Table of Contents

• Example 1. How to set permissions to SPListItem.
• Example 2. How to restore permissions to SPListItem
• Example 3. How to create new permissions leragment-inner">
  SharePoint 2010: How to Manage Permissions

  Table of Contents

  
   
  This article will show you how to manage user permissions inside of SharePoint 2010. This enables you to change the read and write permissions for individuals and groups of users across your organization.
   

  Example 1. How to set permissions to SPListItem.
  
  

  public void SetSPListItemUserPermissions(SPListItem listItem, SPUser user, SPRoleType roleType)

  {

      //Break role inheritance

      if (!listItem.HasUniqueRoleAssignments)

          listItem.BreakRoleInheritance(false);

      listItem.Update();

   

      //Create new role

      var roleDefinition = listItem.Web.RoleDefinitions.GetByType(roleType);

      var roleAssignment = new SPRoleAssignment(user);

      roleAssignment.RoleDefinitionBindings.Add(roleDefinition);

            

      //Assign new role

      listItem.RoleAssignments.Add(roleAssignment);

      listItem.Update();

  }

  
  

  Example 2. How to restore permissions to SPListItem
  
  

  public void RestoreSPListItemUserPermissions(SPListItem listItem)

  {

      if (listItem.HasUniqueRoleAssignments)

          listItem.ResetRoleInheritance();

   

      listItem.Update();

  }

  
  

  Example 3. How to create new permissions level
  
  

  public void CreateNewPermissionsLevel(SPWeb web, string title, string description, SPBasePermissions basePermissions, bool copyRoleAssignments, bool keepRoleAssignments)

  {

      if (!web.HasUniqueRoleDefinitions)

          web.RoleDefinitions.BreakInheritance(copyRoleAssignments, keepRoleAssignments);

      web.Update();

   

      var roleDefinition =

  {

  new SPRoleDefinition

                                  {

                                      Name = title,

                                      Description = description,

                                      BasePermissions = basePermissions

                                  };

      web.RoleDefinitions.Add(roleDefinition);

  }