WebPartConnection.ConsumerConnectionPoint Proprietà
Definizione
Importante
Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.
Ottiene l'oggetto che funge da punto di connessione per un controllo consumer in una connessione.
public:
property System::Web::UI::WebControls::WebParts::ConsumerConnectionPoint ^ ConsumerConnectionPoint { System::Web::UI::WebControls::WebParts::ConsumerConnectionPoint ^ get(); };[System.ComponentModel.Browsable(false)]
public System.Web.UI.WebControls.WebParts.ConsumerConnectionPoint ConsumerConnectionPoint { get; }[<System.ComponentModel.Browsable(false)>]
member this.ConsumerConnectionPoint : System.Web.UI.WebControls.WebParts.ConsumerConnectionPointPublic ReadOnly Property ConsumerConnectionPoint As ConsumerConnectionPointValore della proprietà
Oggetto ConsumerConnectionPoint associato al controllo consumer in una connessione.
- Attributi
Esempio
Nell'esempio di codice seguente viene illustrato l'uso programmatico della ConsumerConnectionPoint proprietà.
L'esempio include quattro parti:
Controllo utente che consente di modificare la modalità di visualizzazione web part in una pagina.
Codice sorgente per un'interfaccia e due WebPart controlli che fungono da provider e consumer per una connessione.
Pagina Web per ospitare tutti i controlli ed eseguire l'esempio di codice.
Spiegazione di come eseguire la pagina di esempio.
La prima parte di questo esempio di codice è il controllo utente che consente agli utenti di modificare le modalità di visualizzazione in una pagina Web. Salvare il codice sorgente seguente in un file con estensione ascx, assegnandole il nome del file assegnato all'attributo Src della Register direttiva per questo controllo utente, che si trova nella parte superiore della pagina Web di hosting. Per informazioni dettagliate sulle modalità di visualizzazione e una descrizione del codice sorgente in questo controllo, vedere Procedura dettagliata: Modifica delle modalità di visualizzazione in una pagina web part.
<%@ control language="C#" classname="DisplayModeMenuCS"%>
<script runat="server">
// Use a field to reference the current WebPartManager.
WebPartManager _manager;
void Page_Init(object sender, EventArgs e)
{
Page.InitComplete += new EventHandler(InitComplete);
}
void InitComplete(object sender, System.EventArgs e)
{
_manager = WebPartManager.GetCurrentWebPartManager(Page);
String browseModeName = WebPartManager.BrowseDisplayMode.Name;
// Fill the dropdown with the names of supported display modes.
foreach (WebPartDisplayMode mode in _manager.SupportedDisplayModes)
{
String modeName = mode.Name;
// Make sure a mode is enabled before adding it.
if (mode.IsEnabled(_manager))
{
ListItem item = new ListItem(modeName, modeName);
DisplayModeDropdown.Items.Add(item);
}
}
// If shared scope is allowed for this user, display the scope-switching
// UI and select the appropriate radio button for the current user scope.
if (_manager.Personalization.CanEnterSharedScope)
{
Panel2.Visible = true;
if (_manager.Personalization.Scope == PersonalizationScope.User)
RadioButton1.Checked = true;
else
RadioButton2.Checked = true;
}
}
// Change the page to the selected display mode.
void DisplayModeDropdown_SelectedIndexChanged(object sender, EventArgs e)
{
String selectedMode = DisplayModeDropdown.SelectedValue;
WebPartDisplayMode mode = _manager.SupportedDisplayModes[selectedMode];
if (mode != null)
_manager.DisplayMode = mode;
}
// Set the selected item equal to the current display mode.
void Page_PreRender(object sender, EventArgs e)
{
ListItemCollection items = DisplayModeDropdown.Items;
int selectedIndex =
items.IndexOf(items.FindByText(_manager.DisplayMode.Name));
DisplayModeDropdown.SelectedIndex = selectedIndex;
}
// Reset all of a user's personalization data for the page.
protected void LinkButton1_Click(object sender, EventArgs e)
{
_manager.Personalization.ResetPersonalizationState();
}
// If not in User personalization scope, toggle into it.
