WebBrowserProgressChangedEventArgs Class
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WebBrowserProgressChangedEventArgs Class


Provides data for the WebBrowser.ProgressChanged event.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)


public class WebBrowserProgressChangedEventArgs : EventArgs

System_CAPS_pubmethodWebBrowserProgressChangedEventArgs(Int64, Int64)

Initializes a new instance of the WebBrowserProgressChangedEventArgs class.


Gets the number of bytes that have been downloaded.


Gets the total number of bytes in the document being loaded.


Determines whether the specified object is equal to the current object.(Inherited from Object.)


Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)


Serves as the default hash function. (Inherited from Object.)


Gets the Type of the current instance.(Inherited from Object.)


Creates a shallow copy of the current Object.(Inherited from Object.)


Returns a string that represents the current object.(Inherited from Object.)

You can handle the WebBrowser.ProgressChanged event to implement a navigation progress bar for the WebBrowser control similar to the one in Internet Explorer. Use the CurrentProgress property to determine the number of bytes that have been downloaded successfully. Use the MaximumProgress property to determine the number of bytes available for downloading.

The following code example demonstrates the use of this type. In the example, an event handler reports on the occurrence of the ProgressChanged event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing Show with Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of type WebBrowser named WebBrowser1. 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" );

.NET Framework
Available since 2.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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