具有值的MVC DropDownList onchange事件 [英] MVC DropDownList onchange event with value

问题描述

我对MVC还是很陌生，并且我试图在更改值时确定DropDownList的值.目前，传递给我的javascript函数的val变量始终为'undefined'.我已经在谷歌上寻找解决方案，到处都有人说要做我现在正在做的事情.我在做什么错了?

I'm pretty new to MVC and i'm trying to determine the value of a DropDownList when the value is changed. At the moment the val variable being passed to my javascript function is always 'undefined'. I've googled for the solution and everywhere says to do exactly what i'm doing right now. What am i doing wrong?

cshtml:

@Html.DropDownListFor(m => m.NearestDealers
     , new SelectListItem[] 
     { new SelectListItem() {
               Text = "No nearest dealers", Value = "0"
          },
          new SelectListItem() {
               Text = "1", Value = "1"
          },
          new SelectListItem() {
               Text = "2", Value = "2"
          },
          new SelectListItem() {
               Text = "3", Value = "3"
          } 
      }, new { onchange = "onNearestDealersChange(this.Value);"})

还有我的javascript:

And my javascript:

function onNearestDealersChange(val) {
    if (val == 0) {
        $("#dealer-pools").addClass("hidden");
    } else {
        $("#dealer-pools").removeClass("hidden");
    }
}

推荐答案

尝试对"this.Value"使用小写的"v"

Try using a lower case 'v' for 'this.Value'

new { onchange = "onNearestDealersChange(this.value);"}

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