JavaScriptSerializer JavaScriptSerializer JavaScriptSerializer JavaScriptSerializer Class

Definição

Json.NET deve ser usado para serialização e desserialização.Json.NET should be used for serialization and deserialization. Fornece a funcionalidade de serialização e desserialização para aplicativos habilitados para AJAX.Provides serialization and deserialization functionality for AJAX-enabled applications.

public ref class JavaScriptSerializer
public class JavaScriptSerializer
type JavaScriptSerializer = class
Public Class JavaScriptSerializer
Herança
JavaScriptSerializerJavaScriptSerializerJavaScriptSerializerJavaScriptSerializer

Exemplos

O primeiro exemplo fornece uma ilustração simples de como serializar e desserializar objetos de dados.The first example provides a simple illustration of how to serialize and deserialize data objects. Ele requer uma classe chamada Person, que é mostrada abaixo.It requires a class named Person which is shown below.

using System;
using System.Collections.Generic;
using System.Web.UI;
using System.Web.Script.Serialization;

namespace ExampleApplication
{
    public partial class _Default : Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            var RegisteredUsers = new List<Person>();
            RegisteredUsers.Add(new Person() { PersonID = 1, Name = "Bryon Hetrick", Registered = true });
            RegisteredUsers.Add(new Person() { PersonID = 2, Name = "Nicole Wilcox", Registered = true });
            RegisteredUsers.Add(new Person() { PersonID = 3, Name = "Adrian Martinson", Registered = false });
            RegisteredUsers.Add(new Person() { PersonID = 4, Name = "Nora Osborn", Registered = false });

            var serializer = new JavaScriptSerializer();
            var serializedResult = serializer.Serialize(RegisteredUsers);
            // Produces string value of:
            // [
            //     {"PersonID":1,"Name":"Bryon Hetrick","Registered":true},
            //     {"PersonID":2,"Name":"Nicole Wilcox","Registered":true},
            //     {"PersonID":3,"Name":"Adrian Martinson","Registered":false},
            //     {"PersonID":4,"Name":"Nora Osborn","Registered":false}
            // ]

            var deserializedResult = serializer.Deserialize<List<Person>>(serializedResult);
            // Produces List with 4 Person objects
        }
    }
}
Imports System.Web.Script.Serialization

Public Class _Default
    Inherits Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
        Dim RegisteredUsers As New List(Of Person)()
        RegisteredUsers.Add(New Person With {.PersonID = 1, .Name = "Bryon Hetrick", .Registered = True})
        RegisteredUsers.Add(New Person With {.PersonID = 2, .Name = "Nicole Wilcox", .Registered = True})
        RegisteredUsers.Add(New Person With {.PersonID = 3, .Name = "Adrian Martinson", .Registered = False})
        RegisteredUsers.Add(New Person With {.PersonID = 4, .Name = "Nora Osborn", .Registered = False})

        Dim serializer As New JavaScriptSerializer()
        Dim serializedResult = serializer.Serialize(RegisteredUsers)
        ' Produces string value of:
        ' [
        '     {"PersonID":1,"Name":"Bryon Hetrick","Registered":true},
        '     {"PersonID":2,"Name":"Nicole Wilcox","Registered":true},
        '     {"PersonID":3,"Name":"Adrian Martinson","Registered":false},
        '     {"PersonID":4,"Name":"Nora Osborn","Registered":false}
        ' ]

        Dim deserializedResult = serializer.Deserialize(Of List(Of Person))(serializedResult)
        ' Produces List with 4 Person objects
    End Sub
End Class
namespace ExampleApplication
{
    public class Person
    {
        public int PersonID { get; set; }
        public string Name { get; set; }
        public bool Registered { get; set; }
    }
}
Public Class Person
    Public Property PersonID As Integer
    Public Property Name As String
    Public Property Registered As Boolean
End Class

O exemplo a seguir mostra um projeto mais complicado e completo que usa JavaScriptSerializer a classe para salvar e restaurar o estado de um objeto usando a serialização JSON.The next example shows a more complicated and complete project that uses the JavaScriptSerializer class to save and restore the state of an object by using JSON serialization. Esse código usa um conversor personalizado que é fornecido para a JavaScriptConverter classe.This code uses a custom converter that is provided for the JavaScriptConverter class.

