c# - XPathResultType 定义错误？

Question

.NET 框架中 XPathResultType 枚举的定义为“String”提供了与“Navigator”相同的值 (1)。这肯定是不对的吧？给出了什么？

我正在实现一些自定义 XPath 函数，并且我正在尝试编写一个方法来根据每个参数声明的 XPathResultType 来验证函数的参数。然而，我对如何应对这种重叠感到困惑......

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#region Assembly System.Xml.dll, v4.0.30319
// C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Xml.dll
#endregion

using System;

namespace System.Xml.XPath
{
    // Summary:
    //     Specifies the return type of the XPath expression.
    public enum XPathResultType
    {
        // Summary:
        //     A numeric value.
        Number = 0,
        //
        // Summary:
        //     A System.String value.
        String = 1,
        //
        // Summary:
        //     A tree fragment.
        Navigator = 1,
        //
        // Summary:
        //     A System.Booleantrue or false value.
        Boolean = 2,
        //
        // Summary:
        //     A node collection.
        NodeSet = 3,
        //
        // Summary:
        //     Any of the XPath node types.
        Any = 5,
        //
        // Summary:
        //     The expression does not evaluate to the correct XPath type.
        Error = 6,
    }
}

Answer 1

Microsoft Connect 上有一个已解决的问题:https://connect.microsoft.com/VisualStudio/feedback/details/97578/both-xpathresulttype-string-and-xpathresulttype-navigator-are-1

微软的答复:

The overlapping enum values is a known issue. The workaround is to never use the XPathResultType.Navigator value and to always use XPathResultType.NodeSet.