WebPartDescription 類別

參考

定義

命名空間:: System.Web.UI.WebControls.WebParts

組件:: System.Web.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

提供 WebPart 控制項的詳細資訊，毋需建立控制項的執行個體，就能顯示在 Web 組件控制項的目錄中。

public ref class WebPartDescription

public class WebPartDescription

type WebPartDescription = class

Public Class WebPartDescription

繼承: Object
WebPartDescription

範例

下列程式代碼範例示範類別的程式 WebPartDescription 設計用法。一般而言，此類型主要是由 Web 元件控制項集使用，但此程式碼範例只是顯示主要描述屬性的基本程式設計用法。

程式代碼範例有四個部分：

使用者控制件，可讓使用者變更網頁上的顯示模式。
自定義 WebPart 控制件。
裝載其他控制件的網頁。
說明程式代碼範例的運作方式。

程式代碼範例的第一個部分是使用者控件。使用者控制件的原始碼來自另一個主題。如需使用者控件的詳細資訊，請參閱逐步解說：變更網頁元件頁面上的顯示模式主題。

<%@ 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="&nbsp;Display Mode" 
      Font-Bold="true"
      Font-Size="8"
      Width="120" 
      AssociatedControlID="DisplayModeDropdown"/>
    <div>
    <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" />
    </div>
    <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="&nbsp;Display Mode" 
      Font-Bold="true"
      Font-Size="8"
      Width="120" 
      AssociatedControlID="DisplayModeDropdown"/>
    <div>
    <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" />
    </div>
    <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>

程式代碼範例的第二個部分是自定義 WebPart 控制項。若要執行程式碼範例，您必須編譯此原始程式碼。您可以明確地編譯它，並將產生的元件放在網站的 Bin 資料夾或全域程式集緩存中。或者，您也可以將原始程式碼放在月臺的 App_Code資料夾中，在運行時間會動態編譯原始程式碼。此程式代碼範例會使用動態編譯的方法。如需示範如何編譯的逐步解說，請參閱逐步解說：開發和使用自定義 Web 伺服器控制件。

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

namespace Samples.AspNet.CS.Controls
{
  [AspNetHostingPermission(SecurityAction.Demand,
    Level = AspNetHostingPermissionLevel.Minimal)]
  [AspNetHostingPermission(SecurityAction.InheritanceDemand,
    Level = AspNetHostingPermissionLevel.Minimal)]
  public class TextDisplayWebPart : WebPart
  {
    private String _contentText = null;
    TextBox input;
    Label DisplayContent;
    Literal lineBreak;

    [Personalizable(), WebBrowsable]
    public String ContentText
    {
      get { return _contentText; }
      set { _contentText = value; }
    }

    protected override void CreateChildControls()
    {
      Controls.Clear();
      DisplayContent = new Label();
      DisplayContent.BackColor = Color.LightBlue;
      DisplayContent.Text = this.ContentText;
      this.Controls.Add(DisplayContent);

      lineBreak = new Literal();
      lineBreak.Text = @"<br />";
      Controls.Add(lineBreak);

      input = new TextBox();
      this.Controls.Add(input);
      Button update = new Button();
      update.Text = "Set Label Content";
      update.Click += new EventHandler(this.submit_Click);
      this.Controls.Add(update);
    }

    private void submit_Click(object sender, EventArgs e)
    {
      // Update the label string.
      if (!string.IsNullOrEmpty(input.Text))
      {
        _contentText = input.Text + @"<br />";
        input.Text = String.Empty;
        DisplayContent.Text = this.ContentText;
      }
    }
  }
}

Imports System.Collections
Imports System.ComponentModel
Imports System.Drawing
Imports System.Security.Permissions
Imports System.Web
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 Class TextDisplayWebPart
    Inherits WebPart
    Private _contentText As String = Nothing
    Private _fontStyle As String = Nothing
    Private input As TextBox
    Private DisplayContent As Label
    Private lineBreak As Literal

    <Personalizable(), WebBrowsable()> _
    Public Property ContentText() As String
      Get
        Return _contentText
      End Get
      Set(ByVal value As String)
        _contentText = value
      End Set
    End Property

    Protected Overrides Sub CreateChildControls()
      Controls.Clear()
      DisplayContent = New Label()
      DisplayContent.BackColor = Color.LightBlue
      DisplayContent.Text = Me.ContentText
      Me.Controls.Add(DisplayContent)

      lineBreak = New Literal()
      lineBreak.Text = "<br />"
      Controls.Add(lineBreak)

      input = New TextBox()
      Me.Controls.Add(input)
      Dim update As New Button()
      update.Text = "Set Label Content"
      AddHandler update.Click, AddressOf Me.submit_Click
      Me.Controls.Add(update)

    End Sub

    Private Sub submit_Click(ByVal sender As Object, _
                             ByVal e As EventArgs)
      ' Update the label string.
      If input.Text <> String.Empty Then
        _contentText = input.Text + "<br />"
        input.Text = String.Empty
        DisplayContent.Text = Me.ContentText
      End If

