感谢一些关于如何在 XML 文件上使用 XPath 以仅提取一些数据并将其加载到数据集中的指示。
ds.ReadXml(fsReadXml);
会将整个 xml 加载到数据集中,但我的要求是仅将特定节点和值加载到数据集中。
示例 xml 数据:
<data cobdate="5 Jul 2011" DBStatus="">
<view>BOTH</view>
<show_acctnbr>true</show_acctnbr>
<summary>
<headings sum="Summary" real_per="Realized this period" real_trd="Profit/loss in trading currency" real_select="Profit/loss in selected currency" short_term="Short Term Profit/Loss" long_term="Long Term Profit/Loss" />
<account number="A123456" curr_code="USD" curr_desc="US Dollars" tradecurrvalue="123,123.00" selectcurrvalue="123,123.00" managed="NO" />
<account number="P123456" curr_code="USD" curr_desc="US Dollars" tradecurrvalue="0.00" selectcurrvalue="0.00" managed="NO" />
</summary>
<detail>
<headings dateaq="Date acquired" datesld="Date sold" desc="Description" sec_nbr="Security number " qty="Quantity" cost="Cost basis" />
<account number="A123456" currency="US Dollars">
<item datesold="29 Apr 11" sec_nbr="1234" description="SOME VALUE(USD)" quantity="8,000" proceeds="123,123.0" />
<item datesold="29 Apr 11" sec_nbr="4567" description="SOME VALUE(USD)" quantity="9,000" proceeds="123,123.0" />
</account>
<account number="P123456" currency="US Dollars">
<item datesold="29 Apr 11" sec_nbr="1234" description="SOME VALUE(USD)" quantity="8,000" proceeds="123,123.0" />
<item datesold="29 Apr 11" sec_nbr="4567" description="SOME VALUE(USD)" quantity="9,000" proceeds="123,123.00" />
</account>
</detail>
</data>
在这个示例数据中,我只需要从 <summary>
节点加载帐户,如果可能的话,只需要加载数字、交易当前值和选择当前值属性。我使用 C# 和 3.5。
最佳答案
使用 XDocument:
var doc = XDocument.Load(fileName);
var lst = doc
.Descendants("summary") // don't care where summary is
.Elements("account ") // direct child of <summary>
.Select(x => new
{
number = x.Attribute("number").Value,
...
});
foreach(var account in lst)
{
.... // add to DataSet
}
关于c# - 使用 C# 将选择性 XML 数据加载到数据集中,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6600713/