C# 替换 Xml 节点/元素的内部文本
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Replacing the innertext of an Xml node/element
提问by Marshal
First of all this is C#. I am creating a internet dashboard for a small group of colleages in the NHS. Below is an example xml file in which I need to change the innertext of. I need to replace a specific element for example "Workshop1." Because we have a few workshops I cannot afford to use a general writer because it will replace all the information on the XML document with this one bit of code below.
首先这是C#。我正在为 NHS 的一小群大学创建一个互联网仪表板。下面是一个示例 xml 文件，我需要在其中更改内部文本。我需要替换特定元素，例如“Workshop1”。因为我们有一些研讨会，所以我不能使用一般的编写器，因为它将用下面的这一位代码替换 XML 文档上的所有信息。
<?xml version="1.0" ?>
<buttons>
<workshop1>hello</workshop1>
<url1>www.google.co.uk</url1>
I am using a switch case to select a specific workshop where you can change the name and add a URL of the workshop and using this code below will replace the whole document.
我正在使用 switch case 来选择一个特定的研讨会，您可以在其中更改名称并添加研讨会的 URL，使用下面的此代码将替换整个文档。
public void XMLW()
{
XmlTextReader reader = new XmlTextReader("C:\myXmFile.xml");
XmlDocument doc = new XmlDocument();
switch (comboBox1.Text)
{
case "button1":
doc.Load(reader); //Assuming reader is your XmlReader
doc.SelectSingleNode("buttons/workshop1").InnerText = textBox1.Text;
reader.Close();
doc.Save(@"C:\myXmFile.xml");
break;
}
}
So just to clarify I want my C# program to search through the XML document find the element "Workshop1" and replace the innertext with text from a textBox. and be able to save it without replacing the whole document with one node. Thanks for looking.
所以只是为了澄清我希望我的 C# 程序搜索 XML 文档，找到元素“Workshop1”并用 textBox 中的文本替换内部文本。并且能够保存它而无需用一个节点替换整个文档。谢谢你看。
采纳答案by Amar Palsapure
Using XmlDocumentand XPath you can do this
使用XmlDocument和 XPath 你可以做到这一点
XmlDocument doc = new XmlDocument();
doc.Load(reader); //Assuming reader is your XmlReader
doc.SelectSingleNode("buttons/workshop1").InnerText = "new text";
You can use doc.Saveto save the file also.
您也可以使用doc.Save来保存文件。
Read more about XmlDocumenton MSDN.
XmlDocument在MSDN上阅读更多信息。
EDIT
编辑
To save the document do this
要保存文档，请执行此操作
doc.Save(@"C:\myXmFile.xml"); //This will save the changes to the file.
Hope this helps you.
希望这对你有帮助。
