XPath関数はnet framewokでは機能しませんが、SQLクエリで動作します

Question

次のXMLと、SQL Server 2008でうまく動作するクエリがありますが、ConcatとSubstringという同じノードを選択すると失敗します。XmlDocumentオブジェクトC＃。

何が問題になりますか？

declare @x xml='<asn> 
     <asnH> 
     <senderId>9053357373T</senderId> 
     <pono>SCA0055792</pono> 
     <dino>440229</dino> 
     <shipmentWeight>1109</shipmentWeight> 
     <loadingQty>190</loadingQty>di 
     <zWeight>1109</zWeight> 
     </asnH> 
     <dd> 
     <COMNO>010</COMNO> 
     <T_x0024_ORNO>910055</T_x0024_ORNO> 
     <T_x0024_CFRW>UP1</T_x0024_CFRW> 
     <T_x0024_TRNO>abc-12345      </T_x0024_TRNO> 
     <T_x0024_DINO>440229</T_x0024_DINO> 
     <T_x0024_ITEM>  817025-001</T_x0024_ITEM> 
     <T_x0024_PONO>1</T_x0024_PONO> 
     <T_x0024_DDAT>2017-08-14T00:00:00-04:00</T_x0024_DDAT> 
     <T_x0024_DQUA>10</T_x0024_DQUA> 
     <T_x0024_OQUA>10</T_x0024_OQUA> 
     <T_x0024_WGHT>15</T_x0024_WGHT> 
     <T_x0024_CUPS>ea </T_x0024_CUPS> 
     <T_x0024_TRID>66085</T_x0024_TRID> 
     <lWeight>150</lWeight> 
     </dd> 
    </asn>' 

    select 
     t.c.query('concat(substring(asn[1]/asnH[1]/senderId[1],1,5),asn[1]/asnH[1]/dino[1])') 
    from 
     @x.nodes('.') t(c) 

Answer 1

これは私が結果を与える：90533440229

string xml = @"<asn> 
    <asnH> 
    <senderId>9053357373T</senderId> 
    <pono>SCA0055792</pono> 
    <dino>440229</dino> 
    <shipmentWeight>1109</shipmentWeight> 
    <loadingQty>190</loadingQty>di 
    <zWeight>1109</zWeight> 
    </asnH> 
    <dd> 
    <COMNO>010</COMNO> 
    <T_x0024_ORNO>910055</T_x0024_ORNO> 
    <T_x0024_CFRW>UP1</T_x0024_CFRW> 
    <T_x0024_TRNO>abc-12345      </T_x0024_TRNO> 
    <T_x0024_DINO>440229</T_x0024_DINO> 
    <T_x0024_ITEM>  817025-001</T_x0024_ITEM> 
    <T_x0024_PONO>1</T_x0024_PONO> 
    <T_x0024_DDAT>2017-08-14T00:00:00-04:00</T_x0024_DDAT> 
    <T_x0024_DQUA>10</T_x0024_DQUA> 
    <T_x0024_OQUA>10</T_x0024_OQUA> 
    <T_x0024_WGHT>15</T_x0024_WGHT> 
    <T_x0024_CUPS>ea </T_x0024_CUPS> 
    <T_x0024_TRID>66085</T_x0024_TRID> 
    <lWeight>150</lWeight> 
    </dd> 
</asn>"; 

XmlDocument xmlDocument = new XmlDocument(); 
xmlDocument.InnerXml = xml; 
XmlNode root = xmlDocument.DocumentElement; 
string xpath = "concat(substring(asn[1]/asnH[1]/senderId[1],1,5),asn[1]/asnH[1]/dino[1])"; 
string s = root.ParentNode.CreateNavigator().Evaluate(xpath).ToString(); 
Console.WriteLine(s);