public static void UpgradeFeatures(ref SPWebApplication webApp, Guid featureId)
{
SPFeatureQueryResultCollection features = null;
try
{
features = webApp.QueryFeatures(featureId, true);
}
catch {// not contained
}
if (features != null)
{
IEnumerator <SPFeature> featureEnumerator = features.GetEnumerator();
featureEnumerator.Reset();
while (featureEnumerator.MoveNext())
{
try
{
SPFeature feature = featureEnumerator.Current;
feature.Upgrade(false);
}
catch (Microsoft.SharePoint.SPFeatureIsOrphanedException oEx) { }
}
}
}