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ConfigurationCollectionAttribute.ConfigurationCollectionAttribute Constructor

Initializes a new instance of the ConfigurationCollectionAttribute class.

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

public ConfigurationCollectionAttribute (
	Type itemType
)
public ConfigurationCollectionAttribute (
	Type itemType
)
public function ConfigurationCollectionAttribute (
	itemType : Type
)
Not applicable.

Parameters

itemType

The type of the property collection to create.

Exception typeCondition

ArgumentNullException

itemType is a null reference (Nothing in Visual Basic).

You use this constructor to tell the .NET Framework the custom type of the property collection to be created.

The following example shows how to use the ConfigurationCollectionAttribute.


// Declare the urls collection property.
// Note: the "IsDefaultCollection = false" instructs 
// .NET Framework to build a nested section of 
// the kind <urls> ...</urls>.
[ConfigurationProperty("urls", IsDefaultCollection = false)]
[ConfigurationCollection(typeof(UrlsCollection), 
    AddItemName="addUrl", 
    ClearItemsName="clearUrls",
    RemoveItemName="RemoveUrl")]
public UrlsCollection Urls
{

    get
    {
        UrlsCollection urlsCollection = 
        (UrlsCollection)base["urls"];
        return urlsCollection;
    }
}


Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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