Comments on snippet: 'Global System Object extensions for easier conditionals (VB.net example)'

rpresser said on 17/Nov/2011

Thu, 17 Nov 2011 17:23:55 UTC

This is wrong. Extension methods are possible and easy in VB.NET. Here is my favorite: Imports System.Runtime.CompilerServices Imports System.Xml.Serialization Module ToFromXml _ Public Function ToXml(Of T)(ByVal x As T) As String Dim ser As New XmlSerializer(GetType(T)) Using sw As New IO.StringWriter Using xtw As New System.Xml.XmlTextWriter(sw) xtw.Indentation = False ser.Serialize(xtw, x) Return sw.ToString() End Using End Using End Function _ Public Function ReadFromXml(Of T)(ByRef x As T, ByVal xml As String) As T Dim ser As New XmlSerializer(GetType(T)) Using sr As New IO.StringReader(xml) x = CType(ser.Deserialize(sr), T) Return x End Using End Function End Module

rpresser said on 17/Nov/2011

Thu, 17 Nov 2011 17:26:02 UTC

Trying again: Imports System.Runtime.CompilerServices Imports System.Xml.Serialization Module ToFromXml `` _ Public Function ToXml(Of T)(ByVal x As T) As String Dim ser As New XmlSerializer(GetType(T)) Using sw As New IO.StringWriter Using xtw As New System.Xml.XmlTextWriter(sw) xtw.Indentation = False ser.Serialize(xtw, x) Return sw.ToString() End Using End Using End Function `` _ Public Function ReadFromXml(Of T)(ByRef x As T, ByVal xml As String) As T Dim ser As New XmlSerializer(GetType(T)) Using sr As New IO.StringReader(xml) x = CType(ser.Deserialize(sr), T) Return x End Using End Function End Module Usage: Module test Sub test Dim x As New YourClass Dim xml As String = x.ToXML() Dim y as New YourClass y.ReadFromXml(xml) End Sub End Module

rpresser said on 17/Nov/2011

Thu, 17 Nov 2011 17:26:44 UTC

I don't know why the [Extension()] isn't showing. It is a code attribute applied to the Function on the line above.

charllykorpa8698 said on 23/Feb/2023

Thu, 23 Feb 2023 06:55:49 UTC

This is an interesting example of how to use global system object extensions to make conditionals easier to work with in VB.net. These extensions can provide an easier way to program, so it is beneficial to understand how to use them. For more information, take a look at the C# example provided, diamond rings which can offer additional insight into this concept.