Case sensitivity in XLINQ

Question

I have the following XML

Dim xmlTreeThree = <Products>

<Product id=<%= ProductID %>>

<ProductName>Widget</ProductName>

<ProductPrice>49.99</ProductPrice>

</Product>

</Products>

xmlTreeThree.Save("products3.xml")

xmlDoc = XDocument.Load("products3.xml")

The following statement works as expected

Item = From p In xmlDoc...<Product> Where p.@id = ProductID Select p

Yet when I make the attribute id uppercase as shown next the query fails.

Item = From p In xmlDoc...<Product> Where p.@ID = ProductID Select p

So my question is, is there a way to bypass the case sensitivity mentioned above and make either work or must I insure proper casing?

Thanks,
Kevin

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KSG

Answer 1

XML is case-sensitive and so is LINQ to XML. That might not fit into VB which usually is case-insensitive but those constructs like ...<Product> or @id are simply translated into method calls like Descendants("Product") or Attribute("id").Value and there you are back to XML's case-sensitivity. Thus even with VB with LINQ to XML you have to pay attention to the case of element or attribute names.

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MVP XML

Answer 2

XML is totally case-sensitive, including element names, attribute names, entity names (general/parameterized), attribute values, text contents, etc. Please refer to http://xml.silmaril.ie/authors/case/ for more details.

Thus, you cannot bypass case sensitivity and must ensure proper casing in your code.

Answer 3

Thanks for the clarification

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KSG

Answer 4

Thanks for the clarification

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KSG