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Script.Serialization" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

    JavaScriptSerializer serializer;
    protected void Page_Load(object sender, EventArgs e)
    {
        //<Snippet1>
        serializer = new JavaScriptSerializer();
        
        // Register the custom converter.
        serializer.RegisterConverters(new JavaScriptConverter[] { 
            new System.Web.Script.Serialization.CS.ListItemCollectionConverter() });
        //</Snippet1>
        this.SetFocus(TextBox1);
    }
    
    protected void saveButton_Click(object sender, EventArgs e)
    {
        // Save the current state of the ListBox control.
        SavedState.Text = serializer.Serialize(ListBox1.Items);
        recoverButton.Enabled = true;
        Message.Text = "State saved";
    }

    protected void recoverButton_Click(object sender, EventArgs e)
    {        
        //Recover the saved items of the ListBox control.
        ListItemCollection recoveredList = serializer.Deserialize<ListItemCollection>(SavedState.Text);
        ListItem[] newListItemArray = new ListItem[recoveredList.Count];
        recoveredList.CopyTo(newListItemArray, 0);
        ListBox1.Items.Clear();
        ListBox1.Items.AddRange(newListItemArray);
        Message.Text = "Last saved state recovered.";
    }

    protected void clearButton_Click(object sender, EventArgs e)
    {
        // Remove all items from the ListBox control.
        ListBox1.Items.Clear();
        Message.Text = "All items removed";
    }

    protected void ContactsGrid_SelectedIndexChanged(object sender, EventArgs e)
    {
        // Get the currently selected row using the SelectedRow property.
        GridViewRow row = ContactsGrid.SelectedRow;

        // Get the ID of item selected.
        string itemId = ContactsGrid.DataKeys[row.RowIndex].Value.ToString();                
        ListItem newItem = new ListItem(row.Cells[4].Text, itemId);
        
        // Check if the item already exists in the ListBox control.
        if (!ListBox1.Items.Contains(newItem))
        {
            // Add the item to the ListBox control.
            ListBox1.Items.Add(newItem);
            Message.Text = "Item added";
        }
        else
            Message.Text = "Item already exists";
    }

    protected void ContactsGrid_PageIndexChanged(object sender, EventArgs e)
    {
        //Reset the selected index.
        ContactsGrid.SelectedIndex = -1;
    }

    protected void searchButton_Click(object sender, EventArgs e)
    {
        //Reset indexes.
        ContactsGrid.SelectedIndex = -1;
        ContactsGrid.PageIndex = 0;
        
        //Set focus on the TextBox control.
        ScriptManager1.SetFocus(TextBox1);
    }

    protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
    {
        // Show/hide the saved state string.        
        SavedState.Visible = CheckBox1.Checked;
        StateLabel.Visible = CheckBox1.Checked;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Save/Recover state</title>
    <style type="text/css">
        body {  font: 11pt Trebuchet MS;
                font-color: #000000;
                padding-top: 72px;
                text-align: center }

