在mvc5上执行此操作之前，必须绑定数据源
本文关键字：绑定 数据源 mvc5 执行 操作 | 更新日期: 2023-09-27 18:29:06
这是我的控制器
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using C3CardKYC.Models;
using System.Data.Entity.Validation;
using System.IO;
namespace C3CardKYC.Controllers
{
public class HomeController : Controller
{
private ConnectString db = new ConnectString();
//
// GET: /Home/
public ActionResult Index()
{
return View();
}
public ActionResult Create()
{
ViewBag.doctype = new SelectList(db.DocMDs, "Id", "Nationality");
return View();
}
//
// POST: /Home/Create
[HttpPost]
[ValidateAntiForgeryToken]
[ActionName("create")]
public ActionResult Create(intermediate inter)
{
string imagePath = null;
try {
if (ModelState.IsValid)
{
if (inter.pimage != null)
{
var uploadDir = "~/uploads";
imagePath = Path.Combine(Server.MapPath(uploadDir), inter.pimage);
var imageUrl = Path.Combine(uploadDir, inter.pimage);
}
var part1 = new DetailsEntry()
{
ClientName = inter.ClientName,
EmployeeId = inter.EmployeeId,
EmpCitizenId = inter.EmpCitizenId,
EmpName = inter.EmpName,
Nationality = inter.Nationality,
DocumentType = inter.DocumentType,
};
var part2 = new Passport()
{
pissueddate =inter.pissueddate,
pexpirydate=inter.pexpirydate,
pissuedlocation=inter.pissuedlocation,
pimage=inter.pimage
};
db.DetailsEntries.Add(part1);
db.Passports.Add(part2);
db.SaveChanges();
}
}
catch (DbEntityValidationException ex)
{
// Retrieve the error messages as a list of strings.
var errorMessages = ex.EntityValidationErrors
.SelectMany(x => x.ValidationErrors)
.Select(x => x.ErrorMessage);
// Join the list to a single string.
var fullErrorMessage = string.Join("; ", errorMessages);
// Combine the original exception message with the new one.
var exceptionMessage = string.Concat(ex.Message, " The validation errors are: ", fullErrorMessage);
// Throw a new DbEntityValidationException with the improved exception message.
throw new DbEntityValidationException(exceptionMessage, ex.EntityValidationErrors);
}
return View();
}
public ActionResult Delete(string[] ids)
{
int[] id = null;
if(ids!=null)
{
id = new int[ids.Length];
int j = 0;
foreach(string i in ids)
{
int.TryParse(i, out id[j++]);
}
}
if(id!=null && id.Length >0)
{
List<DetailsEntry> allselected = new List<DetailsEntry>();
allselected = db.DetailsEntries.Where(x => id.Contains(x.ClientId)).ToList();
foreach(var i in allselected)
{
db.DetailsEntries.Remove(i);
}
db.SaveChanges();
}
return RedirectToAction("displaygrid");
}
protected override void Dispose(bool disposing)
{
db.Dispose();
base.Dispose(disposing);
}
public ActionResult displaygrid()
{
List<DetailsEntry> details = new List<DetailsEntry>();
details = db.DetailsEntries.ToList();
return View(details);
}
}
}
这是我的观点
@model C3CardKYC.Models.intermediate
@Model C3CardKYC.Models.detailslistmodel
@{
ViewBag.Title = "Create";
}
}
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<link rel="stylesheet" href="/resources/demos/style.css">
<style>
table, td, th {
border: 1px solid green;
border-collapse: collapse;
width: 30%;
}
th {
border: 1px solid black;
background-color: green;
color: white;
}
</style>
<title></title>
</head>
<body>
</body>
</html>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.js"></script>
<script src="//code.jquery.com/jquery-1.11.2.min.js" type="text/javascript"></script>
<script type="text/javascript" src="scripts/jquery-1.8.2.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#passport").hide();
});
$(document).ready(function () {
$('#MovieType').change(function () {
var doctype = $(this).val();
if(doctype=="0")
$("#passport").show();
});
});
</script>
<script type="text/javascript">
function showimagepreview(input) {
if (input.files && input.files[0]) {
var reader = new FileReader();
reader.onload = function (e) {
$('#image01').attr('src', e.target.result);
}
reader.readAsDataURL(input.files[0]);
}
}
$("#txtimg").change(function () {
readURL(this);
});
</script>
@using (Html.BeginForm()) {
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)
<fieldset>
<legend>intermediate</legend>
<div class="editor-label">
@Html.LabelFor(model => model.ClientName)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.ClientName)
