XmlDocument.CreateWhitespace(String) 方法
定义
创建一个 XmlWhitespace 节点。Creates an XmlWhitespace node.
public:
virtual System::Xml::XmlWhitespace ^ CreateWhitespace(System::String ^ text);
public virtual System.Xml.XmlWhitespace CreateWhitespace (string text);
public virtual System.Xml.XmlWhitespace CreateWhitespace (string? text);
abstract member CreateWhitespace : string -> System.Xml.XmlWhitespace
override this.CreateWhitespace : string -> System.Xml.XmlWhitespace
Public Overridable Function CreateWhitespace (text As String) As XmlWhitespace
参数
- text
- String
此字符串只能包含下列字符:、
、
 和 	The string must contain only the following characters  and 	
返回
一个新的 XmlWhitespace 节点。A new XmlWhitespace node.
示例
下面的示例将空白添加到文档中。The following example adds white space to the document.
#using <System.Xml.dll>
using namespace System;
using namespace System::Xml;
int main()
{
XmlDocument^ doc = gcnew XmlDocument;
doc->LoadXml( "<author><first-name>Eva</first-name><last-name>Corets</last-name></author>" );
Console::WriteLine( "InnerText before..." );
Console::WriteLine( doc->DocumentElement->InnerText );
// Add white space.
XmlNode^ currNode = doc->DocumentElement;
XmlWhitespace^ ws = doc->CreateWhitespace( "\r\n" );
currNode->InsertAfter( ws, currNode->FirstChild );
Console::WriteLine();
Console::WriteLine( "InnerText after..." );
Console::WriteLine( doc->DocumentElement->InnerText );
}
using System;
using System.Xml;
public class Sample {
public static void Main() {
XmlDocument doc = new XmlDocument();
doc.LoadXml("<author>" +
"<first-name>Eva</first-name>"+
"<last-name>Corets</last-name>" +
"</author>");
Console.WriteLine("InnerText before...");
Console.WriteLine(doc.DocumentElement.InnerText);
// Add white space.
XmlNode currNode=doc.DocumentElement;
XmlWhitespace ws = doc.CreateWhitespace("\r\n");
currNode.InsertAfter(ws, currNode.FirstChild);
Console.WriteLine();
Console.WriteLine("InnerText after...");
Console.WriteLine(doc.DocumentElement.InnerText);
}
}
Option Explicit
Option Strict
Imports System.Xml
Public Class Sample
Public Shared Sub Main()
Dim doc As New XmlDocument()
doc.LoadXml("<author>" & _
"<first-name>Eva</first-name>" & _
"<last-name>Corets</last-name>" & _
"</author>")
Console.WriteLine("InnerText before...")
Console.WriteLine(doc.DocumentElement.InnerText)
' Add white space.
Dim currNode as XmlNode = doc.DocumentElement
Dim ws As XmlWhitespace = doc.CreateWhitespace(ControlChars.CrLf)
currNode.InsertAfter(ws, currNode.FirstChild)
Console.WriteLine()
Console.WriteLine("InnerText after...")
Console.WriteLine(doc.DocumentElement.InnerText)
End Sub
End Class
注解
此方法是文档对象模型 (DOM) 的 Microsoft 扩展。This method is a Microsoft extension to the Document Object Model (DOM). 如果要手动设置文档格式,则可以使用此方法。It is used when you want to manually format your document.
尽管此方法会在文档的上下文中创建新的对象,但它不会自动将新对象添加到文档树。Although this method creates the new object in the context of the document, it does not automatically add the new object to the document tree. 若要添加新的对象,则必须显式调用某个节点插入方法。To add the new object, you must explicitly call one of the node insert methods.