UpdateProgress Class

Definition

更新一个或多个 UpdatePanel 控件的内容时,在浏览器中提供可视反馈。Provides visual feedback in the browser when the contents of one or more UpdatePanel controls are updated.

public ref class UpdateProgress : System::Web::UI::Control, System::Web::UI::IScriptControl
public ref class UpdateProgress : System::Web::UI::Control, System::Web::UI::IAttributeAccessor, System::Web::UI::IScriptControl
[System.Drawing.ToolboxBitmap(typeof(EmbeddedResourceFinder), "System.Web.Resources.UpdateProgress.bmp")]
public class UpdateProgress : System.Web.UI.Control, System.Web.UI.IScriptControl
[System.Drawing.ToolboxBitmap(typeof(EmbeddedResourceFinder), "System.Web.Resources.UpdateProgress.bmp")]
public class UpdateProgress : System.Web.UI.Control, System.Web.UI.IAttributeAccessor, System.Web.UI.IScriptControl
type UpdateProgress = class
    inherit Control
    interface IScriptControl
type UpdateProgress = class
    inherit Control
    interface IAttributeAccessor
    interface IScriptControl
Public Class UpdateProgress
Inherits Control
Implements IScriptControl
Public Class UpdateProgress
Inherits Control
Implements IAttributeAccessor, IScriptControl
Inheritance
UpdateProgress
Attributes
Implements

Examples

下面的示例演示了使用 UpdateProgress 控件在异步回发过程中显示进度的不同方法。The following examples show different ways to use the UpdateProgress control to show progress during asynchronous postbacks.

下面的示例演示一个 UpdateProgress 控件,该控件显示两个 UpdatePanel 控件的进度状态。The following example shows one UpdateProgress control that displays progress status for two UpdatePanel controls.

<%@ Page Language="C#" %>

<!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 Button_Click(object sender, EventArgs e)
    {
        System.Threading.Thread.Sleep(3000);
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>UpdateProgress Example</title>
    <style type="text/css">
    #UpdatePanel1, #UpdatePanel2, #UpdateProgress1 { 
      border-right: gray 1px solid; border-top: gray 1px solid; 
      border-left: gray 1px solid; border-bottom: gray 1px solid;
    }
    #UpdatePanel1, #UpdatePanel2 { 
      width:200px; height:200px; position: relative;
      float: left; margin-left: 10px; margin-top: 10px;
     }
     #UpdateProgress1 {
      width: 400px; background-color: #FFC080; 
      bottom: 0%; left: 0px; position: absolute;
     }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:ScriptManager ID="ScriptManager1" runat="server" />
    <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button1" runat="server" Text="Refresh Panel" OnClick="Button_Click" />    
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button2" runat="server" Text="Refresh Panel" OnClick="Button_Click"/>    
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdateProgress ID="UpdateProgress1" runat="server">
    <ProgressTemplate>
      Update in progress...
    </ProgressTemplate>
    </asp:UpdateProgress>
    </div>
    </form>
</body>
</html>
<%@ Page Language="VB" %>

<!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 Button_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        System.Threading.Thread.Sleep(3000)
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>UpdateProgress Example</title>
    <style type="text/css">
    #UpdatePanel1, #UpdatePanel2, #UpdateProgress1 { 
      border-right: gray 1px solid; border-top: gray 1px solid; 
      border-left: gray 1px solid; border-bottom: gray 1px solid;
    }
    #UpdatePanel1, #UpdatePanel2 { 
      width:200px; height:200px; position: relative;
      float: left; margin-left: 10px; margin-top: 10px;
     }
     #UpdateProgress1 {
      width: 400px; background-color: #FFC080; 
      bottom: 0%; left: 0px; position: absolute;
     }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:ScriptManager ID="ScriptManager1" runat="server" />
    <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button1" runat="server" Text="Refresh Panel" OnClick="Button_Click" />    
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button2" runat="server" Text="Refresh Panel" OnClick="Button_Click"/>    
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdateProgress ID="UpdateProgress1" runat="server">
    <ProgressTemplate>
      Update in progress...
    </ProgressTemplate>
    </asp:UpdateProgress>
    </div>
    </form>
</body>
</html>

下面的示例演示两个 UpdateProgress 控件。This following example shows two UpdateProgress controls. 每个控件都显示关联 UpdatePanel 控件的进度状态。Each control displays progress status for an associated UpdatePanel control.

