RoleProviderCollection.Item プロパティとは？ わかりやすく解説

Public ReadOnly Default
 Property Item ( _
    name As String _
) As RoleProvider

Dim instance As RoleProviderCollection
Dim name As String
Dim value As RoleProvider

value = instance(name)

public RoleProvider this [
    string name
] { get; }

public:
property RoleProvider^ default [String^] {
    RoleProvider^ get (String^ name);
}

/** @property */
public RoleProvider get_Item (String name)

JScript では、インデックス付きのプロパティは使用できますが、新規に宣言することはできません。.

Dim p As SqlRoleProvider = CType(Roles.Providers("SqlProvider"),
 SqlRoleProvider)
DescriptionLabel.Text = p.Description

SqlRoleProvider p = (SqlRoleProvider)Roles.Providers["SqlProvider"];
DescriptionLabel.Text = p.Description;