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How to distinguish whether the data from database text field is an XML or Text file ?

Posted on 2005-03-31
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Last Modified: 2010-04-23

Hi,

I have a column in  SQL-Server 2000 database as (Text) field. I can store any type of file (Possibilly two Text & XML). Now with VB.NET code, i want to know whether the data is XML file or Text file !!

Can you suggest me the way to do it ?

Thanks,
Kishore
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Question by:kishore_peddi
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wyoung76 earned 1000 total points
ID: 13677606
Assuming that it's text XML, then my suggestion is to run an XML validation on the field to test for "XML-ness" or not.  This could be as naive as doing:

    Dim xd As System.Xml.XmlDocument
    Try
        ' succeeds if it's validating XML
        xd = New System.Xml.XmlDocument.LoadXml(loadedText)
    Catch e As XmlException
        ' it isn't validating XML
    End Try

Of course, this abuses the exception handling system  ;o)
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