<%@ Page Language="C#" %>

<!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 Button_Click(object sender, EventArgs e)
    {
        System.Threading.Thread.Sleep(3000);
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>UpdateProgress Example</title>
    <style type="text/css">
    #UpdatePanel1, #UpdatePanel2 { 
      width:200px; height:200px; position: relative;
      float: left; margin-left: 10px; margin-top: 10px;
      border-right: gray 1px solid; border-top: gray 1px solid; 
      border-left: gray 1px solid; border-bottom: gray 1px solid;
     }
     #UpdateProgress1, #UpdateProgress2 {
      width: 200px; background-color: #FFC080;
      position: absolute; bottom: 0px; left: 0px;
     }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:ScriptManager ID="ScriptManager1" runat="server" />
    <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button1" runat="server" Text="Refresh Panel" OnClick="Button_Click" />    
    <asp:UpdateProgress ID="UpdateProgress1" AssociatedUpdatePanelID="UpdatePanel1" runat="server">
    <ProgressTemplate>
      UpdatePanel1 updating...
    </ProgressTemplate>
    </asp:UpdateProgress>
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button2" runat="server" Text="Refresh Panel" OnClick="Button_Click"/>    
    <asp:UpdateProgress ID="UpdateProgress2" AssociatedUpdatePanelID="UpdatePanel2" runat="server">
    <ProgressTemplate>
      UpdatePanel2 updating...
    </ProgressTemplate>
    </asp:UpdateProgress>
    </ContentTemplate>
    </asp:UpdatePanel>
    </div>
    </form>
</body>
</html>
<%@ Page Language="VB" %>

<!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 Button_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        System.Threading.Thread.Sleep(3000)
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>UpdateProgress Example</title>
    <style type="text/css">
    #UpdatePanel1, #UpdatePanel2 { 
      width:200px; height:200px; position: relative;
      float: left; margin-left: 10px; margin-top: 10px;
      border-right: gray 1px solid; border-top: gray 1px solid; 
      border-left: gray 1px solid; border-bottom: gray 1px solid;
     }
     #UpdateProgress1, #UpdateProgress2 {
      width: 200px; background-color: #FFC080;
      position: absolute; bottom: 0px; left: 0px;
     }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:ScriptManager ID="ScriptManager1" runat="server" />
    <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button1" runat="server" Text="Refresh Panel" OnClick="Button_Click" />    
    <asp:UpdateProgress ID="UpdateProgress1" AssociatedUpdatePanelID="UpdatePanel1" runat="server">
    <ProgressTemplate>
      UpdatePanel1 updating...
    </ProgressTemplate>
    </asp:UpdateProgress>
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button2" runat="server" Text="Refresh Panel" OnClick="Button_Click"/>    
    <asp:UpdateProgress ID="UpdateProgress2" AssociatedUpdatePanelID="UpdatePanel2" runat="server">
    <ProgressTemplate>
      UpdatePanel2 updating...
    </ProgressTemplate>
    </asp:UpdateProgress>
    </ContentTemplate>
    </asp:UpdatePanel>
    </div>
    </form>
</body>
</html>

Remarks

本主题内容:In this topic:

介绍Introduction

UpdateProgress 控件可提供有关部分页面呈现进度的反馈。The UpdateProgress control enables you to provide feedback about the progress of partial-page rendering. 对于回发或初始页面呈现,不会显示 UpdateProgress 控件内容。For postbacks or initial page rendering, UpdateProgress control content is not displayed.

页面可包含多个 UpdateProgress 控件。The page can contain multiple UpdateProgress controls. 每个控件都可以与不同 UpdatePanel 控件关联。Each one can be associated with a different UpdatePanel control. 或者,您可以使用一个 UpdateProgress 控件,并将其与页面上的所有 UpdatePanel 控件相关联。Alternatively, you can use one UpdateProgress control and associate it with all the UpdatePanel controls on the page.

UpdateProgress 控件将呈现一个显示或隐藏的 div 元素,具体取决于回发源自的位置以及是否设置了 UpdateProgress 控件的 AssociatedUpdatePanelID 属性。The UpdateProgress control renders a div element that is displayed or hidden depending on where a postback originates and whether the AssociatedUpdatePanelID property of the UpdateProgress control is set.

将 UpdateProgress 与 UpdatePanel 控件关联Associating an UpdateProgress with an UpdatePanel Control

通过设置 UpdateProgress 控件的 AssociatedUpdatePanelID 属性,将 UpdateProgress 控件与 UpdatePanel 控件相关联。You associate UpdateProgress controls with an UpdatePanel control by setting the AssociatedUpdatePanelID property of the UpdateProgress control. 当回发事件源自 UpdatePanel 控件中时,将显示任何关联的 UpdateProgress 控件。When a postback event originates from inside an UpdatePanel control, any associated UpdateProgress controls are displayed. 如果未设置 AssociatedUpdatePanelID 属性,则 UpdateProgress 控件将显示源自任何 UpdatePanel 控件内的任何异步回发的进度。If you do not set the AssociatedUpdatePanelID property, the UpdateProgress control displays progress for any asynchronous postback that originates from inside any UpdatePanel control. 它也会显示为面板触发器的任何控件。It is also displayed for any controls that are triggers for panels.

AssociatedUpdatePanelID 属性对 UpdateProgress 控制行为具有以下影响:The AssociatedUpdatePanelID property has the following effect on UpdateProgress control behavior:

如果 AssociatedUpdatePanelID 属性设置为不存在的控件,则将永远不会显示 UpdateProgress 控件。If the AssociatedUpdatePanelID property is set to a control that does not exist, the UpdateProgress control will never be shown.

如果 UpdatePanel 控件的 ChildrenAsTriggers 属性设置为 false,而回发源自 UpdatePanel 控件内,则仍将显示任何关联的 UpdateProgress 控件。If the ChildrenAsTriggers property of the UpdatePanel controls is set to false and a postback originates from inside an UpdatePanel control, any associated UpdateProgress controls will still be displayed.

