c#.net将对象序列化,反序列化json

using System;
using System.Collections.Generic;
using System.Text;

namespace System.Web.Script.Serialization
{
// 摘要:
// Provides serialization and deserialization functionality for AJAX-enabled
// applications.
public class JavaScriptSerializer
{
// 摘要:
// Initializes a new instance of the System.Web.Script.Serialization.JavaScriptSerializer
// class that has no type resolver.
public JavaScriptSerializer();
//
// 摘要:
// Initializes a new instance of the System.Web.Script.Serialization.JavaScriptSerializer
// class that has a custom type resolver.
//
// 参数:
// resolver:
// The custom type-resolver object.
public JavaScriptSerializer(JavaScriptTypeResolver resolver);

// 摘要:
// Gets or sets the maximum length of JSON strings that are accepted by the
// System.Web.Script.Serialization.JavaScriptSerializer class.
//
// 返回结果:
// The maximum length of JSON strings. The default is 2097152 characters, which
// is equivalent to 4 MB of Unicode string data.
//
// 异常:
// System.ArgumentOutOfRangeException:
// The property is set to a value that is less than one.
public int MaxJsonLength { get; set; }
//
// 摘要:
// Gets or sets the limit for constraining the number of object levels to process.
//
// 返回结果:
// The number of object levels. The default is 100.
//
// 异常:
// System.ArgumentOutOfRangeException:
// The property is set to a value that is less than one.
public int RecursionLimit { get; set; }

// 摘要:
// Converts the given object to the specified type.
//
// 参数:
// obj:
// The object to convert.
//
// 类型参数:
// T:
// The type to which obj will be converted.
//
// 返回结果:
// The object that has been converted to the target type.
//
// 异常:
// System.InvalidOperationException:
// obj (or a nested member of obj) contains a "__type" property that indicates
// a custom type, but the type resolver that is associated with the serializer
// cannot find a corresponding managed type. -or- obj (or a nested member of
// obj) contains a “__type” property that indicates a custom type, but the result
// of deserializing the corresponding JSON string cannot be assigned to the
// expected target type. -or- obj (or a nested member of obj) contains a “__type”
// property that indicates either System.Object or a non-instantiable type (for
// example, an abstract type or an interface). -or- An attempt was made to
// convert obj to an array-like managed type, which is not supported for use
// as a deserialization target. -or- It is not possible to convert obj to T.
//
// System.ArgumentException:
// obj is a dictionary type and a non-string key value was encountered. -or-
// obj includes member definitions that are not available on type T.
public T ConvertToType<T>(object obj);
//
// 摘要:
// Converts the specified JSON string to an object of type T.
//
// 参数:
// input:
// The JSON string to be deserialized.
//
// 类型参数:
// T:
// The type of the resulting object.
//
// 返回结果:
// The deserialized object.
//
// 异常:
// System.ArgumentException:
// The input length exceeds the value of System.Web.Script.Serialization.JavaScriptSerializer.MaxJsonLength.
// -or- The recursion limit defined by System.Web.Script.Serialization.JavaScriptSerializer.RecursionLimit
// was exceeded. -or- input contains an unexpected character sequence. -or-
// input is a dictionary type and a non-string key value was encountered. -or-
// input includes member definitions that are not available on type T.
//
// System.ArgumentNullException:
// input is null.
//
// System.InvalidOperationException:
// input contains a “__type” property that indicates a custom type, but the
// type resolver associated with the serializer cannot find a corresponding
// managed type. -or- input contains a “__type” property that indicates a custom
// type, but the result of deserializing the corresponding JSON string cannot
// be assigned to the expected target type. -or- input contains a “__type” property
// that indicates either System.Object or a non-instantiable type (for example,
// an abstract types or an interface). -or- An attempt was made to convert a
// JSON array to an array-like managed type that is not supported for use as
// a JSON deserialization target. -or- It is not possible to convert input to
// T.
public T Deserialize<T>(string input);
//
// 摘要:
// Converts the specified JSON string to an object graph.
//
// 参数:
// input:
// The JSON string to be deserialized.
//
// 返回结果:
// The deserialized object.
//
// 异常:
// System.ArgumentNullException:
// input is null.
//
// System.ArgumentException:
// The input length exceeds the value of System.Web.Script.Serialization.JavaScriptSerializer.MaxJsonLength.
// -or- The recursion limit defined by System.Web.Script.Serialization.JavaScriptSerializer.RecursionLimit
// was exceeded. -or- input contains an unexpected character sequence. -or-
// input is a dictionary type and a non-string key value was encountered. -or-
// input includes member definitions that are not available on the target type.
//
// System.InvalidOperationException:
// input contains a “__type” property that indicates a custom type, but the
// type resolver that is currently associated with the serializer cannot find
// a corresponding managed type. -or- input contains a “__type” property that
// indicates a custom type, but the result of deserializing the corresponding
// JSON string cannot be assigned to the expected target type. -or- input contains
// a “__type” property that indicates either System.Object or a non-instantiable
// type (for example, an abstract type or an interface). -or- An attempt was
// made to convert a JSON array to an array-like managed type that is not supported
// for use as a JSON deserialization target. -or- It is not possible to convert
// input to the target type.
public object DeserializeObject(string input);
//
// 摘要:
// Registers a custom converter with the System.Web.Script.Serialization.JavaScriptSerializer
// instance.
//
// 参数:
// converters:
// An array that contains the custom converters to be registered.
//
// 异常:
// System.ArgumentNullException:
// converters is null.
public void RegisterConverters(IEnumerable<JavaScriptConverter> converters);
//
// 摘要:
// Converts an object to a JSON string.
//
// 参数:
// obj:
// The object to serialize.
//
// 返回结果:
// The serialized JSON string.
//
// 异常:
// System.InvalidOperationException:
// The resulting JSON string exceeds the value of System.Web.Script.Serialization.JavaScriptSerializer.MaxJsonLength.
// -or- obj contains a circular reference. A circular reference occurs when
// a child object has a reference to a parent object, and the parent object
// has a reference to the child object.
//
// System.ArgumentException:
// The recursion limit defined by System.Web.Script.Serialization.JavaScriptSerializer.RecursionLimit
// was exceeded.
public string Serialize(object obj);
//
// 摘要:
// Serializes an object and writes the resulting JSON string to the specified
// System.Text.StringBuilder object.
//
// 参数:
// obj:
// The object to serialize.
//
// output:
// The System.Text.StringBuilder object that is used to write the JSON string.
//
// 异常:
// System.InvalidOperationException:
// The resulting JSON string exceeds the value of System.Web.Script.Serialization.JavaScriptSerializer.MaxJsonLength.
// -or- obj contains a circular reference. A circular reference occurs when
// a child object has a reference to a parent object, and the parent object
// has a reference to the child object.
//
// System.ArgumentException:
// The recursion limit defined by System.Web.Script.Serialization.JavaScriptSerializer.RecursionLimit
// was exceeded.
//
// System.ArgumentNullException:
// output is null.
public void Serialize(object obj, StringBuilder output);
}
}

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