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How to do Enable-SPFeature equievalent in object model. I want to enable some features (lists) in my publishing site in event receiver. For example:

Enable-SPFeature announcementslist -url URL_OF_SITE

How can i activate announcementslist by code in event receiver?

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You can use SPWeb or SPSite to activate features on subsite or a certain site collection respectively. Here is an example of SPWeb.

        try
        {
           SPWeb oWebSite = SPContext.Current.Web;
           feature = oWebSite.Features[new GUID("94C94CA6-B32F-4da9-A9E3-1F3D343D7ECB")];
           if (feature == null)//if feature is not activated  
           //Activating a feature using Object Model    
           oWebSite.Features.Add(new GUID("94C94CA6-B32F-4da9-A9E3-1F3D343D7ECB");
         }
         catch (Exception ex)
         {

         }
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  • oWeb.Features.Add is equal to Enable-SPFeature ? And what to do for activating the feature in site collection scope. – ozdogan Nov 9 '12 at 9:11
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    use SPSite.Features.Add to add/activate a Site Collection scope feature, call the Add method and pass it the GUID of the feature. Be warned that it will throw an InvalidOperationException if the feature is already activated. – Falak Mahmood Nov 9 '12 at 9:16
  • Very thanks Falak.. What is the best practice to handle exception. Or can we firstly look if the feature is already activated, before running the code? – ozdogan Nov 9 '12 at 9:20
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    I have updated the code with general exception handling. – Falak Mahmood Nov 9 '12 at 9:31

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