指定 UpdateProgress 控件的内容Specifying the Content of the UpdateProgress Control

使用 ProgressTemplate 属性指定 UpdateProgress 控件显示的消息。Use the ProgressTemplate property to specify the message that is displayed by an UpdateProgress control. 如果 ProgressTemplate 属性为空,则显示 UpdateProgress 控件时不显示任何内容。If the ProgressTemplate property is empty, nothing is shown when the UpdateProgress control is displayed.

模板可以包含 HTML 和标记。The template can contain HTML and markup. 例如,可以显示一个动画图像,用于通知用户回发正在处理。For example, you can display an animated image that notifies the user that the postback is processing. 还可以显示一个按钮,用户可以单击该按钮来停止部分页面更新。You can also display a button that the user can click to stop the partial-page update. 此外,您可能还希望在一个回发过程中阻止其他所有回发。Additionally, you might want to prevent all other postbacks while one is in progress. 下面的示例演示可用于完成这些任务的客户端脚本。The following example shows client script that you can use to accomplish these tasks.

<%@ Page Language="C#" %>

<!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 Button_Click(object sender, EventArgs e)
    {
        System.Threading.Thread.Sleep(3000);
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>UpdateProgress Example</title>
    <style type="text/css">
    #UpdatePanel1, #UpdatePanel2, #UpdateProgress1 {
      border-right: gray 1px solid; border-top: gray 1px solid; 
      border-left: gray 1px solid; border-bottom: gray 1px solid;    
    }
    #UpdatePanel1, #UpdatePanel2 { 
      width:200px; height:200px; position: relative;
      float: left; margin-left: 10px; margin-top: 10px;
     }
     #UpdateProgress1 {
      width: 400px; background-color: #FFC080; 
      bottom: 0%; left: 0px; position: absolute;
     }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:ScriptManager ID="ScriptManager1" runat="server" />
    <script type="text/javascript">
    var prm = Sys.WebForms.PageRequestManager.getInstance();
    prm.add_initializeRequest(InitializeRequest);
    function InitializeRequest(sender, args) {
      if (prm.get_isInAsyncPostBack())
       {
          args.set_cancel(true);
       }
    }
    function AbortPostBack() {
      if (prm.get_isInAsyncPostBack()) {
           prm.abortPostBack();
      }        
    }
    </script>
    <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button1" runat="server" Text="Refresh Panel" OnClick="Button_Click" />    
    <br />
    Clicking the button while an asynchronous postback is in progress will
    cancel the new postback. New postbacks are only allowed if one is not
    already in progress.
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button2" runat="server" Text="Refresh Panel" OnClick="Button_Click"/>    
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdateProgress ID="UpdateProgress1" runat="server">
    <ProgressTemplate>
      Update in progress...
      <input type="button" value="stop" onclick="AbortPostBack()" />
    </ProgressTemplate>
    </asp:UpdateProgress>
    </div>
    </form>
</body>
</html>
<%@ Page Language="VB" %>

<!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 Button_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        System.Threading.Thread.Sleep(3000)
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>UpdateProgress Example</title>
    <style type="text/css">
    #UpdatePanel1, #UpdatePanel2, #UpdateProgress1 {
      border-right: gray 1px solid; border-top: gray 1px solid; 
      border-left: gray 1px solid; border-bottom: gray 1px solid;    
    }
    #UpdatePanel1, #UpdatePanel2 { 
      width:200px; height:200px; position: relative;
      float: left; margin-left: 10px; margin-top: 10px;
     }
     #UpdateProgress1 {
      width: 400px; background-color: #FFC080; 
      bottom: 0%; left: 0px; position: absolute;
     }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:ScriptManager ID="ScriptManager1" runat="server" />
    <script type="text/javascript">
    var prm = Sys.WebForms.PageRequestManager.getInstance();
    prm.add_initializeRequest(InitializeRequest);
    function InitializeRequest(sender, args) {
      if (prm.get_isInAsyncPostBack())
       {
          args.set_cancel(true);
       }
    }
    function AbortPostBack() {
      if (prm.get_isInAsyncPostBack()) {
           prm.abortPostBack();
      }        
    }
    </script>
    <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button1" runat="server" Text="Refresh Panel" OnClick="Button_Click" />    
    <br />
    Clicking the button while an asynchronous postback is in progress will
    cancel the new postback. New postbacks are only allowed if one is not
    already in progress.
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    <%=DateTime.Now.ToString() %> <br />
    <asp:Button ID="Button2" runat="server" Text="Refresh Panel" OnClick="Button_Click"/>    
    </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdateProgress ID="UpdateProgress1" runat="server">
    <ProgressTemplate>
      Update in progress...
      <input type="button" value="stop" onclick="AbortPostBack()" />
    </ProgressTemplate>
    </asp:UpdateProgress>
    </div>
    </form>
</body>
</html>

可以通过将 HtmlButton 控件的 onClick 特性设置为 "AbortPostBack ()" 来使用示例代码。You can use the example code by setting the onClick attribute of an HtmlButton control to "AbortPostBack()". 有关详细信息,请参阅类的方法和属性。For more information, see the method and the property of the class.

