PRB: You Receive XmlTextReader Error Message When Colon Appears in Processing Instruction (318351)

RESOLUTION

To work around this problem, do one of the following:

Do not use colon in the processing instruction. Instead, use a hyphen. Both Microsoft and W3C recommend this method:
```
<?xml:stylesheet ...?> should be changed to <?xml-stylesheet ...?> 
						
```
For more information about the W3C recommendation, browse to the following W3C Web site:
http://www.w3.org/TR/xml-stylesheet/
If you cannot change the XML, turn off the namespace on XmlTextReader before you read the XML, and then set the namespace back to its original value after you finish reading:
```
//before calling read, set 
XmlTextReader.Namespace = false 

//after you have read, set 
XmlTextReader.Namespaces=true
					
```

MORE INFORMATION

Steps to Reproduce Behavior

Open Microsoft Visual Studio .NET.
Create a new Windows application in Microsoft Visual Basic .NET. Form1 is added to the project by default.
Place a Command button on Form1. Change the Name property of the button to btnTest.
Use the Imports statement on the System.Xml namespaces, so that you are not required to qualify declarations in those namespaces later in your code. Add the following code to the "General Declarations" section of Form1:
```
Imports System.Xml
					
```

Copy and paste the following code in the btnTest_Click event:

        Try
            Dim reader As New XmlTextReader("c:\textr.xml")
            While reader.Read()
                If reader.NodeType = XmlNodeType.Element Then
                    MessageBox.Show(reader.Name)
                End If
            End While
        Catch ex As Exception
            MessageBox.Show(ex.Message())
        End Try

Copy and paste the following XML into Notepad, and then save the file as Textr.xml in your C: root directory:

<?xml:stylesheet type="text/xsl" href="test.xsl"?>
<xml>
<library>
  <book genre='novel' ISBN='1-861001-57-5'>
     <title>Pride And Prejudice</title>
  </book>
  <book genre='novel' ISBN='1-81920-21-2'>
     <title>Hook</title>
  </book>
</library> 
</xml>

Save the project, and then run the project.
Click btnTest, and then notice the error message.

Open Textr.xml, and then modify the following line:

<?xml:stylesheet type="text/xsl" href="test.xsl"?>

to the following:

<?xml-stylesheet type="text/xsl" href="test.xsl"?>

Save the XML file, and then run the project.
Click btnTest, and then notice the element names.

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