How to validate an XML document?

Question

My C#/.NET application reads XML files that are manually edited by the users. The allowed elements and tags are described in the application's documentation. I'm using LINQ to extract data from the XML file.

Before extracting data from the XML file, I'd like to validate it to see if it has the expected structure. If not, it would be nice to have information about what is wrong so that I can give some feeback to the user.

What's the simplest way to do this in C#?

score 9 · Accepted Answer · edited Jun 20 '20 at 09:12

9

You can validate xml files against XSD.

First you have to create Xml Schema Definition file. See example
use XML Schema Definition Tool to create XSD from XMLfile
Use this code to validate input XML using corresponding XSD

Hope this will help...

EDIT

This article explains all possible ways to validate xml, using C#
How To Validate an XML Document by Using DTD, XDR, or XSD in Visual C# .NET

IMO best option is to use XSD.

edited Jun 20 '20 at 09:12

Community

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answered Aug 12 '10 at 06:59

Sandeep Kumar M

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...and depending on the editor you users are using, they may even be able to get Intellisense when editing the XML file when the XSD is available. – Lucero Aug 12 '10 at 07:02
this should be enough to get me started. Thanks a lot! – geschema Aug 12 '10 at 07:24
`XmlValidatingReader` in the example code (step 3) is deprecated according to .NET 4.0 and possibly earlier. – JYelton Aug 19 '10 at 22:37

score 0 · Answer 2 · answered Aug 12 '10 at 06:58

0

Validating Input Xml Data Files

answered Aug 12 '10 at 06:58

Pranay Rana

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How to validate an XML document?

2 Answers2

EDIT

Linked