    End Sub

  End Class

End Namespace

程式代碼範例的第三個部分是網頁。頂端附近有兩 Register 個指示詞：一個會註冊使用者控件，另一個指示詞則是註冊來源檔案位於網站之App_Code資料夾中的自定義 WebPart 控件。頁面包含一個元素，接著包含兩個<asp:catalogzone>控件的宣告式參考：名為TextDisplayWebPart的自定義WebPart控件，以及BulletedList將在運行時間視為WebPart控件的Web伺服器控件，因為WebPartManager控件會用 GenericWebPart 物件包裝它。請注意，在方法的程式代碼Button1_Click中，會使用 GetAvailableWebPartDescriptions 方法擷取目錄中控件的可用WebPartDescription物件WebPart，然後描述詳細數據都會寫到頁面。

<%@ 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">

  // <snippet2>
  protected void Button1_Click(object sender, EventArgs e)
  {
    Label1.Text = String.Empty;
    
    WebPartDescriptionCollection descriptions = 
      DeclarativeCatalogPart1.GetAvailableWebPartDescriptions();

    foreach (WebPartDescription desc in descriptions)
    {
      Label1.Text += "ID: " + desc.ID + "<br />" +
        "Title: " + desc.Title + "<br />" +
        "Description: " + desc.Description + "<br />" +
        "ImageUrl: " + desc.CatalogIconImageUrl + "<br />" +
        "<hr />";
    }
  }
  // </snippet2>

  protected void Page_PreRender(object sender, EventArgs e)
  {
    if (mgr1.DisplayMode == WebPartManager.CatalogDisplayMode)
    {
      Button1.Visible = true;
      Label1.Visible = true;
    }
    else
    {
      Button1.Visible = false;
      Label1.Visible = false;
    }
  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
  <title>Untitled Page</title>
</head>
<body>
  <form id="form1" runat="server">
    <asp:WebPartManager ID="mgr1" runat="server">
    </asp:WebPartManager>
    <uc1:DisplayModeMenuCS ID="menu1" runat="server" />
    <asp:WebPartZone ID="WebPartZone1" runat="server">
      <ZoneTemplate>
        <asp:Calendar ID="Calendar1" runat="server"></asp:Calendar>
      </ZoneTemplate>
    </asp:WebPartZone>
    <asp:CatalogZone ID="CatalogZone1" runat="server">
      <ZoneTemplate>
        <asp:DeclarativeCatalogPart ID="DeclarativeCatalogPart1" runat="server">
          <WebPartsTemplate>
            <aspSample:TextDisplayWebPart ID="txtDisplayWebPart1" runat="server"
              Title="Text Display"
              Description="Displays entered text in a label control."
              CatalogIconImageUrl="MyWebPartIcon.gif" 
              />
            <asp:BulletedList 
              ID="BulletedList1"
              Runat="server"
              DisplayMode="HyperLink" 
              Title="Favorite Links"
              CatalogIconImageUrl="MyLinksIcon.gif"
              Description="My Favorite Links">
              <asp:ListItem Value="http://msdn.microsoft.com">
                MSDN
              </asp:ListItem>
              <asp:ListItem Value="http://www.asp.net">
                ASP.NET
              </asp:ListItem>
              <asp:ListItem Value="http://www.msn.com">
                MSN
              </asp:ListItem>
            </asp:BulletedList>
          </WebPartsTemplate>
        </asp:DeclarativeCatalogPart>
      </ZoneTemplate>
    </asp:CatalogZone> 
    <hr />
    <asp:Button ID="Button1" runat="server" 
      Text="List WebPartDescription Info" OnClick="Button1_Click" /> 
    <br />
    <asp:Label ID="Label1" runat="server" Text="" />
    <div>
    </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">

  ' <snippet2>
  Protected Sub Button1_Click(ByVal sender As Object, _
    ByVal e As System.EventArgs)
    
    Label1.Text = String.Empty
        
    Dim descriptions As WebPartDescriptionCollection = _
     DeclarativeCatalogPart1.GetAvailableWebPartDescriptions()
            
    Dim desc As WebPartDescription
        
    For Each desc In descriptions
      Label1.Text += "ID: " & desc.ID & "<br />" & _
        "Title: " & desc.Title & "<br />" & _
        "Description: " & desc.Description & "<br />" & _
        "ImageUrl: " & desc.CatalogIconImageUrl & "<br />" & _
        "<hr />"
    Next
    
  End Sub
  ' </snippet2>

  Protected Sub Page_PreRender(ByVal sender As Object, _
    ByVal e As System.EventArgs)
        
    If mgr1.DisplayMode Is WebPartManager.CatalogDisplayMode Then
      Button1.Visible = True
      Label1.Visible = True
    Else
      Button1.Visible = False
      Label1.Visible = False
    End If
        
