WebBrowserProgressChangedEventArgs WebBrowserProgressChangedEventArgs WebBrowserProgressChangedEventArgs WebBrowserProgressChangedEventArgs Class


ProgressChanged 事件提供数据。Provides data for the ProgressChanged event.

public ref class WebBrowserProgressChangedEventArgs : EventArgs
public class WebBrowserProgressChangedEventArgs : EventArgs
type WebBrowserProgressChangedEventArgs = class
    inherit EventArgs
Public Class WebBrowserProgressChangedEventArgs
Inherits EventArgs


下面的代码示例演示如何使用此类型。The following code example demonstrates the use of this type. 在示例中,事件处理程序报告的匹配项ProgressChanged事件。In the example, an event handler reports on the occurrence of the ProgressChanged event. 此报告可帮助您了解事件发生的并可以帮助您进行调试。This report helps you to learn when the event occurs and can assist you in debugging. 若要报告或频繁发生的事件上多个事件,请考虑更换ShowConsole.WriteLine或将消息附加到多行TextBoxTo report on multiple events or on events that occur frequently, consider replacing Show with Console.WriteLine or appending the message to a multiline TextBox.

若要运行此代码示例,请将其粘贴到包含类型的实例的项目WebBrowser名为WebBrowser1To run the example code, paste it into a project that contains an instance of type WebBrowser named WebBrowser1. 然后,确保事件处理程序相关联ProgressChanged事件。Then ensure that the event handler is associated with the ProgressChanged event.

private void WebBrowser1_ProgressChanged(Object sender, WebBrowserProgressChangedEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "CurrentProgress", e.CurrentProgress );
messageBoxCS.AppendFormat("{0} = {1}", "MaximumProgress", e.MaximumProgress );
MessageBox.Show(messageBoxCS.ToString(), "ProgressChanged Event" );
Private Sub WebBrowser1_ProgressChanged(sender as Object, e as WebBrowserProgressChangedEventArgs) _ 
     Handles WebBrowser1.ProgressChanged

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "CurrentProgress", e.CurrentProgress)
    messageBoxVB.AppendFormat("{0} = {1}", "MaximumProgress", e.MaximumProgress)
    MessageBox.Show(messageBoxVB.ToString(),"ProgressChanged Event")

End Sub


您可以处理WebBrowser.ProgressChanged事件来实现的导航进度条WebBrowser控件类似于 Internet Explorer 中的一个。You can handle the WebBrowser.ProgressChanged event to implement a navigation progress bar for the WebBrowser control similar to the one in Internet Explorer. 使用CurrentProgress属性来确定已成功下载的字节数。Use the CurrentProgress property to determine the number of bytes that have been downloaded successfully. 使用MaximumProgress属性来确定可供下载的字节数。Use the MaximumProgress property to determine the number of bytes available for downloading.


WebBrowserProgressChangedEventArgs(Int64, Int64) WebBrowserProgressChangedEventArgs(Int64, Int64) WebBrowserProgressChangedEventArgs(Int64, Int64) WebBrowserProgressChangedEventArgs(Int64, Int64)

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


CurrentProgress CurrentProgress CurrentProgress CurrentProgress

获取已下载的字节数。Gets the number of bytes that have been downloaded.

MaximumProgress MaximumProgress MaximumProgress MaximumProgress

获取正在加载的文档中的总字节数。Gets the total number of bytes in the document being loaded.


Equals(Object) Equals(Object) Equals(Object) 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)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

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

(Inherited from Object)
GetType() GetType() GetType() GetType()

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

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

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

(Inherited from Object)
ToString() ToString() ToString() ToString()

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

(Inherited from Object)