将 UpdateProgress 控件置于页面上Putting UpdateProgress Controls on the Page

UpdateProgress 控件可以在其他 UpdatePanel 控件内部或外部。UpdateProgress controls can be inside or outside other UpdatePanel controls. UpdateProgress 控件的模板的显示不依赖于 UpdateProgress 控件所在的位置。The display of the UpdateProgress control's template does not depend on where the UpdateProgress control is located. 在嵌套 UpdatePanel 控件中,子面板位于父面板中。In a nested UpdatePanel control, a child panel is inside a parent panel. 在这种情况下,从子面板内部产生的回发将导致显示与子面板关联的所有 UpdateProgress 控件和父面板。In that case, a postback that originates from inside the child panel causes all UpdateProgress controls associated with the child panel and the parent panel to be displayed. 如果回发源自父面板的直接子控件,则只显示与父面板关联的 UpdateProgress 控件。If a postback originates from an immediate child control of the parent panel, only the UpdateProgress controls that are associated with the parent panel are displayed.

自定义 UpdateProgress 控件的显示时间Customizing When UpdateProgress Controls Are Displayed

默认情况下,UpdateProgress 控件在显示其内容之前将等待0.5 秒(500毫秒)。By default, the UpdateProgress control waits .5 seconds (500 milliseconds) before it displays its contents. 如果异步回发速度非常快,这有助于防止控件闪烁。This helps prevent the control from flashing if an asynchronous postback is very quick. 可以通过设置 DisplayAfter 属性来指定延迟时间。You can specify the delay by setting the DisplayAfter property.

如果需要更精细地控制何时显示 UpdateProgress 控件,可以为类的和事件提供客户端脚本。If you need finer control over when an UpdateProgress control is displayed, you can provide client script for the and events of the class. beginRequest 事件处理程序中,您可以显示表示 UpdateProgress 控件的 DOM 元素。In the beginRequest event handler, you can display the DOM element that represents the UpdateProgress control. endRequest 事件处理程序中,您可以隐藏它。In the endRequest event handler, you can hide it.

在以下情况下更新目标 UpdatePanel 控件时,必须提供客户端脚本以显示 UpdateProgress 控件:You must provide client script to display an UpdateProgress control when a target UpdatePanel control is updated in the following circumstances:

应用 CSS 样式Applying CSS Styles

UpdateProgress 控件接受 expando 特性。The UpdateProgress control accepts expando attributes. 这样就可以在控件呈现的 HTML 元素上设置一个 CSS 类。This makes it possible to set a CSS class on the HTML elements that the controls render. 例如,你可能会创建以下示例中所示的标记:For example, you might create the markup shown in the following example:

<asp:UpdateProgress runat="server" class="myStyle">  
</asp: UpdateProgress>   

当页面运行时,上一示例中的标记将呈现类似于以下内容的 HTML:The markup in the previous example renders HTML similar to the following when the page runs:

<div id="ctl00_MainContent_UpdateProgress1" class="myStyle">  
</div>  

声明性语法Declarative Syntax

<asp:UpdateProgress  
    AssociatedUpdatePanelID="string"  
    DisplayAfter="integer"  
    DynamicLayout="True|False"  
    EnableTheming="True|False"  
    EnableViewState="True|False"  
    ID="string"  
    OnDataBinding="DataBinding event handler"  
    OnDisposed="Disposed event handler"  
    OnInit="Init event handler"  
    OnLoad="Load event handler"  
    OnPreRender="PreRender event handler"  
    OnUnload="Unload event handler"  
    runat="server"  
    SkinID="string"  
    Visible="True|False"  
>  
        <ProgressTemplate>  
            <!-- child controls -->  
        </ProgressTemplate>  
</asp:UpdateProgress>  

Constructors

UpdateProgress()

初始化 UpdateProgress 类的新实例。Initializes a new instance of the UpdateProgress class.

Properties

Adapter

获取控件的浏览器特定适配器。Gets the browser-specific adapter for the control.

(Inherited from Control)
AppRelativeTemplateSourceDirectory

获取或设置包含该控件的 PageUserControl 对象的应用程序相对虚拟目录。Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control.

(Inherited from Control)
AssociatedUpdatePanelID

获取或设置 UpdatePanel 控件显示其状态的 UpdateProgress 控件的 ID。Gets or sets the ID of the UpdatePanel control that the UpdateProgress control displays status for.

Attributes

获取或设置 UpdateProgress 控件的级联样式表 (CSS) 特性。Gets or sets the cascading style sheet (CSS) attributes of the UpdateProgress control.

BindingContainer

获取包含该控件的数据绑定的控件。Gets the control that contains this control's data binding.

(Inherited from Control)
ChildControlsCreated

获取一个值,该值指示是否已创建服务器控件的子控件。Gets a value that indicates whether the server control's child controls have been created.

(Inherited from Control)
ClientID

获取由 ASP.NET 生成的 HTML 标记的控件 ID。Gets the control ID for HTML markup that is generated by ASP.NET.

(Inherited from Control)
ClientIDMode

获取或设置用于生成 ClientID 属性值的算法。Gets or sets the algorithm that is used to generate the value of the ClientID property.

