json verisi null olarak alındı ​​

Question

Bir mvc denetleyicisine form verilerini göndermeye çalışıyorum ve kullanıcı gönderim formunu tıklattığında bir istekler kutusunda giriş istediğinde. Bu cevapların formda kontrolöre sunulması gerekmektedir. Şu anda gönderildiğinde, kontrolöre JSON verileri gönderilmiyor.

Form:

@using (Html.BeginForm("BottomRowData", "Tanks", FormMethod.Post, new { @id = "formBottom"})) 
{ 
@Html.AntiForgeryToken() 
@Html.HiddenFor(p => p.TankSerNo) 
@Html.HiddenFor(p => p.AnnularPlateRingWidth) 
@Html.HiddenFor(p => p.connectedtank) 
@Html.HiddenFor(p => p.NumberofAnnularPlates) 
@Html.HiddenFor(p => p.LengthofEachAnnularPlate) 
<div class="row"> 
    <div class="col-md-1 col-xs-4"> 
     <div class="form-group"> 
      <button type="submit" name="action:Save" class="btn btn-primary"> 
       <span class="glyphicon glyphicon-floppy-disk" aria-hidden="true"></span> Save 
      </button> 
     </div> 
    </div> 

    <div class="col-md-4 col-xs-8"> 
     <div class="form-horizontal"> 
      <div class="form-group"> 
       @Html.LabelFor(p => p.TankOwner, "Tank Owner", htmlAttributes: new { @class = "control-label col-md-4" }) 
       <div class="col-md-8"> 
        @Html.DropDownList("TankOwner", null, new { @class = "form-control" }) 
       </div> 
      </div> 
     </div> 
    </div> 

    <div class="col-md-4 col-xs-6"> 
     <div class="form-horizontal"> 
      <div class="form-group"> 
       @Html.LabelFor(model => model.connectedtank.SiteID, "Site (Tank Location)", htmlAttributes: new { @class = "control-label col-md-4" }) 
       <div class="col-md-8"> 
        @Html.HiddenFor(m => m.connectedtank.SiteID) 
        @Html.EditorFor(model => model.connectedtank.Site.SiteName, new { htmlAttributes = new { @class = "form-control", @readonly = true } }) 
       </div> 
      </div> 
     </div> 
    </div> 

    <div class="col-md-3 col-xs-6"> 
     <div class="form-horizontal"> 
      <div class="form-group"> 
       @Html.LabelFor(model => model.TankNumber, "Tank Number", htmlAttributes: new { @class = "control-label col-md-5" }) 
       <div class="col-md-7"> 
        @Html.EditorFor(m => m.TankNumber, new { htmlAttributes = new { @class = "form-control" } }) 
        @Html.ValidationMessageFor(model => model.TankNumber, "", new { @class = "text-danger" }) 
       </div> 
      </div> 
     </div> 
    </div> 
</div> 

<hr style="margin-top:0px" /> 

<fieldset class="fi-border"> 
<legend class="fi-border">Bottom Row Data</legend> 
<div class="row"> 
    <div class="col-sm-3 com-xs-12"> 
     <div class="form-horizontal"> 
      <div class="form-group"> 
       @Html.LabelFor(model => model.NumberofRowsBottom, "Number of Bottom Rows:", htmlAttributes: new { @class = "control-label col-md-6", @style = "padding-top:0px" }) 
       <div class="col-md-6"> 
        @Html.EditorFor(model => model.NumberofRowsBottom, new { htmlAttributes = new { @class = "form-control" } }) 
        @Html.ValidationMessageFor(model => model.NumberofRowsBottom, "", new { @class = "text-danger" }) 
       </div> 
      </div> 
     </div> 
    </div> 

    <div class="col-sm-6 com-xs-12"> 
     <div class="form-horizontal"> 
      <div class="form-group"> 
       @Html.LabelFor(model => model.WeldRowSpacing, "Weld Row Spacing or Plate Width (Comma Seperated):", htmlAttributes: new { @class = "control-label col-md-5", @style = "padding-top:0px" }) 
       <div class="col-md-7"> 
        @Html.EditorFor(model => model.WeldRowSpacing, new { htmlAttributes = new { @class = "form-control" } }) 
        @Html.ValidationMessageFor(model => model.WeldRowSpacing, "", new { @class = "text-danger" }) 
       </div> 
      </div> 
     </div> 
    </div> 

