ConfigurationElement.IsReadOnly Metode

Definisi

Ruang nama:

System.Configuration

Rakitan:

System.Configuration.ConfigurationManager.dll

Paket:

System.Configuration.ConfigurationManager v8.0.0

Sumber:

ConfigurationElement.cs

Mendapatkan nilai yang menunjukkan apakah ConfigurationElement objek bersifat baca-saja.

public:
 virtual bool IsReadOnly();

public virtual bool IsReadOnly ();

abstract member IsReadOnly : unit -> bool
override this.IsReadOnly : unit -> bool

Public Overridable Function IsReadOnly () As Boolean

Mengembalikan

Boolean

trueConfigurationElement jika objek bersifat baca-saja; jika tidak, false.

Contoh

Contoh berikut menunjukkan cara menggunakan IsReadOnly metode . Ini digunakan pada bagian kustom dan mengembalikan false.

// Show how to use IsReadOnly.
// It loops to see if the elements are read only. 
static void ReadOnlyElements()
{
    try
    {
        // Get the configuration file.
        System.Configuration.Configuration config =
            ConfigurationManager.OpenExeConfiguration(
            ConfigurationUserLevel.None);

        // Get the MyUrls section.
        UrlsSection myUrlsSection =
            config.GetSection("MyUrls") as UrlsSection;

        UrlsCollection elements = myUrlsSection.Urls;

        IEnumerator elemEnum =
            elements.GetEnumerator();

        int i = 0;
        Console.WriteLine(elements.Count.ToString());

        while (elemEnum.MoveNext())
        {
            Console.WriteLine("The element {0} is read only: {1}",
             elements[i].Name,
             elements[i].IsReadOnly().ToString());
            i += 1;
        }
    }
    catch (ConfigurationErrorsException err)
    {
        Console.WriteLine("[ReadOnlyElements: {0}]",
            err.ToString());
    }
}

' Show how to use IsReadOnly.
' It loops to see if the elements are read only. 
Shared Sub ReadOnlyElements()
    Try
        ' Get the current configuration file.
        Dim config _
        As System.Configuration.Configuration = _
        ConfigurationManager.OpenExeConfiguration( _
        ConfigurationUserLevel.None)

        ' Get the MyUrls section.
        Dim myUrlsSection As UrlsSection = _
        config.GetSection("MyUrls")

        Dim elements As UrlsCollection = _
        myUrlsSection.Urls

        Dim elemEnum As IEnumerator = _
        elements.GetEnumerator()

        Dim i As Integer = 0
        Console.WriteLine(elements.Count.ToString())

        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}]", _
        err.ToString())
    End Try

End Sub

Keterangan

Sistem mendefinisikan elemen konfigurasi yang tidak dapat dimodifikasi.

Untuk menentukan elemen mana yang dapat dimodifikasi, gunakan IsReadOnly metode .