protected void RadioButton1_CheckedChanged(object sender, EventArgs e)
{
if (_manager.Personalization.Scope == PersonalizationScope.Shared)
_manager.Personalization.ToggleScope();
}
// If not in Shared scope, and if user is allowed, toggle the scope.
protected void RadioButton2_CheckedChanged(object sender, EventArgs e)
{
if (_manager.Personalization.CanEnterSharedScope &&
_manager.Personalization.Scope == PersonalizationScope.User)
_manager.Personalization.ToggleScope();
}
</script>
<div>
<asp:Panel ID="Panel1" runat="server"
Borderwidth="1"
Width="230"
BackColor="lightgray"
Font-Names="Verdana, Arial, Sans Serif" >
<asp:Label ID="Label1" runat="server"
Text=" Display Mode"
Font-Bold="true"
Font-Size="8"
Width="120" AssociatedControlID="DisplayModeDropdown"/>
<asp:DropDownList ID="DisplayModeDropdown" runat="server"
AutoPostBack="true"
Width="120"
OnSelectedIndexChanged="DisplayModeDropdown_SelectedIndexChanged" />
<asp:LinkButton ID="LinkButton1" runat="server"
Text="Reset User State"
ToolTip="Reset the current user's personalization data for the page."
Font-Size="8"
OnClick="LinkButton1_Click" />
<asp:Panel ID="Panel2" runat="server"
GroupingText="Personalization Scope"
Font-Bold="true"
Font-Size="8"
Visible="false" >
<asp:RadioButton ID="RadioButton1" runat="server"
Text="User"
AutoPostBack="true"
GroupName="Scope" OnCheckedChanged="RadioButton1_CheckedChanged" />
<asp:RadioButton ID="RadioButton2" runat="server"
Text="Shared"
AutoPostBack="true"
GroupName="Scope"
OnCheckedChanged="RadioButton2_CheckedChanged" />
</asp:Panel>
</asp:Panel>
</div>
<%@ control language="vb" classname="DisplayModeMenuVB"%>
<script runat="server">
' Use a field to reference the current WebPartManager.
Dim _manager As WebPartManager
Sub Page_Init(ByVal sender As Object, ByVal e As EventArgs)
AddHandler Page.InitComplete, AddressOf InitComplete
End Sub
Sub InitComplete(ByVal sender As Object, ByVal e As System.EventArgs)
_manager = WebPartManager.GetCurrentWebPartManager(Page)
Dim browseModeName As String = WebPartManager.BrowseDisplayMode.Name
' Fill the dropdown with the names of supported display modes.
Dim mode As WebPartDisplayMode
For Each mode In _manager.SupportedDisplayModes
Dim modeName As String = mode.Name
' Make sure a mode is enabled before adding it.
If mode.IsEnabled(_manager) Then
Dim item As New ListItem(modeName, modeName)
DisplayModeDropdown.Items.Add(item)
End If
Next mode
' If shared scope is allowed for this user, display the scope-switching
' UI and select the appropriate radio button for the current user scope.
If _manager.Personalization.CanEnterSharedScope Then
Panel2.Visible = True
If _manager.Personalization.Scope = PersonalizationScope.User Then
RadioButton1.Checked = True
Else
RadioButton2.Checked = True
End If
End If
End Sub
' Change the page to the selected display mode.
Sub DisplayModeDropdown_SelectedIndexChanged(ByVal sender As Object, _
ByVal e As EventArgs)
Dim selectedMode As String = DisplayModeDropdown.SelectedValue
Dim mode As WebPartDisplayMode = _
_manager.SupportedDisplayModes(selectedMode)
If Not (mode Is Nothing) Then
_manager.DisplayMode = mode
End If
End Sub
' Set the selected item equal to the current display mode.
Sub Page_PreRender(ByVal sender As Object, ByVal e As EventArgs)
Dim items As ListItemCollection = DisplayModeDropdown.Items
Dim selectedIndex As Integer = _
items.IndexOf(items.FindByText(_manager.DisplayMode.Name))
DisplayModeDropdown.SelectedIndex = selectedIndex
End Sub
' Reset all of a user's personalization data for the page.
Protected Sub LinkButton1_Click(ByVal sender As Object, _
ByVal e As EventArgs)
_manager.Personalization.ResetPersonalizationState()
End Sub
' If not in User personalization scope, toggle into it.
Protected Sub RadioButton1_CheckedChanged(ByVal sender As Object, _
ByVal e As EventArgs)
If _manager.Personalization.Scope = PersonalizationScope.Shared Then
_manager.Personalization.ToggleScope()
End If
End Sub
' If not in Shared scope, and if user is allowed, toggle the scope.
Protected Sub RadioButton2_CheckedChanged(ByVal sender As Object, _
ByVal e As EventArgs)
If _manager.Personalization.CanEnterSharedScope AndAlso _
_manager.Personalization.Scope = PersonalizationScope.User Then
_manager.Personalization.ToggleScope()
End If
End Sub
</script>
<div>
<asp:Panel ID="Panel1" runat="server"
Borderwidth="1"
Width="230"
BackColor="lightgray"
Font-Names="Verdana, Arial, Sans Serif" >
<asp:Label ID="Label1" runat="server"
Text=" Display Mode"
Font-Bold="true"
Font-Size="8"
Width="120"
AssociatedControlID="DisplayModeDropdown"/>
<asp:DropDownList ID="DisplayModeDropdown" runat="server"
AutoPostBack="true"
Width="120"
OnSelectedIndexChanged="DisplayModeDropdown_SelectedIndexChanged" />
<asp:LinkButton ID="LinkButton1" runat="server"
Text="Reset User State"
ToolTip="Reset the current user's personalization data for the page."
Font-Size="8"
OnClick="LinkButton1_Click" />
<asp:Panel ID="Panel2" runat="server"
GroupingText="Personalization Scope"
Font-Bold="true"
Font-Size="8"
Visible="false" >
<asp:RadioButton ID="RadioButton1" runat="server"
Text="User"
AutoPostBack="true"
GroupName="Scope" OnCheckedChanged="RadioButton1_CheckedChanged" />
<asp:RadioButton ID="RadioButton2" runat="server"
Text="Shared"
AutoPostBack="true"
GroupName="Scope"
OnCheckedChanged="RadioButton2_CheckedChanged" />
</asp:Panel>
</asp:Panel>
</div>
La seconda parte dell'esempio di codice è il codice sorgente per i due WebPart controlli che fungono da consumer e il provider per la connessione e un'interfaccia usata per i punti di connessione. Per eseguire l'esempio di codice, è necessario compilare questo codice sorgente. È possibile compilarlo in modo esplicito e inserire l'assembly risultante nella cartella Bin del sito Web o nella global assembly cache. In alternativa, è possibile inserire il codice sorgente nella cartella App_Code del sito, in cui verrà compilato dinamicamente in fase di esecuzione. Questo esempio di codice usa la compilazione dinamica. Per una procedura dettagliata che illustra come compilare, vedere Procedura dettagliata: Sviluppo e uso di un controllo server Web personalizzato.
namespace Samples.AspNet.CS.Controls
{
using System;
using System.Web;
using System.Web.Security;
using System.Security.Permissions;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
[AspNetHostingPermission(SecurityAction.Demand,
Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand,
Level = AspNetHostingPermissionLevel.Minimal)]
public interface IZipCode
{
string ZipCode { get; set;}
}
[AspNetHostingPermission(SecurityAction.Demand,
Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand,
Level = AspNetHostingPermissionLevel.Minimal)]
public class ZipCodeWebPart : WebPart, IZipCode
{
string zipCodeText = String.Empty;
TextBox input;
Button send;
public ZipCodeWebPart()
{
}
// Make the implemented property personalizable to save
// the Zip Code between browser sessions.
[Personalizable()]
public virtual string ZipCode
{
get { return zipCodeText; }
set { zipCodeText = value; }
}
// This is the callback method that returns the provider.
[ConnectionProvider("Zip Code Provider", "ZipCodeProvider")]
public IZipCode ProvideIZipCode()
{
return this;
}
protected override void CreateChildControls()
{
Controls.Clear();
input = new TextBox();
this.Controls.Add(input);
send = new Button();
send.Text = "Enter 5-digit Zip Code";
send.Click += new EventHandler(this.submit_Click);
this.Controls.Add(send);
}
private void submit_Click(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(input.Text))
{
zipCodeText = Page.Server.HtmlEncode(input.Text);
input.Text = String.Empty;
}
}
}
[AspNetHostingPermission(SecurityAction.Demand,
Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand,
Level = AspNetHostingPermissionLevel.Minimal)]
public class WeatherWebPart : WebPart
{
private IZipCode _provider;
string _zipSearch;
Label DisplayContent;
// This method is identified by the ConnectionConsumer
// attribute, and is the mechanism for connecting with
// the provider.
[ConnectionConsumer("Zip Code Consumer", "ZipCodeConsumer")]
public void GetIZipCode(IZipCode Provider)
{
_provider = Provider;
}
protected override void OnPreRender(EventArgs e)
{
EnsureChildControls();
if (this._provider != null)
{
_zipSearch = _provider.ZipCode.Trim();
DisplayContent.Text = "My Zip Code is: " + _zipSearch;
}
}
protected override void CreateChildControls()
{
Controls.Clear();
DisplayContent = new Label();
this.Controls.Add(DisplayContent);
}
}
}
Imports System.Web
Imports System.Web.Security
Imports System.Security.Permissions
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Namespace Samples.AspNet.VB.Controls
<AspNetHostingPermission(SecurityAction.Demand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermission(SecurityAction.InheritanceDemand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
Public Interface IZipCode
Property ZipCode() As String
End Interface
<AspNetHostingPermission(SecurityAction.Demand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermission(SecurityAction.InheritanceDemand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
Public Class ZipCodeWebPart
Inherits WebPart
Implements IZipCode
Private zipCodeText As String = String.Empty
Private input As TextBox
Private send As Button
Public Sub New()
End Sub
' Make the implemented property personalizable to save
' the Zip Code between browser sessions.
<Personalizable()> _
Public Property ZipCode() As String _
Implements IZipCode.ZipCode
Get
Return zipCodeText
End Get
Set(ByVal value As String)
zipCodeText = value
End Set
End Property
' This is the callback method that returns the provider.
<ConnectionProvider("Zip Code Provider", "ZipCodeProvider")> _
Public Function ProvideIZipCode() As IZipCode
Return Me
End Function
Protected Overrides Sub CreateChildControls()
Controls.Clear()
input = New TextBox()
Me.Controls.Add(input)
send = New Button()
send.Text = "Enter 5-digit Zip Code"
AddHandler send.Click, AddressOf Me.submit_Click
Me.Controls.Add(send)
End Sub
Private Sub submit_Click(ByVal sender As Object, _
ByVal e As EventArgs)
If input.Text <> String.Empty Then
zipCodeText = Page.Server.HtmlEncode(input.Text)
input.Text = String.Empty
End If
End Sub
End Class
<AspNetHostingPermission(SecurityAction.Demand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermission(SecurityAction.InheritanceDemand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
Public Class WeatherWebPart
Inherits WebPart
Private _provider As IZipCode
Private _zipSearch As String
Private DisplayContent As Label
' This method is identified by the ConnectionConsumer
' attribute, and is the mechanism for connecting with
' the provider.
<ConnectionConsumer("Zip Code Consumer", "ZipCodeConsumer")> _
Public Sub GetIZipCode(ByVal Provider As IZipCode)
_provider = Provider
End Sub
Protected Overrides Sub OnPreRender(ByVal e As EventArgs)
EnsureChildControls()
If Not (Me._provider Is Nothing) Then
_zipSearch = _provider.ZipCode.Trim()
DisplayContent.Text = "My Zip Code is: " + _zipSearch
End If
End Sub
Protected Overrides Sub CreateChildControls()
Controls.Clear()
DisplayContent = New Label()
Me.Controls.Add(DisplayContent)
End Sub
End Class
End Namespace
La terza parte dell'esempio di codice è il codice per la pagina Web che ospita i controlli e illustra l'uso della ConsumerConnectionPoint proprietà.