(Inherited from Control)
ClientIDSeparator

获取一个字符值,该值表示 ClientID 属性中使用的分隔符字符。Gets a character value representing the separator character used in the ClientID property.

(Inherited from Control)
Context

为当前 Web 请求获取与服务器控件关联的 HttpContext 对象。Gets the HttpContext object associated with the server control for the current Web request.

(Inherited from Control)
Controls

获取一个 ControlCollection 对象,该对象表示 UpdateProgress 控件的子控件。Gets a ControlCollection object that represents the child controls of the UpdateProgress control.

DataItemContainer

如果命名容器实现 IDataItemContainer,则获取对命名容器的引用。Gets a reference to the naming container if the naming container implements IDataItemContainer.

(Inherited from Control)
DataKeysContainer

如果命名容器实现 IDataKeysControl,则获取对命名容器的引用。Gets a reference to the naming container if the naming container implements IDataKeysControl.

(Inherited from Control)
DesignMode

获取一个值,该值指示是否正在使用设计图面上的一个控件。Gets a value indicating whether a control is being used on a design surface.

(Inherited from Control)
DisplayAfter

获取或设置显示 UpdateProgress 控件之前所经过的时间值(以毫秒为单位)。Gets or sets the value in milliseconds before the UpdateProgress control is displayed.

DynamicLayout

获取或设置一个值,该值可确定是否动态呈现进度模板。Gets or sets a value that determines whether the progress template is rendered dynamically.

EnableTheming

获取或设置一个值,该值指示主题是否应用于该控件。Gets or sets a value indicating whether themes apply to this control.

(Inherited from Control)
EnableViewState

获取或设置一个值,该值指示服务器控件是否向发出请求的客户端保持自己的视图状态以及它所包含的任何子控件的视图状态。Gets or sets a value indicating whether the server control persists its view state, and the view state of any child controls it contains, to the requesting client.

(Inherited from Control)
Events

获取控件的事件处理程序委托列表。Gets a list of event handler delegates for the control. 此属性为只读。This property is read-only.

(Inherited from Control)
HasChildViewState

获取一个值,该值指示当前服务器控件的子控件是否具有任何已保存的视图状态设置。Gets a value indicating whether the current server control's child controls have any saved view-state settings.

(Inherited from Control)
ID

获取或设置分配给服务器控件的编程标识符。Gets or sets the programmatic identifier assigned to the server control.

(Inherited from Control)
IdSeparator

获取用于分隔控件标识符的字符。Gets the character used to separate control identifiers.

(Inherited from Control)
IsChildControlStateCleared

获取一个值,该值指示该控件中包含的控件是否具有控件状态。Gets a value indicating whether controls contained within this control have control state.

(Inherited from Control)
IsTrackingViewState

获取一个值,用于指示服务器控件是否会将更改保存到其视图状态中。Gets a value that indicates whether the server control is saving changes to its view state.

(Inherited from Control)
IsViewStateEnabled

获取一个值,该值指示是否为该控件启用了视图状态。Gets a value indicating whether view state is enabled for this control.

(Inherited from Control)
LoadViewStateByID

获取一个值,该值指示控件是否通过 ID 而不是索引参与加载其视图状态。Gets a value indicating whether the control participates in loading its view state by ID instead of index.

(Inherited from Control)
NamingContainer

获取对服务器控件的命名容器的引用,此引用创建唯一的命名空间,以区分具有相同 ID 属性值的服务器控件。Gets a reference to the server control's naming container, which creates a unique namespace for differentiating between server controls with the same ID property value.

(Inherited from Control)
Page

获取对包含服务器控件的 Page 实例的引用。Gets a reference to the Page instance that contains the server control.

(Inherited from Control)
Parent

获取对页 UI 层次结构中服务器控件的父控件的引用。Gets a reference to the server control's parent control in the page control hierarchy.

(Inherited from Control)
ProgressTemplate

获取或设置用于定义 UpdateProgress 控件内容的模板。Gets or sets the template that defines the content of the UpdateProgress control.

RenderingCompatibility

获取一个值,该值指定呈现的 HTML 将与之兼容的 ASP.NET 版本。Gets a value that specifies the ASP.NET version that rendered HTML will be compatible with.

(Inherited from Control)
Site

获取容器信息,该容器在呈现于设计图面上时承载当前控件。Gets information about the container that hosts the current control when rendered on a design surface.

(Inherited from Control)
SkinID

获取或设置要应用于控件的外观。Gets or sets the skin to apply to the control.

(Inherited from Control)
TemplateControl

获取或设置对包含该控件的模板的引用。Gets or sets a reference to the template that contains this control.

(Inherited from Control)
TemplateSourceDirectory

获取包含当前服务器控件的 PageUserControl 的虚拟目录。Gets the virtual directory of the Page or UserControl that contains the current server control.

(Inherited from Control)
UniqueID

获取服务器控件的唯一的、以分层形式限定的标识符。Gets the unique, hierarchically qualified identifier for the server control.

(Inherited from Control)
ValidateRequestMode

获取或设置指示控件是否检查来自浏览器的客户端输入是否具有潜在危险值的值。Gets or sets a value that indicates whether the control checks client input from the browser for potentially dangerous values.