        .text { font: 8pt Trebuchet MS }
    </style>
</head>
<body>    
    <form id="form1" runat="server" defaultbutton="searchButton" defaultfocus="TextBox1">
        <h3>
            <span style="text-decoration: underline">
                                    Contacts Selection</span><br />
        </h3>
        <asp:ScriptManager runat="server" ID="ScriptManager1" />
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                Type contact's first name:
                <asp:TextBox ID="TextBox1" runat="server" />
                <asp:Button ID="searchButton" runat="server" Text="Search" OnClick="searchButton_Click" />&nbsp;
                <br />
                <br />
                <table border="0" width="100%">
                    <tr>
                        <td style="width:50%" valign="top" align="center">
                            <b>Search results:</b><br />
                            <asp:GridView ID="ContactsGrid" runat="server" AutoGenerateColumns="False"
                                CellPadding="4" DataKeyNames="ContactID" DataSourceID="SqlDataSource1"
                                OnSelectedIndexChanged="ContactsGrid_SelectedIndexChanged" ForeColor="#333333" GridLines="None" AllowPaging="True" PageSize="7" OnPageIndexChanged="ContactsGrid_PageIndexChanged">
                                <Columns>
                                    <asp:CommandField ShowSelectButton="True" ButtonType="Button" />
                                    <asp:BoundField DataField="ContactID" HeaderText="ContactID" SortExpression="ContactID" Visible="False" />
                                    <asp:BoundField DataField="FirstName" HeaderText="FirstName" SortExpression="FirstName" />
                                    <asp:BoundField DataField="LastName" HeaderText="LastName" SortExpression="LastName" />
                                    <asp:BoundField DataField="EmailAddress" HeaderText="EmailAddress" SortExpression="EmailAddress" />
                                </Columns>
                                <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
                                <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
                                <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
                                <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
                                <EditRowStyle BackColor="#999999" />
                                <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
                                <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
                                <EmptyDataTemplate>No data found.</EmptyDataTemplate>
                            </asp:GridView>
                            <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:AdventureWorksConnectionString %>"
                                SelectCommand="SELECT ContactID, FirstName, LastName, EmailAddress FROM Person.Contact WHERE (UPPER(FirstName) = UPPER(@FIRSTNAME))" >
                                <SelectParameters>
                                    <asp:ControlParameter Name="FIRSTNAME" ControlId="TextBox1" Type="String" />
                                </SelectParameters>
                            </asp:SqlDataSource>
                        </td>
                        <td valign="top">
                            <b>Contacts list:</b><br />
                        <asp:ListBox ID="ListBox1" runat="server" Height="200px" Width="214px" /><br />
                        <asp:Button ID="saveButton" runat="server" Text="Save state" OnClick="saveButton_Click" ToolTip="Save the current state of the list" />
                        <asp:Button ID="recoverButton" runat="server" Text="Recover saved state" OnClick="recoverButton_Click" Enabled="false" ToolTip="Recover the last saved state" />
                        <asp:Button ID="clearButton" runat="server" Text="Clear" OnClick="clearButton_Click" ToolTip="Remove all items from the list" /><br />
                            <br />
                            <asp:CheckBox ID="CheckBox1" runat="server" Checked="True" OnCheckedChanged="CheckBox1_CheckedChanged"
                                Text="Show saved state" AutoPostBack="True" /></td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <br />
                            <br />
                            &nbsp;&nbsp;
                            <hr />
                            Message: <asp:Label ID="Message" runat="server" ForeColor="SteelBlue" />&nbsp;&nbsp;<br />
                            <asp:Label ID="StateLabel" runat="server" Text="State:"></asp:Label>
                            <asp:Label ID="SavedState" runat="server"/><br />                        
                        </td>
                    </tr>
                </table>
            </ContentTemplate>
        </asp:UpdatePanel>
        <asp:UpdateProgress ID="UpdateProgress1" runat="server">
            <ProgressTemplate>
                <asp:Image ID="Image1" runat="server" ImageUrl="..\images\spinner.gif" />&nbsp;Processing...
            </ProgressTemplate>
        </asp:UpdateProgress>
    </form>
</body>
</html>
<%@ Page Language="VB" %>
<%@ Import Namespace="System.Web.Script.Serialization" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    
    Dim serializer As JavaScriptSerializer

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
        '<Snippet1>
        serializer = New JavaScriptSerializer()
    
        ' Register the custom converter.
        serializer.RegisterConverters(New JavaScriptConverter() _
            {New System.Web.Script.Serialization.VB.ListItemCollectionConverter()})
        '</Snippet1>
    End Sub

    Protected Sub saveButton_Click(ByVal sender As Object, ByVal e As EventArgs)
        ' Save the current state of the ListBox control.
        SavedState.Text = serializer.Serialize(ListBox1.Items)
        recoverButton.Enabled = True
        Message.Text = "State saved"
    End Sub

    Protected Sub recoverButton_Click(ByVal sender As Object, ByVal e As EventArgs)
        ' Recover the saved items of the ListBox control.        
        Dim recoveredList As ListItemCollection = _
            serializer.Deserialize(Of ListItemCollection)(SavedState.Text)
        Dim newListItemArray(recoveredList.Count - 1) As ListItem
        recoveredList.CopyTo(newListItemArray, 0)
        ListBox1.Items.Clear()
        ListBox1.Items.AddRange(newListItemArray)
        Message.Text = "Last saved state recovered."
    End Sub

    Protected Sub clearButton_Click(ByVal sender As Object, ByVal e As EventArgs)
        ' Remove all items from the ListBox control.
        ListBox1.Items.Clear()
        Message.Text = "All items removed"
    End Sub

    Protected Sub ContactsGrid_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
        ' Get the currently selected row using the SelectedRow property.
        Dim row As GridViewRow = ContactsGrid.SelectedRow
    
        ' Get the ID of the item selected.
        Dim itemId As String = ContactsGrid.DataKeys(row.RowIndex).Value.ToString()
        Dim newItem As ListItem = New ListItem(row.Cells(4).Text, itemId)

        ' Check if the item already exists in the ListBox control.
        If Not ListBox1.Items.Contains(newItem) Then
            ' Add the item to the ListBox control.
            ListBox1.Items.Add(newItem)
            Message.Text = "Item added"
        Else
            Message.Text = "Item already exists"
        End If
        
    End Sub
 
    Private Function SearchItem(ByVal itemId As String) As Boolean
        Dim i As Integer
        For i = 0 To ListBox1.Items.Count - 1
            If ListBox1.Items(i).Value = itemId Then
                Return True
            End If
        Next i
        Return False

    End Function

    Protected Sub ContactsGrid_PageIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
        ContactsGrid.SelectedIndex = -1
    End Sub

    Protected Sub searchButton_Click(ByVal sender As Object, ByVal e As EventArgs)
        ContactsGrid.SelectedIndex = -1
        ContactsGrid.PageIndex = 0
        ScriptManager1.SetFocus(TextBox1)
    End Sub

    Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs)
        SavedState.Visible = CheckBox1.Checked
        StateLabel.Visible = CheckBox1.Checked
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Save/Recover state</title>
    <style type="text/css">
        body {  font: 11pt Trebuchet MS;
                font-color: #000000;
                padding-top: 72px;
                text-align: center }

