SerializationInfo.AddValue Method (String, UInt32)


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Adds a 32-bit unsigned integer value into the SerializationInfo store.

This API is not CLS-compliant.

Namespace:   System.Runtime.Serialization
Assembly:  mscorlib (in mscorlib.dll)

Public Sub AddValue (
	name As String,
	value As UInteger


Type: System.String

The name to associate with the value, so it can be deserialized later.

Type: System.UInt32

The UInt32 value to serialize.

Exception Condition

The name parameter is null.


A value has already been associated with name.

If two values are added with names that differ only by case, no exception will be thrown, which is not a recommended practice. However, adding two values with the exact same name will cause the SerializationException to be thrown.

The following example uses the AddValue method to customize the serialization of a type. The code adds a string and an integer to an instance of the SerializationInfo class in the GetObjectData method of the ISerializable interface. The code also uses the GetValue method to retrieve values from the SerializationInfo.

Imports System
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Runtime.Serialization
Imports System.Security.Permissions
Imports System.IO

<Assembly: SecurityPermission _
(SecurityAction.RequestMinimum, Execution:=True)> 

Class Program

    Public Shared Sub Main()
        Catch exc As Exception
            Console.WriteLine("{0}: {1}", exc.Message, exc.StackTrace)
            Console.WriteLine("Press Enter to exit....")
        End Try

    End Sub

    Shared Sub Run()
        Dim binaryFmt As New BinaryFormatter()
        Dim p As New Person()
        p.IdNumber = 1010
        p.Name = "AAAAA"
        Dim fs As New FileStream("Person.xml", FileMode.OpenOrCreate)
        binaryFmt.Serialize(fs, p)
        Console.WriteLine _
        ("Original Name: {0}, Original ID: {1}", p.Name, p.IdNumber)

        ' Deserialize.
        fs = New FileStream("Person.xml", FileMode.OpenOrCreate)
        Dim p2 As Person = CType(binaryFmt.Deserialize(fs), Person)
        Console.WriteLine("New Name: {0}, New ID: {1}", _
        p2.Name, p2.IdNumber)
    End Sub
End Class

<Serializable()> _
Public Class Person
    Implements ISerializable
    Private name_value As String
    Private ID_value As Integer

    Public Sub New()

    End Sub

    Protected Sub New(ByVal info As SerializationInfo, _
    ByVal context As StreamingContext)
        If info Is Nothing Then
            Throw New System.ArgumentNullException("info")
        End If
        name_value = CStr(info.GetValue("AltName", GetType(String)))
        ID_value = Fix(info.GetValue("AltID", GetType(Integer)))

    End Sub

    <SecurityPermission(SecurityAction.LinkDemand, _
    Flags:=SecurityPermissionFlag.SerializationFormatter)> _
    Public Overridable Sub GetObjectData _
    (ByVal info As SerializationInfo, _
    ByVal context As StreamingContext) _
    Implements ISerializable.GetObjectData
        If info Is Nothing Then
            Throw New System.ArgumentNullException("info")
        End If
        info.AddValue("AltName", "XXX")
        info.AddValue("AltID", 9999)

    End Sub

    Public Property Name() As String
            Return name_value
        End Get
        Set(ByVal value As String)
            name_value = value
        End Set
    End Property

    Public Property IdNumber() As Integer
            Return ID_value
        End Get
        Set(ByVal value As Integer)
            ID_value = value
        End Set
    End Property
End Class

.NET Framework
Available since 1.1
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