private void CloseWebView()
{
if (_webView2Control != null)
{
_webView2Control.Close();
_webView2Control.EnvironmentCreated -= webView2Control1_EnvironmentCreated;
_webView2Control.BrowserCreated -= _webView2Control_BrowserCreated;
_webView2Control.ContainsFullScreenElementChanged -= _webView2Control_ContainsFullScreenElementChanged;
_webView2Control.NewWindowRequested -= _webView2Control_NewWindowRequested;
_environment.UnregisterNewVersionAvailable(_newVersionToken);
_settingsComponent.CleanUp();
_settingsComponent = null;
_fileComponent.CleanUp();
_fileComponent = null;
_processComponent.CleanUp();
_processComponent = null;
_scriptComponent.CleanUp();
_scriptComponent = null;
_controlComponent.CleanUp();
_controlComponent = null;
_viewComponent.CleanUp();
_viewComponent = null;
tableLayoutPanel1.Controls.Remove(_webView2Control);
_webView2Control.Dispose();
_webView2Control = null;
}
}
protected override void OnClosed(EventArgs e)
{
if (_childWebView != null)
{
_childWebView.BrowserCreated -= _childWebView_BrowserCreated;
_childWebView.DocumentTitleChanged -= _childWebView_DocumentTitleChanged;
_childWebView.Dispose();
}
_environment = null;
_args = null;
base.OnClosed(e);
}
private void CloseWebView(bool cleanupUserDataFolder)
{
if (_webView2Control != null)
{
_webView2Control.Close();
_webView2Control.EnvironmentCreated -= webView2Control1_EnvironmentCreated;
_webView2Control.BrowserCreated -= _webView2Control_BrowserCreated;
_webView2Control.ContainsFullScreenElementChanged -= _webView2Control_ContainsFullScreenElementChanged;
_webView2Control.NewWindowRequested -= _webView2Control_NewWindowRequested;
_environment.UnregisterNewVersionAvailable(_newVersionToken);
_settingsComponent.CleanUp();
_settingsComponent = null;
_fileComponent.CleanUp();
_fileComponent = null;
_processComponent.CleanUp();
_processComponent = null;
_scriptComponent.CleanUp();
_scriptComponent = null;
_controlComponent.CleanUp();
_controlComponent = null;
_viewComponent.CleanUp();
_viewComponent = null;
tableLayoutPanel1.Controls.Remove(_webView2Control);
_webView2Control.Dispose();
_webView2Control = null;
}
if (cleanupUserDataFolder)
{
// For non-UWP apps, the default user data folder {Executable File Name}.WebView2
// is in the same directory next to the app executable. If end
// developers specify userDataFolder during WebView environment
// creation, they would need to pass in that explicit value here.
// For more information about userDataFolder:
// https://docs.microsoft.com/microsoft-edge/hosting/webview2/reference/webview2.idl#createwebview2environmentwithdetails
string userDataFolder = Environment.CurrentDirectory;
// Obtain the absolute path for relative paths that include "./" or "../"
userDataFolder = Path.Combine(userDataFolder, "MtrDev.WebView2.WinForms.Sample.exe.WebView2");
string userDataFolderPath = userDataFolder;
string message = "Are you sure you want to clean up the user data folder at\n";
message += userDataFolderPath;
message += "\n?\nWarning: This action is not reversible.\n\n";
message += "Click No if there are other open WebView instnaces.\n";
if (MessageBox.Show(this, message, "Cleanup User Data Folder", MessageBoxButtons.YesNo) ==
DialogResult.Yes)
{
try
{
Directory.Delete(userDataFolderPath, true);
}
catch (Exception)
{
}
}
}
}
