SharePoint 2010 Role Assignment & Anonymous

Role Assignment & Anonymous method using code

1. Anonymous Access  
2. Role Assignment in item level

1. Anonymous Access  

private void RestrictedFormPagesCode_Click(object sender, EventArgs e)

        {

SPSite site = new SPSite("http://home");

             SPWeb _web = site.RootWeb;

             _web.AnonymousPermMask64 = _web.AnonymousPermMask64 ^ SPBasePermissions.ViewFormPages;

             _web.Update();

}

 2. Role Assignment in item level

private void RoleAssignment_Click(object sender, EventArgs e)

        {

SPSite site = new SPSite("http://home");

             SPWeb _web = site.RootWeb;

              SPListItem taskitem = CreateAssignTask(_web);

             CreateTaskassign(_web);

             setpermission(taskitem);

}

Helper function for creating a assign task.

       static SPListItem CreateAssignTask(SPWeb _web)

        {

            SPList _list = _web.Lists["task"];

            SPListItem taskitem = _list.Items.Add();

            taskitem["Title"] = "this task assign to basant";

            SPUser _user = _web.EnsureUser(@"home\\basant.pandey"); // If not exist then create the user using  this method

            SPFieldUserValue basant = new SPFieldUserValue(_web, _user.ID, _user.LoginName);

// SPFieldUserValue used for set complex data type values. There are many more classes are used like SPFieldUrlValue. Because in SharePoint every think store as a string. Working on the complex values we have to must use this classes to make our work easy.

            taskitem["Assigned To"] = _user;

            taskitem.Update();

            return taskitem;

        }

        static void CreateTaskassign(SPWeb _web)

        {

            SPRoleDefinition _def = new SPRoleDefinition();

            _def.Name = "task asign users";

            _def.Description = "can't delete this items";

              //bit wise or to create the base permission.

            _def.BasePermissions = SPBasePermissions.ViewListItems |

                SPBasePermissions.EditListItems |

                SPBasePermissions.Open | SPBasePermissions.ViewPages;

// add the permission to the web.

            _web.RoleDefinitions.Add(_def);  

        }

        static void setpermission(SPListItem _item)

        {

              // set the role permission to item level.

            SPWeb _web = _item.Web;

             

              // we have to break the inheritance to give the unique permission to the items or any other list.

           

            _item.BreakRoleInheritance(false);

              // reverse back the item using following constructor of the SPFieldUserValue

            SPFieldUserValue taskwebOwener = new SPFieldUserValue(_web, (string)_item["Assigned To"]);

             

             

            SPRoleAssignment assign = new SPRoleAssignment(taskwebOwener.User); // can be user or can be group

            assign.RoleDefinitionBindings.Add(_web.RoleDefinitions["task asign users"]);

            _item.RoleAssignments.Add(assign);

        }