protected virtual async Task CloseChildWindowAsync(IWin32Window windowHandle)
{
await Task.Run(() =>
{
IMdiChildForm mdiChildToClose = null;
foreach (IMdiChildForm mdiChild in MdiChildren)
{
if (mdiChild.WindowHandle == windowHandle)
{
mdiChildToClose = mdiChild;
break;
}
}
if (mdiChildToClose != null)
{
MdiChildren.Remove(mdiChildToClose);
mdiChildToClose.CloseWindow();
mdiChildToClose.Dispose();
}
});
}
protected virtual void CloseAllDisplays()
{
foreach (IMdiChildForm childForm in MdiChildren.ToList())
{
((Form)childForm).Close();
MdiChildren.Remove(childForm);
((Form)Parent).Controls.Remove((Form)childForm);
childForm.Dispose();
}
}
// mdi child event handlers (child window->controller)
private void MdiChild_FormClosing(object sender, FormClosingEventArgs e)
{
MdiChildren.Remove((IMdiChildForm)sender);
}