如果选择单个节点为空，则创建单个节点

发布于 2025-01-03 13:07:06 字数 838 浏览 1 评论 0原文

我有一个更新配置文件的程序。例如，配置文件可能包含：

<configuration>
  <userSettings>
    <setting name="phoneNumber" serializeAs="String">
      <value>123-456-7890</value>
    </setting>
  </userSettings>
</configuration>

要更新此配置文件，我使用以下命令：

XmlNode phoneNumberNode = theConfig.SelectSingleNode("configuration/userSettings/setting[@name='phoneNumber']");
phoneNumberNode.FirstChild.InnerText = this._cloudPublisherWebURL;

现在，在更新过程中我想更新电话号码和地址。地址可能存在于配置文件中，也可能不存在。

如果 SelectSingleNode 为 null，我想创建一个具有给定路径的节点并设置其值。

XmlNode addressNode = theConfig.SelectSingleNode("configuration/userSettings/setting[@name='address']");
if(addressNode == null)
{
  //..Create the node here
}

如何在给定路径上创建具有值的节点？

原文

I have a program that updates a config file. For example, the config file may contain:

<configuration>
  <userSettings>
    <setting name="phoneNumber" serializeAs="String">
      <value>123-456-7890</value>
    </setting>
  </userSettings>
</configuration>

To update this config file, I use the following:

XmlNode phoneNumberNode = theConfig.SelectSingleNode("configuration/userSettings/setting[@name='phoneNumber']");
phoneNumberNode.FirstChild.InnerText = this._cloudPublisherWebURL;

Now, during the update I want to update phoneNumber and address. Address may or may not be in the config file.

If SelectSingleNode is null, I would like to create a node with the given path and set its value.

XmlNode addressNode = theConfig.SelectSingleNode("configuration/userSettings/setting[@name='address']");
if(addressNode == null)
{
  //..Create the node here
}

How can I create the node with value at the given path?

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匿名的好友 2025-01-10 13:07:06

XmlNode addressNode = theConfig.SelectSingleNode("configuration/userSettings");
XmlNode setting = addressNode.Item(0).SelectSingleNode("configuration/userSettings/setting[@name='phoneNumber']");

setting.SetAttribute("name", "address"); //this is to change the name attribute value into address

XmlNode addressNode = theConfig.SelectSingleNode("configuration/userSettings");
XmlNode setting = addressNode.Item(0).SelectSingleNode("configuration/userSettings/setting[@name='phoneNumber']");

setting.SetAttribute("name", "address"); //this is to change the name attribute value into address

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