四處張貼視圖模型

空引用我有這個GET四處張貼視圖模型

public ActionResult Add(int productId, int categoryId, int styleId) 
     { 
      ...

和這個職位：

[HttpPost] 
public ActionResult Add(OrderDetailsViewModel thisWindowModel) 
{ 
    if (!ModelState.IsValid) 
    { 
     return View(thisWindowModel); 
    }

在我看來，即時得到一個空引用異常的位置：

<h2>Order Details:@Model.StyleName</h2>

即使雖然我有這個看法

@Html.HiddenFor(x=>x.StyleName)

我已經調試過它，可以看到這是一個字符串預期。

，當我從我的觀點IM仍然得到一個空引用異常徹底清除線....

任何想法？它對我沒有意義！

enter image description here

感謝

更新：

Get方法是：

public ActionResult Add(int productId, int categoryId, int styleId) 
{ 
AccountInfo objAccData = new AccountInfo(); 
AccountData thisAccInfo = objAccData.GetInfo("ABC");//TempData["FakeAccNo"].ToString()); 
CheckSupplier objCheckFrameSupp = new CheckSupplier(styleId, thisAccInfo.DepNo); 
int FrameSupp = objCheckFrameSupp.GetFrameSupplier(); 


WindowColoursFromStyle objColItems = new WindowColoursFromStyle(styleId); 


WindowsOptionsFromStyleSupplier objStyleOps = new WindowsOptionsFromStyleSupplier(styleId, FrameSupp, categoryId); 

var repo = new ProductsRepository(); 
var style = repo.GetStyle(styleId); 
var productCategory = repo.GetProductsCategory(categoryId); 
var product = repo.GetProduct(productId); 
var salesOrderId = SessionData.SalesOrderId; 

return View(new OrderDetailsViewModel(salesOrderId, "Add") 
{ 
    StyleName = style.Name, 
    MinimumHeight = style.Minimum_Height, 
    MinimumWidth = style.Minimum_Width, 
    MaximumWidth = style.Maximum_Width, 
    MaximumHeight = style.Maximum_Height, 
    External_Image_Path = style.External_Image_Path, 
    Category = productCategory, 
    Product = product, 
    InternalColours = objColItems.InternalColours, 
    ExternalColours = objColItems.ExternalColours, 
    CillOptions = objStyleOps.CillOptions, 
    AddOnBottomOptions = objStyleOps.AddOnsOptions, 
    AddOnTopOptions = objStyleOps.AddOnsOptions, 
    AddOnLeftOptions = objStyleOps.AddOnsOptions, 
    AddOnRightOptions = objStyleOps.AddOnsOptions, 
    NoTransoms = objStyleOps.NoTransoms, 
    NoDummyTransoms = objStyleOps.NoDummyTransoms, 
    NoMullions = objStyleOps.NoMullions, 
    NoDummyMullions = objStyleOps.NoDummyMullions, 
    GlassUnits = objStyleOps.GlassUnits, 
    GlassTypes = objStyleOps.GlassOptions, 
    HasOpener = objStyleOps.HasOpeners, 
    Handles = objStyleOps.HandleOptions, 
    Lock = objStyleOps.LockOptions, 
    Stay = objStyleOps.StayOptions, 
    FrameThicknessBottom = objStyleOps.FrameThicknessOptions, 
    FrameThicknessTop = objStyleOps.FrameThicknessOptions, 
    FrameThicknessLeft = objStyleOps.FrameThicknessOptions, 
    FrameThicknessRight = objStyleOps.FrameThicknessOptions, 
    MullionThickness = objStyleOps.MullionThicknessOptions, 
    TransomThickness = objStyleOps.TransomThinknessOptions, 
    SashThinkness = objStyleOps.SashThinknessOptions, 
    FrameVent = objStyleOps.VentOptions, 
    SashVent = objStyleOps.VentOptions, 
    WindowStyleID = styleId, 
    AccountNumber ="BTCA",// TempData["FakeAccNo"].ToString(), 
    DepotNumber = thisAccInfo.DepNo, 
    FrameSupplier = FrameSupp, 
    FrameNumber = 1,// (int)TempData["FrameNumber"], 
    DripBars = objStyleOps.DripBarOptions, 
    DrainageOptions = objStyleOps.DrainageOptions, 
    RestrictorOptions = objStyleOps.RestrictorOptions, 
    ReinforcingTypes = objStyleOps.ReinforcingTypes, 
    ReinforcingRules = objStyleOps.ReinforcingRules, 
    IsDoor = objStyleOps.isDoor, 
     KickPlateOptions = objStyleOps.KickPlateOptions 
    }); 
}

視圖頂部的幾行是esentially ....

@model ViewModel.OrderDetailsViewModel 



<div class="row heading-row"> 
    <div class="col-md-8"> 
     @*<h2>Order Details:@(Model.StyleName)</h2>*@ 
    </div> 


</div> 

@Html.Partial("_OrderDetailsForm",Model)

這與基本上選擇/下拉菜單的負載，

局部視圖形式爲開始：

@model ViewModel.OrderDetailsViewModel 



@using (Html.BeginForm(Model.FormType, "Products", FormMethod.Post, new { @class = "form-horizontal" })) 
{

來源

2014-04-01 raklos

請添加'OrderDetailsViewModel'的代碼。也是你的全部行動和觀點。 –

如何使用「int productId，int categoryId，int styleId」，參數？獲取方法的分享返回部分，請 –

您如何在視圖中定義模型？發佈您的視圖的開始（頂部）幾行，並將其名稱文件 – Satpal

嘗試：添加OrderDetailsViewModel等參數來獲取動作。這是從POST動作發出的模型：

public ActionResult Add(int productId, int categoryId, int styleId, OrderDetailsViewModel modelComesFromPostAction) 
{ 
    if(modelComesFromPostAction == null) 
    { 
    //your GET action code will get here. 
    } 
    else 
    { 
    return View(modelComesFromPostAction); 
    } 
}

來源

2014-04-02 08:00:58

四處張貼視圖模型

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