private void ShowDepartmentForm() { if (!AppPermissions.Check("DepartmentForm")) { MessageBox.Show("У вас нет разрешения на использование этой части приложения."); return; } if (_departmentFormOpened) { DepartmentForm.Activate(); DepartmentForm.Focus(); return; } DepartmentForm = new DepartmentList(ApiEndpoint); _departmentFormOpened = true; DepartmentForm.Show(); _departmentFormOpened = false; }