MVC 5 确定CheckboxFor是否被选中。

Question

虽然有围绕这个话题的问题，但都没有充分回答。

问题：我有一个模型，大概有25个bool属性。用作复选框。我正在寻找一种方法来确定它们是否被选中。抓取该复选框的名称（或id）进行数据库输入。

我目前的方式看起来效率很低。我从formcollection中抓取Id，并有一些条件逻辑。

public ActionResult SubmitUwSelections(FormCollection form)
{
        var cbRating = form["cabRating"]; // Cab Raing ddl
        var filing = form["fileRqd"]; // filing required ddl
        var ifta = form["cbIfta"]; // IFTA cb
        var lossControl = form["lcRqd"]; // Loss control required cb
        var lossControlIf = form["lcInFile"]; // Loss control in file cb
        var app1 = form["AppInFile"]; //Application app in file cb
        var app2 = form["AppRqd"]; //Application app rqd cb
        var um1 = form["UMInFile"]; //UM in file cb
        var um2 = form["UMRqd"]; // UM rqd cb
        var terror1 = form["terrorInFile"]; // terror in file cb
        var terror2 = form["terrorRqd"]; // terror rqd cb
        var lossRun1 = form["LossRunInFile"];// loss run in file cb
        var lossRun2 = form["LossRunRqd"]; //Loss run rqd cb
        var inspect1 = form["cbVehicleInspectInFile"]; //vehicle inspect in file cb
        var inspect2 = form["cbVehicleInspectRqd"]; // vehicle inspect rqd cb
        var mvr1 = form["cbMvrInFile"]; // mvr in file cb
        var mvr2 = form["cbMvrRqd"]; // mvr rqd cb
        var loc1 = form["cbLocInFile"]; //Letter of Credit cb in file
        var loc2 = form["cbLocRqd"]; //Letter of Credit cb required
        var psComments = form["cifComments"]; //section 2 comment box
        var uniqPolicy = form["UniqPolicy"];
        var fileComplete = form["cbFileComplete"];


         //dto first section of FormCollection Form 
         if (ifta == null) { clDto.Ifta_Rqd = false; } else { clDto.Ifta_Rqd = true; }
         if (lossControl == null) { clDto.LossControl_Inspection_Rqd = false; } else { clDto.LossControl_Inspection_Rqd = true; }
         if (lossControlIf == null) { clDto.LcontrolInFile = false; } else { clDto.LcontrolInFile = true; }
         if (app1 == null) { clDto.ApplicationInFile = false; } else { clDto.ApplicationInFile = true; }
         if (app2 == null) { clDto.ApplicationRequired = false; } else { clDto.ApplicationRequired = true; }
         if (um1 == null) { clDto.UM_UimFormsInFile = false; } else { clDto.UM_UimFormsInFile = true; }
         if (um2 == null) { clDto.UM_UimFormsRqd = false; } else { clDto.UM_UimFormsRqd = true; }
         if (terror1 == null) { clDto.TerrorInFile = false; } else { clDto.TerrorInFile = true; }
         if (terror2 == null) { clDto.TerrorRqd = false; } else { clDto.TerrorRqd = true; }
         if (lossRun1 == null) { clDto.LossRunInFile = false; } else { clDto.LossRunInFile = true; }
         if (lossRun2 == null) { clDto.LossRunRqd = false; } else { clDto.LossRunRqd = true; }
         if (inspect1 == null) { clDto.vInspectionInFile = false; } else { clDto.vInspectionInFile = true; }
         if (inspect2 == null) { clDto.vInspectionRqd = false; } else { clDto.vInspectionRqd = true; }
         if (mvr1 == null) { clDto.MvrInFile = false; } else { clDto.MvrInFile = true; }
         if (mvr2 == null) { clDto.MvrRqd = false; } else { clDto.MvrRqd = true; }
         if (loc1 == null) { clDto.LocInFile = false; } else { clDto.LocInFile = true; }
         if (loc2 == null) { clDto.LocRqd = false; } else { clDto.LocRqd = true; }
         if (fileComplete == null) { clDto.FileComplete = false; } else { clDto.FileComplete = true; }
}

这很麻烦，也很慢。有没有更好的方法？有更好的方法来检查它们是否被选中吗？我必须把所有的内容都插入到一个DB中，作为true或false。一定感谢您的帮助。

Answer 1

你可以在MVC中做如下操作。我假设你有一个名为UWSelectionsController的控制器，2个动作（Index和SubmitUwSelections）和一个模型，我称之为ChkBoxModel。所以你有你的模型

public partial class ChkBoxModel
{
    public bool cbRating { get; set; }
    public bool filing { get; set; }
    public bool ifta { get; set; }
    public bool lossControl { get; set; }
    public bool lossControlIf { get; set; }
    public bool app1 { get; set; }
    public bool app2 { get; set; }
    public bool um1 { get; set; }
    public bool um2 { get; set; }
    public bool terror1 { get; set; }
    public bool terror2 { get; set; }
    public bool lossRun1 { get; set; }
    public bool lossRun2 { get; set; }
    public bool inspect1 { get; set; }
    public bool inspect2 { get; set; }
    public bool mvr1 { get; set; }
    public bool mvr2 { get; set; }
    public bool loc1 { get; set; }
    public bool loc2 { get; set; }
    public bool psComments { get; set; }
    public bool uniqPolicy { get; set; }
    public bool fileComplete { get; set; }
}

在你的控制器中，你有2个动作

public class UWSelectionsController : Controller
{
    public ActionResult Index()
    {
        return View(new ChkBoxModel()); ;
    }

    public ActionResult SubmitUwSelections(ChkBoxModel obj)
    {
        //access model bool (chkbox) parameter
    }
}

最后你就有了index.cshtml剃刀标记。

@model WebApplication2.Controllers.ChkBoxModel。

@using (Html.BeginForm("SubmitUwSelections", "Home", FormMethod.Post))
{
    @Html.DisplayNameFor(u => u.app1)
    @Html.CheckBoxFor(u => u.app1)
    <hr />
    @Html.DisplayNameFor(u => u.app2)
    @Html.CheckBoxFor(u => u.app2)

    //add the rest of the model ChkBoxModel properties here

    <hr />
    <button type="submit">Submit</button>
}

现在，当您提交此表格时，您不必检查以下内容

if (ifta == null) { clDto.Ifta_Rqd = false; } else { clDto.Ifta_Rqd = true; }

通过访问传递的模型，你会自动知道某项内容是否被选中，例如obj.ifta会被设置为true或false。家这个帮助。