(Inherited from Control)
ViewState

获取状态信息的字典,这些信息使您可以在同一页的多个请求间保存和还原服务器控件的视图状态。Gets a dictionary of state information that allows you to save and restore the view state of a server control across multiple requests for the same page.

(Inherited from Control)
ViewStateIgnoresCase

获取一个值,该值指示 StateBag 对象是否不区分大小写。Gets a value that indicates whether the StateBag object is case-insensitive.

(Inherited from Control)
ViewStateMode

获取或设置此控件的视图状态模式。Gets or sets the view-state mode of this control.

(Inherited from Control)
Visible

获取或设置一个值,该值指示服务器控件是否作为 UI 呈现在页上。Gets or sets a value that indicates whether a server control is rendered as UI on the page.

(Inherited from Control)

Methods

AddedControl(Control, Int32)

在子控件添加到 Control 对象的 Controls 集合后调用。Called after a child control is added to the Controls collection of the Control object.

(Inherited from Control)
AddParsedSubObject(Object)

通知服务器控件,分析了一个元素(XML 或 HTML),并将该元素添加到服务器控件的 ControlCollection 对象中。Notifies the server control that an element, either XML or HTML, was parsed, and adds the element to the server control's ControlCollection object.

(Inherited from Control)
ApplyStyleSheetSkin(Page)

将页样式表中定义的样式属性应用到控件。Applies the style properties defined in the page style sheet to the control.

(Inherited from Control)
BeginRenderTracing(TextWriter, Object)

开始输出数据的设计时追踪。Begins design-time tracing of rendering data.

(Inherited from Control)
BuildProfileTree(String, Boolean)

收集有关服务器控件的信息并将该信息发送到 Trace 属性,在启用页的跟踪功能时将显示该属性。Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page.

(Inherited from Control)
ClearCachedClientID()

将缓存的 ClientID 值设置为 nullSets the cached ClientID value to null.

(Inherited from Control)
ClearChildControlState()

删除服务器控件的子控件的控件状态信息。Deletes the control-state information for the server control's child controls.

(Inherited from Control)
ClearChildState()

删除服务器控件的所有子控件的视图状态和控件状态信息。Deletes the view-state and control-state information for all the server control's child controls.

(Inherited from Control)
ClearChildViewState()

删除服务器控件的所有子控件的视图状态信息。Deletes the view-state information for all the server control's child controls.

(Inherited from Control)
ClearEffectiveClientIDMode()

将当前控件实例和任何子控件的 ClientIDMode 属性设置为 InheritSets the ClientIDMode property of the current control instance and of any child controls to Inherit.

(Inherited from Control)
CreateChildControls()

调用以创建 UpdateProgress 控件包含的任何子控件,以准备回发或呈现。Called to create any child controls that the UpdateProgress control contains in preparation for posting back or rendering.

CreateControlCollection()

创建一个新 ControlCollection 对象来保存服务器控件的子控件(包括文本控件和服务器控件)。Creates a new ControlCollection object to hold the child controls (both literal and server) of the server control.

(Inherited from Control)
DataBind()

将数据源绑定到 UpdateProgress 控件及其所有子控件。Binds a data source to the UpdateProgress control and all its child controls.

DataBind(Boolean)

将数据源绑定到调用的服务器控件及其所有子控件,同时可以选择引发 DataBinding 事件。Binds a data source to the invoked server control and all its child controls with an option to raise the DataBinding event.

(Inherited from Control)
DataBindChildren()

将数据源绑定到服务器控件的子控件。Binds a data source to the server control's child controls.

(Inherited from Control)
Dispose()

使服务器控件得以在从内存中释放之前执行最后的清理操作。Enables a server control to perform final clean up before it is released from memory.

(Inherited from Control)
EndRenderTracing(TextWriter, Object)

结束输出数据的设计时追踪。Ends design-time tracing of rendering data.

(Inherited from Control)
EnsureChildControls()

确定服务器控件是否包含子控件。Determines whether the server control contains child controls. 如果不包含,则创建子控件。If it does not, it creates child controls.

(Inherited from Control)
EnsureID()

为尚未分配标识符的控件创建标识符。Creates an identifier for controls that do not have an identifier assigned.

(Inherited from Control)
Equals(Object)

确定指定的对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(Inherited from Object)
FindControl(String)

在当前的命名容器中搜索带指定 id 参数的服务器控件。Searches the current naming container for a server control with the specified id parameter.

(Inherited from Control)
FindControl(String, Int32)

使用指定的 idpathOffset 参数(该参数有助于搜索)中指定的整数在当前命名容器中搜索服务器控件。Searches the current naming container for a server control with the specified id and an integer, specified in the pathOffset parameter, which aids in the search. 不应重写此版本的 FindControl 方法。You should not override this version of the FindControl method.

(Inherited from Control)
Focus()

为控件设置输入焦点。Sets input focus to a control.

(Inherited from Control)
GetDesignModeState()

获取控件的设计时数据。Gets design-time data for a control.

(Inherited from Control)
GetHashCode()

作为默认哈希函数。Serves as the default hash function.

(Inherited from Object)
GetRouteUrl(Object)

获取与一组路由参数对应的 URL。Gets the URL that corresponds to a set of route parameters.