        .text { font: 8pt Trebuchet MS }
    </style>
</head>
<body>    
    <form id="form1" runat="server" defaultbutton="searchButton" defaultfocus="TextBox1">
        <h3>
            <span style="text-decoration: underline">
                                    Contacts Selection</span><br />
        </h3>
        <asp:ScriptManager runat="server" ID="ScriptManager1" />
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                Type contact's first name:
                <asp:TextBox ID="TextBox1" runat="server" />
                <asp:Button ID="searchButton" runat="server" Text="Search" OnClick="searchButton_Click" />&nbsp;
                <br />
                <br />
                <table border="0" width="100%">
                    <tr>
                        <td style="width:50%" valign="top" align="center">
                            <b>Search results:</b><br />
                            <asp:GridView ID="ContactsGrid" runat="server" AutoGenerateColumns="False"
                                CellPadding="4" DataKeyNames="ContactID" DataSourceID="SqlDataSource1"
                                OnSelectedIndexChanged="ContactsGrid_SelectedIndexChanged" ForeColor="#333333" GridLines="None" AllowPaging="True" PageSize="7" OnPageIndexChanged="ContactsGrid_PageIndexChanged">
                                <Columns>
                                    <asp:CommandField ShowSelectButton="True" ButtonType="Button" />
                                    <asp:BoundField DataField="ContactID" HeaderText="ContactID" SortExpression="ContactID" Visible="False" />
                                    <asp:BoundField DataField="FirstName" HeaderText="FirstName" SortExpression="FirstName" />
                                    <asp:BoundField DataField="LastName" HeaderText="LastName" SortExpression="LastName" />
                                    <asp:BoundField DataField="EmailAddress" HeaderText="EmailAddress" SortExpression="EmailAddress" />
                                </Columns>
                                <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
                                <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
                                <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
                                <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
                                <EditRowStyle BackColor="#999999" />
                                <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
                                <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
                                <EmptyDataTemplate>No data found.</EmptyDataTemplate>
                            </asp:GridView>
                            <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:AdventureWorksConnectionString %>"
                                SelectCommand="SELECT ContactID, FirstName, LastName, EmailAddress FROM Person.Contact WHERE (UPPER(FirstName) = UPPER(@FIRSTNAME))" >
                                <SelectParameters>
                                    <asp:ControlParameter Name="FIRSTNAME" ControlId="TextBox1" Type="String" />
                                </SelectParameters>
                            </asp:SqlDataSource>
                        </td>
                        <td valign="top">
                            <b>Contacts list:</b><br />
                        <asp:ListBox ID="ListBox1" runat="server" Height="200px" Width="214px" /><br />
                        <asp:Button ID="saveButton" runat="server" Text="Save state" OnClick="saveButton_Click" ToolTip="Save the current state of the list" />
                        <asp:Button ID="recoverButton" runat="server" Text="Recover saved state" OnClick="recoverButton_Click" Enabled="false" ToolTip="Recover the last saved state" />
                        <asp:Button ID="clearButton" runat="server" Text="Clear" OnClick="clearButton_Click" ToolTip="Remove all items from the list" /><br />
                            <br />
                            <asp:CheckBox ID="CheckBox1" runat="server" Checked="True" OnCheckedChanged="CheckBox1_CheckedChanged"
                                Text="Show saved state" AutoPostBack="True" /></td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <br />
                            <br />
                            &nbsp;&nbsp;
                            <hr />
                            Message: <asp:Label ID="Message" runat="server" ForeColor="SteelBlue" />&nbsp;&nbsp;<br />
                            <asp:Label ID="StateLabel" runat="server" Text="State:"></asp:Label>
                            <asp:Label ID="SavedState" runat="server"/><br />                        
                        </td>
                    </tr>
                </table>
            </ContentTemplate>
        </asp:UpdatePanel>
        <asp:UpdateProgress ID="UpdateProgress1" runat="server">
            <ProgressTemplate>
                <asp:Image ID="Image1" runat="server" ImageUrl="..\images\spinner.gif" />&nbsp;Processing...
            </ProgressTemplate>
        </asp:UpdateProgress>
    </form>
</body>
</html>

Comentários

A JavaScriptSerializer classe é usada internamente pela camada de comunicação assíncrona para serializar e desserializar os dados que são passados entre o navegador e o servidor Web.The JavaScriptSerializer class is used internally by the asynchronous communication layer to serialize and deserialize the data that is passed between the browser and the Web server. Você não pode acessar essa instância do serializador.You cannot access that instance of the serializer. No entanto, essa classe expõe uma API pública.However, this class exposes a public API. Portanto, você pode usar a classe quando quiser trabalhar com JavaScript Object Notation (JSON) em código gerenciado.Therefore, you can use the class when you want to work with JavaScript Object Notation (JSON) in managed code.

Para serializar um objeto, use Serialize o método.To serialize an object, use the Serialize method. Para desserializar uma cadeia de caracteres JSON, Deserialize use DeserializeObject os métodos ou.To deserialize a JSON string, use the Deserialize or DeserializeObject methods. Para serializar e desserializar os tipos que não têm suporte nativo JavaScriptSerializerpelo, implemente conversores personalizados usando JavaScriptConverter a classe.To serialize and deserialize types that are not natively supported by JavaScriptSerializer, implement custom converters by using the JavaScriptConverter class. Em seguida, registre os conversores usando RegisterConverters o método.Then register the converters by using the RegisterConverters method.

Mapeamento entre tipos gerenciados e JSONMapping Between Managed Types and JSON

A tabela a seguir mostra o mapeamento entre os tipos gerenciados e o JSON para o processo de serialização.The following table shows the mapping between managed types and JSON for the serialization process. Esses tipos gerenciados são suportados nativamente pelo JavaScriptSerializer.These managed types are natively supported by JavaScriptSerializer. Quando você estiver desserializando de uma cadeia de caracteres JSON para um tipo gerenciado, o mesmo mapeamento se aplicará.When you are deserializing from a JSON string to a managed type, the same mapping applies. No entanto, a desserialização pode ser assimétrica; Nem todos os tipos gerenciados serializáveis podem ser desserializados do JSON.However, deserialization can be asymmetric; not all serializable managed types can be deserialized from JSON.

