Question

<TALLYMESSAGE xmlns:UDF="TallyUDF">
 <VOUCHER>
   <ALLLEDGERENTRIES.LIST>
     <LEDGERNAME>Cellular Mobile Pte Ltd</LEDGERNAME>
     <AMOUNT>-2800000.00</AMOUNT>
   </ALLLEDGERENTRIES.LIST>
   <ALLLEDGERENTRIES.LIST>
     <LEDGERNAME>ABC Bank</LEDGERNAME>
   </ALLLEDGERENTRIES.LIST>
 </VOUCHER>
</TALLYMESSAGE>

当我写这段代码时

XmlNodeList dataNodes = xmlDoc.SelectNodes("VOUCHER");
foreach (XmlNode voucharbrandnode in dataNodes)
   {                         {
     var amount=voucharbrandnode.SelectSingleNode("AMOUNT").InnerText
   }

这显示异常，因为第二个节点中没有amount属性。任何帮助表示赞赏

Answer 1

检查节点存在。

XmlNode xmlNode = voucharbrandnode.SelectSingleNode("AMOUNT");
var amount = "";
if (xmlNode != null)
amount = xmlNode.InnerText;

Answer 2

检查节点是否存在：

if(voucharbrandnode.SelectSingleNode("//AMOUNT")!=null)

某些节点没有属性时的XML序列化

2 个答案: