/// <summary>
/// Creates a hidden Iframe element.
/// </summary>
/// <returns>The IFrameElement created. </returns>
internal static IFrame CreateHiddenIframeElement()
{
IFrame _elmFrame = new IFrame();
_elmFrame.Style.Position = "absolute";
_elmFrame.Style.Visibility = "hidden";
return _elmFrame;
}
/// <summary>
/// Sets the size and location of a background iframe to cover the area behind the flyout.
/// </summary>
/// <remarks>
/// The background iframe is positioned under a flyout when the flyout is launched in InternetExplorer. Without
/// this, the flyout appears under ActiveX controls on the page.
/// </remarks>
/// <param name="elmFlyout">The flyout to be launched.</param>
/// <param name="elmBackFrame">The iframe positioned under the flyout.</param>
internal static void PositionBackFrame(IFrame elmBackFrame, HtmlElement elmFlyout)
{
elmBackFrame.Style.Position = "absolute";
elmBackFrame.Style.Visibility = "hidden";
elmBackFrame.Style.Left = elmFlyout.Style.Left;
elmBackFrame.Style.Top = elmFlyout.Style.Top;
int realWidth = elmFlyout.OffsetWidth;
int realHeight = elmFlyout.OffsetHeight;
elmBackFrame.Style.Width = realWidth.ToString() + "px";
elmBackFrame.Style.Height = realHeight.ToString() + "px";
elmBackFrame.Style.Visibility = "visible";
}
public override void Dispose()
{
base.Dispose();
if (!CUIUtility.IsNullOrUndefined(_menu))
_menu.Dispose();
if (!CUIUtility.IsNullOrUndefined(_cachedMenuVersions))
{
// This may have gotten called before if this is the current menu that we are
// holding but it won't hurt to call it twice.
foreach (string key in _cachedMenuVersions.Keys)
_cachedMenuVersions[key].Dispose();
_cachedMenuVersions.Clear();
_cachedMenuVersions = null;
}
_selectedControl = null;
_menu = null;
_elmBackFrame = null;
}
