MVC4形式的保存到实体框架模型 [英] MVC4 forms that save to entity framework models

问题描述

我第一次使用EF code以下课程模型创建：

I have the following course model created using EF code first:

public class Course
{
    [Key]
    public int CourseID { get; set; }

    [StringLength(50)]
    public string Name { get; set; }

    [StringLength(200)]
    public string Description { get; set; }

    [StringLength(50)]
    public string Author { get; set; }

    public DateTime UploadDate { get; set; }

    public DateTime ExpiryDate { get; set; }

    public int ParticipationPoints { get; set; }

    public string BlobURL { get; set; }

    //1 to many relationship
    public virtual ICollection<Audit> Audits { get; set; }

    public virtual ICollection<Content> Contents { get; set; }

    public virtual ICollection<Enrollment> Enrollments { get; set; }

    public virtual ICollection<Feedback> Feedbacks { get; set; }

    public virtual ICollection<Keyword> Keywords  { get; set; }

    public virtual ICollection<Target> Targets { get; set; }

    public virtual ICollection<CourseSection> CourseSections { get; set; }

    //many to many relationship
    public virtual ICollection<MetaLearningUser> MetaLearningUsers { get; set; }

}

在设计模式中，我有以下的HTML字段：

In design mode I have the following HTML fields:

<form class="custom">
       <fieldset>
         <div class="row">
           <div class="twelve columns">
             <div class="row">
               <div class="six columns">
                 <label>Course Title</label>
                 <input type="text">
               </div>
               <div class="six columns">
                 <label>Author</label>
                 <input type="text">
               </div>
             </div>

             <div class="row">
               <div class="six columns">
                 <label>Keywords</label>
                 <input type="text">
                </div>
                <div class="six columns">
                  <label>Metadata</label>
                  <input type="text">
                </div>
             </div>

             <div class="row">
               <div class="twelve columns">
                 <label>Description</label>
                 <textarea></textarea>
               </div>
             </div>

             <div class="row">
               <div class="six columns bottom20">
                 <label>Media type</label>
                   <div class="custom dropdown"> <a href="#" class="current"> Select media type </a> <a href="#" class="selector"></a>
                     <ul>
                       <li>Screencast</li>
                       <li>Podcast</li>
                       <li>Document</li>
                       <li>SCORM</li>
                     </ul>
                   </div>
               </div>
               <div class="six columns bottom20">
                 <label>Directory</label>
                   <div class="custom dropdown"> <a href="#" class="current"> Select subject </a> <a href="#" class="selector"></a>
                     <ul>                       
                       <li>Human Resources</li>
                       <li>IT Security</li>
                       <li>Corporate Governance</li>
                       <li>Health &amp; Safety</li>
                       <li>Legal</li>
                       <li>IT Infrastructure</li>
                       <li>3rd Parties</li>
                     </ul>
                   </div>
               </div>
           </div>
           <div class="row">
             <div class="six columns">
               <label>Start date</label>
               <input type="date" class="datefield">
             </div>
             <div class="six columns">
               <label>End date</label>
               <input type="date" class="datefield">
             </div>
           </div>
           </div>
         </div>
         <a href="#" class="medium button bottom20">Submit</a>
        </fieldset>
      </form>
    </div>

我怎么能保存在文本框中输入时提交按钮实体框架数据库中的数据是pressed？

How can I save the data entered in the text boxes to the entity framework database when the submit button is pressed?

推荐答案

当您在模型视图发送，使用类似

When you send in the model to the view, use something like

@using(Html.BeginForm("Index"))
{
   @Html.TexboxFor(x => x.Name) // istead of <input type=text>
   @Html.TextborFor(x => x.Description)
   <input type="submit" value="Submit button"/>
}

到模型视图，从而将使其回来后绑定当您单击submitt按钮。

to bind the model to the view, which in turn will make it post back when you click the submitt button.

在你碰到这样的控制器

[HttpPost]
public ActionResult Index(CourseViewModel model) // because you'd want to use a 
// view model and not the entity itself
{
// check if the model is valid
// maybe some more logic
db.SaveChanges();
return View(model);
}

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