[英]How to save data dynamically from a View in MVC5
我想建立一個問卷調查MVC5項目。 我有一個帶有多個表的MSSQL數據庫,例如:員工,問題,結果...
我創建了一個新的MVC5項目,將其添加到基於數據庫的模型中,並管理所有需要它的CRUD操作。
現在,我對Questionar提出了看法:
@model IEnumerable<ChestionarMVC.Models.FormQuestion>
@{
ViewBag.Title = "Chestionar";
}
<h2>Chestionar</h2>
@foreach (var item in Model)
{
@Html.Partial("_Chestionar",item)
}
<input id="Submit1" type="submit" value="submit" />
還有一個partialView,用兩個文本區域顯示每個問題,一個用於答案,一個用於一些附加信息:
@model ChestionarMVC.Models.FormQuestion
<table border="1" style="width:100%">
<tr>
<td>
@Html.DisplayFor(modelItem => Model.Question)
</td>
</tr>
<tr>
<td>
Raspuns <br />
<textarea id="TextArea1" rows="2" cols="80" style="width:800px; height:100px;"></textarea>
</td>
</tr>
<tr>
<td>
Document <br />
<textarea id="TextArea2" rows="2" cols="80" style="width:400px"></textarea>
</td>
</tr>
</table>
現在,我想在tblResults中保存QuestionID,Answer和Document。 在webforms中,我創建了一個usercontrol,然后使用Foreach usercontrol並保存到數據庫。
在MVC中如何保存所有內容?
這是QuestionsModel:
namespace ChestionarMVC.Models
{
using System;
using System.Collections.Generic;
public partial class FormQuestion
{
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public FormQuestion()
{
this.FormResults = new HashSet<FormResult>();
this.TBLPos = new HashSet<TBLPos>();
}
public int idQuestion { get; set; }
public string Question { get; set; }
public int idCategory { get; set; }
public int idPosition { get; set; }
public Nullable<int> Ordine { get; set; }
public virtual FormCategory FormCategory { get; set; }
public virtual Formular Formular { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<FormResult> FormResults { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<TBLPos> TBLPos { get; set; }
}
}
這是ResultsMOdel:
namespace ChestionarMVC.Models
{
using System;
using System.Collections.Generic;
public partial class FormResult
{
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public FormResult()
{
this.Documentes = new HashSet<Documente>();
}
public int idResult { get; set; }
public int idUser { get; set; }
public int idQuestion { get; set; }
public string Answer { get; set; }
public string RefferenceDocument { get; set; }
public Nullable<System.DateTime> StampDate { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<Documente> Documentes { get; set; }
public virtual Employee Employee { get; set; }
public virtual FormQuestion FormQuestion { get; set; }
}
}
這是用於生成問卷視圖的問卷動作結果:
public ActionResult Chestionar()
{
var formQuestions = db.FormQuestions;
return View(formQuestions.ToList());
}
首先創建一個包含所需視圖屬性的視圖模型(請注意,根據需要添加其他驗證屬性以適合您的需求)
public class QuestionVM
{
public int ID { get; set; }
public string Question { get; set; }
[Required(ErrorMessage = "Please enter and answer")]
public string Answer { get; set; }
public string Document { get; set; }
}
然后創建一個EditorTemplate
。 在/Views/Shared/EditorTemplates/QuestionVM.cshtml
@model QuestionVM
@Html.HiddenFor(m => m.ID)
@Html.HiddenFor(m => m.Question)
@Html.DisplayNameFor(m => m.Question)
@Html.DisplayFor(m => m.Question)
@Html.LabelFor(m => m.Answer)
@Html.TextAreaFor(m => m.Answer)
@Html.ValidationMessageFor(m => m.Answer)
... // ditto for Document (as for Answer)
在主視圖中
@model IEnumerable<QuestionVM>
@using (Html.BeginForm())
{
@Html.EditorFor(m => m)
<input type="submit" ... />
}
請注意, EditorFor()
方法將基於模板為每個Question生成html,並且重要的是將添加正確的name屬性,以使您的表單控件能夠回發並綁定到模型
控制器中的
public ActionResult Chestionar()
{
// Get data model and map to view models
var model = db.FormQuestions.Select(q => new QuestionVM()
{
ID = q.idQuestion,
Question = q.Question,
Answer = .....,
Document = .... // see notes below
};
return View(model);
}
[HttpPost]
public ActionResult Chestionar(IEnumerable<QuestionVM> model)
{
if (!ModelState.IsValid)
{
return View(model);
}
// Get the data model again, map the view model properties back to the data model
// update properties such as user and date
// save and redirect
}
旁注:您的問題表示每個問題的一個(一個)答案和文檔,但是您當前的問題模型具有一個集合( ICollection<FormResult> FormResults
),其中包含Answer
和RefferenceDocument
屬性,因此如果要添加,則不清楚每個問題有多個答案和文檔,或者只有一個。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.