在 ASP 中请求后刷新模型.MVC

Question

我正在用MVC开发一个webApp。我有一个视图，其中显示值和滑块的卷曲，当您滑动时，卷轴需要显示新值。我将带有 POST 的新值从我的 AJAX 调用发送到控制器，对值进行次要计算并将其返回视图因此，卷轴可以显示更新的值。但是，我的观点仍然继续使用起始值。

   @model UGT.UI.Web.MVC.Models.BelastingViewModel 
<script language="JavaScript">
var config1 = liquidFillGaugeDefaultSettings();
@{
        teller = 1;
        string naam_var = null;
        foreach (KeyValuePair<UGT.BL.Domain.BegrotingPackage.Categorie, double> cat in Model.Belasting)
        {
            naam = "fillgauge" + teller;
            naam_var = "gauge" + teller;
            @: var @naam_var = loadLiquidFillGauge("@naam", "@Html.DisplayFor(modelItem => cat.Value)", config1);
                teller++;
        }
    }
function toonCirkels() {
    @{
        teller = 1;
        naam = "fillgauge" + teller;
        string naam_var2 = null;
        foreach (KeyValuePair<UGT.BL.Domain.BegrotingPackage.Categorie, double> cat in Model.Belasting)
        {
            naam_var2 = "gauge" + teller;
            // @: gauge1.update("@Html.DisplayFor(modelItem => cat.Value)");
                 // @: var @naam_var = loadLiquidFillGauge("@naam", "@Html.DisplayFor(modelItem => cat.Value)", config1);
                   // @: @naam_var2.update("@Html.DisplayFor(modelItem => cat.Value)");
             teller++;
         }
        //@:gauge1.update("500");
     }
}

---

public class BelastingsController : Controller
  {
    private BegrotingsManager begrotingsManager = new BegrotingsManager();
    private int gemeenteId = 54;
    private double loon = 200;
    private BelastingViewModel belastingen = new BelastingViewModel();
    // GET: Belastings
    public ActionResult Index()
    {
            var belasting = begrotingsManager.GetBelastingGebruiker(this.loon, gemeenteId);
      belastingen.Belasting = belasting;
      UpdateModel(belastingen);
      return View(belastingen);
    }
    [HttpPost]
    public ActionResult Index(String loon)
    {
      this.loon = Double.Parse(loon);
      var belasting = begrotingsManager.GetBelastingGebruiker(this.loon, gemeenteId);
            belastingen.Belasting = belasting;
            UpdateModel(belastingen);
            return new HttpStatusCodeResult(HttpStatusCode.OK);
           // return RedirectToAction("Index");
    }

---

namespace UGT.UI.Web.MVC.Models
{
  public class BelastingViewModel
  {
    public IDictionary<Categorie, double> Belasting { get; set; }
  }

}

---

     d3.selectAll('.range').on('change', function () {
        this.value = parseInt(this.value);
        if (this.value < 0) this.value = 0;
        else if (this.value > 5000) this.value = 5000;

        var loon = this.value;
        var loonString = "€" + loon;
        d3.select('.range_value').html(loonString);
        sendLoon(loon, loonString);
    });
}
function sendLoon(loon, loonString) {
    $.ajax({
        contentType: "application/json; charset=utf-8",
        url: "/Belastings",
        type: "POST",
        data: JSON.stringify({ "loon": loon }),
        success: function () {
          // window.location.reload();
            toonCirkels();
        },
        error: function () { }
    });
}

Answer 1

Ajax 调用的成功调用"toonCirkels"，它只包含剃刀生成的代码，这些代码在页面加载时填充。此方法的内容永远不会更改，因为它仅包含 RAZOR 生成的代码，因此将始终具有具有相同值的相同逻辑。