IPersonalizable IPersonalizable IPersonalizable IPersonalizable Interface

Definition

Definiert zusätzliche Verwaltungsfunktionen zum Anwenden und Extrahieren des Personalisierungszustands.Defines additional management capabilities for the application and extraction of personalization state.

public interface class IPersonalizable
public interface IPersonalizable
type IPersonalizable = interface
Public Interface IPersonalizable
Abgeleitet

Beispiele

Im folgenden Codebeispiel wird die Verwendung der IPersonalizable -Schnittstelle veranschaulicht.The following code example demonstrates how to use the IPersonalizable interface. Das Beispiel besteht aus einer ASPX-Seite, die auf ein WebPartSteuerelement mit dem Namen UrlListWebPartverweist.The example consists of an .aspx page that references a Web Part control named UrlListWebPart. Der folgende Code ist die ASPX-Datei für das Beispiel.The following code is the .aspx file for the example.

<%@ Page Language="C#"  %>
<%@ Register TagPrefix="dict" 
    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">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>IPersonalizable</title>
</head>
<body>
    <form id="form1" runat="server">
    <asp:WebPartManager ID="mgr" runat="server" />
    <div>
    <asp:WebPartZone ID="WebPartZone1" runat="server">
      <ZoneTemplate>
        <dict:urllistwebpart id="listwp1" runat="server"
          title="URL List WebPart" />
      </ZoneTemplate>
    </asp:WebPartZone>
    </div>
    </form>
</body>
</html>
<%@ Page Language="VB"  %>
<%@ Register TagPrefix="dict" 
    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">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>IPersonalizable</title>
</head>
<body>
    <form id="form1" runat="server">
    <asp:WebPartManager ID="mgr" runat="server" />
    <div>
    <asp:WebPartZone ID="WebPartZone1" runat="server">
      <ZoneTemplate>
        <dict:urllistwebpart id="listwp1" runat="server"
          title="URL List WebPart" />
      </ZoneTemplate>
    </asp:WebPartZone>
    </div>
    </form>
</body>
</html>

Der folgende Code ist die Quelle für das Benutzer WebPart definierte Steuerelement.The following code is the source for the custom WebPart control. Diese Datei sollte in das Verzeichnis App_Code eingefügt werden.This file should be placed in the App_Code directory.

namespace Samples.AspNet.CS.Controls
{

    using System;
    using System.Collections;
    using System.ComponentModel;
    using System.Diagnostics;
    using System.Drawing;
    using System.Web;
    using System.Web.UI;
    using System.Security.Permissions;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;

    [AspNetHostingPermission(SecurityAction.Demand,
      Level = AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand,
      Level = AspNetHostingPermissionLevel.Minimal)]
    public class UrlListWebPart : WebPart, IPersonalizable
    {
        private ArrayList _sharedUrls;
        private ArrayList _userUrls;
        private bool _listDirty;

        private TextBox _nameTextBox;
        private TextBox _urlTextBox;
        private Button _addButton;
        private BulletedList _list;

        protected override void CreateChildControls()
        {
            Label nameLabel = new Label();
            Label urlLabel = new Label();
            LiteralControl breakLiteral1 = new LiteralControl("<br />");
            LiteralControl breakLiteral2 = new LiteralControl("<br />");
            LiteralControl breakLiteral3 = new LiteralControl("<br />");

            _nameTextBox = new TextBox();
            _urlTextBox = new TextBox();
            _addButton = new Button();
            _list = new BulletedList();

            nameLabel.Text = "Name: ";
            urlLabel.Text = "URL: ";
            _nameTextBox.ID = "nameTextBox";
            _urlTextBox.ID = "urlTextBox";
            _addButton.Text = "Add";
            _addButton.ID = "addButton";
            _addButton.Click += new EventHandler(this.OnClickAddButton);
            _list.DisplayMode = BulletedListDisplayMode.HyperLink;
            _list.ID = "list";

            Controls.Add(nameLabel);
            Controls.Add(_nameTextBox);
            Controls.Add(breakLiteral1);

            Controls.Add(urlLabel);
            Controls.Add(_urlTextBox);
            Controls.Add(breakLiteral2);

            Controls.Add(_addButton);
            Controls.Add(breakLiteral3);

            Controls.Add(_list);
        }

        private void OnClickAddButton(object sender, EventArgs e)
        {
            string name = _nameTextBox.Text.Trim();
            string url = _urlTextBox.Text.Trim();

            Pair p = new Pair(name, url);
            if (WebPartManager.Personalization.Scope == PersonalizationScope.Shared)
            {
                _sharedUrls ??= new ArrayList();
                _sharedUrls.Add(p);
            }
            else
            {
                _userUrls ??= new ArrayList();
                _userUrls.Add(p);
            }

