Programming Forums > Application Development > Visual Basic .NET

nascar2000 · Nov 17th, 2006, 5:00 AM

hello everybody, i need help in reading a XML file , can somebody teach me how to read from a xml file within visual basic frame.

alphonso · Nov 17th, 2006, 6:27 AM

You might wanna start reading here

melbolt · Nov 17th, 2006, 9:11 AM

here is an example from one of my programs where i read xml from a file and puts the data into an array. The xml contains a bunch of random phrases.

here's an example of what my Phrases.xml file looks like

 xml Syntax (Toggle Plain Text) 
<?xml version="1.0" encoding="utf-8"?>
<phrases>
  <phrase>phrase 1</phrase>
  <phrase>phrase 2</phrase>
  <phrase>phrase 3</phrase>
  <phrase>phrase 4</phrase>
</phrases>
<?xml version="1.0" encoding="utf-8"?>
<phrases>
  <phrase>phrase 1</phrase>
  <phrase>phrase 2</phrase>
  <phrase>phrase 3</phrase>
  <phrase>phrase 4</phrase>
</phrases>

 vbnet Syntax (Toggle Plain Text) 
        Dim PhraseArray(500) As String
        Dim MyXmlTextReader As New XmlTextReader("S:\ApplicationPool\CIMS Talker\Phrases.xml")
        Dim i As Integer = 0
        MyXmlTextReader.WhitespaceHandling = WhitespaceHandling.None
 
        'initial read to get past xml declaration
        MyXmlTextReader.Read()
 
        While MyXmlTextReader.Read()
            If MyXmlTextReader.Value.Length > 0 Then
                PhraseArray(i) = MyXmlTextReader.Value
                i = i + 1
            End If
        End While
 
        MyXmlTextReader.Close()
        Dim PhraseArray(500) As String
        Dim MyXmlTextReader As New XmlTextReader("S:\ApplicationPool\CIMS Talker\Phrases.xml")
        Dim i As Integer = 0
        MyXmlTextReader.WhitespaceHandling = WhitespaceHandling.None

        'initial read to get past xml declaration
        MyXmlTextReader.Read()
        
        While MyXmlTextReader.Read()
            If MyXmlTextReader.Value.Length > 0 Then
                PhraseArray(i) = MyXmlTextReader.Value
                i = i + 1
            End If
        End While

        MyXmlTextReader.Close()

much like using a sqldatareader, everytime you call .Read() it retrieves the next value.

btw import system.xml

Nov 17th, 2006, 5:00 AM	#1
nascar2000 Newbie Join Date: Apr 2006 Posts: 9 Rep Power: 0	help in reading XML hello everybody, i need help in reading a XML file , can somebody teach me how to read from a xml file within visual basic frame.

Nov 17th, 2006, 6:27 AM	#2
alphonso Programmer Join Date: Dec 2005 Location: Philippines, where the seasons are: hot, and hotter Posts: 72 Rep Power: 3	You might wanna start reading here __________________ "The most incomprehensible idea about the universe is that it is comprehensible" - Albert Einstein

Nov 17th, 2006, 9:11 AM	#3
melbolt Hobbyist Programmer Join Date: Feb 2005 Location: PA, USA Posts: 237 Rep Power: 4	here is an example from one of my programs where i read xml from a file and puts the data into an array. The xml contains a bunch of random phrases. here's an example of what my Phrases.xml file looks like xml Syntax (Toggle Plain Text) <?xml version="1.0" encoding="utf-8"?> <phrases> <phrase>phrase 1</phrase> <phrase>phrase 2</phrase> <phrase>phrase 3</phrase> <phrase>phrase 4</phrase> </phrases> <?xml version="1.0" encoding="utf-8"?> <phrases> <phrase>phrase 1</phrase> <phrase>phrase 2</phrase> <phrase>phrase 3</phrase> <phrase>phrase 4</phrase> </phrases> vbnet Syntax (Toggle Plain Text) Dim PhraseArray(500) As String Dim MyXmlTextReader As New XmlTextReader("S:\ApplicationPool\CIMS Talker\Phrases.xml") Dim i As Integer = 0 MyXmlTextReader.WhitespaceHandling = WhitespaceHandling.None 'initial read to get past xml declaration MyXmlTextReader.Read() While MyXmlTextReader.Read() If MyXmlTextReader.Value.Length > 0 Then PhraseArray(i) = MyXmlTextReader.Value i = i + 1 End If End While MyXmlTextReader.Close() Dim PhraseArray(500) As String Dim MyXmlTextReader As New XmlTextReader("S:\ApplicationPool\CIMS Talker\Phrases.xml") Dim i As Integer = 0 MyXmlTextReader.WhitespaceHandling = WhitespaceHandling.None 'initial read to get past xml declaration MyXmlTextReader.Read() While MyXmlTextReader.Read() If MyXmlTextReader.Value.Length > 0 Then PhraseArray(i) = MyXmlTextReader.Value i = i + 1 End If End While MyXmlTextReader.Close() much like using a sqldatareader, everytime you call .Read() it retrieves the next value. btw import system.xml __________________ I have never let my schooling interfere with my education. -Mark Twain- Xbox live gamertag: melbolt Last edited by melbolt; Nov 17th, 2006 at 10:09 AM.

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Programming Forums > Application Development > Visual Basic .NET

help in reading XML