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Break Role Inheritance On List in SharePoint using CSOM

The example in this topic show how to use CSOM to Break Role Inheritance On List in SharePoint
  • Please follow the steps below to execute the code in Visual Studio using Console Application. You can customize the solution according to your requirements.
  • Check the article to Connect to SharePoint context using CSOM. This is very helpful if you are doing any programming in CSOM.
  • Don't forget to use the assemblies as mentioned in the code.

How to run CSOM code in SharePoint?

  • Open your Visual Studio.
  • From the template, select Console Application as shown in the screenshot
  • Select the .Net Framework version from the top drop-down as well. You can also change the .Net Framework after creating the solution.
  • Enter Project Name, Location and Solution Name and click on OK.
  • create console application using Visual Studio
  • Now your program.cs file will open. Copy the code in main function.
  • Once you are done with your code, just hit F5 or Run the application.

  • using Microsoft.SharePoint.Client;
  • using System.Linq;
  •  
  • using (ClientContext clientContext = new ClientContext("http://MyServer/sites/MySiteCollection"))
  • {
  • // Code to set list with unique permission and assign a particular group on list with desired permission
  •  
  • // This method may not work for Calculated column
  •  
  • // clientcontext.Web.Lists.GetById - This option also can be used to get the list using List GUID
  • // This value is NOT List internal name
  • List targetList = clientContext.Web.Lists.GetByTitle("List Title");
  •  
  • // This method takes two parameteres.
  • // (1) copyRoleAssignments(Boolean) - Specifies whether to copy the role assignments from the parent or not.
  • // If the value is false, the collection of role assignments must contain only 1 role assignment containing the current user after the operation
  • // (2) clearSubscopes(Boolean) - clearsubscopes parameter is true, the role assignments for all child objects will be cleared and those objects will inherit role assignments from the current object after this call.
  • // If the clearsubscopes parameter is false, the role assignments for all child objects which do not inherit role assignments from their parent must remain unchanged.
  • targetList.BreakRoleInheritance(true, true);
  •  
  • targetList.Update();
  • clientContext.ExecuteQuery();
  • }

Thank you for reading this article. This code was tested in SharePoint 2013

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