XmlTextWriter Can Produce Invalid XML

XmlTextWriter is .NET’s class for writing XML in a forward-only streaming manner. It is highly efficient and is the preferred way to generate XML in .NET in most circumstances. I find XmlTextWriter so useful I wrote a partial C++ implementation of it in Implenting IXmlWriter Series.

Unfortunately, XmlTextWriter isn’t quite as strict as it could be. It will let slip some invalid XML such as duplicate attributes, invalid Unicode characters in the range 0×0 to 0×20, and invalid element and attribute names. You can read about XmlTextWriter’s limitations in the article Customized XML Writer Creation.

If these limitations are an issue for you, I suggest following the instructions in “Customized XML Writer Creation” by writing a custom writer that extends the current XmlTextWriter and adds this functionality. This class can be used directly or passed to any functions which are designed to use XmlTextWriter.

About Steven Engelhardt, CFA, AIF
Adjunct Professor of Software Engineering at DePaul University • Software Engineering, Data & Analytics in FinTech • Lives in Chicago, IL

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

w

Connecting to %s