@Html.ValidationMessageFor(model => model.ClientName)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.EmployeeId)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.EmployeeId)
@Html.ValidationMessageFor(model => model.EmployeeId)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.EmpCitizenId)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.EmpCitizenId)
@Html.ValidationMessageFor(model => model.EmpCitizenId)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.EmpName)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.EmpName)
@Html.ValidationMessageFor(model => model.EmpName)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Nationality)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Nationality)
@Html.ValidationMessageFor(model => model.Nationality)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.DocumentType)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.DocumentType)
@Html.ValidationMessageFor(model => model.DocumentType)
</div>
@*@*Select Document Type: @Html.DropDownList("doctype", "Select")*@
@*@Html.DropDownListFor(model => model.ddp, new SelectList(
new List<Object>{
new { value = 0 , text = "Passport" },
new { value = 1 , text = "Pan" }
},
"value",
"text",
2))*@
<select id="MovieType" name="MovieType">
<option value="0" >Passport</option>
<option value="1">Pan</option>
<option selected="selected" value="2">Comedy</option>
</select>
<div id="passport">
<div class="editor-label">
@Html.LabelFor(model => model.pissueddate)
</div>
<div class="editor-field">
@Html.TextBoxFor(model => model.pissueddate, new { @id = "datepicker1" })
@Html.ValidationMessageFor(model => model.pissueddate)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.pissuedlocation)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.pissuedlocation)
@Html.ValidationMessageFor(model => model.pissuedlocation)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.pexpirydate)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.pexpirydate)
@Html.ValidationMessageFor(model => model.pexpirydate)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.pimage, new { })
</div>
<div>
@*@Html.LabelFor(model => model.pimage)*@
@Html.TextBoxFor(model => model.pimage, new { type = "file", @onchange = "showimagepreview(this);", @id = "txtimg" })
</div>
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
}
<img id="image01" style="width:200px;height:200px;" />
@Html.Partial("~/Views/Home/displaygrid.cshtml");
这是我的显示网格
@model IEnumerable<C3CardKYC.Models.DetailsEntry>
@{
ViewBag.Title = "displaygrid";
//var grid = new WebGrid(source: Model, rowsPerPage: 10);
WebGrid grid = new WebGrid(Model);
}
<html>
<head>
<title>WebGrid</title>
</head>
<body>
@using (Html.BeginForm("Delete", "Home", FormMethod.Get))
{
@grid.GetHtml(tableStyle: "gridtable", columns: grid.Columns(grid.Column(format: @<text><input type="checkbox" name="ids" value="@item.ClientId" /></text>, header: "select"),
grid.Column("ClientId", "ClientId"),
grid.Column("ClientName", "ClientName"),
grid.Column("EmployeeId", "EmployeeId"),
grid.Column("EmpCitizenId", "EmpCitizenId"),
grid.Column("EmpName", "EmpName"),
grid.Column("Nationality", "Nationality"),
grid.Column("DocumentType", "DocumentType")
)
)
<input type="submit" value="delete" />
}
</body>
</html>
<h2>displayingrid</h2>
我得到了以下错误在mvc5上执行此操作之前，必须绑定数据源。在同一个页面上，我想显示一个表单和一个网络网格。所以我创建了一个局部视图，并在一个视图中渲染，但当我运行时，出现了错误。请建议我解决这个错误。
您既没有将模型发送到视图，也没有将其发送到部分视图。
编辑：
首先，你不能像使用那样在同一视图中有两个模型
@型号C3CardKYC.型号中间@型号C3CardKYC.型号详细信息列表型号
您可以创建一个包含这两个容器的容器，然后将该容器放在视图中。
其次，您需要在控制器操作中获取/生成模型，然后将该模型传递给视图。
我想在主Crate视图中，您希望使用C3CardKYC.Models.intermediate，然后将C3CardKYC.Models.detailslistmodel传递到局部视图。
如果是这样的话，你可以定义一个类：
public class ContainerClass {
public C3CardKYC.Models.detailslistmodel model1 { get; set; }
public C3CardKYC.Models.detailslistmodel model2 { get; set; }
}
在您看来，它将被用作一个模型：
@model namespace.ContainerClass
然后在控制器操作中，您需要生成此类的对象（ContainerClass），设置model1和model2属性，并将生成的对象传递给视图：
return View(modelObject);
完成所有这些后，在您的视图中，您可以使用Model.model1访问中间模型，使用Model.mode2访问详细列表模型。
最后，您还必须将模型传递到局部视图：
@Html.Partial("path", Model.model2)