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Set Custom master page in sharepoint using Event receiver

Steps

OPen your visual studio and add a Event receiver class under the features tab.

And Replace the below code in Visual studio.

Create a sharepoint project. Add a Module to it. I named it as "MasterModule". By default the module will be created with 2 files, Elemnts.xml and Sample.txt.

You can add / create a Custom Masterpage file as per your requirment. For my purpose, i am trying to reuse the existing V4.Master.

Elements XML replace the below code:

  1. <?xml version="1.0" encoding="utf-8"?>  
  2. <Elements xmlns="http://schemas.microsoft.com/sharepoint/">  
  3.   <Module Name="CustomMasterPage" List="116" Url="_catalogs/masterpage">  
  4.     <File Path="CustomMasterPage\Custom.master" Url="Custom.master" Type="GhostableInLibrary" IgnoreIfAlreadyExists="FALSE" />  
  5.   </Module>  
  6. </Elements> 
Event receiver .cs add below code in Feature activated method.
  1. public override void FeatureActivated(SPFeatureReceiverProperties properties)  
  2.   
  3. {  
  4.   
  5.     var parentSite =  properties.Feature.Parent as SPSite;  
  6.   
  7.     if (parentSite != null)  
  8.   
  9.     {  
  10.   
  11.         SPSecurity.RunWithElevatedPrivileges(delegate  
  12.   
  13.         {  
  14.   
  15.             using (var site = new SPSite(parentSite.RootWeb.Url))  
  16.   
  17.             {  
  18.   
  19.                 using (var web = site.OpenWeb())  
  20.   
  21.                 {  
  22.   
  23.                     web.AllowUnsafeUpdates = true;  
  24.   
  25.                       
  26. string masterPage="CustomMasterPage.master";  
  27.     var masterUri = new Uri(web.Url + "/_catalogs/masterpage/" + masterPage);  
  28.   
  29.    
  30.   
  31.     web.MasterUrl = masterUri.AbsolutePath;  
  32.   
  33.     web.CustomMasterUrl = masterUri.AbsolutePath;  
  34.   
  35.     web.Update();  
  36.   
  37.                 }  
  38.   
  39.             }  
  40.   
  41.         }); 
Feature Deactivate method:
  1. public override void FeatureDeactivating(SPFeatureReceiverProperties properties)  
  2.   
  3. {  
  4.   
  5.     var parentSite = properties.Feature.Parent as SPSite;  
  6.   
  7.     if (parentSite != null)  
  8.   
  9.     {  
  10.   
  11.         SPSecurity.RunWithElevatedPrivileges(delegate  
  12.   
  13.         {  
  14.   
  15.             using (var site = new SPSite(parentSite.RootWeb.Url))  
  16.   
  17.             {  
  18.   
  19.                 using (var web = site.OpenWeb())  
  20.   
  21.                 {  
  22.   
  23.                     web.AllowUnsafeUpdates = true;  
  24.   
  25.                       
  26. string masterPage="V4.master";  
  27.     var masterUri = new Uri(web.Url + "/_catalogs/masterpage/" + masterPage);  
  28.   
  29.    
  30.   
  31.     web.MasterUrl = masterUri.AbsolutePath;  
  32.   
  33.     web.CustomMasterUrl = masterUri.AbsolutePath;  
  34.   
  35.     web.Update();  
  36.   
  37.                 }  
  38.   
  39.             }  
  40.   
  41.         });  
  42.   
  43.     }