protected void Strict_(IGetRegions regionProvider)
 {
     strictRegions_.Add(regionProvider);
 }
 protected void Content_(IGetRegions regionProvider)
 {
     contentRegions_.Add(regionProvider);
 }
 protected void Layout_(IGetRegions regionProvider)
 {
     layoutRegions_.Add(regionProvider);
 }
 protected void Ignore_(IGetRegions regionProvider)
 {
     ignoreRegions_.Add(regionProvider);
 }