我正在开发一个MVC项目,我有任务在复选框中选择多个项目,并且希望将这些选定的项目保存到数据库中。为此,我创建了三个表格。第一个是DistrictMaster如何将多个选定的复选框值保存到数据库mvc
public partial class DistrictMaster
{
public int Id { get; set; }
public string DistrictName { get; set; }
public virtual ICollection<PostMaster> PostMasters { get; set; }
}
这里荫进入各区,这样可以节省数据库 第二表邮政局长
public partial class PostMaster
{
public int Id { get; set; }
public string PostName { get; set; }
public string PIN { get; set; }
public Nullable<int> DistrictID { get; set; }
public virtual DistrictMaster DistrictMaster { get; set; }
}
这里我根据从下拉列表中选择的区进入不同的岗位。该DistrictID是外键,将pin码和名称保存到相应的区表
第三表AgentPostMapping
public partial class AgentPostMapping
{
public int Id { get; set; }
public Nullable<int> AgentId { get; set; }
public Nullable<int> PostId { get; set; }
public Nullable<System.DateTime> EffectDate { get; set; }
}
这里的帖子ID不是外键,我需要保存选定或托运复选框中的项目作为此postId的整数。这是Iam麻烦的一部分。
控制器
public ActionResult Create()
{
ViewBag.AgentId = new SelectList(db.AgentMasters, "ID", "FirstName");
ViewBag.DistrictId = new SelectList(db.DistrictMasters, "Id", "DistrictName");
return View();
}
public JsonResult GetPosts(string id)
{
List<SelectListItem> posts = new List<SelectListItem>();
var postList = this.Getpost(Convert.ToInt32(id));
ViewBag.Postdata= this.Getpost(Convert.ToInt32(id));
var postData = postList.Select(m => new SelectListItem()
{
Text = m.PostName,
Value = m.Id.ToString(),
});
return Json(postData, JsonRequestBehavior.AllowGet);
}
public IList<PostMaster> Getpost(int DistrictId)
{
return db.PostMasters.Where(m => m.DistrictID == DistrictId).ToList();
}
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Create([Bind(Include = "Id,AgentId,PostId,EffectDate")] AgentPostMapping agentPostMapping, FormCollection formdata)
{
if (ModelState.IsValid)
{
db.AgentPostMappings.Add(agentPostMapping);
await db.SaveChangesAsync();
return RedirectToAction("Index");
}
ViewBag.AgentId = new SelectList(db.AgentMasters, "ID", "FirstName", agentPostMapping.AgentId);
return View(agentPostMapping);
}
这是我的控制器的一部分,我没有写在[HttpPost]代码。任何人都可以请帮我写代码保存到分贝。
视图(创建)
@model BeyondThemes.BeyondAdmin.Models.AgentPostMapping
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
@Html.LabelFor(model => model.AgentId,"AgentName", htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.DropDownList("AgentId", null, "select", htmlAttributes: new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.AgentId, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.Label("District", htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.DropDownList("DistrictId", ViewBag.DistrictId as SelectList, "-- Please Select --", new { style = "width:250px" })
@*@Html.DropDownList("DistrictID", null, "select", htmlAttributes: new { @class = "form-control" })*@
@*@Html.ValidationMessageFor(model => model.PostMaster.DistrictID, "", new { @class = "text-danger" })*@
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.PostId,"PostName", htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
<div id="PostMaster"></div>
@Html.ValidationMessageFor(model => model.PostId, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-default" />
</div>
</div>
</div>
}
<script type="text/javascript">
$(document).ready(function() {
//District Dropdown Selectedchange event
$("#DistrictId").change(function() {
$("#PostMaster").empty();
$.ajax({
type: 'POST',
url: '@Url.Action("GetPosts")', // Calling json method
dataType: 'json',
data: { id: $("#DistrictId").val() },
// Get Selected post id.
success: function (posts) {
$.each(posts, function (i, post) {
//$("#PostMaster").append('<option value="' + post.Value + '">' +
// post.Text + '</option>');
$("#PostMaster").append('<input type="checkbox" name="postdata">' + post.Text+'<br>');
});
},
error: function (ex) {
alert('Failed to retrieve post.' + ex);
}
});
return false;
})
});
这是页面怎么看都像
当我打的创建按钮通过选择屏幕截图复选框选中的复选框未在[HttpPost]中创建参数
它这样表示
这是为什么在没有帖子ID显示的值。任何人都可以请帮我找到一个解决方案。我该如何解决这个问题?
您的复选框的模式应该是一个字符串数组。每个选定的复选框都与数组中的一个字符串元素(它是ID)相对应。如果你只用复选框创建一个简单的演示,也许这个问题更容易回答。请在您的问题中显示查看。 – roberth
我在我的问题中包含了查看页面 – user355
它对我来说看起来很复杂,但也许我错过了你想要做的事情。看看这个解决方案:http://stackoverflow.com/questions/25038736/post-checked-checkboxes-to-controller-action-without-using-html-helper-like-html – roberth