Append Child Nodes XML in Memory

[fremenusul]

I know I have been asking LOTS of xml questions and I really apprecaite all
the help.

Here is my XML file
<?xml version="1.0" encoding="utf-8" ?>

<products>
<!-- Repeat the structure below for each product. -->
<product>
<id>CP-90, T-32</id>
<company>Carwel l</company>
<address>Stre et Address</address>
<city>City</city>
<state>State</state>
<zip>Zip</zip>
</product>

<!-- Next product here-->
</products>
I am loading the doc in memory using xmlDocument
Dim xmlFile As String = xmlLocation()
Dim xmlDoc As XmlDocument

Private Sub Products_Load(B yVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
xmlDoc = New XmlDocument
xmlDoc.Load(xml File)
End Sub

Here is when my problem starts. I have a form with all the information that
I needed "appended" to the XMLdoc (in memory). I tried

Private Sub AddProduct(ByVa l node As XmlNode)
Dim xmlProductName = txtProduct.Text
Dim xmlCompanyName = txtCompany.Text
Dim xmlAddress = txtAddress.Text
Dim xmlCity = txtCity.Text
Dim xmlState = cmboState.Text
Dim xmlZip = txtZip.Text
node.AppendChil d(xmlProductNam e)
node.AppendChil d(xmlCompanyNam e)
node.AppendChil d(xmlAddress)
node.AppendChil d(xmlCity)
node.AppendChil d(xmlState)
node.AppendChil d(xmlZip)
End Sub

But I am really confused on what node to pass. Any help would be apprciated.

[Sean Hederman]

AddProduct(xmlD oc.SelectSingle Node("/"))

/ is the XPath for the root node.

"fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
news:79******** *************** ***********@mic rosoft.com...

I know I have been asking LOTS of xml questions and I really apprecaite all
the help.

Here is my XML file
<?xml version="1.0" encoding="utf-8" ?>

<products>
<!-- Repeat the structure below for each product. -->
<product>
<id>CP-90, T-32</id>
<company>Carwel l</company>
<address>Stre et Address</address>
<city>City</city>
<state>State</state>
<zip>Zip</zip>
</product>

<!-- Next product here-->
</products>
I am loading the doc in memory using xmlDocument
Dim xmlFile As String = xmlLocation()
Dim xmlDoc As XmlDocument

Private Sub Products_Load(B yVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
xmlDoc = New XmlDocument
xmlDoc.Load(xml File)
End Sub

Here is when my problem starts. I have a form with all the information
that
I needed "appended" to the XMLdoc (in memory). I tried

Private Sub AddProduct(ByVa l node As XmlNode)
Dim xmlProductName = txtProduct.Text
Dim xmlCompanyName = txtCompany.Text
Dim xmlAddress = txtAddress.Text
Dim xmlCity = txtCity.Text
Dim xmlState = cmboState.Text
Dim xmlZip = txtZip.Text
node.AppendChil d(xmlProductNam e)
node.AppendChil d(xmlCompanyNam e)
node.AppendChil d(xmlAddress)
node.AppendChil d(xmlCity)
node.AppendChil d(xmlState)
node.AppendChil d(xmlZip)
End Sub

But I am really confused on what node to pass. Any help would be
apprciated.

[Sean Hederman]

Whoops! That was silly, rather do:
AddProduct(xmlD oc.ChildNodes(0 ))
It'll be faster than using XPath.

"fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
news:79******** *************** ***********@mic rosoft.com...

I know I have been asking LOTS of xml questions and I really apprecaite all
the help.

