public override void ResetValue(object component)
{
object invokee = GetInvocationTarget(_componentClass, component);
if (DefaultValue != s_noValue)
{
SetValue(component, DefaultValue);
}
else if (AmbientValue != s_noValue)
{
SetValue(component, AmbientValue);
}
else if (ResetMethodValue != null)
{
ISite site = GetSite(component);
IComponentChangeService changeService = null;
object oldValue = null;
object newValue;
// Announce that we are about to change this component
//
if (site != null)
{
changeService = (IComponentChangeService)site.GetService(typeof(IComponentChangeService));
Debug.Assert(!CompModSwitches.CommonDesignerServices.Enabled || changeService != null, "IComponentChangeService not found");
}
// Make sure that it is ok to send the onchange events
//
if (changeService != null)
{
// invokee might be a type from mscorlib or system, GetMethodValue might return a NonPublic method
oldValue = SecurityUtils.MethodInfoInvoke(GetMethodValue, invokee, (object[])null);
try
{
changeService.OnComponentChanging(component, this);
}
catch (CheckoutException coEx)
{
if (coEx == CheckoutException.Canceled)
{
return;
}
throw coEx;
}
}
if (ResetMethodValue != null)
{
SecurityUtils.MethodInfoInvoke(ResetMethodValue, invokee, (object[])null);
// Now notify the change service that the change was successful.
//
if (changeService != null)
{
newValue = SecurityUtils.MethodInfoInvoke(GetMethodValue, invokee, (object[])null);
changeService.OnComponentChanged(component, this, oldValue, newValue);
}
}
}
}
