如何通过控制器访问模型中的数据？

Question

我知道这看起来像一个简单的问题，但我相信viewbag是什么让我访问模型中的数据，但我想直接访问模型类，而不是创建它的一个实例。我知道你可以通过使用模型类作为参数来实现主索引方法，但是我如何使用我创建的方法来做同样的事情？

这里是我下面的代码，我试图找出如何通过模型类的参数，以便我打电话的方法可以访问所有的信息：

$(document).ready(function() { 
     // if user changes paper type 
     $('#paperTypeJList').change(function() { 
     var value = $(this).val(); 

     $.ajax({ 
      url: '@Url.Action("getNewPrice","Home")', 
      data: {dropdownValue:value, dropdownName: "paperType"}, 
      cache: false, 
      async: true, 
      success: function(response){ 
       alert(response); 
      } 
     }); 
    }); 

Answer 1

我有很好地理解你的问题。你也可以用这样的

[HttpPost] 
public JsonResult getNewPrice(EasyInfoModels model, string dropdownValue, string dropdownName) 
{ 
    // do something with value and return a decimal 
    if(string.IsNullOrEmpty(dropdownValue) && string.IsNullOrEmpty(dropdownName)) 
    { 
     //do something 
     return Json(result) 
    } 
    else 
    return Json("Blank"); 
} 

，并为您的Ajax调用

var datas = { 
     fullName :$("#fullname").val(),//retrieve the value from your model in the view 
     email:"",//retrieve the value from your model in the view 
     phone :"",//retrieve the value from your model in the view 
     topic:"",//retrieve the value from your model in the view 
     subject:"",//retrieve the value from your model in the view 
     paperType:"",//retrieve the value from your model in the view 
     urgency :"",//retrieve the value from your model in the view 
     numOfPages :"",//retrieve the value from your model in the view 
     requirements :"",//retrieve the value from your model in the view 
     style:"",//retrieve the value from your model in the view 
     spacing :"",//retrieve the value from your model in the view 
     price :'',//retrieve the value from your model in the view 
     dropdownValue:value, 
     dropdownName: "paperType"   
    }; 
    $.ajax({ 
     url: '@Url.Action("getNewPrice","Home")', 
     type:"POST", 
     data:datas , 
     contentType: "application/json; charset=utf-8", 
     cache: false, 
     async: true, 
     success: function(response){ 
      alert(response); 
     } 
    }); 

希望这将有助于你打电话给你的方法。 Binder将采取每个值来创建你的模型。