public async Task <IActionResult> OnPost(int measurementKeyId) { var measurementKey = await _measurementKeyData.Delete(measurementKeyId); await _measurementKeyData.Commit(); if (measurementKey == null) { return(RedirectToPage("./Error")); } TempData["Message"] = $"{measurementKey.Name} deleted."; return(RedirectToPage("./MeasurementKeyList")); }