XmlConvert.EncodeName(String) Method

Reference

Definition

Namespace:: System.Xml

Assemblies:: System.Xml.dll, System.Xml.ReaderWriter.dll

Assemblies:: netstandard.dll, System.Xml.ReaderWriter.dll

Assembly:: System.Xml.ReaderWriter.dll

Assembly:: System.Xml.dll

Assembly:: netstandard.dll

Source:: XmlConvert.cs

Source:: XmlConvert.cs

Source:: XmlConvert.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Converts the name to a valid XML name.

public:
 static System::String ^ EncodeName(System::String ^ name);

public static string EncodeName(string name);

public static string? EncodeName(string? name);

static member EncodeName : string -> string

Public Shared Function EncodeName (name As String) As String

Parameters

name: String

A name to be translated.

Returns

String

The name with any invalid characters replaced by an escape string.

Examples

The following example encodes and decodes names.

#using <System.dll>
#using <System.XML.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   
   // Encode and decode a name with spaces.
   String^ name1 = XmlConvert::EncodeName( "Order Detail" );
   Console::WriteLine( "Encoded name: {0}", name1 );
   Console::WriteLine( "Decoded name: {0}", XmlConvert::DecodeName( name1 ) );
   
   // Encode and decode a local name.
   String^ name2 = XmlConvert::EncodeLocalName( "a:book" );
   Console::WriteLine( "Encoded local name: {0}", name2 );
   Console::WriteLine( "Decoded local name: {0}", XmlConvert::DecodeName( name2 ) );
}

using System;
using System.IO;
using System.Xml;

public class Sample
{

  public static void Main()
  {

     // Encode and decode a name with spaces.
     string name1 = XmlConvert.EncodeName("Order Detail");
     Console.WriteLine("Encoded name: " + name1);
     Console.WriteLine("Decoded name: " + XmlConvert.DecodeName(name1));

     // Encode and decode a local name.
     string name2 = XmlConvert.EncodeLocalName("a:book");
     Console.WriteLine("Encoded local name: " + name2);
     Console.WriteLine("Decoded local name: " + XmlConvert.DecodeName(name2));
  }
}

Imports System.IO
Imports System.Xml

public class Sample

  public shared sub Main()

     ' Encode and decode a name with spaces.
     Dim name1 as string = XmlConvert.EncodeName("Order Detail")
     Console.WriteLine("Encoded name: " + name1)
     Console.WriteLine("Decoded name: " + XmlConvert.DecodeName(name1))

     ' Encode and decode a local name.
     Dim name2 as string= XmlConvert.EncodeLocalName("a:book")
     Console.WriteLine("Encoded local name: " + name2)
     Console.WriteLine("Decoded local name: " + XmlConvert.DecodeName(name2))

  end sub
end class

Remarks

This method translates invalid characters, such as spaces or half-width Katakana, that need to be mapped to XML names without the support or presence of schemas. The invalid characters are translated into escaped numeric entity encodings.

The escape character is "_". Any XML name character that does not conform to the XML 1.0 spec (fourth edition) recommendation is escaped as _xHHHH_. The HHHH string stands for the four-digit hexadecimal UCS-2 code for the character in most significant bit first order. For example, the name Order Details is encoded as Order_x0020_Details.

The underscore character does not need to be escaped unless it is followed by a character sequence that together with the underscore can be misinterpreted as an escape sequence when decoding the name. For example, Order_Details is not encoded, but Order_x0020_ is encoded as Order_x005f_x0020_. No shortforms are allowed. For example, the forms _x20_ and __ are not generated.

This method guarantees the name is valid according to the XML specification. It allows colons in any position, which means the name may still be invalid according to the W3C Namespace Specification. To guarantee it is a valid namespace qualified name use EncodeLocalName for the prefix and local name parts and join the result with a colon.

Applies to

Продукт	Версии
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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