                        if ((result is string) ^ this.JsonReader.IsIeee754Compatible)
                        {
                            throw new ODataException(ODataErrorStrings.ODataJsonReaderUtils_ConflictBetweenInputFormatAndParameter(expectedValueTypeReference.FullName()));
                        }
                    }

                    result = ODataJsonLightReaderUtils.ConvertValue(
                        result,
                        expectedValueTypeReference,
                        this.MessageReaderSettings,
                        validateNullValue,
                        propertyName,
                        this.Model.GetPayloadValueConverter());
                }
                else
                {
                    if (result is Decimal)
                    {
                        // convert decimal back to double to follow legacy logic when target type is not specified and IEEE754Compatible=false.
                        // we may lose precision for some range of int64 and decimal.
                        return Convert.ToDouble((Decimal)result);
                    }
                }
            }

            return result;
        }