456 lines
20 KiB
C#
456 lines
20 KiB
C#
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#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Runtime.Serialization.Formatters;
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using LC.Newtonsoft.Json.Serialization;
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using System.Runtime.Serialization;
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using System.Diagnostics;
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namespace LC.Newtonsoft.Json
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{
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/// <summary>
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/// Specifies the settings on a <see cref="JsonSerializer"/> object.
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/// </summary>
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public class JsonSerializerSettings
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{
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internal const ReferenceLoopHandling DefaultReferenceLoopHandling = ReferenceLoopHandling.Error;
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internal const MissingMemberHandling DefaultMissingMemberHandling = MissingMemberHandling.Ignore;
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internal const NullValueHandling DefaultNullValueHandling = NullValueHandling.Include;
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internal const DefaultValueHandling DefaultDefaultValueHandling = DefaultValueHandling.Include;
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internal const ObjectCreationHandling DefaultObjectCreationHandling = ObjectCreationHandling.Auto;
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internal const PreserveReferencesHandling DefaultPreserveReferencesHandling = PreserveReferencesHandling.None;
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internal const ConstructorHandling DefaultConstructorHandling = ConstructorHandling.Default;
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internal const TypeNameHandling DefaultTypeNameHandling = TypeNameHandling.None;
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internal const MetadataPropertyHandling DefaultMetadataPropertyHandling = MetadataPropertyHandling.Default;
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internal static readonly StreamingContext DefaultContext;
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internal const Formatting DefaultFormatting = Formatting.None;
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internal const DateFormatHandling DefaultDateFormatHandling = DateFormatHandling.IsoDateFormat;
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internal const DateTimeZoneHandling DefaultDateTimeZoneHandling = DateTimeZoneHandling.RoundtripKind;
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internal const DateParseHandling DefaultDateParseHandling = DateParseHandling.DateTime;
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internal const FloatParseHandling DefaultFloatParseHandling = FloatParseHandling.Double;
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internal const FloatFormatHandling DefaultFloatFormatHandling = FloatFormatHandling.String;
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internal const StringEscapeHandling DefaultStringEscapeHandling = StringEscapeHandling.Default;
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internal const TypeNameAssemblyFormatHandling DefaultTypeNameAssemblyFormatHandling = TypeNameAssemblyFormatHandling.Simple;
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internal static readonly CultureInfo DefaultCulture;
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internal const bool DefaultCheckAdditionalContent = false;
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internal const string DefaultDateFormatString = @"yyyy'-'MM'-'dd'T'HH':'mm':'ss.FFFFFFFK";
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internal const int DefaultMaxDepth = 64;
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internal Formatting? _formatting;
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internal DateFormatHandling? _dateFormatHandling;
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internal DateTimeZoneHandling? _dateTimeZoneHandling;
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internal DateParseHandling? _dateParseHandling;
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internal FloatFormatHandling? _floatFormatHandling;
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internal FloatParseHandling? _floatParseHandling;
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internal StringEscapeHandling? _stringEscapeHandling;
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internal CultureInfo? _culture;
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internal bool? _checkAdditionalContent;
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internal int? _maxDepth;
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internal bool _maxDepthSet;
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internal string? _dateFormatString;
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internal bool _dateFormatStringSet;
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internal TypeNameAssemblyFormatHandling? _typeNameAssemblyFormatHandling;
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internal DefaultValueHandling? _defaultValueHandling;
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internal PreserveReferencesHandling? _preserveReferencesHandling;
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internal NullValueHandling? _nullValueHandling;
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internal ObjectCreationHandling? _objectCreationHandling;
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internal MissingMemberHandling? _missingMemberHandling;
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internal ReferenceLoopHandling? _referenceLoopHandling;
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internal StreamingContext? _context;
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internal ConstructorHandling? _constructorHandling;
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internal TypeNameHandling? _typeNameHandling;
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internal MetadataPropertyHandling? _metadataPropertyHandling;
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/// <summary>
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/// Gets or sets how reference loops (e.g. a class referencing itself) are handled.
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/// The default value is <see cref="Json.ReferenceLoopHandling.Error" />.
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/// </summary>
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/// <value>Reference loop handling.</value>
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public ReferenceLoopHandling ReferenceLoopHandling
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{
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get => _referenceLoopHandling ?? DefaultReferenceLoopHandling;
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set => _referenceLoopHandling = value;
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}
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/// <summary>
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/// Gets or sets how missing members (e.g. JSON contains a property that isn't a member on the object) are handled during deserialization.
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/// The default value is <see cref="Json.MissingMemberHandling.Ignore" />.
