/// <summary>
/// FeaturedefinitionScope.None is the way to go OOTB features. http://stackoverflow.com/questions/17803291/failing-to-activate-a-feature-using-com-in-sharepoint-2010
/// Both Site Collection and Web scoped custom features MUST use Scope.Site.
/// </summary>
/// <param name="clientContext"></param>
/// <param name="featureInfo"></param>
/// <param name="featureCollection"></param>
/// <param name="scope"></param>
private static void ActivateFeatureInCollection(ClientContext clientContext, ShFeature featureInfo, FeatureCollection featureCollection, FeatureDefinitionScope scope)
{
clientContext.Load(featureCollection);
clientContext.ExecuteQuery();
if (!DoesFeatureExistInCollection(featureCollection, featureInfo.FeatureId))
{
try
{
Log.Info("Activating feature " + featureInfo.FeatureName);
featureCollection.Add(featureInfo.FeatureId, true, scope);
clientContext.ExecuteQuery();
}
catch (ServerException)
{
// Out of the box features will bomb using other scopes than FeatureDefinitionScope.None
// This is why we first try with the correct scope, then fallback to Scope.None
featureCollection.Add(featureInfo.FeatureId, true, FeatureDefinitionScope.None);
clientContext.ExecuteQuery();
}
}
}
private static void DeActivateFeatureInCollection(ClientContext clientContext, ShFeature featureInfo, FeatureCollection featureCollection)
{
clientContext.Load(featureCollection);
clientContext.ExecuteQuery();
if (DoesFeatureExistInCollection(featureCollection, featureInfo.FeatureId))
{
Log.Info("Deactivating feature " + featureInfo.FeatureName);
featureCollection.Remove(featureInfo.FeatureId, true);
clientContext.ExecuteQuery();
}
}
private void ActivateWebFeature(ClientContext clientContext, ShFeature feature, Web web)
{
Log.DebugFormat("Attempting to activate web feature {0}", feature.FeatureName);
var featureCollection = web.Features;
if (feature.ReactivateAlways) DeActivateFeatureInCollection(clientContext, feature, featureCollection);
ActivateFeatureInCollection(clientContext, feature, featureCollection, FeatureDefinitionScope.Site);
}
private void ActivateSiteCollectionFeature(ClientContext clientContext, ShFeature feature)
{
Log.DebugFormat("Attempting to activate site collection feature {0}", feature.FeatureName);
var siteCollection = clientContext.Site;
var featureCollection = siteCollection.Features;
if (feature.ReactivateAlways) DeActivateFeatureInCollection(clientContext, feature, featureCollection);
ActivateFeatureInCollection(clientContext, feature, featureCollection, FeatureDefinitionScope.Site);
}