    <div class="col-xs-12 col-sm-3"> 
     <button class="btn btn-default btn-block" type="submit" onclick="JavascriptFunction1()" id="BottomButton"> 
      <strong>1.</strong> Calculate Bottom Row Data 
     </button> 
    </div> 

    <div class="col-sm-12"> 
     @Html.CollectionEditorFor(model => model.BottomRows, "BottomLayout/_AddRow", "/Tanks/GetRowEditor", 
       "Add Rows", new { @style = "display:none" }) 
    </div> 
</div> 

}

Senaryo:

<script type="text/javascript" language="javascript"> 
function JavascriptFunction1() { 
    var url = '@Url.Action("BottomRowData", "Tanks")'; 
    var NumberofRows = parseFloat($('#NumberofRowsBottom').val()); 
    var numberofPlates = []; 
    $("#divLoading").show(); 
    var i = 1; 
    while (i <= NumberofRows) { 
     numberofPlates.push(prompt("Please enter the number of plates on row " + i)); 
     i++; 
    } 
    $.ajax({ 
     type: "POST", 
     url: url, 
     traditional: true, 
     datatype: "json", 
     data: JSON.stringify(numberofPlates), 
     success: function(data){ 
      $("#PID")[0].innerHTML = data; 
      $("#divLoading").hide(); 
     } 

    }); 
} 

Denetleyici:

[HttpPost] 
    [ValidateAntiForgeryToken] 
    public async Task<ActionResult> BottomRowData(BottomLayoutViewModel data, string[] postdata) 
    { 
     var tank = db.Tanks.Find(data.TankSerNo); 
     tank.NumberofRowsBottom = data.NumberofRowsBottom; 
     string[] cRowData = new string[1000]; 
     string BottomWeldData = (tank.Diameter/data.NumberofRowsBottom).ToString(); 
     for (var i = 1; i <= data.NumberofRowsBottom; i++) 
     { 
      if(i == 1) 
      { 
       cRowData[i] = BottomWeldData; 
      } 
      else 
      { 
       cRowData[i] = cRowData[1]; 
       BottomWeldData = BottomWeldData + ", " + cRowData[i]; 
      } 
     } 
     tank.WeldRowSpacing = BottomWeldData; 
     db.Entry(tank).State = EntityState.Modified; 
     await db.SaveChangesAsync(); 
     var Radius = float.Parse((tank.Diameter/2).ToString()); 
     float sumRowData = 0; 
     double[] rowLength = new double[1000]; 
     for (var counter = 1; counter <= data.NumberofRowsBottom; counter++) 
     { 
      var row = new TankBottomLayout(); 
      if (data.BottomRows != null) 
      { 
       row = data.BottomRows.ElementAt(counter - 1); 
      } 
      sumRowData += float.Parse(cRowData[counter]); 
      row.TankSerNo = tank.TankSerNo; 
      row.Tank = tank; 
      row.BLORowNumber = counter; 
      row.BLONumberofPlatesRow = int.Parse(postdata.ElementAt(counter - 1)); 
      rowLength[counter] = 2 * Math.Pow((Math.Pow(Radius, 2) - Math.Pow((sumRowData - Radius), 2)), 0.5); 
      if(counter == 1) 
      { 
       row.BLOWeldRowLength = rowLength[counter]; 
      } 
      else if(counter < data.NumberofRowsBottom/2 + 1) 
      { 
       row.BLOWeldRowLength = rowLength[counter - 1]; 
      } 
      else if(counter == data.NumberofRowsBottom) 
      { 
       row.BLOWeldRowLength = rowLength[counter - 1]; 
      } 
      else 
      { 
       row.BLOWeldRowLength = rowLength[counter]; 
      } 

      if(row.ID <= 0) 
      { 
       db.TankBottomLayouts.Add(row); 
      } 
      else 
      { 
       db.Entry(row).State = EntityState.Modified; 
      } 
     } 
     await db.SaveChangesAsync(); 
     return RedirectToAction("BottomLayout", new { TankSerNo = data.TankSerNo }); 
    } 

Ana problemim, her satırdaki kullanıcı sayısından kullanıcıya sormanın ve bu verileri her satırdaki kaynak aralığını hesaplamak için denetleyiciye göndermenin bir yoluna ihtiyacım olmasıdır. Teşekkürler.

Answer 1

Bu davranış Ajax fonksiyonunun Asynchronosity için, Asenkron fonksiyonları değerleri alma konusunda bu post Oku