Question

How do I programmatically add user permissions to a list in Sharepoint? I want to add the permission ‘Contribute’ to a user or group for a certain list. I’m using C#.

Answer 1

You can do this using the SPRoleAssignment object, e.g.

// Assuming you already have SPWeb and SPList objects ... SPRoleAssignment roleAssignment = new SPRoleAssignment('dom\\user', 'user@dom', 'user', 'some notes'); SPRoleDefinition roleDefinition = web.RoleDefinitions.GetByType(SPRoleType.Contributor); roleAssignment.RoleDefinitionBindings.Add(roleDefinition); if (!myList.HasUniqueRoleAssignments) {     myList.BreakRoleInheritance(true); // Ensure we don't inherit permissions from parent }  myList.RoleAssignments.Add(roleAssignment); myList.Update();