XML Methods

Hi, I am not the best at visual basic so please be patient :D

I have some code that works fine however I get some warnings saying the code will no longer be supported or used in the future.

The simple nuts and bolts is I read in an XML file, and my code allows me to edit, or add (havent worked out the delete yet haha).

So before I code any more I would rather bring it up to current practice. Can someone help by means of sample code etc?

Here is my current code:

Code:

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Imports System.Xml
Public Class Form1
    Public Sub Loadsample()
        Dim data As New XmlDataDocument
        Dim se As New DataSet("samplelists")
        data.DataSet.ReadXml(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) & "/sample.xml")
        se = data.DataSet
        DataGridView1.DataSource = se.DefaultViewManager
        DataGridView1.DataMember = "Server"
        DataGridView1.Columns.Item(0).HeaderText = "Server Name"
        DataGridView1.Columns.Item(1).HeaderText = "Server URL"
        DataGridView1.Columns.Item(2).Visible = False
        DataGridView1.Columns.Item(3).Visible = False
    End Sub

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Loadsample()
    End Sub

    Private Sub DATA_Click() Handles DataGridView1.Click
        Dim da As New XmlDataDocument
        da.Load(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) & "/sample.xml")
        Dim path As String = "/samplelists/server/serverName[text()='" & DataGridView1.CurrentRow.Cells(0).Value.ToString & "']"
        Dim path2 As String = "/samplelists/server/serverURL[text()='" & DataGridView1.CurrentRow.Cells(1).Value.ToString & "']"
        Dim node As XmlNode = da.SelectSingleNode(path)
        Dim node2 As XmlNode = da.SelectSingleNode(path2)
        TextBox3.Text = node.InnerText
        TextBox4.Text = node2.InnerText

    End Sub

    Private Sub Add_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Add.Click
        Dim doc As New XmlDocument
        doc.Load(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) & "/sample.xml")
        Dim ele As XmlNode = doc.DocumentElement
        Dim chi As XmlElement = doc.CreateElement("server")
        Dim chi1 As XmlElement = doc.CreateElement("serverName")
        Dim chi2 As XmlElement = doc.CreateElement("serverURL")
        chi.SetAttribute("dateAdded", Date.Today.ToString)
        chi.SetAttribute("addedBy", "user")
        chi1.InnerText = TextBox1.Text
        chi2.InnerText = TextBox2.Text
        chi.AppendChild(chi1)
        chi.AppendChild(chi2)
        ele.AppendChild(chi)
        doc.Save(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) & "/sample.xml")
        TextBox1.Text = ""
        TextBox2.Text = ""
        Loadsample()
        MsgBox("Data Added")
    End Sub

    Private Sub Update_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Update.Click
        Dim da As New XmlDataDocument
        da.Load(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) & "/sample.xml")
        Dim path As String = "/samplelists/server/serverName[text()='" & DataGridView1.CurrentRow.Cells(0).Value.ToString & "']"
        Dim path2 As String = "/samplelists/server/serverURL[text()='" & DataGridView1.CurrentRow.Cells(1).Value.ToString & "']"
        Dim node As XmlNode = da.SelectSingleNode(path)
        Dim node2 As XmlNode = da.SelectSingleNode(path2)
        node.InnerText = TextBox3.Text
        node2.InnerText = TextBox4.Text
        da.Save(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) & "/sample.xml")
        Loadsample()
    End Sub

    Private Sub Quit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Quit.Click
        End
    End Sub


End Class

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Things to consider, how long will the app stay in production? If many years than consider using current methods and if not don't worry about it.
Will you be upgrading Visual Studio during the life span of the app, if so and you find the methods giving warnings now turn out to not work then upgrade the methods at that time.

Here are some current methods using LINQ you might consider
http://msdn.microsoft.com/en-us/vstudio/bb688087

Ok I did actually ponder some of this before posting. I have some questions, which will no doubt sound stupid.

If I continue with my existing methods and then have a completed "app". So I have my .exe file that I will no longer update. If my methods expire will my .exe file no longer work? or is it only if I go to compile it again?

Basically if I make the .exe the now will it run forever?

Quote:

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Originally Posted by jmcall10

If I continue with my existing methods and then have a completed "app". So I have my .exe file that I will no longer update. If my methods expire will my .exe file no longer work? or is it only if I go to compile it again?

Basically if I make the .exe the now will it run forever?

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In this case your app will work as is since it is compiled to work with a specific Framework on the OS it was designed for.