验证额外数据动态之前验证验证ajax调用

Question

这是我的代码

<input class="form-control validate[ajax[IsObjectNoExists,condRequired[Level_ID]]] text-box single-line" id="Object_No" name="Object_No" type="text" value="">

自定义脚本（Works）：

$.validationEngineLanguage.allRules["IsObjectNoBatchExists"] = {
      "url": "/DuplicateCheck/IsObjectNoBatchExists/",
      "extraDataDynamic": ['#Block_ID', '#Level_ID', '#Phase_ID', '#txtObjectNoFrom', '#txtObjectNoTo'],
      "alertTextOk": "* This Object No is available",
      "alertText": "* Some of Object No is NOT available within the Range",
      "alertTextLoad": "* Validating, please wait"
};

在调用 ajax [IsObjectNoBatchExists] 之前，我想检查此字段是否为空

"extraDataDynamic": ['#Block_ID', '#Level_ID', '#Phase_ID', '#txtObjectNoFrom', '#txtObjectNoTo']