ConfigurationCollectionAttribute(Type) Constructor

Reference

Definition

Namespace:: System.Configuration

Assembly:: System.Configuration.ConfigurationManager.dll

Assembly:: System.Configuration.dll

Package:: System.Configuration.ConfigurationManager v8.0.1

Package:: System.Configuration.ConfigurationManager v9.0.0-rc.2.24473.5

Source:: ConfigurationCollectionAttribute.cs

Source:: ConfigurationCollectionAttribute.cs

Important

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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

ArgumentNullException

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

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