Button1_Click Nel metodo vengono creati tutti gli oggetti necessari per formare una connessione, incluso un ConsumerConnectionPoint oggetto. Questi oggetti vengono tutti passati al ConnectWebParts metodo per creare la connessione.
Button2_Click Nel metodo il codice accede alla ConsumerConnectionPoint proprietà e visualizza alcuni dettagli del punto di connessione.
<%@ Page Language="C#" %>
<%@ Register TagPrefix="uc1"
TagName="DisplayModeMenuCS"
Src="~/displaymodemenucs.ascx" %>
<%@ Register TagPrefix="aspSample"
Namespace="Samples.AspNet.CS.Controls" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Button1_Click(object sender, EventArgs e)
{
ProviderConnectionPoint provPoint =
mgr.GetProviderConnectionPoints(zip1)["ZipCodeProvider"];
ConsumerConnectionPoint connPoint =
mgr.GetConsumerConnectionPoints(weather1)["ZipCodeConsumer"];
WebPartConnection conn1 = mgr.ConnectWebParts(zip1, provPoint,
weather1, connPoint);
}
protected void Button2_Click(object sender, EventArgs e)
{
ConsumerConnectionPoint connpoint =
mgr.Connections[0].ConsumerConnectionPoint;
lbl2.Text = "<h3>Consumer Connection Points Details</h3>" +
"Display name: " + connpoint.DisplayName +
"<br />" +
"Control type: " + connpoint.ControlType.FullName +
"<br />" +
"Connection Point ID: " + connpoint.ID +
"<br />" +
"Interface type: " + connpoint.InterfaceType.ToString();
}
protected void mgr_DisplayModeChanged(object sender,
WebPartDisplayModeEventArgs e)
{
if (mgr.DisplayMode == WebPartManager.ConnectDisplayMode)
{
Button1.Visible = true;
Button2.Visible = true;
}
else
{
Button1.Visible = false;
Button2.Visible = false;
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:WebPartManager ID="mgr" runat="server"
OnDisplayModeChanged="mgr_DisplayModeChanged" />
<uc1:DisplayModeMenuCS ID="menu1" runat="server" />
<asp:WebPartZone ID="WebPartZone1" runat="server">
<ZoneTemplate>
<aspSample:ZipCodeWebPart ID="zip1" runat="server"
Title="Zip Code Provider" />
<aspSample:WeatherWebPart ID="weather1" runat="server"
Title="Zip Code Consumer" />
</ZoneTemplate>
</asp:WebPartZone>
<asp:ConnectionsZone ID="ConnectionsZone1" runat="server">
</asp:ConnectionsZone>
<asp:Button ID="Button1" runat="server"
Text="Connect WebPart Controls"
OnClick="Button1_Click"
Visible="false" />
<br />
<asp:Button ID="Button2" runat="server"
Text="ConnectionPoint Details"
OnClick="Button2_Click"
Visible="false" />
<br />
<asp:Label ID="lbl2" runat="server" />
</div>
</form>
</body>
</html>
<%@ Page Language="vb" %>
<%@ Register TagPrefix="uc1"
TagName="DisplayModeMenuVB"
Src="~/displaymodemenuvb.ascx" %>
<%@ Register TagPrefix="aspSample"
Namespace="Samples.AspNet.VB.Controls" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Button1_Click(ByVal sender As Object, _
ByVal e As System.EventArgs)
Dim provPoint As ProviderConnectionPoint = _
mgr.GetProviderConnectionPoints(zip1)("ZipCodeProvider")
Dim connPoint As ConsumerConnectionPoint = _
mgr.GetConsumerConnectionPoints(weather1)("ZipCodeConsumer")
mgr.ConnectWebParts(zip1, provPoint, weather1, connPoint)
End Sub
Protected Sub Button2_Click(ByVal sender As Object, _
ByVal e As System.EventArgs)
Dim connpoint As ConsumerConnectionPoint = _
mgr.Connections(0).ConsumerConnectionPoint
lbl2.Text = "<h3>Consumer Connection Points Details</h3>" & _
"Display name: " & connpoint.DisplayName & _
"<br />" & _
