MVC3不断重新加载表单页面 [英] MVC3 keeps reloading form page
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问题描述
大家好，我是ASP.NET MVC 3的新手，我尝试将表单数据发送回服务器，但每次单击提交按钮时，表单都会重新加载，所有数据都会丢失。
以下是我的代码的一部分：
SaleController.cs
public class SaleController：Controller
{
// 获取：/ Sale /
public ViewResult MakePurchase（）{
return 查看（ MakePurchase）;
}
[HttpPost]
public ViewResult促销（促销）
{
返回查看（ 销售，销售）;
}
[HttpGet]
public ViewResult Sale（）
{
return View（）;
}
}
MakePurchase.cshtml
@ model SalesTax.Models.Sale
@ {
Layout = null;
}
< ！DOCTYPE html >
< html >
< span class =code-keyword>< head >
< title > MakePurchase < / title >
< / head >
< body >
< div >
@using（Html.BeginForm（））
{
< p > 产品：@ Html.TextBoxFor（x => x.Product）< / p >
< p > 数量：@ Html.TextBoxFor（x => x.Quantity）< / p >
< p > 价格：@ Html.TextBoxFor（x => x.Price）< / p >
< p > 类型：@ Html.TextBoxFor（x => x.Type）< / p >
< p > 原产地：@ Html.TextBoxFor（x => x.Origin）< / p >
< input 类型 = 提交 value = MakePurchase / >
}
< / div < span class =code-keyword>>
< / body >
< / html >
Sale.cshtml
@ model SalesTax.Models.Sale
@ {
Layout = null;
}
< ！DOCTYPE html >
< html >
< span class =code-keyword>< head >
< title > Sale < / title >
< / head >
< body >
< div >
@ {double tax = Model.CalculateTax（Model.Quantity，Model.Price，Model.Type，Model.Origin）; }
您对此产品的税收是：
< p > RS。 @tax < / p > < br / >
@ {double finalPrice = Model.Price + tax;}
最终价格（含税）：
< < span class =code-leadattribute> p > Rs。 @finalPrice < / p > < br / >
< / div >
< / body >
< / html >
Sale.cs
< span class =code-keyword> namespace SalesTax.Models
{
public class 促销
{
public string 产品{获得; set ; }
public int 数量{获得; set ; }
public double 价格{获得; set ; }
public string 输入{获得; set ; }
public string 来源{获得; set ; }
public double CalculateTax（ int 数量， double 价格，字符串类型， string Origin）{
double tax = 0 。 0 ;
for （ int i = 0 ; i < 数量; i ++）
{
if （！（Type.Equals（ Book）|| Type.Equals （ 食物）|| Type.Equals（ 医疗）））
{
tax + = Price * 0 。 1 ;
if （Origin.Equals（ Imported ））
{
tax + = Price * 0 。 05 ;
}
}
其他 {
如果（ Origin.Equals（ Imported））
{
tax + = Price * 0 。 05 ;
}
}
}
返回税;
}
}
}
解决方案
好像你没有任何post方法对于MakePurchase。如下所示更改MakePurchase.cshtml中的表单操作并检查
@using（Html.BeginForm（Sale，Sale，FormMethod.Post））
Hi all, I am new to ASP.NET MVC 3 and I trying to send back form data to the server but every time I click on submit button the form is reloaded and all data is lost.
Below are part of my codes:
SaleController.cs
public class SaleController : Controller
{
// GET: /Sale/
public ViewResult MakePurchase() {
return View("MakePurchase");
}
[HttpPost]
public ViewResult Sale(Sale sale)
{
return View("Sale",sale);
}
[HttpGet]
public ViewResult Sale()
{
return View();
}
}
MakePurchase.cshtml
@model SalesTax.Models.Sale
@{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<title>MakePurchase</title>
</head>
<body>
<div>
@using (Html.BeginForm())
{
<p>Product: @Html.TextBoxFor(x => x.Product)</p>
<p>Quantity: @Html.TextBoxFor(x => x.Quantity)</p>
<p>Price: @Html.TextBoxFor(x => x.Price)</p>
<p>Type: @Html.TextBoxFor(x => x.Type)</p>
<p>Origin: @Html.TextBoxFor(x => x.Origin)</p>
<input type = "submit" value="MakePurchase"/>
}
</div>
</body>
</html>
Sale.cshtml
@model SalesTax.Models.Sale
@{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<title>Sale</title>
</head>
<body>
<div>
@{double tax = Model.CalculateTax(Model.Quantity, Model.Price, Model.Type, Model.Origin); }
Your tax for this Product is:
<p>Rs. @tax</p><br/>
@{double finalPrice = Model.Price + tax;}
Final Price(Tax included):
<p>Rs. @finalPrice</p><br/>
</div>
</body>
</html>
Sale.cs
namespace SalesTax.Models
{
public class Sale
{
public string Product { get; set; }
public int Quantity { get; set; }
public double Price { get; set; }
public string Type { get; set; }
public string Origin { get; set; }
public double CalculateTax(int Quantity, double Price, string Type, string Origin){
double tax = 0.0;
for (int i = 0; i < Quantity; i++)
{
if (!(Type.Equals("Book") || Type.Equals("Food") || Type.Equals("Medical")))
{
tax += Price * 0.1;
if (Origin.Equals("Imported"))
{
tax += Price * 0.05;
}
}
else{
if (Origin.Equals("Imported"))
{
tax += Price * 0.05;
}
}
}
return tax;
}
}
} 解决方案
seems you dont have any post method for MakePurchase. Change the form action in MakePurchase.cshtml as below and check
@using (Html.BeginForm("Sale","Sale", FormMethod.Post))
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