XmlNamespaceManager.HasNamespace Method (System.Xml)

HasNamespace Method

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This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

XmlNamespaceManager..::.HasNamespace Method

Gets a value indicating whether the supplied prefix has a namespace defined for the current pushed scope.

Namespace: System.Xml
Assembly: System.Xml (in System.Xml.dll)

Syntax

Visual Basic (Declaration)

Public Overridable Function HasNamespace ( _
    prefix As String _
) As Boolean

Visual Basic (Usage)

Dim instance As XmlNamespaceManager
Dim prefix As String
Dim returnValue As Boolean

returnValue = instance.HasNamespace(prefix)

public virtual bool HasNamespace(
    string prefix
)

Visual C++

public:
virtual bool HasNamespace(
    String^ prefix
)

JScript

public function HasNamespace(
    prefix : String
) : boolean

Parameters

prefix: Type: System..::.String
The prefix of the namespace you want to find.

Return Value

Type: System..::.Boolean
true if there is a namespace defined; otherwise, false.

Remarks

To determine whether there is a default empty namespace defined, set prefix to String.Empty. If the method returns true, this indicates that there is a default namespace defined in the current scope. Returning false indicates that no default namespace is defined.

Note:
xmlns:x= "" is illegal according to W3C Namespaces in XML recommendation.

Examples

The following example displays the default namespace, if one exists.

Visual Basic

If nsmgr.HasNamespace(String.Empty) Then
    Console.WriteLine(nsmgr.DefaultNamespace)
End If

if (nsmgr.HasNamespace(String.Empty))
  Console.WriteLine(nsmgr.DefaultNamespace);

Visual C++

if ( nsmgr->HasNamespace( String::Empty ) )
{
   Console::WriteLine( nsmgr->DefaultNamespace );
}

CPP_OLD

if (nsmgr->HasNamespace(String::Empty))
  Console::WriteLine(nsmgr->DefaultNamespace);

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Reference

XmlNamespaceManager Class

XmlNamespaceManager Members

System.Xml Namespace