Observação

Uma matriz multidimensional é serializada como uma matriz unidimensional e você deve usá-la como uma matriz simples.A multidimensional array is serialized as a one-dimensional array, and you should use it as a flat array.

Tipo gerenciadoManaged type Equivalente a JSONJSON equivalent
String(Somente codificação UTF-8).String (UTF-8 encoding only). Cadeia de CaracteresString
Char Cadeia de CaracteresString
Caractere nulo único (como, \ 0)Single null char (such as, \0 ) NuloNull
Boolean Booliano.Boolean. Representado em JSON como true oufalseRepresented in JSON as true or false
null(null referências de objeto Nullable e tipos de valor).null (null object references and Nullable value types). Um valor de cadeia de caracteres nuloA string value of null
DBNull Um valor de cadeia de caracteres nuloA string value of null
Tipos primitivos numéricos (ou compatíveis com numéricos) Int16: Int32 UInt16 SByte Byte, Int64,, UInt32, UInt64, Double,, Single, e.Primitive numeric (or numeric-compatible) types: Byte, SByte, Int16, Int32, Int64, UInt16, UInt32, UInt64, Double, and Single. A representação de cadeia de caracteres de cultura invariável é usada.The culture-invariant string representation is used. NúmeroNumber
DateTime Objeto Date, representado em JSON como "\/Date (número de tiques)\/".Date object, represented in JSON as "\/Date(number of ticks)\/". O número de tiques é um valor longo positivo ou negativo que indica o número de tiques (milissegundos) decorridos desde a meia-noite 01 de janeiro de 1970 UTC.The number of ticks is a positive or negative long value that indicates the number of ticks (milliseconds) that have elapsed since midnight 01 January, 1970 UTC.

O valor de data máximo com MaxValue suporte é (12/31/9999 11:59:59 PM) e o valor de data MinValue mínimo com suporte é (1/1/0001 12:00:00 AM).The maximum supported date value is MaxValue (12/31/9999 11:59:59 PM) and the minimum supported date value is MinValue (1/1/0001 12:00:00 AM).
Enumerações de tipo IntegerEnumerations of integer type Equivalente inteiro do valor de enumeraçãoInteger equivalent of the enumeration value
Tipos que IEnumerable implementam System.Collections.Generic.IEnumerable<T> ou que também não são implementações System.Collections.Generic.IDictionary<TKey,TValue>de IDictionary ou.Types that implement IEnumerable or System.Collections.Generic.IEnumerable<T> that are not also implementations of IDictionary or System.Collections.Generic.IDictionary<TKey,TValue>. Isso inclui tipos como Array, ArrayListe List<T>.This includes types such as Array, ArrayList, and List<T>. Matriz que usa a sintaxe de matriz JSONArray that uses JSON array syntax
Tipos que IDictionary implementam System.Collections.Generic.IDictionary<TKey,TValue>ou.Types that implement IDictionary or System.Collections.Generic.IDictionary<TKey,TValue>. Isso inclui tipos como Dictionary<TKey,TValue> e. HashtableThis includes types such as Dictionary<TKey,TValue> and Hashtable. Objeto JavaScript que usa a sintaxe de dicionário JSONJavaScript object that uses JSON dictionary syntax
Tipos concretos personalizados (não abstratos) que têm propriedades de instância pública que têm acessadores get ou campos de instância pública.Custom concrete (non-abstract) types that have public instance properties that have get accessors or public instance fields.