(Inherited from Control)
GetRouteUrl(RouteValueDictionary)

获取与一组路由参数对应的 URL。Gets the URL that corresponds to a set of route parameters.

(Inherited from Control)
GetRouteUrl(String, Object)

获取与一组路由参数以及某个路由名称对应的 URL。Gets the URL that corresponds to a set of route parameters and a route name.

(Inherited from Control)
GetRouteUrl(String, RouteValueDictionary)

获取与一组路由参数以及某个路由名称对应的 URL。Gets the URL that corresponds to a set of route parameters and a route name.

(Inherited from Control)
GetScriptDescriptors()

返回 UpdateProgress 控件的客户端功能所需的组件、行为及客户端控件的列表。Returns a list of components, behaviors, and client controls that are required for the UpdateProgress control's client functionality.

GetScriptReferences()

返回 UpdateProgress 控件的客户端脚本库依赖项的列表。Returns a list of client script library dependencies for the UpdateProgress control.

GetType()

获取当前实例的 TypeGets the Type of the current instance.

(Inherited from Object)
GetUniqueIDRelativeTo(Control)

返回指定控件的 UniqueID 属性的前缀部分。Returns the prefixed portion of the UniqueID property of the specified control.

(Inherited from Control)
HasControls()

确定服务器控件是否包含任何子控件。Determines if the server control contains any child controls.

(Inherited from Control)
HasEvents()

返回一个值,该值指示是否为控件或任何子控件注册事件。Returns a value indicating whether events are registered for the control or any child controls.

(Inherited from Control)
IsLiteralContent()

确定服务器控件是否只包含文字内容。Determines if the server control holds only literal content.

(Inherited from Control)
LoadControlState(Object)

SaveControlState() 方法保存的上一个页请求还原控件状态信息。Restores control-state information from a previous page request that was saved by the SaveControlState() method.

(Inherited from Control)
LoadViewState(Object)

从用 SaveViewState() 方法保存的上一个页面请求还原视图状态信息。Restores view-state information from a previous page request that was saved by the SaveViewState() method.

(Inherited from Control)
MapPathSecure(String)

检索虚拟路径(绝对的或相对的)映射到的物理路径。Retrieves the physical path that a virtual path, either absolute or relative, maps to.

(Inherited from Control)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(Inherited from Object)
OnBubbleEvent(Object, EventArgs)

确定服务器控件的事件是否沿页的 UI 服务器控件层次结构向上传递。Determines whether the event for the server control is passed up the page's UI server control hierarchy.

(Inherited from Control)
OnDataBinding(EventArgs)

引发 DataBinding 事件。Raises the DataBinding event.

(Inherited from Control)
OnInit(EventArgs)

引发 Init 事件。Raises the Init event.

(Inherited from Control)
OnLoad(EventArgs)

引发 Load 事件。Raises the Load event.

(Inherited from Control)
OnPreRender(EventArgs)

引发 PreRender 事件。Raises the PreRender event.

OnUnload(EventArgs)

引发 Unload 事件。Raises the Unload event.

(Inherited from Control)
OpenFile(String)

获取用于读取文件的 StreamGets a Stream used to read a file.

(Inherited from Control)
RaiseBubbleEvent(Object, EventArgs)

将所有事件源及其信息分配给控件的父级。Assigns any sources of the event and its information to the control's parent.

(Inherited from Control)
RemovedControl(Control)

Control 对象的 Controls 集合移除子控件后调用。Called after a child control is removed from the Controls collection of the Control object.

(Inherited from Control)
Render(HtmlTextWriter)

通过使用提供的 UpdateProgress 对象,将 HtmlTextWriter 控件的呈现内容写入浏览器。Writes the rendered content of the UpdateProgress control to the browser by using the supplied HtmlTextWriter object.

RenderChildren(HtmlTextWriter)

将服务器控件子级的内容输出到提供的 HtmlTextWriter 对象,该对象可写入要在客户端上呈现的内容。Outputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client.

(Inherited from Control)
RenderControl(HtmlTextWriter)

将服务器控件内容输出到所提供的 HtmlTextWriter 对象,如果启用了跟踪,则还将存储有关该控件的跟踪信息。Outputs server control content to a provided HtmlTextWriter object and stores tracing information about the control if tracing is enabled.

(Inherited from Control)
RenderControl(HtmlTextWriter, ControlAdapter)

使用提供的 HtmlTextWriter 对象将服务器控件内容输出到提供的 ControlAdapter 对象。Outputs server control content to a provided HtmlTextWriter object using a provided ControlAdapter object.

(Inherited from Control)
ResolveAdapter()

获取负责呈现指定控件的控件适配器。Gets the control adapter responsible for rendering the specified control.

(Inherited from Control)
ResolveClientUrl(String)

获取浏览器可以使用的 URL。Gets a URL that can be used by the browser.

(Inherited from Control)
ResolveUrl(String)

将 URL 转换为在请求客户端可用的 URL。Converts a URL into one that is usable on the requesting client.

(Inherited from Control)
SaveControlState()

保存将页面回发到服务器之后发生的所有服务器控件状态更改。Saves any server control state changes that have occurred since the time the page was posted back to the server.