            OnUrlAdded();
        }

        protected virtual void OnUrlAdded()
        {
            _listDirty = true;
            ChildControlsCreated = false;
        }

        protected override void RenderContents(HtmlTextWriter writer)
        {
            if (_sharedUrls != null)
            {
                foreach (Pair p in _sharedUrls)
                {
                    _list.Items.Add(new ListItem((string)p.First, (string)p.Second));
                }
            }
            if (_userUrls != null)
            {
                foreach (Pair p in _userUrls)
                {
                    _list.Items.Add(new ListItem((string)p.First, (string)p.Second));
                }
            }

            base.RenderContents(writer);
        }

        public virtual bool IsDirty
        {
            get
            {
                return _listDirty;
            }
        }
        public new virtual void Load(PersonalizationDictionary state)
        {
            if (state != null)
            {
                PersonalizationEntry sharedUrlsEntry = state["sharedUrls"];
                if (sharedUrlsEntry != null)
                {
                    _sharedUrls = (ArrayList)sharedUrlsEntry.Value;
                }

                PersonalizationEntry userUrlsEntry = state["userUrls"];
                if (userUrlsEntry != null)
                {
                    _userUrls = (ArrayList)userUrlsEntry.Value;
                }
            }
        }

        public virtual void Save(PersonalizationDictionary state)
        {
            if ((_sharedUrls != null) && (_sharedUrls.Count != 0))
            {
                state["sharedUrls"] = new PersonalizationEntry(_sharedUrls, PersonalizationScope.Shared);
            }
            if ((_userUrls != null) && (_userUrls.Count != 0))
            {
                state["userUrls"] = new PersonalizationEntry(_userUrls, PersonalizationScope.User);
            }
        }
    }
}

Imports System.Collections
Imports System.ComponentModel
Imports System.Diagnostics
Imports System.Drawing
Imports System.Web
Imports System.Web.UI
Imports System.Security.Permissions
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 Class UrlListWebPart
      Inherits WebPart
      Implements IPersonalizable
      Private _sharedUrls As ArrayList
      Private _userUrls As ArrayList
      Private _listDirty As Boolean

      Private _nameTextBox As TextBox
      Private _urlTextBox As TextBox
      Private _addButton As Button
      Private _list As BulletedList


      Protected Overrides Sub CreateChildControls()
          Dim nameLabel As New Label()
          Dim urlLabel As New Label()
          Dim breakLiteral1 As New LiteralControl("<br />")
          Dim breakLiteral2 As New LiteralControl("<br />")
          Dim breakLiteral3 As New LiteralControl("<br />")

          _nameTextBox = New TextBox()
          _urlTextBox = New TextBox()
          _addButton = New Button()
          _list = New BulletedList()

          nameLabel.Text = "Name: "
          urlLabel.Text = "URL: "
          _nameTextBox.ID = "nameTextBox"
          _urlTextBox.ID = "urlTextBox"
          _addButton.Text = "Add"
          _addButton.ID = "addButton"
          AddHandler _addButton.Click, AddressOf Me.OnClickAddButton
          _list.DisplayMode = BulletedListDisplayMode.HyperLink
          _list.ID = "list"

          Controls.Add(nameLabel)
          Controls.Add(_nameTextBox)
          Controls.Add(breakLiteral1)

          Controls.Add(urlLabel)
          Controls.Add(_urlTextBox)
          Controls.Add(breakLiteral2)

          Controls.Add(_addButton)
          Controls.Add(breakLiteral3)

          Controls.Add(_list)

      End Sub


      Private Sub OnClickAddButton(ByVal sender As Object, ByVal e As EventArgs)
          Dim name As String = _nameTextBox.Text.Trim()
          Dim url As String = _urlTextBox.Text.Trim()

          Dim p As New Pair(name, url)
          If WebPartManager.Personalization.Scope = PersonalizationScope.Shared Then
              If _sharedUrls Is Nothing Then
                  _sharedUrls = New ArrayList()
              End If
              _sharedUrls.Add(p)
          Else
              If _userUrls Is Nothing Then
                  _userUrls = New ArrayList()
              End If
              _userUrls.Add(p)
          End If

          OnUrlAdded()

      End Sub


      Protected Overridable Sub OnUrlAdded()
          _listDirty = True
          ChildControlsCreated = False

