asp.net mvc 从视图中的文本框获取数据返回存储过程以编辑记录
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【中文标题】asp.net mvc 从视图中的文本框获取数据返回存储过程以编辑记录【英文标题】：asp.net mvc getting data from textbox on view back to stored procedure to edit record 【发布时间】：2022-01-15 19:11:06 【问题描述】：我是 ASP.NET 的新手，但已经做了 20 年的桌面开发。我有一个Customer 类，字段为CustId, CustName, CustNotes。
我有一个名为CustView 的视图，其中包含一些输入框，这些输入框将使用CustID 预先填充上一个视图中的客户详细信息。
我可以在文本框中显示客户详细信息，但无法将用户编辑的文本框（即用户更改客户名称）返回到操作中的存储过程。
我使用名为Cust1DBHandle 的DB 类来调用存储过程。我设置了 3 个按钮和 3 个操作，以通过传递变量或使用 RequestString 使它们中的任何一个工作，但没有任何作用。
问题 #1：如何将新文本值作为全局变量、操作中的变量或使用数据模型传回？
问题 #2：在CustViewDBHandle 中，我填充了结果列表。如果只针对一行数据，这样做是否正确？
问题#3：当按下执行存储过程的SAVE按钮时，控制器中的动作是否必须有return？
谢谢。
Cust.cs 模型
public partial class Cust
[DisplayName("Cust ID")]
public Int32 CustID get; set;
[DisplayName("Customer Name")]
// [Required(ErrorMessage = "This field is required")]
public string CustName get; set;
[DisplayName("Customer Notes")]
public string CustNotes get; set;
public string ErrorMessageCust get; set;
CustView.cshtml:
@model IEnumerable<App22.Models.Cust>
@
ViewBag.Title = "CustView";
<h2>@ViewBag.Title.</h2>
<h3>@ViewBag.Message</h3>
<header>
</header>
<meta name="viewport" content="width=device-width" />
<title>CustViewy</title>
<html>
<head>
</head>
<style>
th, td
padding: 5px;
</style>
<body>
<p>
</p>
<p>CUSTOMER DETAILS ARE HERE</p>
<form name="1" method="post">
<fieldset>
<legend>Headline Details</legend>
<table>
@foreach (var item in Model)
<tr>
<td>
<label for="CustID">CustID:</label>
</td>
<td>
<input type="text" name="1CustID" value="@Html.DisplayFor(modelItem =>
item.CustID)" />
</td>
</tr>
<tr>
<td>
<label for="CustName">CustName:</label>
</td>
<td>
<input type="text" name="2CustName" value="@Html.DisplayFor(modelItem
=> item.CustName)" />
</td>
</tr>
<td>
<label for="CustNotes">Cust Notes:</label>
</td>
<td>
<input type="text" name="3CustNotes" value="@Html.DisplayFor(modelItem =>
item.CustNotes)" />
</td>
<tr>
<td></td>
<td>
<input type="submit" name="action:Save1" value="Save" />
<button style="background-color:red" type="button" name="tree0"
class="btn btn-primary" onclick="location.href='@Url.Action("SaveCust0","Cust1")'">
SAVE0 »
</button>
<button style="background-color:blue" type="button" name="tree1"
class="btn btn-primary" onclick="location.href='@Url.Action("SaveCust1","Cust1",new CustyIDSave = item.CustID , CustyNameSave = item.CustName )'">
SAVE1 »
</button>
<button style="background-color:green" type="button" name="tree2" class="btn btn-primary" onclick="location.href='@Url.Action("SaveCust2","Cust1")'">
SAVE2 »
</button>
</td>
<td>
</td>
</tr>
</table>
</fieldset>
</form>
</body>
</html>
Cust1Controller.cs:
public class Cust1Controller : Controller
public ActionResult SaveCust0()
string message = "";
message = Request.Form["CustName"].ToString();
return Content(message);
CustViewDBHandle dbhandle = new CustViewDBHandle();
ModelState.Clear();
dbhandle.SaveCust(Convert.ToInt32(Request.Form["CustID"]),
Request.Form["CustName"].ToString());
public ActionResult SaveCust1(int CustyIDSave, string CustyNameSave)
CustViewDBHandle dbhandle = new CustViewDBHandle();
ModelState.Clear();
dbhandle.SaveCust(CustyIDSave, CustyNameSave);
return null;
[HttpPost]
public ActionResult SaveCust2(int CustyIDSave, string CustyNameSave)
CustViewDBHandle dbhandle = new CustViewDBHandle();
ModelState.Clear();
dbhandle.SaveCust(CustyIDSave, CustyNameSave);
return null;
// GET: Cust1
public ActionResult Index()
Cust1DBHandle dbhandle = new Cust1DBHandle();
ModelState.Clear();
return View("~/Views/Cust/Cust1.cshtml",dbhandle.GetCust(""));
// return View("~/Views/Cust/Cust1.cshtml"); //This works
[HttpGet]
public ActionResult Reload(string tree)
//tree = "Breaker2";
Cust1DBHandle dbhandle = new Cust1DBHandle();
ModelState.Clear();
return View("~/Views/Cust/Cust1.cshtml", dbhandle.GetCust(tree));
//Cust1DBHandle dbhandle = new Cust1DBHandle();
//ModelState.Clear();
//return View("~/Views/Cust/Cust1.cshtml", dbhandle.GetCust(SearchBy));
// return View("~/Views/Cust/Cust1.cshtml"); //This works
public ActionResult ViewCust(int CustyIDView)
//tree = "Breaker2";
CustViewDBHandle dbhandle = new CustViewDBHandle();
ModelState.Clear();
return View("~/Views/Cust/CustView.cshtml", dbhandle.GetCust(CustyIDView));
//Cust1DBHandle dbhandle = new Cust1DBHandle();
//ModelState.Clear();
//return View("~/Views/Cust/Cust1.cshtml", dbhandle.GetCust(SearchBy));
// return View("~/Views/Cust/Cust1.cshtml"); //This works
CustViewDBHandle.cs:
public class CustViewDBHandle
// ********** VIEW CUSTOMER DETAILS ********************
public List<Cust> GetCust(int CustyID)
GlobalVar.connection();
List<Cust> CustyChosen = new List<Cust>();
SqlCommand cmd = new SqlCommand("psv_CustView1", GlobalVar.con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@CustyID", CustyID);
SqlDataAdapter sd = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
GlobalVar.con.Open();
sd.Fill(dt);
GlobalVar.con.Close();
foreach (DataRow dr in dt.Rows)
CustyChosen.Add(
new Cust
CustID = Convert.ToInt32(dr["CustID"]),
CustName = Convert.ToString(dr["CustName"]),
CustNotes = Convert.ToString(dr["CustNotes"]),
);
GlobalVar.GlobCustName1 = Convert.ToString(dr["CustName"]); //This method uses
Global Var to get data to pass to form. Can pass anything that way.
return CustyChosen;
public int SaveCust(int CustyID, string CustyName)
GlobalVar.connection();
SqlCommand cmd = new SqlCommand("psu_CustSave1", GlobalVar.con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@CustyID", CustyID);
cmd.Parameters.AddWithValue("@CustyName", CustyName);
GlobalVar.con.Open();
cmd.ExecuteNonQuery();
//SqlDataAdapter sd = new SqlDataAdapter(cmd);
//DataTable dt = new DataTable();
//sd.Fill(dt);
GlobalVar.con.Close();
return 1;
【问题讨论】：
【参考方案1】：这里有很多东西要解析，但让我印象深刻的是你注意到的问题的主要部分是：
a) 你在控制器上的方法并不都是用 HttpPost 属性修饰的。
b) 您呈现的表单上的操作将查找名称与 get 匹配的 POST 端点
也就是说，鉴于这是非常不习惯的 asp.net MVC 代码，您会发现很难找到如何完成这项工作的答案。
我强烈建议学习一些教程，因为 Web 开发与 Windows 开发有很大不同，面临着不同的挑战。希望您的经验能让您快速浏览一遍。
【讨论】：
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