(Inherited from Control)
SaveViewState()

保存将页面回发到服务器之后发生的所有服务器控件视图状态更改。Saves any server control view-state changes that have occurred since the time the page was posted back to the server.

(Inherited from Control)
SetDesignModeState(IDictionary)

为控件设置设计时数据。Sets design-time data for a control.

(Inherited from Control)
SetRenderMethodDelegate(RenderMethod)

分配事件处理程序委托,以将服务器控件及其内容呈现到父控件中。Assigns an event handler delegate to render the server control and its content into its parent control.

(Inherited from Control)
SetTraceData(Object, Object)

使用跟踪数据键和跟踪数据值,为呈现数据的设计时追踪设置跟踪数据。Sets trace data for design-time tracing of rendering data, using the trace data key and the trace data value.

(Inherited from Control)
SetTraceData(Object, Object, Object)

使用跟踪对象、跟踪数据键和跟踪数据值,为呈现数据的设计时追踪设置跟踪数据。Sets trace data for design-time tracing of rendering data, using the traced object, the trace data key, and the trace data value.

(Inherited from Control)
ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(Inherited from Object)
TrackViewState()

导致跟踪服务器控件的视图状态的更改,以便这些更改可以存储到服务器控件的 StateBag 对象中。Causes tracking of view-state changes to the server control so they can be stored in the server control's StateBag object. 通过 ViewState 属性可访问此对象。This object is accessible through the ViewState property.

(Inherited from Control)

Events

DataBinding

当服务器控件绑定到数据源时发生。Occurs when the server control binds to a data source.

(Inherited from Control)
Disposed

当从内存释放服务器控件时发生,这是请求 ASP.NET 页时服务器控件生存期的最后阶段。Occurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested.

(Inherited from Control)
Init

当服务器控件初始化时发生;初始化是控件生存期的第一步。Occurs when the server control is initialized, which is the first step in its lifecycle.

(Inherited from Control)
Load

当服务器控件加载到 Page 对象中时发生。Occurs when the server control is loaded into the Page object.

(Inherited from Control)
PreRender

在加载 Control 对象之后、呈现之前发生。Occurs after the Control object is loaded but prior to rendering.

(Inherited from Control)
Unload

当服务器控件从内存中卸载时发生。Occurs when the server control is unloaded from memory.

(Inherited from Control)

Explicit Interface Implementations

IAttributeAccessor.GetAttribute(String)

通过使用指定名称返回 Web 控件的特性。Returns an attribute of a Web control by using the specified name.

IAttributeAccessor.SetAttribute(String, String)

设置指定的用户控件特性的值。Sets the value of the specified user-control attribute.

IControlBuilderAccessor.ControlBuilder

有关此成员的说明,请参见 ControlBuilderFor a description of this member, see ControlBuilder.

(Inherited from Control)
IControlDesignerAccessor.GetDesignModeState()

有关此成员的说明,请参见 GetDesignModeState()For a description of this member, see GetDesignModeState().

(Inherited from Control)
IControlDesignerAccessor.SetDesignModeState(IDictionary)

有关此成员的说明,请参见 SetDesignModeState(IDictionary)For a description of this member, see SetDesignModeState(IDictionary).

(Inherited from Control)
IControlDesignerAccessor.SetOwnerControl(Control)

有关此成员的说明,请参见 SetOwnerControl(Control)For a description of this member, see SetOwnerControl(Control).

(Inherited from Control)
IControlDesignerAccessor.UserData

有关此成员的说明,请参见 UserDataFor a description of this member, see UserData.

(Inherited from Control)
IDataBindingsAccessor.DataBindings

有关此成员的说明,请参见 DataBindingsFor a description of this member, see DataBindings.

(Inherited from Control)
IDataBindingsAccessor.HasDataBindings

有关此成员的说明,请参见 HasDataBindingsFor a description of this member, see HasDataBindings.

(Inherited from Control)
IExpressionsAccessor.Expressions

有关此成员的说明,请参见 ExpressionsFor a description of this member, see Expressions.

(Inherited from Control)
IExpressionsAccessor.HasExpressions

有关此成员的说明,请参见 HasExpressionsFor a description of this member, see HasExpressions.

(Inherited from Control)
IParserAccessor.AddParsedSubObject(Object)

有关此成员的说明,请参见 AddParsedSubObject(Object)For a description of this member, see AddParsedSubObject(Object).

(Inherited from Control)
IScriptControl.GetScriptDescriptors()

有关此成员的说明,请参见 GetScriptDescriptors()For a description of this member, see GetScriptDescriptors().

IScriptControl.GetScriptReferences()

有关此成员的说明,请参见 GetScriptReferences()For a description of this member, see GetScriptReferences().

Extension Methods

FindDataSourceControl(Control)

返回与指定控件的数据控件关联的数据源。Returns the data source that is associated with the data control for the specified control.

FindFieldTemplate(Control, String)

返回指定控件的命名容器中指定列的字段模板。Returns the field template for the specified column in the specified control's naming container.

FindMetaTable(Control)

返回包含数据控件的元表对象。Returns the metatable object for the containing data control.

Applies to

See also