Here is my XML file
<?xml version="1.0" encoding="utf-8" ?>

<products>
<!-- Repeat the structure below for each product. -->
<product>
<id>CP-90, T-32</id>
<company>Carwel l</company>
<address>Stre et Address</address>
<city>City</city>
<state>State</state>
<zip>Zip</zip>
</product>

<!-- Next product here-->
</products>
I am loading the doc in memory using xmlDocument
Dim xmlFile As String = xmlLocation()
Dim xmlDoc As XmlDocument

Private Sub Products_Load(B yVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
xmlDoc = New XmlDocument
xmlDoc.Load(xml File)
End Sub

Here is when my problem starts. I have a form with all the information
that
I needed "appended" to the XMLdoc (in memory). I tried

Private Sub AddProduct(ByVa l node As XmlNode)
Dim xmlProductName = txtProduct.Text
Dim xmlCompanyName = txtCompany.Text
Dim xmlAddress = txtAddress.Text
Dim xmlCity = txtCity.Text
Dim xmlState = cmboState.Text
Dim xmlZip = txtZip.Text
node.AppendChil d(xmlProductNam e)
node.AppendChil d(xmlCompanyNam e)
node.AppendChil d(xmlAddress)
node.AppendChil d(xmlCity)
node.AppendChil d(xmlState)
node.AppendChil d(xmlZip)
End Sub

But I am really confused on what node to pass. Any help would be
apprciated.

[fremenusul]

Now I am getting this error

Additional information: Specified cast is not valid.

error begins on this line
node.AppendChil d(xmlProductNam e)

Thanks for the help.

Michae
"Sean Hederman" wrote:

Whoops! That was silly, rather do:
AddProduct(xmlD oc.ChildNodes(0 ))
It'll be faster than using XPath.

"fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
news:79******** *************** ***********@mic rosoft.com...

I know I have been asking LOTS of xml questions and I really apprecaite all
the help.

Here is my XML file
<?xml version="1.0" encoding="utf-8" ?>

<products>
<!-- Repeat the structure below for each product. -->
<product>
<id>CP-90, T-32</id>
<company>Carwel l</company>
<address>Stre et Address</address>
<city>City</city>
<state>State</state>
<zip>Zip</zip>
</product>

<!-- Next product here-->
</products>
I am loading the doc in memory using xmlDocument
Dim xmlFile As String = xmlLocation()
Dim xmlDoc As XmlDocument

Private Sub Products_Load(B yVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
xmlDoc = New XmlDocument
xmlDoc.Load(xml File)
End Sub

Here is when my problem starts. I have a form with all the information
that
I needed "appended" to the XMLdoc (in memory). I tried

Private Sub AddProduct(ByVa l node As XmlNode)
Dim xmlProductName = txtProduct.Text
Dim xmlCompanyName = txtCompany.Text
Dim xmlAddress = txtAddress.Text
Dim xmlCity = txtCity.Text
Dim xmlState = cmboState.Text
Dim xmlZip = txtZip.Text
node.AppendChil d(xmlProductNam e)
node.AppendChil d(xmlCompanyNam e)
node.AppendChil d(xmlAddress)
node.AppendChil d(xmlCity)
node.AppendChil d(xmlState)
node.AppendChil d(xmlZip)
End Sub

But I am really confused on what node to pass. Any help would be
apprciated.

[Sean Hederman]

What is the type of xmlProductName (check the runtime type in the debugger)?

"fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
news:40******** *************** ***********@mic rosoft.com...

Now I am getting this error

Additional information: Specified cast is not valid.

error begins on this line
node.AppendChil d(xmlProductNam e)

Thanks for the help.

Michae
"Sean Hederman" wrote:

Whoops! That was silly, rather do:
AddProduct(xmlD oc.ChildNodes(0 ))
It'll be faster than using XPath.

"fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
news:79******** *************** ***********@mic rosoft.com...

