Asp.net mvc 5 Ajax.BeginForm根据提交值更改AjaxOptions

如何更改值​​根据按下按钮的提交值确定AjaxOptions的名称

鉴于：

@using (Ajax.BeginForm("function_name", "Controller",
new AjaxOptions
{
    HttpMethod = "POST",
    InsertionMode = InsertionMode.Replace,
    UpdateTargetId = "resultsLoad",
    OnBegin = "function_onBegin",
    OnFailure = "function_onFailure",
    OnSuccess = "function_onSuccess",
    OnComplete = "function_onComplete"
})) {
<button type="submit" id="btn_1" value="submit1" name="submit"></button>
<button type="submit" id="btn_2" value="submit2" name="submit"></button>
}

---

当我按下任何按钮进行post时，我需要更改AjaxOptions值​​在返回新的PartialView之前。

开始时的ajax函数包含第二个参数（未记录）“request”，这是一个包含表单请求信息的对象

function function_onBegin(xhr, request) {
    //console.log(request);
    //request.data = submited form data as json string
    var requestData = request.data;    

    if (requestData.indexOf('anyCondition') >= 0) {
        //do something        
    } else {
        // do something else
    }
}

对请求数据的访问允许实现一些有条件的操作来完成所需的行为

function function_onBegin(xhr, request) {
    //console.log(request);
    //request.data = submited form data as json string
    var requestData = request.data;    

    if (requestData.indexOf('anyCondition') >= 0) {
        //do something        
    } else {
        // do something else
    }
}