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/// </summary>
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/// <value>Missing member handling.</value>
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public MissingMemberHandling MissingMemberHandling
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{
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get => _missingMemberHandling ?? DefaultMissingMemberHandling;
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set => _missingMemberHandling = value;
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}
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/// <summary>
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/// Gets or sets how objects are created during deserialization.
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/// The default value is <see cref="Json.ObjectCreationHandling.Auto" />.
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/// </summary>
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/// <value>The object creation handling.</value>
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public ObjectCreationHandling ObjectCreationHandling
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{
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get => _objectCreationHandling ?? DefaultObjectCreationHandling;
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set => _objectCreationHandling = value;
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}
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/// <summary>
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/// Gets or sets how null values are handled during serialization and deserialization.
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/// The default value is <see cref="Json.NullValueHandling.Include" />.
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/// </summary>
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/// <value>Null value handling.</value>
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public NullValueHandling NullValueHandling
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{
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get => _nullValueHandling ?? DefaultNullValueHandling;
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set => _nullValueHandling = value;
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}
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/// <summary>
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/// Gets or sets how default values are handled during serialization and deserialization.
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/// The default value is <see cref="Json.DefaultValueHandling.Include" />.
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/// </summary>
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/// <value>The default value handling.</value>
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public DefaultValueHandling DefaultValueHandling
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{
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get => _defaultValueHandling ?? DefaultDefaultValueHandling;
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set => _defaultValueHandling = value;
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}
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/// <summary>
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/// Gets or sets a <see cref="JsonConverter"/> collection that will be used during serialization.
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/// </summary>
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/// <value>The converters.</value>
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public IList<JsonConverter> Converters { get; set; }
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/// <summary>
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/// Gets or sets how object references are preserved by the serializer.
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/// The default value is <see cref="Json.PreserveReferencesHandling.None" />.
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/// </summary>
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/// <value>The preserve references handling.</value>
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public PreserveReferencesHandling PreserveReferencesHandling
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{
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get => _preserveReferencesHandling ?? DefaultPreserveReferencesHandling;
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set => _preserveReferencesHandling = value;
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}
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/// <summary>
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/// Gets or sets how type name writing and reading is handled by the serializer.
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/// The default value is <see cref="Json.TypeNameHandling.None" />.
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/// </summary>
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/// <remarks>
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/// <see cref="JsonSerializerSettings.TypeNameHandling"/> should be used with caution when your application deserializes JSON from an external source.
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/// Incoming types should be validated with a custom <see cref="JsonSerializerSettings.SerializationBinder"/>
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/// when deserializing with a value other than <see cref="Json.TypeNameHandling.None"/>.
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/// </remarks>
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/// <value>The type name handling.</value>
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public TypeNameHandling TypeNameHandling
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{
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get => _typeNameHandling ?? DefaultTypeNameHandling;
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set => _typeNameHandling = value;
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}
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/// <summary>
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/// Gets or sets how metadata properties are used during deserialization.
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/// The default value is <see cref="Json.MetadataPropertyHandling.Default" />.
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/// </summary>
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/// <value>The metadata properties handling.</value>
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public MetadataPropertyHandling MetadataPropertyHandling
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{
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get => _metadataPropertyHandling ?? DefaultMetadataPropertyHandling;
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set => _metadataPropertyHandling = value;
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}
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/// <summary>
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/// Gets or sets how a type name assembly is written and resolved by the serializer.
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/// The default value is <see cref="FormatterAssemblyStyle.Simple" />.
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/// </summary>
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/// <value>The type name assembly format.</value>
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[Obsolete("TypeNameAssemblyFormat is obsolete. Use TypeNameAssemblyFormatHandling instead.")]
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public FormatterAssemblyStyle TypeNameAssemblyFormat
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{
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get => (FormatterAssemblyStyle)TypeNameAssemblyFormatHandling;
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set => TypeNameAssemblyFormatHandling = (TypeNameAssemblyFormatHandling)value;
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}
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/// <summary>
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/// Gets or sets how a type name assembly is written and resolved by the serializer.
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/// The default value is <see cref="Json.TypeNameAssemblyFormatHandling.Simple" />.
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/// </summary>
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/// <value>The type name assembly format.</value>
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public TypeNameAssemblyFormatHandling TypeNameAssemblyFormatHandling
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{
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get => _typeNameAssemblyFormatHandling ?? DefaultTypeNameAssemblyFormatHandling;
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set => _typeNameAssemblyFormatHandling = value;
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}
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/// <summary>
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/// Gets or sets how constructors are used during deserialization.
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/// The default value is <see cref="Json.ConstructorHandling.Default" />.