>I know I have been asking LOTS of xml questions and I really apprecaite
>all
> the help.
>
> Here is my XML file
> <?xml version="1.0" encoding="utf-8" ?>
>
> <products>
> <!-- Repeat the structure below for each product. -->
> <product>
> <id>CP-90, T-32</id>
> <company>Carwel l</company>
> <address>Stre et Address</address>
> <city>City</city>
> <state>State</state>
> <zip>Zip</zip>
> </product>
>
> <!-- Next product here-->
> </products>
>
>
> I am loading the doc in memory using xmlDocument
> Dim xmlFile As String = xmlLocation()
> Dim xmlDoc As XmlDocument
>
> Private Sub Products_Load(B yVal sender As System.Object, ByVal e As
> System.EventArg s) Handles MyBase.Load
> xmlDoc = New XmlDocument
> xmlDoc.Load(xml File)
>
>
> End Sub
>
> Here is when my problem starts. I have a form with all the information
> that
> I needed "appended" to the XMLdoc (in memory). I tried
>
> Private Sub AddProduct(ByVa l node As XmlNode)
> Dim xmlProductName = txtProduct.Text
> Dim xmlCompanyName = txtCompany.Text
> Dim xmlAddress = txtAddress.Text
> Dim xmlCity = txtCity.Text
> Dim xmlState = cmboState.Text
> Dim xmlZip = txtZip.Text
> node.AppendChil d(xmlProductNam e)
> node.AppendChil d(xmlCompanyNam e)
> node.AppendChil d(xmlAddress)
> node.AppendChil d(xmlCity)
> node.AppendChil d(xmlState)
> node.AppendChil d(xmlZip)
> End Sub
>
> But I am really confused on what node to pass. Any help would be
> apprciated.

[fremenusul]

Here is my debug output.

'DefaultDomain' : Loaded
'c:\winnt\micro soft.net\framew ork\v1.1.4322\m scorlib.dll', No symbols loaded.
'Zadig': Loaded 'C:\Documents and Settings\mlubra no\My Documents\Visua l
Studio Projects\Zadig\ bin\Zadig.exe', Symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system. windows.forms\1 .0.5000.0__b77a 5c561934e089\sy stem.windows.fo rms.dll', No symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system\ 1.0.5000.0__b77 a5c561934e089\s ystem.dll', No
symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\microso ft.visualbasic\ 7.0.5000.0__b03 f5f7f11d50a3a\m icrosoft.visual basic.dll', No symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system. drawing\1.0.500 0.0__b03f5f7f11 d50a3a\system.d rawing.dll', No symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system. xml\1.0.5000.0_ _b77a5c561934e0 89\system.xml.d ll', No symbols loaded.
An unhandled exception of type 'System.Invalid CastException' occurred in
Zadig.exe

Additional information: Specified cast is not valid.
Unhandled Exception: System.InvalidC astException: Specified cast is not valid.
at Zadig.Products. AddProduct(XmlN ode node) in C:\Documents and
Settings\mlubra no\My Documents\Visua l Studio Projects\Zadig\ Products.vb:lin e
239
at Zadig.Products. bttnAdd_Click(O bject sender, EventArgs e) in
C:\Documents and Settings\mlubra no\My Documents\Visua l Studio
Projects\Zadig\ Products.vb:lin e 223
at System.Windows. Forms.Control.O nClick(EventArg s e)
at System.Windows. Forms.Button.On Click(EventArgs e)
at System.Windows. Forms.Button.On MouseUp(MouseEv entArgs mevent)
at System.Windows. Forms.Control.W mMouseUp(Messag e& m, MouseButtons
button, Int32 clicks)
at System.Windows. Forms.Control.W ndProc(Message& m)
at System.Windows. Forms.ButtonBas e.WndProc(Messa ge& m)
at System.Windows. Forms.Button.Wn dProc(Message& m)
at System.Windows. Forms.ControlNa tiveWindow.OnMe ssage(Message& m)
at System.Windows. Forms.ControlNa tiveWindow.WndP roc(Message& m)
at System.Windows. Forms.NativeWin dow.DebuggableC allback(IntPtr hWnd,
Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows. Forms.UnsafeNat iveMethods.Disp atchMessageW(MS G& msg)
at
System.Windows. Forms.Component Manager.System. Windows.Forms.U nsafeNativeMeth ods+IMsoCompone ntManager.FPush MessageLoop(Int 32
dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows. Forms.ThreadCon text.RunMessage LoopInner(Int32 reason,
ApplicationCont ext context)
at System.Windows. Forms.ThreadCon text.RunMessage Loop(Int32 reason,
ApplicationCont ext context)
at System.Windows. Forms.Applicati on.Run(Form mainForm)
at Zadig.Zadig.Mai n() in C:\Documents and Settings\mlubra no\My
Documents\Visua l Studio Projects\Zadig\ Main.vb:line 3The program '[328]
Zadig.exe' has exited with code 0 (0x0).

