protected void btnListRoles_Click(object sender, EventArgs e) { try { rm = new RoleManager(); lstbxRoles.Items.Clear(); rm.List_Roles(txtbURL.Text, txtbToken.Text, txtbToken.Text); foreach (Role r in rm.role_list) { lstbxRoles.Items.Add(r.name + " " + r.id); } if (rm.role_list.Count != 0) { lnkbtnPrintFV.Visible = true; } else { lnkbtnPrintFV.Visible = false; } } catch (Exception x) { lblRole.Text = x.Message; } }