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FIX: The XmlTextReader class generates a runtime exception when you read an XML documentArticle ID: 818777 - View products that this article applies to. SYMPTOMSWhen you use the XmlTextReader class to read an XML document, you may receive the following
runtime exception error message: Value must be positive.
Parameter name: startIndex at System.Text.StringBuilder.Append(Char[] value, Int32 startIndex, Int32 charCount) at System.Xml.XmlTextReader.ParseXmlDecl() at System.Xml.XmlTextReader.ParseTag() at System.Xml.XmlTextReader.ParseRoot() at System.Xml.XmlTextReader.Read() CAUSEThis problem occurs if there is a delay when the XmlTextReader class reads an XML document from a Stream object. RESOLUTIONA supported hotfix
is now available from Microsoft, but it is only intended to correct the problem
that is described in this article. Only apply it to systems that are
experiencing this specific problem. This hotfix may receive additional testing.
Therefore, if you are not severely affected by this problem, we recommend that
you wait for the next Microsoft .NET Framework 1.1 service pack that contains
this hotfix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site: http://support.microsoft.com/contactus/?ws=support Note In special cases, charges that are ordinarily incurred for
support calls may be canceled if a Microsoft Support Professional determines
that a specific update will resolve your problem. The usual support costs will
apply to additional support questions and issues that do not qualify for the
specific update in question. The English
version of this hotfix has the file attributes (or later) that are listed in
the following table. The dates and times for these files are listed in
coordinated universal time (UTC). When you view the file information, it is
converted to local time. To find the difference between UTC and local time, use
the Time Zone tab in the Date and Time tool in Control Panel.
(http://support.microsoft.com/contactus/?ws=support)
Date Time Version Size File Name Platform ------------------------------------------------------------------------------------------ 18-Apr-2003 20:01 1.1.4322.902 1335296 System.XML.dll x86 WORKAROUNDTo work around this problem, use a Stream object with the XmlTextReader class. If you do this, read delays do not occur. STATUSMicrosoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section. REFERENCESFor more information, visit the following Microsoft
Developer Network (MSDN) Web sites: XmlTextReader class http://msdn2.microsoft.com/en-us/library/system.xml.xmltextreader(vs.71).aspx
(http://msdn2.microsoft.com/en-us/library/system.xml.xmltextreader(vs.71).aspx)
HttpWebResponse class http://msdn2.microsoft.com/en-us/library/system.net.httpwebresponse(vs.71).aspx
(http://msdn2.microsoft.com/en-us/library/system.net.httpwebresponse(vs.71).aspx)
PropertiesArticle ID: 818777 - Last Review: May 12, 2007 - Revision: 2.2
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