"fremenusul " wrote:

Now I am getting this error

Additional information: Specified cast is not valid.

error begins on this line
node.AppendChil d(xmlProductNam e)

Thanks for the help.

Michae
"Sean Hederman" wrote:

Whoops! That was silly, rather do:
AddProduct(xmlD oc.ChildNodes(0 ))
It'll be faster than using XPath.

"fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
news:79******** *************** ***********@mic rosoft.com...

I know I have been asking LOTS of xml questions and I really apprecaite all
the help.

Here is my XML file
<?xml version="1.0" encoding="utf-8" ?>

<products>
<!-- Repeat the structure below for each product. -->
<product>
<id>CP-90, T-32</id>
<company>Carwel l</company>
<address>Stre et Address</address>
<city>City</city>
<state>State</state>
<zip>Zip</zip>
</product>

<!-- Next product here-->
</products>
I am loading the doc in memory using xmlDocument
Dim xmlFile As String = xmlLocation()
Dim xmlDoc As XmlDocument

Private Sub Products_Load(B yVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
xmlDoc = New XmlDocument
xmlDoc.Load(xml File)
End Sub

Here is when my problem starts. I have a form with all the information
that
I needed "appended" to the XMLdoc (in memory). I tried

Private Sub AddProduct(ByVa l node As XmlNode)
Dim xmlProductName = txtProduct.Text
Dim xmlCompanyName = txtCompany.Text
Dim xmlAddress = txtAddress.Text
Dim xmlCity = txtCity.Text
Dim xmlState = cmboState.Text
Dim xmlZip = txtZip.Text
node.AppendChil d(xmlProductNam e)
node.AppendChil d(xmlCompanyNam e)
node.AppendChil d(xmlAddress)
node.AppendChil d(xmlCity)
node.AppendChil d(xmlState)
node.AppendChil d(xmlZip)
End Sub

But I am really confused on what node to pass. Any help would be
apprciated.

[Sean Hederman]

That would generally be caused by you not passing an XmlNode into the
method. Please can you put a breakpoint onto AddProduct(XmlN ode node), and
let us know what runtime type is reported by VS.NET for the parameter being
passed in.

"fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
news:8D******** *************** ***********@mic rosoft.com...

Here is my debug output.

'DefaultDomain' : Loaded
'c:\winnt\micro soft.net\framew ork\v1.1.4322\m scorlib.dll', No symbols
loaded.
'Zadig': Loaded 'C:\Documents and Settings\mlubra no\My Documents\Visua l
Studio Projects\Zadig\ bin\Zadig.exe', Symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system. windows.forms\1 .0.5000.0__b77a 5c561934e089\sy stem.windows.fo rms.dll',
No symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system\ 1.0.5000.0__b77 a5c561934e089\s ystem.dll', No
symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\microso ft.visualbasic\ 7.0.5000.0__b03 f5f7f11d50a3a\m icrosoft.visual basic.dll',
No symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system. drawing\1.0.500 0.0__b03f5f7f11 d50a3a\system.d rawing.dll',
No symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system. xml\1.0.5000.0_ _b77a5c561934e0 89\system.xml.d ll',
No symbols loaded.
An unhandled exception of type 'System.Invalid CastException' occurred in
Zadig.exe

