c# - XDocument后代

Question

<?xml version="1.0" encoding="ISO-8859-1"?> 
<kdd>
<Table>
    <robel ID="1">
        <groof NAME="GOBS-1">
            <sintal ID="A">Cynthia1</sintal>
            <sintal ID="B">Sylvia2</sintal>
            <sintal ID="C">Sylvia3</sintal>
            <sintal ID="D">Sylvia4</sintal>
        </groof>
        <groof NAME="GOBS-2">
            <sintal ID="A">Cynthia1</sintal>
            <sintal ID="B">Cynthia2</sintal>
            <sintal ID="C">Cynthia3</sintal>
            <sintal ID="D">Cynthia4</sintal>
        </groof>
        <groof NAME="GOBS-3">
            <sintal ID="A">Daniella1</sintal>
            <sintal ID="B">Daniella2</sintal>
            <sintal ID="C">Daniella3</sintal>
            <sintal ID="D">Daniella4</sintal>
        </groof>
    </robel>
</Table> 
</kdd>

我想要 GOBS-2 的 Cynthia1。注意还有另一个来自 GOBS-1 的 Cynthia1

foreach (XElement element in doc.Descendants("groof"))
                {
                    string mmname = element.Attribute("NAME").Value.ToString();

                        if (mmname == "GOBS-2")
                        {
                            bool found = false; 
                            foreach (XElement element1 in doc.Descendants("sintal"))
                            {

                                if (found == false)
                                {
                                    string CurrentValue = (string)element1;
                                    if ("Cynthia1" == CurrentValue)
                                    {
                                        try
                                        {
                                            //do something
                                            found = true;
                                        }
                                        catch (Exception e)
                                        {
                                        }
                                    }
                                }
                            }
                        }

问题是，在它从Gobs-2找到Cynthia1之后，循环上升到Gobs-1。我认为 sintal 的第二个 foreach 有问题也许我应该使用不同的东西。我希望它在找到 Gobs-2 的信号后就停止寻找。似乎 2 foreach 不相关。各自奔跑

Answer 1

I would like to get GOBS-2's Cynthia1

您可以使用 Linq 更精确地到达那里:

XElement cynthia = doc
    .Descendants("groof")
    .Where(g => g.Attribute("NAME").Value == "GOBS-2")
    .Elements("sintal")
    .Where(s => s.Value == "Cynthia1")  // or Attribute("ID") == "A"
    .Single();