Question

我有一个xml文档，如下所示：

<customerList>
<customerRecord>
    <customerName>David</customerName>
    <customerAge>25</customerAge>
    <customerAddress>1, Walking Street, 3000 Las Vegas</customerAddress>
    <customerPIC>
        <picList>
            <picName>Rose</picName>
            <picPosition>supervisor</picPosition>
            <idType>1</idType>
            <idNumber>90001000</idNumber>
        </picList>
        <picList>
            <picName>James</picName>
            <picPosition>supervisor</picPosition>
            <idType>2</idType>
            <idNumber>90002000</idNumber>
        </picList>
    </customerPIC>
    <customerCompany>Facebook</customerCompany>
</customerRecord>
    <customerRecord>
    <customerName>Carrie</customerName>
    <customerAge>25</customerAge>
    <customerAddress>2, Dancing Road, 2000 New Mexico</customerAddress>
    <customerPIC>
        <picList>
            <picName>Maisie</picName>
            <picPosition>secretary</picPosition>
            <idType>1</idType>
            <idNumber>90003000</idNumber>
        </picList>
        <picList>
            <picName>John</picName>
            <picPosition>HR</picPosition>
            <idType>2</idType>
            <idNumber>90004000</idNumber>
        </picList>
    </customerPIC>
    <customerCompany>Uber</customerCompany>
</customerRecord>
    <customerRecord>
    <customerName>Dexter</customerName>
    <customerAge>25</customerAge>
    <customerAddress>3, Hugging Street, 3000 New Orleans</customerAddress>
    <customerPIC>
        <picList>
            <picName>Jill</picName>
            <picPosition>PA</picPosition>
            <idType>1</idType>
            <idNumber>90005000</idNumber>
        </picList>
        <picList>
            <picName>Alex</picName>
            <picPosition>supervisor</picPosition>
            <idType>2</idType>
            <idNumber>90006000</idNumber>
        </picList>
    </customerPIC>
    <customerCompany>Google</customerCompany>
</customerRecord>

简而言之，我想比较每个customerRecord中每个picList的每个idNumber，再次将picString =“ 90001000”。由于在每个客户记录中将有两个picList，因此如果这些idNumber中的任何一个都不等于picString。我需要删除该customerRecord。

目前，我正在使用如下代码。由于picString可以位于两个picList中的任何一个中，因此我一直在思考如何进行比较，而不必冒险删除每个客户记录。

string picString = "90001000";

foreach (XmlNode customerRecord in customerList)
{
    XmlNode customerPIC = customerRecord.SelectSingleNode("//pic:customerPIC", nsManager);

    foreach (XmlNode picList in customerPIC)
    {
    XmlNode idNumber = picList.SelectSingleNode("//pic:idNumber", nsManager);
    string idNumberString = idNumberString.InnerText;

    if (idNumberString != picString)
        customerRecord.RemoveAll();
    }
}

谢谢

Answer 1

我将使用一个标志来确定是否找到了一个等于“ 90001000”的picString。

string picString = "90001000";

foreach (XmlNode customerRecord in customerList)
{
    XmlNode customerPIC = customerRecord.SelectSingleNode("//pic:customerPIC", nsManager);

    //let's consider the picstring wasn't found by default, for each customerRecord.
    bool isPicStringFound = false;

    foreach (XmlNode picList in customerPIC)
    {
        XmlNode idNumber = picList.SelectSingleNode("//pic:idNumber", nsManager);
        string idNumberString = idNumberString.InnerText;

        if (idNumberString == picString)
            isPicStringFound = true; //we found it ! no need to delete
    }
    //no picString found ? delete !
    if (!isPicStringFound)
        customerRecord.RemoveAll();
    //at next loop, the flag will be reset
}

迭代每个元素的子元素并比较内部文本

1 个答案: