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ElementInformation.IsPresent Property

Gets a value indicating whether the associated ConfigurationElement object is in the configuration file.

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

public bool IsPresent { get; }

Property Value

Type: System.Boolean
true if the associated ConfigurationElement object is in the configuration file; otherwise, false.

The following example shows how to use the IsPresent property.

static public void IsElementPresent()
{
    // Get the current configuration file.
    System.Configuration.Configuration config =
            ConfigurationManager.OpenExeConfiguration(
            ConfigurationUserLevel.None);

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

    // Get the element.
    UrlConfigElement url = section.Simple;

    bool isPresent =
        url.ElementInformation.IsPresent;
    Console.WriteLine("Url element is present? {0}",
        isPresent.ToString());


}

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

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