xml-nil | 易学教程

What does i:nil=“true” mean?

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I have an xml and it has nodes with i:nil="true" in it. What does that mean? For example: <FirstName i:nil="true" /> Does that mean something different than: <FirstName /> If so, what is the difference? This means FirstName is null <FirstName i:nil="true" /> This means FirstName = "" <FirstName /> Assumption made on FirstName is of string type. Maybe i:nil actually means xsi:nil , this means that the FirstName element is empty, i.e. does not have any content -- not even "" . It refers to the nillable property in XML Schema. nil is an attribute, defined in the i namespace. For this FirstName

What does i:nil=“true” mean?

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问题 I have an xml and it has nodes with i:nil="true" in it. What does that mean? For example: <FirstName i:nil="true" /> Does that mean something different than: <FirstName /> If so, what is the difference? 回答1: This means FirstName is null <FirstName i:nil="true" /> This means FirstName = "" <FirstName /> Assumption made on FirstName is of string type. 回答2: Maybe i:nil actually means xsi:nil , this means that the FirstName element is empty, i.e. does not have any content -- not even "" . It

Can XmlSerializer deserialize into a Nullable<int>?

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问题 I wanted to deserialize an XML message containing an element that can be marked nil="true" into a class with a property of type int? . The only way I could get it to work was to write my own NullableInt type which implements IXmlSerializable . Is there a better way to do it? I wrote up the full problem and the way I solved it on my blog. 回答1: I think you need to prefix the nil="true" with a namespace in order for XmlSerializer to deserialise to null. MSDN on xsi:nil <?xml version="1.0"

What is the correct way to represent null XML elements?

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I have seen null elements represented in several ways: The element is present with xsi:nil="true" : <book> <title>Beowulf</title> <author xsi:nil="true"/> </book> The element is present, but represented as an empty element (which I believe is wrong since 'empty' and null are semantically different): <book> <title>Beowulf</title> <author/> </book>  <book> <title>Beowulf</title> <author></author> </book> The element is not present at all in the returned markup : <book> <title>Beowulf</title> </book> The element has a <null/> child element (from TStamper below): <book> <title>Beowulf<