ConfigurationElement.LockAttributes ConfigurationElement.LockAttributes ConfigurationElement.LockAttributes ConfigurationElement.LockAttributes Property

定义

获取被锁定的特性的集合Gets the collection of locked attributes

public:
 property System::Configuration::ConfigurationLockCollection ^ LockAttributes { System::Configuration::ConfigurationLockCollection ^ get(); };
public System.Configuration.ConfigurationLockCollection LockAttributes { get; }
member this.LockAttributes : System.Configuration.ConfigurationLockCollection
Public ReadOnly Property LockAttributes As ConfigurationLockCollection

属性值

示例

下面的示例演示如何使用 LockAttributes 属性。The following example shows how to use the LockAttributes property.

// Show how to use LockAttributes.
// It locks and unlocks all the urls elements.
static void LockAttributes()
{

    try
    {
        // Get the current configuration file.
        System.Configuration.Configuration config =
            ConfigurationManager.OpenExeConfiguration(
            ConfigurationUserLevel.None);

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

        if (myUrlsSection == null)
            Console.WriteLine("Failed to load UrlsSection.");
        else
        {

            IEnumerator elemEnum =
                 myUrlsSection.Urls.GetEnumerator();

            int i = 0;
            while (elemEnum.MoveNext())
            {

                // Get the current element.
                ConfigurationElement element =
                    myUrlsSection.Urls[i];

                // Get the lock attributes collection of 
                // the current element.
                ConfigurationLockCollection lockAttributes =
                    element.LockAttributes;

                // Add or remove the lock on the attributes.
                if (lockAttributes.Contains("name"))
                    lockAttributes.Remove("name");
                else
                    lockAttributes.Add("name");

                if (lockAttributes.Contains("url"))
                    lockAttributes.Remove("url");
                else
                    lockAttributes.Add("url");

                if (lockAttributes.Contains("port"))
                    lockAttributes.Remove("port");
                else
                    lockAttributes.Add("port");


                // Get the locket attributes.
                string lockedAttributes =
                    lockAttributes.AttributeList;

                Console.WriteLine(
                    "Element {0} Locked attributes list: {1}",
                    i.ToString(), lockedAttributes);

                i += 1;

                config.Save(ConfigurationSaveMode.Full);

            }

        }
    }
    catch (ConfigurationErrorsException e)
    {
        Console.WriteLine("[LockAttributes: {0}]",
            e.ToString());
    }

}
' Show how to use LockAttributes.
' It locks and unlocks all the urls elements.
Shared Sub LockAttributes()

    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")

        If myUrlsSection Is Nothing Then
            Console.WriteLine("Failed to load UrlsSection.")
        Else

            Dim elemEnum As IEnumerator = _
            myUrlsSection.Urls.GetEnumerator()

            Dim i As Integer = 0
            While elemEnum.MoveNext()
                ' Get the current element.
                Dim element As ConfigurationElement = _
                myUrlsSection.Urls(i)

                ' Get the lock attributes collection of 
                ' the current element.
                Dim lockAttributes _
                As ConfigurationLockCollection = _
                element.LockAttributes

                ' Add or remove the lock on the attributes.
                If lockAttributes.Contains("name") Then
                    lockAttributes.Remove("name")
                Else
                    lockAttributes.Add("name")
                End If
                If lockAttributes.Contains("url") Then
                    lockAttributes.Remove("url")
                Else
                    lockAttributes.Add("url")
                End If
                If lockAttributes.Contains("port") Then
                    lockAttributes.Remove("port")
                Else
                    lockAttributes.Add("port")
                End If

                ' Get the locket attributes.
                Dim lockedAttributes As String = _
                lockAttributes.AttributeList()

                Console.WriteLine("Element {0} Locked attributes list: {1}", _
                i.ToString(), lockedAttributes)

                i += 1

                config.Save(ConfigurationSaveMode.Full)
            End While
        End If

    Catch e As ConfigurationErrorsException
        Console.WriteLine("[LockAttributes: {0}]", _
        e.ToString())
    End Try

End Sub

注解

LockAttributes属性允许您锁定您指定的所有属性。The LockAttributes property allows you to lock all the attributes you specify.

为此,请使用Contains方法,如 "示例" 部分中所述。To do that you use the Contains method, as explained in the Example section.

备注

LockAttributes属性允许您防止修改应用规则的元素的子配置元素。The LockAttributes property allows you to prevent the child configuration elements of the element to which you apply the rule from being modified. 如果LockItem要在元素自身及其子元素上放置一般锁,请使用。Use LockItem if you want to put a general lock on the element itself and its child elements.

继承者说明

如果同时使用LockAllAttributesExceptLockAttributes属性,则将应用限制性最强的规则。If you use the LockAllAttributesExcept and LockAttributes properties at the same time, the most restrictive rule applies.

适用于

另请参阅