Namespace SL_DataContractJsonSerializer
Partial Public Class Page
Inherits UserControl
Public Sub New()
InitializeComponent()
End Sub
'This uses an event handler, not SL data binding
Private Sub OnClick(ByVal sender As Object, ByVal args As EventArgs)
txtOutput1.Text = "Create a User object and serialize it."
Dim json As String = WriteFromObject()
txtOutput2.Text = json.ToString() ' Displays: {"Age":42,"Name":"Bob"}
txtOutput3.Text = "Deserialize the data to a User object."
Dim jsonString As String = "{'Name':'Bill', 'Age':53}"
Dim deserializedUser As User = ReadToObject(jsonString)
txtOutput4.Text = deserializedUser.Name ' Displays: Bill
txtOutput5.Text = deserializedUser.Age.ToString() ' Displays: 53
End Sub
' Create a User object and serialize it to a JSON stream.
Public Shared Function WriteFromObject() As String
'Create User object.
Dim user As New User("Bob", 42)
'Create a stream to serialize the object to.
Dim ms As New MemoryStream()
' Serializer the User object to the stream.
Dim ser As New DataContractJsonSerializer(GetType(User))
ser.WriteObject(ms, user)
Dim json() As Byte = ms.ToArray()
ms.Close()
Return Encoding.UTF8.GetString(json, 0, json.Length)
End Function
' Deserialize a JSON stream to a User object.
Public Shared Function ReadToObject(ByVal json As String) As User
Dim deserializedUser As New User()
Dim ms As New MemoryStream(Encoding.UTF8.GetBytes(json))
Dim ser As New DataContractJsonSerializer(deserializedUser.GetType())
deserializedUser = TryCast(ser.ReadObject(ms), User)
ms.Close()
Return deserializedUser
End Function
End Class
<DataContract> _
Public Class User
Private privateName As String
<DataMember> _
Public Property Name() As String
Get
Return privateName
End Get
Set(ByVal value As String)
privateName = value
End Set
End Property
Private privateAge As Integer
<DataMember> _
Public Property Age() As Integer
Get
Return privateAge
End Get
Set(ByVal value As Integer)
privateAge = value
End Set
End Property
Public Sub New()
End Sub
Public Sub New(ByVal newName As String, ByVal newAge As Integer)
Name = newName
Age = newAge
End Sub
End Class
End Namespace