Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

ConfigurationElement.IsReadOnly Method

Gets a value indicating whether the ConfigurationElement object is read-only.

Namespace:  System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)
Public Overridable Function IsReadOnly As Boolean

Return Value

Type: System.Boolean
true if the ConfigurationElement object is read-only; otherwise, false.

The system defines configuration elements that cannot be modified.

To determine which elements can be modified, use the IsReadOnly method.

The following example shows how to use the IsReadOnly method. It is used on a custom section and returns false.

    ' Show how to use IsReadOnly. 
    ' It loops to see if the elements are read only.  
    Shared Sub ReadOnlyElements()
            ' Get the current configuration file. 
            Dim config _
            As System.Configuration.Configuration = _
            ConfigurationManager.OpenExeConfiguration( _

            ' Get the MyUrls section. 
            Dim myUrlsSection As UrlsSection = _

            Dim elements As UrlsCollection = _

            Dim elemEnum As IEnumerator = _

            Dim i As Integer = 0

            While elemEnum.MoveNext()
                Console.WriteLine("The element {0} is read only: {1}", _
                elements(i).Name, elements(i).IsReadOnly().ToString())
                i += 1
            End While 
        Catch err As ConfigurationErrorsException
            Console.WriteLine("[ReadOnlyElements: {0}]", _
        End Try 

    End Sub 'ReadOnlyElements

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

© 2014 Microsoft. All rights reserved.