Question

我正在尝试解析一个mvcSiteMap，我已经完成了大部分工作，但我的where子句不对。它总是返回where子句应该排除的行。

nodeTitle = "Bulk Order Request";

XElement xelement2 = XElement.Load( filePath );
var urlDescList1 = (xelement2.Descendants()
    // Select node with 'Favorite Social Sites'
    .Where( node => ( string ) node.Attribute( "title" ).Value != nodeTitle )
    .SelectMany( node => node.Elements() )
    .Select( node => new
    {
        title = node.Attribute( "title" ).Value,
        url = node.Attribute( "action" ).Value
    } )).ToList();

无论where子句是否存在，我都会返回相同数量的行。它就像where子句总是为true，即使输出的lsit的title元素包含“Bulk Order Request”作为其'title

我确定我做了一些Obvioulsy愚蠢的事，但我看不到它。

谢谢，

埃里克 -

XML

<?xml version="1.0" encoding="utf-8" ?>
<siteMap xmlns="http://mvcsitemap.codeplex.com/schemas/MvcSiteMap-File-1.0">
    <mvcSiteMapNode title="Home" controller="Home" action="Index" isDynamic="true" dynamicParameters="*" >
        <mvcSiteMapNode title="Home" controller="RunWebForm" action="DisplayPage/~-Scout_Main-HelloPage.aspx" roles="*" />
        <mvcSiteMapNode title="Inbond Call" controller="RunWebForm" action="DisplayPage/~-Scout_HandleCall-StartCall.aspx" roles="*" />
        <mvcSiteMapNode title="Reports" controller="NoController" action="NoAction/80" roles="*" >
            <mvcSiteMapNode title="Activity By Type" controller="Reports" action="ActivityByType" roles="*" />
            <mvcSiteMapNode title="Activity By Agent" controller="Reports" action="ActivityByAgent" roles="*" />
            <mvcSiteMapNode title="Activity By Language" controller="Reports" action="ActivityByLang" roles="*" />
            <mvcSiteMapNode title="Complaints" controller="Reports" action="ComplaintReport" roles="*" />
          <mvcSiteMapNode title="Volume by Date Time" controller="Reports" action="VolumeByDateTime" roles="*" />
          <mvcSiteMapNode title="Activity By Gender" controller="Reports" action="CallPersonActivityByGenderReport" roles="*" />
          <mvcSiteMapNode title="Prospects by Age" controller="Reports" action="ActivitybyProspectsbyAge" roles="*" />
          <mvcSiteMapNode title="Prospects by Ethnicity" controller="Reports" action="ActivitybyEthnicity" roles="*" />
          <mvcSiteMapNode title="Prospects by Gender" controller="Reports" action="ActivitybyGender" roles="*" />
          <mvcSiteMapNode title="Prospects by Language" controller="Reports" action="ActivitybyLanguage" roles="*" />
          <mvcSiteMapNode title="Activity by Referral Source" controller="Reports" action="ActivitybyReferralSource" roles="*" />
        </mvcSiteMapNode>
        <mvcSiteMapNode title="Fullfillment letter" controller="NoController" action="NoAction/9" roles="*" >
            <mvcSiteMapNode title="Bulk Order Request" controller="Reports" action="ActivityByBulkOrderRequest" roles="*" />
            <mvcSiteMapNode title="Letter English" controller="Reports" action="LetterEnglish" roles="*" />
            <mvcSiteMapNode title="Letter English - General Inquiry" controller="Reports" action="LetterEnglishForGeneralInquiry" roles="*" />
        </mvcSiteMapNode>
        <mvcSiteMapNode title="Maintenance" description="Maintenance" controller="NoController" action="NoAction/11" roles="4048">
            <mvcSiteMapNode controller="RunWebForm" action="DisplayPage/~-Scout_Main-Administration-MaintainScripts.aspx" title="Maintain Call Scripts "  description="Maintain Call Scripts" roles="4048"/>
            <mvcSiteMapNode controller="RunWebForm" action="DisplayPage/~-Scout_Main-Administration-MediaTypeMaintain.aspx" title="Maintain Media Items "  description="Maintain Media Items" roles="4048"/>
            <mvcSiteMapNode controller="RunWebForm" action="DisplayPage/~-Scout_Main-Administration-CallMainSource.aspx" title="Maintain Call Main Sources "  description="Maintain Call Main Sources" roles="4048"/>
            <mvcSiteMapNode controller="RunWebForm" action="DisplayPage/~-Scout_Main-Administration-CallSecondarySource.aspx" title="Maintain Call Secondary Sources "  description="Maintain Call Secondary Sources" roles="4048"/>
            <mvcSiteMapNode controller="RunWebForm" action="DisplayPage/~-Scout_Main-Administration-CallOtherLanguage.aspx" title="Maintain Additional Languages"  description="Maintain Additional Languages" roles="4048"/>
        </mvcSiteMapNode>
        <mvcSiteMapNode controller="Account" action="Logon" title="Logout" description="Logout and return to the login screen" roles="*" />
        </mvcSiteMapNode>
</siteMap>

Answer 1

重写了非lambda工作正常

            XElement xelement2 = XElement.Load( filePath );

            var query = from c in xelement2.Descendants()
            where (string)c.Attribute("title").Value != nodeTitle 
            select c;

Linq到Xml noob的问题

1 个答案: