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ConfigurationCollectionAttribute(Type) Constructor

Definition

Initializes a new instance of the ConfigurationCollectionAttribute class.

public:
 ConfigurationCollectionAttribute(Type ^ itemType);
public ConfigurationCollectionAttribute (Type itemType);
new System.Configuration.ConfigurationCollectionAttribute : Type -> System.Configuration.ConfigurationCollectionAttribute
Public Sub New (itemType As Type)

Parameters

itemType
Type

The type of the property collection to create.

Exceptions

itemType is null.

Examples

The following example shows how to use the ConfigurationCollectionAttribute.

// Declare the Urls collection property using the
// ConfigurationCollectionAttribute.
// This allows to build a nested section that contains
// a collection of elements.
[ConfigurationProperty("urls", IsDefaultCollection = false)]
[ConfigurationCollection(typeof(UrlsCollection),
    AddItemName = "add",
    ClearItemsName = "clear",
    RemoveItemName = "remove")]
public UrlsCollection Urls
{
    get
    {
        UrlsCollection urlsCollection =
            (UrlsCollection)base["urls"];
        return urlsCollection;
    }
}
' Declare the Urls collection property using the
' ConfigurationCollectionAttribute.
' This allows to build a nested section that contains
' a collection of elements.
<ConfigurationProperty("urls", IsDefaultCollection:=False),
    System.Configuration.ConfigurationCollection(GetType(UrlsCollection),
    AddItemName:="add", ClearItemsName:="clear", RemoveItemName:="remove")> _
Public ReadOnly Property Urls() As UrlsCollection
    Get
        Dim urlsCollection As UrlsCollection = CType(MyBase.Item("urls"), UrlsCollection)
        Return urlsCollection
    End Get
End Property

Remarks

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

Applies to