      End Sub


      Protected Overrides Sub RenderContents(ByVal writer As HtmlTextWriter)
          If Not (_sharedUrls Is Nothing) Then
              Dim p As Pair
              For Each p In _sharedUrls
                  _list.Items.Add(New ListItem(CStr(p.First), CStr(p.Second)))
              Next p
          End If
          If Not (_userUrls Is Nothing) Then
              Dim p As Pair
              For Each p In _userUrls
                  _list.Items.Add(New ListItem(CStr(p.First), CStr(p.Second)))
              Next p
          End If

          MyBase.RenderContents(writer)

      End Sub


      Public Overridable ReadOnly Property IsDirty() As Boolean _
        Implements IPersonalizable.IsDirty
          Get
              Return _listDirty
          End Get
      End Property

      Public Overridable Shadows Sub Load(ByVal state As PersonalizationDictionary) _
        Implements IPersonalizable.Load
          If Not (state Is Nothing) Then
              Dim sharedUrlsEntry As PersonalizationEntry = state("sharedUrls")
              If Not (sharedUrlsEntry Is Nothing) Then
                  _sharedUrls = CType(sharedUrlsEntry.Value, ArrayList)
              End If

              Dim userUrlsEntry As PersonalizationEntry = state("userUrls")
              If Not (userUrlsEntry Is Nothing) Then
                  _userUrls = CType(userUrlsEntry.Value, ArrayList)
              End If
          End If

      End Sub

      Public Overridable Sub Save(ByVal state As PersonalizationDictionary) _
        Implements IPersonalizable.Save
          If Not (_sharedUrls Is Nothing) AndAlso _sharedUrls.Count <> 0 Then
              state("sharedUrls") = New PersonalizationEntry(_sharedUrls, PersonalizationScope.Shared)
          End If
          If Not (_userUrls Is Nothing) AndAlso _userUrls.Count <> 0 Then
              state("userUrls") = New PersonalizationEntry(_userUrls, PersonalizationScope.User)
          End If

      End Sub
  End Class


End Namespace

Lädt die Seite in einem Browser.Load the page in a browser. Geben Sie einen Namen ein, um eine URL darzustellen, und fügen Sie anschließend eine http://tatsächliche URL hinzu, und klicken Sie auf die Schaltfläche Hinzufügen , um die URL hinzuzufügen.Type in a name to represent a URL, then add an actual URL beginning with http://, and click the Add button to add the URL.

Hinweise

Zusätzlich zur Verwendung des Personalizable -Attributs für Steuerelement Eigenschaften kann ein Steuerelement auch für zusätzliche Verwaltungsfunktionen für die Anwendung und Extraktion des Personalisierungs Zustands implementieren. IPersonalizableIn addition to using the Personalizable attribute on control properties, a control can also implement IPersonalizable for additional management capabilities for the application and extraction of personalization state. Beispielsweise sollten Steuerelemente, die private Zustandsinformationen verwalten müssen, diese Schnittstelle implementieren.For example, controls that need to manage private state information should implement this interface. Steuerelemente, die über komplexe Mechanismen auf personalisierte Daten zugreifen, wie z. b. benutzerdefinierte Cache Lösungen, Daten Persistenz für Mainframes oder XML-Webdienste, sollten diese Schnittstelle ebenfalls implementieren.Controls that access personalized data through complex mechanisms, such as custom cache solutions, data persistence to mainframes, or XML Web services, should also implement this interface.

Wichtig

Sie sollten Typen nicht auf der Basis von Klassen hinzufügen, die im Verzeichnis App_Code definiert sind, und dann vom standardbinärserialisierungsmechanismus abhängig sind.You should not add types based on classes defined in the App_Code directory and then depend on the default binary serialization mechanism. App_Code-basierte Artefakte sind nicht konsistent serialisierbar, da Sie die Assemblynamen zu zufälligen Zeitpunkten ändern können.App_Code-based artifacts are not consistently binary-serializable due to the fact that they can have their assembly names changed at random points in time.

Eigenschaften

IsDirty IsDirty IsDirty IsDirty

Ruft einen Wert ab, der angibt, ob die benutzerdefinierten Daten, die ein Steuerelement verwaltet, geändert wurden.Gets a value that indicates whether the custom data that a control manages has changed.

Methoden

Load(PersonalizationDictionary) Load(PersonalizationDictionary) Load(PersonalizationDictionary) Load(PersonalizationDictionary)

Lädt benutzerdefinierte Daten in ein Steuerelement.Loads custom data into a control.

Save(PersonalizationDictionary) Save(PersonalizationDictionary) Save(PersonalizationDictionary) Save(PersonalizationDictionary)

Speichert benutzerdefinierte Eigenschaften und interne Zustandsinformationen im PersonalizationDictionary-Objekt des Steuerelements.Saves custom properties and internal state information in the control's PersonalizationDictionary object.

Gilt für: