private bool EditMenuItemsChangeCallback(object context)
{
bool changed = false;
PopupMenu oControl = (PopupMenu)Component;
IServiceProvider site = oControl.Site;
IComponentChangeService changeService = null;
try
{
MenuItemsEditorForm oEditorForm = new MenuItemsEditorForm(oControl);
if (oEditorForm.ShowDialog() == DialogResult.OK)
{
changed = true;
}
}
finally
{
if (changed && changeService != null)
{
changeService.OnComponentChanged(oControl, null, null, null);
}
}
return(changed);
}
public override bool EditComponent(ITypeDescriptorContext context, object component, IWin32Window owner)
{
PopupMenu oControl = (PopupMenu)component;
IServiceProvider site = oControl.Site;
IComponentChangeService changeService = null;
DesignerTransaction transaction = null;
bool changed = false;
try
{
if (site != null)
{
IDesignerHost designerHost = (IDesignerHost)site.GetService(typeof(IDesignerHost));
transaction = designerHost.CreateTransaction("BuildMenu");
changeService = (IComponentChangeService)site.GetService(typeof(IComponentChangeService));
if (changeService != null)
{
try
{
changeService.OnComponentChanging(component, null);
}
catch (CheckoutException ex)
{
if (ex == CheckoutException.Canceled)
{
return(false);
}
throw ex;
}
}
}
try
{
MenuItemsEditorForm oEditorForm = new MenuItemsEditorForm(oControl);
if (oEditorForm.ShowDialog(owner) == DialogResult.OK)
{
changed = true;
}
}
finally
{
if (changed && changeService != null)
{
changeService.OnComponentChanged(oControl, null, null, null);
}
}
}
finally
{
if (transaction != null)
{
if (changed)
{
transaction.Commit();
}
else
{
transaction.Cancel();
}
}
}
return(changed);
}