Observe que as propriedades públicas somente gravação, os atributos de propriedade pública ou de campo ScriptIgnoreAttributepúblico marcados com, e as propriedades indexadas públicas nesses tipos são ignorados.Note that public write-only properties, public property or public field attributes marked with ScriptIgnoreAttribute, and public indexed properties in these types are ignored.
Objeto JavaScript que usa a sintaxe de dicionário JSON.JavaScript object that uses JSON dictionary syntax. Uma propriedade de metadados especial chamada "__type" está incluída para garantir a desserialização correta.A special metadata property named "__type" is included to ensure correct deserialization. Verifique se as propriedades de instância pública têm acessadores get e Set para garantir a desserialização correta.Make sure that public instance properties have get and set accessors to ensure correct deserialization.
Guid Representação de cadeia de caracteres de um GUIDString representation of a GUID
Uri Representação de cadeia de caracteres do valor de retorno deGetComponentsString representation of the return value of GetComponents

Construtores

JavaScriptSerializer() JavaScriptSerializer() JavaScriptSerializer() JavaScriptSerializer()

Inicializa uma nova instância da classe JavaScriptSerializer que não tem um resolvedor de tipo.Initializes a new instance of the JavaScriptSerializer class that has no type resolver.

JavaScriptSerializer(JavaScriptTypeResolver) JavaScriptSerializer(JavaScriptTypeResolver) JavaScriptSerializer(JavaScriptTypeResolver) JavaScriptSerializer(JavaScriptTypeResolver)

Inicializa uma nova instância da classe JavaScriptSerializer que tem um resolvedor de tipo personalizado.Initializes a new instance of the JavaScriptSerializer class that has a custom type resolver.

Propriedades

MaxJsonLength MaxJsonLength MaxJsonLength MaxJsonLength

Obtém ou define o comprimento máximo de cadeias de caracteres JSON aceitas pela classe JavaScriptSerializer.Gets or sets the maximum length of JSON strings that are accepted by the JavaScriptSerializer class.

RecursionLimit RecursionLimit RecursionLimit RecursionLimit

Obtém ou define o limite para restringir o número de níveis de objeto a se processar.Gets or sets the limit for constraining the number of object levels to process.

Métodos

ConvertToType(Object, Type) ConvertToType(Object, Type) ConvertToType(Object, Type) ConvertToType(Object, Type)

Converte o objeto especificado no tipo especificado.Converts the specified object to the specified type.

ConvertToType<T>(Object) ConvertToType<T>(Object) ConvertToType<T>(Object) ConvertToType<T>(Object)

Converte o objeto fornecido no tipo especificado.Converts the given object to the specified type.

Deserialize(String, Type) Deserialize(String, Type) Deserialize(String, Type) Deserialize(String, Type)

Converte uma cadeia de caracteres formatada em JSON para um objeto do tipo especificado.Converts a JSON-formatted string to an object of the specified type.

Deserialize<T>(String) Deserialize<T>(String) Deserialize<T>(String) Deserialize<T>(String)

Converte a cadeia de caracteres JSON especificada em um objeto do tipo T.Converts the specified JSON string to an object of type T.

DeserializeObject(String) DeserializeObject(String) DeserializeObject(String) DeserializeObject(String)

Converte a cadeia de caracteres JSON especificada em um grafo de objeto.Converts the specified JSON string to an object graph.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determina se o objeto especificado é igual ao objeto atual.Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serve como a função de hash padrão.Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Obtém o Type da instância atual.Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Cria uma cópia superficial do Object atual.Creates a shallow copy of the current Object.

(Inherited from Object)
RegisterConverters(IEnumerable<JavaScriptConverter>) RegisterConverters(IEnumerable<JavaScriptConverter>) RegisterConverters(IEnumerable<JavaScriptConverter>) RegisterConverters(IEnumerable<JavaScriptConverter>)

Registra um conversor personalizado com a instância do JavaScriptSerializer.Registers a custom converter with the JavaScriptSerializer instance.

Serialize(Object) Serialize(Object) Serialize(Object) Serialize(Object)

Converte um objeto em uma cadeia de caracteres JSON.Converts an object to a JSON string.

Serialize(Object, StringBuilder) Serialize(Object, StringBuilder) Serialize(Object, StringBuilder) Serialize(Object, StringBuilder)

Serializa um objeto e grava a cadeia de caracteres JSON resultante no objeto StringBuilder especificado.Serializes an object and writes the resulting JSON string to the specified StringBuilder object.

ToString() ToString() ToString() ToString()

Retorna uma cadeia de caracteres que representa o objeto atual.Returns a string that represents the current object.

(Inherited from Object)

Aplica-se a

Veja também