Additional information: Specified cast is not valid.
Unhandled Exception: System.InvalidC astException: Specified cast is not
valid.
at Zadig.Products. AddProduct(XmlN ode node) in C:\Documents and
Settings\mlubra no\My Documents\Visua l Studio
Projects\Zadig\ Products.vb:lin e
239
at Zadig.Products. bttnAdd_Click(O bject sender, EventArgs e) in
C:\Documents and Settings\mlubra no\My Documents\Visua l Studio
Projects\Zadig\ Products.vb:lin e 223
at System.Windows. Forms.Control.O nClick(EventArg s e)
at System.Windows. Forms.Button.On Click(EventArgs e)
at System.Windows. Forms.Button.On MouseUp(MouseEv entArgs mevent)
at System.Windows. Forms.Control.W mMouseUp(Messag e& m, MouseButtons
button, Int32 clicks)
at System.Windows. Forms.Control.W ndProc(Message& m)
at System.Windows. Forms.ButtonBas e.WndProc(Messa ge& m)
at System.Windows. Forms.Button.Wn dProc(Message& m)
at System.Windows. Forms.ControlNa tiveWindow.OnMe ssage(Message& m)
at System.Windows. Forms.ControlNa tiveWindow.WndP roc(Message& m)
at System.Windows. Forms.NativeWin dow.DebuggableC allback(IntPtr hWnd,
Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows. Forms.UnsafeNat iveMethods.Disp atchMessageW(MS G& msg)
at
System.Windows. Forms.Component Manager.System. Windows.Forms.U nsafeNativeMeth ods+IMsoCompone ntManager.FPush MessageLoop(Int 32
dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows. Forms.ThreadCon text.RunMessage LoopInner(Int32 reason,
ApplicationCont ext context)
at System.Windows. Forms.ThreadCon text.RunMessage Loop(Int32 reason,
ApplicationCont ext context)
at System.Windows. Forms.Applicati on.Run(Form mainForm)
at Zadig.Zadig.Mai n() in C:\Documents and Settings\mlubra no\My
Documents\Visua l Studio Projects\Zadig\ Main.vb:line 3The program '[328]
Zadig.exe' has exited with code 0 (0x0).

"fremenusul " wrote:

Now I am getting this error

Additional information: Specified cast is not valid.

error begins on this line
node.AppendChil d(xmlProductNam e)

Thanks for the help.

Michae
"Sean Hederman" wrote:

> Whoops! That was silly, rather do:
> AddProduct(xmlD oc.ChildNodes(0 ))
> It'll be faster than using XPath.
>
> "fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
> news:79******** *************** ***********@mic rosoft.com...
> >I know I have been asking LOTS of xml questions and I really
> >apprecaite all
> > the help.
> >
> > Here is my XML file
> > <?xml version="1.0" encoding="utf-8" ?>
> >
> > <products>
> > <!-- Repeat the structure below for each product. -->
> > <product>
> > <id>CP-90, T-32</id>
> > <company>Carwel l</company>
> > <address>Stre et Address</address>
> > <city>City</city>
> > <state>State</state>
> > <zip>Zip</zip>
> > </product>
> >
> > <!-- Next product here-->
> > </products>
> >
> >
> > I am loading the doc in memory using xmlDocument
> > Dim xmlFile As String = xmlLocation()
> > Dim xmlDoc As XmlDocument
> >
> > Private Sub Products_Load(B yVal sender As System.Object, ByVal e
> > As
> > System.EventArg s) Handles MyBase.Load
> > xmlDoc = New XmlDocument
> > xmlDoc.Load(xml File)
> >
> >
> > End Sub
> >
> > Here is when my problem starts. I have a form with all the
> > information
> > that
> > I needed "appended" to the XMLdoc (in memory). I tried
> >
> > Private Sub AddProduct(ByVa l node As XmlNode)
> > Dim xmlProductName = txtProduct.Text
> > Dim xmlCompanyName = txtCompany.Text
> > Dim xmlAddress = txtAddress.Text
> > Dim xmlCity = txtCity.Text
> > Dim xmlState = cmboState.Text
> > Dim xmlZip = txtZip.Text
> > node.AppendChil d(xmlProductNam e)
> > node.AppendChil d(xmlCompanyNam e)
> > node.AppendChil d(xmlAddress)
> > node.AppendChil d(xmlCity)
> > node.AppendChil d(xmlState)
> > node.AppendChil d(xmlZip)
> > End Sub
> >
> > But I am really confused on what node to pass. Any help would be
> > apprciated.
>
>
>

[fremenusul]

Got the answer
(http://msdn.microsoft.com/newsgroups...9-5639e23d5cb4)

I do have another question about reading xml from memory though....
I am building a application that uses XML data to display prducts.

Currently, I have a class that holds the XML data.

Imports System.Xml

Public Class Settings

Private Shared xmlDoc As XmlDocument

Public Shared Property Products() As XmlDocument
Get
If xmlDoc Is Nothing Then
Dim xmlFile As String = xmlLocation()
Dim xmlDoc As XmlDocument

xmlDoc = New XmlDocument
xmlDoc.Load(xml File)
End If

Return xmlDoc
End Get
Set(ByVal Value As XmlDocument)

End Set
End Property

End Class

Here is where my problem begins. I have a form that has a combobox that will
display some of the xml data. If someone needs to add data a new form pops up
and they add data to the memory (xml). Then it saves the new XML file.

If they close the "add products" form, the combobox is NOT updated with the
new information. How can I have the combobox read the XML data (in memory)?

PS: here is how I was doing it before I added a class to hold XML data.
Private Sub Zadig_Load(ByVa l sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load

'Dim xmlTr As New XmlTextReader(x mlFile)

'While xmlTr.Read
' If xmlTr.Name = "id" AndAlso xmlTr.NodeType =
XmlNodeType.Ele ment Then
' cmbProducts.Ite ms.Add(xmlTr.Re adString)
' End If
'End While
'xmlTr.Close()

'xmlDoc = New XmlDocument
'xmlDoc.Load(xm lFile)

End Sub

I dont think I can do it in the "load" area because it is only loaded once.
I need something that will be "dynamic" with the combobox.

"Sean Hederman" wrote:

That would generally be caused by you not passing an XmlNode into the
method. Please can you put a breakpoint onto AddProduct(XmlN ode node), and
let us know what runtime type is reported by VS.NET for the parameter being
passed in.

"fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
news:8D******** *************** ***********@mic rosoft.com...

Here is my debug output.

'DefaultDomain' : Loaded
'c:\winnt\micro soft.net\framew ork\v1.1.4322\m scorlib.dll', No symbols
loaded.
'Zadig': Loaded 'C:\Documents and Settings\mlubra no\My Documents\Visua l
Studio Projects\Zadig\ bin\Zadig.exe', Symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system. windows.forms\1 .0.5000.0__b77a 5c561934e089\sy stem.windows.fo rms.dll',
No symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system\ 1.0.5000.0__b77 a5c561934e089\s ystem.dll', No
symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\microso ft.visualbasic\ 7.0.5000.0__b03 f5f7f11d50a3a\m icrosoft.visual basic.dll',
No symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system. drawing\1.0.500 0.0__b03f5f7f11 d50a3a\system.d rawing.dll',
No symbols loaded.
'Zadig.exe': Loaded
'c:\winnt\assem bly\gac\system. xml\1.0.5000.0_ _b77a5c561934e0 89\system.xml.d ll',
No symbols loaded.
An unhandled exception of type 'System.Invalid CastException' occurred in
Zadig.exe

Additional information: Specified cast is not valid.
Unhandled Exception: System.InvalidC astException: Specified cast is not
valid.
at Zadig.Products. AddProduct(XmlN ode node) in C:\Documents and
Settings\mlubra no\My Documents\Visua l Studio
Projects\Zadig\ Products.vb:lin e
239
at Zadig.Products. bttnAdd_Click(O bject sender, EventArgs e) in
C:\Documents and Settings\mlubra no\My Documents\Visua l Studio
Projects\Zadig\ Products.vb:lin e 223
at System.Windows. Forms.Control.O nClick(EventArg s e)
at System.Windows. Forms.Button.On Click(EventArgs e)
at System.Windows. Forms.Button.On MouseUp(MouseEv entArgs mevent)
at System.Windows. Forms.Control.W mMouseUp(Messag e& m, MouseButtons
button, Int32 clicks)
at System.Windows. Forms.Control.W ndProc(Message& m)
at System.Windows. Forms.ButtonBas e.WndProc(Messa ge& m)
at System.Windows. Forms.Button.Wn dProc(Message& m)
at System.Windows. Forms.ControlNa tiveWindow.OnMe ssage(Message& m)
at System.Windows. Forms.ControlNa tiveWindow.WndP roc(Message& m)
at System.Windows. Forms.NativeWin dow.DebuggableC allback(IntPtr hWnd,
Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows. Forms.UnsafeNat iveMethods.Disp atchMessageW(MS G& msg)
at
System.Windows. Forms.Component Manager.System. Windows.Forms.U nsafeNativeMeth ods+IMsoCompone ntManager.FPush MessageLoop(Int 32
dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows. Forms.ThreadCon text.RunMessage LoopInner(Int32 reason,
ApplicationCont ext context)
at System.Windows. Forms.ThreadCon text.RunMessage Loop(Int32 reason,
ApplicationCont ext context)
at System.Windows. Forms.Applicati on.Run(Form mainForm)
at Zadig.Zadig.Mai n() in C:\Documents and Settings\mlubra no\My
Documents\Visua l Studio Projects\Zadig\ Main.vb:line 3The program '[328]
Zadig.exe' has exited with code 0 (0x0).

"fremenusul " wrote:

Now I am getting this error

Additional information: Specified cast is not valid.

error begins on this line
node.AppendChil d(xmlProductNam e)

Thanks for the help.

Michae
"Sean Hederman" wrote:

> Whoops! That was silly, rather do:
> AddProduct(xmlD oc.ChildNodes(0 ))
> It'll be faster than using XPath.
>
> "fremenusul " <fr********@dis cussions.micros oft.com> wrote in message
> news:79******** *************** ***********@mic rosoft.com...
> >I know I have been asking LOTS of xml questions and I really
> >apprecaite all
> > the help.
> >
> > Here is my XML file
> > <?xml version="1.0" encoding="utf-8" ?>
> >
> > <products>
> > <!-- Repeat the structure below for each product. -->
> > <product>
> > <id>CP-90, T-32</id>
> > <company>Carwel l</company>
> > <address>Stre et Address</address>
> > <city>City</city>
> > <state>State</state>
> > <zip>Zip</zip>
> > </product>
> >
> > <!-- Next product here-->
> > </products>
> >
> >
> > I am loading the doc in memory using xmlDocument
> > Dim xmlFile As String = xmlLocation()
> > Dim xmlDoc As XmlDocument
> >
> > Private Sub Products_Load(B yVal sender As System.Object, ByVal e
> > As
> > System.EventArg s) Handles MyBase.Load
> > xmlDoc = New XmlDocument
> > xmlDoc.Load(xml File)
> >
> >
> > End Sub
> >
> > Here is when my problem starts. I have a form with all the
> > information
> > that
> > I needed "appended" to the XMLdoc (in memory). I tried
> >
> > Private Sub AddProduct(ByVa l node As XmlNode)
> > Dim xmlProductName = txtProduct.Text
> > Dim xmlCompanyName = txtCompany.Text
> > Dim xmlAddress = txtAddress.Text
> > Dim xmlCity = txtCity.Text
> > Dim xmlState = cmboState.Text
> > Dim xmlZip = txtZip.Text
> > node.AppendChil d(xmlProductNam e)
> > node.AppendChil d(xmlCompanyNam e)
> > node.AppendChil d(xmlAddress)
> > node.AppendChil d(xmlCity)
> > node.AppendChil d(xmlState)
> > node.AppendChil d(xmlZip)
> > End Sub
> >
> > But I am really confused on what node to pass. Any help would be
> > apprciated.
>
>
>