Vb net updating xml file

Row Filter = "monitor_id = " & val Dim url As String = "" 'Retrieve my values returned in the result For Each drv In dv url = drv("url_na") Next When I step through the code and look at the for each loop it fails with the message "url_na is neither a Data Column nor a Data Relation for table Monitor." I am thinking I am not handling the url_list section correctly.Public Class Ini File ' API functions Private Declare Ansi Function Get Private Profile String _ Lib "kernel32.dll" Alias "Get Private Profile String A" _ (By Val lp Application Name As String, _ By Val lp Key Name As String, By Val lp Default As String, _ By Val lp Returned String As System. String Builder, _ By Val n Size As Integer, By Val lp File Name As String) _ As Integer Private Declare Ansi Function Write Private Profile String _ Lib "kernel32.dll" Alias "Write Private Profile String A" _ (By Val lp Application Name As String, _ By Val lp Key Name As String, By Val lp String As String, _ By Val lp File Name As String) As Integer Private Declare Ansi Function Get Private Profile Int _ Lib "kernel32.dll" Alias "Get Private Profile Int A" _ (By Val lp Application Name As String, _ By Val lp Key Name As String, By Val n Default As Integer, _ By Val lp File Name As String) As Integer Private Declare Ansi Function Flush Private Profile String _ Lib "kernel32.dll" Alias "Write Private Profile String A" _ (By Val lp Application Name As Integer, _ By Val lp Key Name As Integer, By Val lp String As Integer, _ By Val lp File Name As String) As Integer Dim str Filename As String ' Constructor, accepting a filename Public Sub New(By Val Filename As String) str Filename = Filename End Sub ' Read-only filename property Read Only Property File Name() As String Get Return str Filename End Get End Property Public Function Get String(By Val Section As String, _ By Val Key As String, By Val [Default] As String) As String ' Returns a string from your INI file Dim int Char Count As Integer Dim obj Result As New System. String Builder(256) int Char Count = Get Private Profile String(Section, Key, _ [Default], obj Result, obj Result. "Rocky" wrote: The following code should compile just fine (provided that you have text Box1 and text Box2 Text Boxes on your form): Try Dim file Name As String = "my File.xml" Dim user Name As String = text Box1. Text Dim xml Doc As Xml Document = New Xml Document xml Doc. Net XML library to add nodes into it and then save the result into a file (string or stream)... Append(attr) ' append user Id node Dim uid Node As Xml Node = xml Doc. Create Element("user") ' append attribute Dim attr As Xml Attribute = CType(xml Doc. Catch block "Rocky" wrote: The following code should compile just fine (provided that you have text Box1 and text Box2 Text Boxes on your form): Try Dim file Name As String = "my File.xml" Dim user Name As String = text Box1. Text Dim xml Doc As Xml Document = New Xml Document xml Doc. When I click submit, i want to add whatevers in the text box1 as username and whatevers in textbox2 as userid into an xml file. Alternatively, you could create an XML document and use . My xml file look like this: " Or you could omit the tabs and carriage returns as they are ingnored by xml parser anyhow.

And do not forget to wrap the whole thing into Try.. And do not forget to wrap the whole thing into Try.. Append(attr) ' append user Id node Dim uid Node As Xml Node = xml Doc. Append Child(node) Else Dim txt Node As Xml Node = node. First Child If Type Of txt Node Is Xml Text Then txt Node. Private _File Name As String = Nothing Private _Monitors Configuration As List(Of Monitor)=Nothing Private _Monitor Index As integer = 0 Protected Sub Notify Property Changed(By Val name As String) Raise Event Property Changed(Me, New Property Changed Event Args(name)) End Sub Public Event Property Changed(By Val sender As Object, By Val e As System. List Of Url '(you might want to chk) End Get End Property Public Property Url Index As Integer Get return _Url Index End Get Set (value) if value = _Url Index then return ' you might want to perform some check here _Url Index = value Notify Property Changed("Url Index") End Set End Property ' And Also : Add Monitor / Add Url / Save Configuration / ...

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