Gets a value indicating whether a previous page in navigation history is available, which allows the GoBack method to succeed.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The WebBrowser control maintains a history list of all the Web pages visited during a browsing session. The GoBack method navigates the WebBrowser control to the previous page in this history, if one is available. Use the property to determine whether navigation history is available and contains a previous page. If this property is true, the GoBack method will succeed. Otherwise, calling the GoBack method will return a value of false and no navigation will occur.
You can also handle the CanGoBackChanged event to receive a notification when the property changes. Handling this event is useful, for example, to change the enabled state of a Back button when the WebBrowser control navigates to or leaves the beginning of the navigation history.
The following code example demonstrates how to use the property to implement a Back button for the WebBrowser control that is similar to the Back button in Internet Explorer. This example requires that your form contains a WebBrowser control called webBrowser1 and a Button control called backButton.
For the complete code example, see How to: Add Web Browser Capabilities to a Windows Forms Application.
' Navigates webBrowser1 to the previous page in the history. Private Sub backButton_Click( _ ByVal sender As Object, ByVal e As EventArgs) _ Handles backButton.Click webBrowser1.GoBack() End Sub ' Disables the Back button at the beginning of the navigation history. Private Sub webBrowser1_CanGoBackChanged( _ ByVal sender As Object, ByVal e As EventArgs) _ Handles webBrowser1.CanGoBackChanged backButton.Enabled = webBrowser1.CanGoBack End Sub
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.