"Control type: " & connpoint.ControlType.FullName & _
"<br />" & _
"Connection Point ID: " & connpoint.ID & _
"<br />" & _
"Interface type: " & connpoint.InterfaceType.ToString()
End Sub
Protected Sub mgr_DisplayModeChanged (ByVal sender as Object, _
ByVal e as WebPartDisplayModeEventArgs)
If mgr.DisplayMode Is WebPartManager.ConnectDisplayMode Then
Button1.Visible = True
Button2.Visible = True
Else
Button1.Visible = False
Button2.Visible = False
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:WebPartManager ID="mgr" runat="server"
OnDisplayModeChanged="mgr_DisplayModeChanged" />
<uc1:DisplayModeMenuVB ID="menu1" runat="server" />
<asp:WebPartZone ID="WebPartZone1" runat="server">
<ZoneTemplate>
<aspSample:ZipCodeWebPart ID="zip1" runat="server"
Title="Zip Code Provider" />
<aspSample:WeatherWebPart ID="weather1" runat="server"
Title="Zip Code Consumer" />
</ZoneTemplate>
</asp:WebPartZone>
<asp:ConnectionsZone ID="ConnectionsZone1" runat="server">
</asp:ConnectionsZone>
<asp:Button ID="Button1" runat="server"
Text="Connect WebPart Controls"
OnClick="Button1_Click"
Visible="false" />
<br />
<asp:Button ID="Button2" runat="server"
Text="ConnectionPoint Details"
OnClick="Button2_Click"
Visible="false" />
<br />
<asp:Label ID="lbl2" runat="server" />
</div>
</form>
</body>
</html>
Dopo aver caricato la pagina in un browser, usare il controllo elenco a discesa Modalità visualizzazione per passare alla modalità di connessione. Fare clic sul menu verbi (rappresentato dalla freccia verso il basso nella barra del titolo) su uno dei WebPart controlli e fare clic sul verbo di connessione. Usare il pulsante Connect WebPart Controls o l'interfaccia utente di connessione fornita per creare una connessione tra i due controlli. Fare clic sul pulsante Dettagli di ConnectionPoint per eseguire il codice che illustra la ConsumerConnectionPoint proprietà.
Commenti
Uno dei passaggi necessari per la creazione di una connessione tra due WebPart controlli consiste nel creare punti di connessione per ogni controllo. Il punto di connessione consumer è un oggetto contenente le informazioni su come connettersi al controllo che funge da consumer. Nel codice sorgente del consumer è necessario identificare uno dei metodi con l'attributo ConnectionConsumer . L'oggetto ConsumerConnectionPoint associato a un controllo consumer contiene dettagli sul metodo e sull'attributo, incluso un ID per il metodo, un nome visualizzato da usare nell'interfaccia utente e il tipo di interfaccia che il metodo può recuperare. Questo set di informazioni sul consumer, il relativo metodo per la creazione di connessioni e il tipo di interfaccia che comprende, forma collettivamente un punto di connessione consumer.
Per impostazione predefinita, un ConsumerConnectionPoint oggetto può connettersi a un ProviderConnectionPoint solo oggetto alla volta. Un consumer potrebbe avere più metodi identificati come possibili punti di connessione consumer, ma un consumer può partecipare solo a una connessione come consumer (di conseguenza, solo uno dei punti di connessione consumer può essere attivo) alla volta. Al contrario, un ProviderConnectionPoint può connettersi a qualsiasi numero di ConsumerConnectionPoint oggetti. Questo comportamento predefinito può essere modificato eseguendo l'override della AllowsMultipleConnections proprietà nell'attributo ConnectionConsumerAttribute .
