Parsing error when nullable elements with empty value and "xsi:nil"=true attribute

[sloncho]

It appears that the generated code for nullable property getter only inspects if the element exists. It fails when the element exists with attribute "xsi:nil"=true.

Example:
xsd: <xsd:element name="createDate" type="xsd:dateTime" minOccurs="0" nillable="true" />

Incoming xml:

<someType xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
      <createDate xsi:nil="true"/>
 </someType>

When accessing the generated createDate property, it throws, as it finds the element, and tries to parse the empty value to DateTime.

As XDocument/XElement are not schema-aware, I'm not even sure which approach for solving this will be more appropriate - inspecting for the nil=true, or using the XElement.IsEmpty to detect the null value.

[hieu-informatics]

Do you have any update for this serious bug? I suppose GetElement should apply the same check on nil attribute as done for SetElement.

    internal void SetElement(XName name, object value, bool addToExisting, XmlSchemaDatatype datatype, Type elementBaseType)
    {
        XElement untyped = GetUntyped();
        CheckXsiNil(untyped);
...

    private void CheckXsiNil(XElement parentElement)
    {
        XAttribute xAttribute = parentElement.Attributes(XName.Get("nil", "http://www.w3.org/2001/XMLSchema-instance")).FirstOrDefault();
        if (xAttribute != null && xAttribute.Value == "true")
        {
            xAttribute.Remove();
        }
    }

[hieu-informatics]

@mamift Do you have some plan for this bug fix?

[mamift]

https://www.nuget.org/packages/LinqToXsdCore/3.4.3
https://www.nuget.org/packages/XObjectsCore/3.4.3