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/// </summary>
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/// <value>The constructor handling.</value>
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public ConstructorHandling ConstructorHandling
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{
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get => _constructorHandling ?? DefaultConstructorHandling;
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set => _constructorHandling = value;
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}
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/// <summary>
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/// Gets or sets the contract resolver used by the serializer when
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/// serializing .NET objects to JSON and vice versa.
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/// </summary>
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/// <value>The contract resolver.</value>
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public IContractResolver? ContractResolver { get; set; }
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/// <summary>
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/// Gets or sets the equality comparer used by the serializer when comparing references.
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/// </summary>
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/// <value>The equality comparer.</value>
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public IEqualityComparer? EqualityComparer { get; set; }
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/// <summary>
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/// Gets or sets the <see cref="IReferenceResolver"/> used by the serializer when resolving references.
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/// </summary>
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/// <value>The reference resolver.</value>
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[Obsolete("ReferenceResolver property is obsolete. Use the ReferenceResolverProvider property to set the IReferenceResolver: settings.ReferenceResolverProvider = () => resolver")]
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public IReferenceResolver? ReferenceResolver
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{
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get => ReferenceResolverProvider?.Invoke();
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set
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{
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ReferenceResolverProvider = (value != null)
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? () => value
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: (Func<IReferenceResolver?>?)null;
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}
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}
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/// <summary>
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/// Gets or sets a function that creates the <see cref="IReferenceResolver"/> used by the serializer when resolving references.
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/// </summary>
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/// <value>A function that creates the <see cref="IReferenceResolver"/> used by the serializer when resolving references.</value>
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public Func<IReferenceResolver?>? ReferenceResolverProvider { get; set; }
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/// <summary>
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/// Gets or sets the <see cref="ITraceWriter"/> used by the serializer when writing trace messages.
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/// </summary>
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/// <value>The trace writer.</value>
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public ITraceWriter? TraceWriter { get; set; }
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/// <summary>
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/// Gets or sets the <see cref="SerializationBinder"/> used by the serializer when resolving type names.
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/// </summary>
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/// <value>The binder.</value>
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[Obsolete("Binder is obsolete. Use SerializationBinder instead.")]
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public SerializationBinder? Binder
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{
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get
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{
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if (SerializationBinder == null)
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{
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return null;
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}
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if (SerializationBinder is SerializationBinderAdapter adapter)
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{
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return adapter.SerializationBinder;
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}
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throw new InvalidOperationException("Cannot get SerializationBinder because an ISerializationBinder was previously set.");
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}
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set => SerializationBinder = value == null ? null : new SerializationBinderAdapter(value);
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}
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/// <summary>
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/// Gets or sets the <see cref="ISerializationBinder"/> used by the serializer when resolving type names.
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/// </summary>
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/// <value>The binder.</value>
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public ISerializationBinder? SerializationBinder { get; set; }
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/// <summary>
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/// Gets or sets the error handler called during serialization and deserialization.
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/// </summary>
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/// <value>The error handler called during serialization and deserialization.</value>
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public EventHandler<ErrorEventArgs>? Error { get; set; }
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/// <summary>
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/// Gets or sets the <see cref="StreamingContext"/> used by the serializer when invoking serialization callback methods.
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/// </summary>
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/// <value>The context.</value>
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public StreamingContext Context
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{
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get => _context ?? DefaultContext;
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set => _context = value;
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}
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/// <summary>
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/// Gets or sets how <see cref="DateTime"/> and <see cref="DateTimeOffset"/> values are formatted when writing JSON text,
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/// and the expected date format when reading JSON text.
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/// The default value is <c>"yyyy'-'MM'-'dd'T'HH':'mm':'ss.FFFFFFFK"</c>.
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/// </summary>
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public string DateFormatString
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{
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get => _dateFormatString ?? DefaultDateFormatString;
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set
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{
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_dateFormatString = value;
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_dateFormatStringSet = true;
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}
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}
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/// <summary>
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/// Gets or sets the maximum depth allowed when reading JSON. Reading past this depth will throw a <see cref="JsonReaderException"/>.
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/// A null value means there is no maximum.
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/// The default value is <c>128</c>.
