public async Task <List <KeyValuePair <string, string> > > SubOficinaListarCombos(Office objOficinaBE) { using (SqlConnection cn = new SqlConnection(this.stringConexion)) { await cn.OpenAsync(); SubOfficeDatos objSubOfficeDA = new SubOfficeDatos(); return(await objSubOfficeDA.SubOficinaListarCombos(cn, objOficinaBE)); } }