如何设置复选框值以从mvc中的控制器检查 [英] how set checkbox value to checked from controller in mvc

问题描述

我的视图中有一个html表。我有复选框来选择记录并将它们插入我的表格中。这是我的代码：

Hi,
I have a html table in my view. I have checkboxes to select record and insert them into my table. here is my code :

<table id="dtsResult" class="table table-striped table-bordered" cellspacing="0" width="100%">
       <thead>
           <tr>
               <th>SelectAll<input type="checkbox" id="CheckAllRes" /></th>
               <th>Unit</th>
            </tr>
       </thead>
       <tbody>
           @foreach (var item in ViewBag.Result)
           {
               <tr>
                   <td><input type="checkbox" id=@item.RecordID name="res" class="chkres" /></td>
                   <td> @item.UnitNo</td>
               </tr>
           }
       </tbody>
   </table>

现在我的问题是在插入记录后我再次打开这个页面，然后我想检查已经插入的所有复选框。任何人都可以帮助我解决为什么以及如何解决这个问题所以我从db检查了这些复选框。请帮忙。

谢谢

Now my problem is after insert record when i open again this page then i want to checked all check boxes which is already inserted. Can anyone help me with why and how to fix this so I checked these check boxes from db. Please help.
Thanks

推荐答案

<pre lang="c#">@foreach (var item in ViewBag.Result)
{

 <tr>
    <td>
         <input type="checkbox" @if(item.IsSaved){<text>checked</text>}
         id="@item.RecordID" name="res" class="chkres" /></td>
    <td>@item.UnitNo</td>
</tr>

}

@foreach (var item in ViewBag.Result)
          {
              <tr>
                  <td><input type="checkbox" id="@item.RecordID" name="res" class="chkres" checked="@item.IsChecked" /></td>
                  <td> @item.UnitNo</td>
              </tr>
          }

item.IsChecked 必须是bool，而你的 ViewBag.Result 必须包含它。



-KR

item.IsChecked has to be bool, and your ViewBag.Result must contain it.

-KR

模式或任务不清楚，因为您没有解释如何找到添加到数据库的记录。我假设您的 item 对象包含一个属性 IsSaved 。



也就是说，复选框输入可以改为这样的状态，

The schema or task is unclear, as you have not explained how would you find the records that are added to the database. I would assume that your item object holds a property "IsSaved".

That said, the checkbox input can be altered for its state like this,

@foreach (var item in ViewBag.Result)
{
   <tr>
       <td>
            <input type="checkbox" checked="@item.IsSaved" 
            id="@item.RecordID" name="res" class="chkres" /></td>
       <td>@item.UnitNo</td>
   </tr>
}

这将检查一个值，无论是真还是假。然后它会检查它，或者不加以检查。这取决于你的对象。以它代表你的系统的方式实现它。

This would now check for a value, either true or false. Then it would either check it, or leave it unchecked. That depends on your object. Implement it in a way that it represents your system.

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