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/// </summary>
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public int? MaxDepth
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{
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get => _maxDepthSet ? _maxDepth : DefaultMaxDepth;
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set
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{
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if (value <= 0)
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{
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throw new ArgumentException("Value must be positive.", nameof(value));
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}
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_maxDepth = value;
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_maxDepthSet = true;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Indicates how JSON text output is formatted.
|
|||
|
|
/// The default value is <see cref="Json.Formatting.None" />.
|
|||
|
|
/// </summary>
|
|||
|
|
public Formatting Formatting
|
|||
|
|
{
|
|||
|
|
get => _formatting ?? DefaultFormatting;
|
|||
|
|
set => _formatting = value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets or sets how dates are written to JSON text.
|
|||
|
|
/// The default value is <see cref="Json.DateFormatHandling.IsoDateFormat" />.
|
|||
|
|
/// </summary>
|
|||
|
|
public DateFormatHandling DateFormatHandling
|
|||
|
|
{
|
|||
|
|
get => _dateFormatHandling ?? DefaultDateFormatHandling;
|
|||
|
|
set => _dateFormatHandling = value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets or sets how <see cref="DateTime"/> time zones are handled during serialization and deserialization.
|
|||
|
|
/// The default value is <see cref="Json.DateTimeZoneHandling.RoundtripKind" />.
|
|||
|
|
/// </summary>
|
|||
|
|
public DateTimeZoneHandling DateTimeZoneHandling
|
|||
|
|
{
|
|||
|
|
get => _dateTimeZoneHandling ?? DefaultDateTimeZoneHandling;
|
|||
|
|
set => _dateTimeZoneHandling = value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets or sets how date formatted strings, e.g. <c>"\/Date(1198908717056)\/"</c> and <c>"2012-03-21T05:40Z"</c>, are parsed when reading JSON.
|
|||
|
|
/// The default value is <see cref="Json.DateParseHandling.DateTime" />.
|
|||
|
|
/// </summary>
|
|||
|
|
public DateParseHandling DateParseHandling
|
|||
|
|
{
|
|||
|
|
get => _dateParseHandling ?? DefaultDateParseHandling;
|
|||
|
|
set => _dateParseHandling = value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets or sets how special floating point numbers, e.g. <see cref="Double.NaN"/>,
|
|||
|
|
/// <see cref="Double.PositiveInfinity"/> and <see cref="Double.NegativeInfinity"/>,
|
|||
|
|
/// are written as JSON.
|
|||
|
|
/// The default value is <see cref="Json.FloatFormatHandling.String" />.
|
|||
|
|
/// </summary>
|
|||
|
|
public FloatFormatHandling FloatFormatHandling
|
|||
|
|
{
|
|||
|
|
get => _floatFormatHandling ?? DefaultFloatFormatHandling;
|
|||
|
|
set => _floatFormatHandling = value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets or sets how floating point numbers, e.g. 1.0 and 9.9, are parsed when reading JSON text.
|
|||
|
|
/// The default value is <see cref="Json.FloatParseHandling.Double" />.
|
|||
|
|
/// </summary>
|
|||
|
|
public FloatParseHandling FloatParseHandling
|
|||
|
|
{
|
|||
|
|
get => _floatParseHandling ?? DefaultFloatParseHandling;
|
|||
|
|
set => _floatParseHandling = value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets or sets how strings are escaped when writing JSON text.
|
|||
|
|
/// The default value is <see cref="Json.StringEscapeHandling.Default" />.
|
|||
|
|
/// </summary>
|
|||
|
|
public StringEscapeHandling StringEscapeHandling
|
|||
|
|
{
|
|||
|
|
get => _stringEscapeHandling ?? DefaultStringEscapeHandling;
|
|||
|
|
set => _stringEscapeHandling = value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets or sets the culture used when reading JSON.
|
|||
|
|
/// The default value is <see cref="CultureInfo.InvariantCulture"/>.
|
|||
|
|
/// </summary>
|
|||
|
|
public CultureInfo Culture
|
|||
|
|
{
|
|||
|
|
get => _culture ?? DefaultCulture;
|
|||
|
|
set => _culture = value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets a value indicating whether there will be a check for additional content after deserializing an object.
|
|||
|
|
/// The default value is <c>false</c>.
|
|||
|
|
/// </summary>
|
|||
|
|
/// <value>
|
|||
|
|
/// <c>true</c> if there will be a check for additional content after deserializing an object; otherwise, <c>false</c>.
|
|||
|
|
/// </value>
|
|||
|
|
public bool CheckAdditionalContent
|
|||
|
|
{
|
|||
|
|
get => _checkAdditionalContent ?? DefaultCheckAdditionalContent;
|
|||
|
|
set => _checkAdditionalContent = value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static JsonSerializerSettings()
|
|||
|
|
{
|
|||
|
|
DefaultContext = new StreamingContext();
|
|||
|
|
DefaultCulture = CultureInfo.InvariantCulture;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Initializes a new instance of the <see cref="JsonSerializerSettings"/> class.
|
|||
|
|
/// </summary>
|
|||
|
|
[DebuggerStepThrough]
|
|||
|
|
public JsonSerializerSettings()
|
|||
|
|
{
|
|||
|
|
Converters = new List<JsonConverter>();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|