  End Sub


</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
  <title>Untitled Page</title>
</head>
<body>
  <form id="form1" runat="server">
    <asp:WebPartManager ID="mgr1" runat="server">
    </asp:WebPartManager>
    <uc1:DisplayModeMenuVB ID="menu1" runat="server" />
    <asp:WebPartZone ID="WebPartZone1" runat="server">
      <ZoneTemplate>
        <asp:Calendar ID="Calendar1" runat="server"></asp:Calendar>
      </ZoneTemplate>
    </asp:WebPartZone>
    <asp:CatalogZone ID="CatalogZone1" runat="server">
      <ZoneTemplate>
        <asp:DeclarativeCatalogPart ID="DeclarativeCatalogPart1" runat="server">
          <WebPartsTemplate>
            <aspSample:TextDisplayWebPart ID="txtDisplayWebPart1" runat="server"
              Title="Text Display"
              Description="Displays entered text in a label control."
              CatalogIconImageUrl="MyWebPartIcon.gif" 
              />
            <asp:BulletedList 
              ID="BulletedList1"
              Runat="server"
              DisplayMode="HyperLink" 
              Title="Favorite Links"
              CatalogIconImageUrl="MyLinksIcon.gif"
              Description="My Favorite Links">
              <asp:ListItem Value="http://msdn.microsoft.com">
                MSDN
              </asp:ListItem>
              <asp:ListItem Value="http://www.asp.net">
                ASP.NET
              </asp:ListItem>
              <asp:ListItem Value="http://www.msn.com">
                MSN
              </asp:ListItem>
            </asp:BulletedList>
          </WebPartsTemplate>
        </asp:DeclarativeCatalogPart>
      </ZoneTemplate>
    </asp:CatalogZone> 
    <hr />
    <asp:Button ID="Button1" runat="server" 
      Text="List WebPartDescription Info" OnClick="Button1_Click" /> 
    <br />
    <asp:Label ID="Label1" runat="server" Text="" />
    <div>
    </div>
  </form>
</body>
</html>

在瀏覽器中載入頁面之後，請使用 [顯示模式 ] 下拉式清單控件，然後選取 [ 目錄 ] 將頁面變更為目錄顯示模式。在目錄中，您應該會看到兩個可用來新增至頁面的控件。按兩下 [列出 WebPartDescription 資訊] 按鈕，程式代碼會將所有可用 WebPartDescription 物件的值寫出到頁面。這示範您可以擷 WebPart 取目錄中控件的描述詳細數據，而不需要建立控件本身的實例。

備註

當控件顯示在使用者可以新增至頁面的控件目錄中時 WebPart ，需要每個控件的一些基本資訊。例如，擁有控件的標題和描述很有用，因此當用戶檢視目錄時，他們有足夠的資訊可決定是否要將控件新增至頁面。不過，控件目錄 WebPart 可能會包含許多控件，而且如果必須建立每個 WebPart 控件的實例，以擷取要顯示在目錄中的資訊，它可能會影響應用程式的效能。

類別 WebPartDescription 存在，因此不需要建立控件的 WebPart 實例，即可擷取控件目錄中所顯示之控件的相關信息。在網頁元件控件集中，當頁面處於目錄顯示模式時， WebPartDescription 也會搭配各種 CatalogPart 控件使用物件。

類別WebPartDescription有兩個建構函式的多載，一個在建構函式) (WebPartDescription 提供實例時，採用WebPart控件做為參數的一個多載，另一個會採用數個字元串，其中包含控件的相關信息做為參數， (WebPartDescription 建構函式) 。

類別 WebPartDescription 也有數個屬性，其設計目的是要包含控件的描述資訊 WebPart 。下表摘要說明 WebPartDescription 屬性，以及控件中 WebPart 每個屬性對應的屬性。

Description 屬性	相關元件控件屬性
ID	ID
Title	Title
Description	Description
CatalogIconImageUrl	CatalogIconImageUrl

建構函式

WebPartDescription(String, String, String, String)	使用包含 WebPart 控制項描述資訊的數個字串初始化類別的新執行個體。
WebPartDescription(WebPart)	有 WebPart 控制項執行個體可用時初始化新的類別執行個體。

屬性

CatalogIconImageUrl	取得 URL，其中包含至用做 WebPart 控制項圖示影像的路徑。
Description	取得 WebPart 控制項的描述文字。
ID	取得相對應 WebPart 控制項的 ID。
Title	取得相對應 WebPart 控制項的標題文字。

方法

Equals(Object)	判斷指定的物件是否等於目前的物件。 (繼承來源 Object)
GetHashCode()	做為預設雜湊函式。 (繼承來源 Object)
GetType()	取得目前執行個體的 Type。 (繼承來源 Object)
MemberwiseClone()	建立目前 Object 的淺層複製。 (繼承來源 Object)
ToString()	傳回代表目前物件的字串。 (繼承來源 Object)

適用於

共用方式為

WebPartDescription 類別

定義

範例

備註

建構函式

屬性

方法

適用於

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