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VB.Net - How can I display my xml values to a textbox?

Posted on 2013-06-25
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Last Modified: 2016-11-23
Afternoon,

Can someone tell me what would be the code in VB.Net to display my <category> values to 4 textboxes (txtbox1, txtbox2, txtbox3, txtbox4)?

My xml file is below:

<Settings>
  <ApplicationSettings>
    <category id="Servers">
      <Brand>Dell</Brand>
      <type>New</type>
      <department>Accounting</department>
    </category>
    <category id="Printers">
      <Brand>Canon</Brand>
      <type>New</type>
      <department>Marketing</department>
    </category>
    <category id="Desktops">
      <Brand>Sony</Brand>
      <type>Used</type>
      <department>IT</department>
    </category>
    <category id="Plotters">
      <Brand>Signa</Brand>
      <type>Used</type>
      <department>Sales</department>
    </category>
  </ApplicationSettings>
</Settings>

Thanks,
N
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Question by:nobushi
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10 Comments
 
LVL 42

Expert Comment

by:Meir Rivkin
ID: 39275966
i assumed u mean category id:
        Dim categories = XElement.Load("c:\temp\1.xml").Element("ApplicationSettings").Elements("category").Select(Function(e) e.Attribute("id").Value).ToArray

        txtbox1.Text = categories(0)
        txtbox2.Text = categories(1)
        txtbox3.Text = categories(2)
        txtbox4.Text = categories(3)

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Author Comment

by:nobushi
ID: 39276005
Yes that's what i meant.

When i try this code you wrote im getting the error:

Lambda parameter 'e' hides a variable in an enclosing block, a previously defined range variable, or an implicitly declared variable in a query expression.

Any ideas as to what this means?
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LVL 42

Expert Comment

by:Meir Rivkin
ID: 39276011
        Dim categories = XElement.Load("c:\temp\1.xml").Element("ApplicationSettings").Elements("category").Select(Function(cat) cat.Attribute("id").Value).ToArray

        txtbox1.Text = categories(0)
        txtbox2.Text = categories(1)
        txtbox3.Text = categories(2)
        txtbox4.Text = categories(3)

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LVL 1

Author Comment

by:nobushi
ID: 39276024
Recieving this error now:

An unhandled exception of type 'System.IndexOutOfRangeException' occurred in MyProgram.exe
Additional information: Index was outside the bounds of the array.
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LVL 42

Expert Comment

by:Meir Rivkin
ID: 39276033
can u post the exact xml that u reading in the code?
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LVL 1

Author Comment

by:nobushi
ID: 39276056
Sedgwick, Please see attached.
settings.xml
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LVL 42

Expert Comment

by:Meir Rivkin
ID: 39276065
which line throw the error?
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LVL 1

Author Comment

by:nobushi
ID: 39276071
this line:

txtbox1.Text = categories(0)
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Accepted Solution

by:
Meir Rivkin earned 2000 total points
ID: 39276097
this error means that parsing the xml yields no category id, which is wierd cause i used the exact same code with the xml u posted and it works fine.
can u make suer the code is as posted and the xml is the one u posted?

        Dim categories = XElement.Load("c:\temp\1.xml").Element("ApplicationSettings").Elements("category").Select(Function(cat) cat.Attribute("id").Value).ToArray
if categories.Length > 0 then
        txtbox1.Text = categories(0)
        txtbox2.Text = categories(1)
        txtbox3.Text = categories(2)
        txtbox4.Text = categories(3)
end if

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Author Comment

by:nobushi
ID: 39276146
Thanks Sedgwick.

This new code worked fine.
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