9/13/2023 0 Comments Serialize![]() ![]() Deserialize returns a generic object so the code uses DirectCast to convert it into a Person object.ĭim string_reader As New StringReader(txtSerialization.Text)ĭirectCast(xml_serializer. ![]() The code then calls the serializer's Deserialize method, passing it the stream (StringReader) from which it should read the serialization. It makes a StringReader initialized to hold the previously created serialization. It creates a new XmlSerializer for Person objects as before. The following code deserializes the serialization string to recreate the Person object. Notice how the serializer automatically used the names of the Person object's public variables as tags in the resulting XML. TxtSerialization.Text = string_writer.ToString() Xml_serializer.Serialize(string_writer, per) The program displays the serialization in a text box and then closes the StringWriter.ĭim xml_serializer As New XmlSerializer(GetType(Person)) The code calls the serializer's Serialize method, passing it the stream to serialize into (the StringWriter) and the Person object to serialize. You could serialize into other stream objects such as file streams if you want. The code makes a StringWriter object so it can serialize into a string. It then creates an XmlSerializer object, passing its constructor the type of the object that it will serialize (Person). First it creates a new Person object, passing its constructor values entered in text boxes. The following code serializes a Person object. New_LastName As String, ByVal new_Street As String, _īyVal new_City As String, ByVal new_State As _ Public Sub New(ByVal new_FirstName As String, ByVal _ ' Empty constructor required for serialization. Note that the class must have a default, empty constructor that takes no parameters because the serializer uses it to deserialize objects. First create the class that you want to serialize and decorate it with the Serializable attribute. Dim serializer As New XmlSerializer(GetType(PurchaseOrder)) If the XML document has been altered with unknown nodes or attributes, handle them with. It is not possible to convert input to the target type. serializer.Serialize(writer, po) writer.Close() End Sub Protected Sub ReadPO(filename As String) Create an instance of the XmlSerializer class specify the type of object to be deserialized. 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. Setrialize, deserialize, serialization, XmlSerializer, VB.NETīasic serialization in Visual Basic. input contains a 'type' property that indicates either Object or a non-instantiable type (for example, an abstract type or an interface). This example shows how to serialize and deserialize objects in Visual Basic. Serialize and deserialize objects in Visual Basic. VB Helper: HowTo: Serialize and deserialize objects in Visual Basic. ![]()
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