blocks|key|250086|text|我正在寻找一个解决方案来动态显示数据库中的标签，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|250087|checkbox1+:+Option+1+text+from+database
checkbox2+:+Option+2+text+from+database
checkbox3+:+Option+3+text+from+database
checkbox4+:+Option+4+text+from+database|code-block|syntax|javascript|250088|所以上面的解决方案对我都不起作用，所以我这样使用：|250089|+@Html.CheckBoxFor(m+=>+m.Option1,+new+{+@class+=+"options"+})+
+<label+for="Option1">@Model.Option1Text</label>

+@Html.CheckBoxFor(m+=>+m.Option2,+new+{+@class+=+"options"+})+
+<label+for="Option2">@Mode2.Option1Text</label>|250090|这样，当用户单击标签时，复选框将被选中。|250091|也许它能帮助一些人。|250092|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

I was looking for the solution to show the label dynamically from database like this:

<pre><code>checkbox1 : Option 1 text from database
checkbox2 : Option 2 text from database
checkbox3 : Option 3 text from database
checkbox4 : Option 4 text from database
</code></pre>

So none of the above solution worked for me so I used like this:

<pre><code> @Html.CheckBoxFor(m =&gt; m.Option1, new { @class = "options" }) 
 &lt;label for="Option1"&gt;@Model.Option1Text&lt;/label&gt;

 @Html.CheckBoxFor(m =&gt; m.Option2, new { @class = "options" }) 
 &lt;label for="Option2"&gt;@Mode2.Option1Text&lt;/label&gt;
</code></pre>

In this way when user will click on label, checkbox will be selected.

Might be it can help someone.

blocks|key|250125|text|我在使用ASP.NET+MVC5时遇到了一个问题，CheckBoxFor不会在服务器端验证失败时检查我的复选框，即使我的模型显然将值设置为true。我的Razor标记/代码看起来像这样：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|250126|@Html.CheckBoxFor(model+=>+model.MyBoolValue,+new+{+@class+=+"mySpecialClass"+}+)|code-block|syntax|javascript|250127|要使其正常工作，我必须将其更改为：|250128|@{
++++var+checkboxAttributes+=+Model.MyBoolValue+?
++++++++(object)+new+{+@class+=+"mySpecialClass",+@checked+=+"checked"+}+:
++++++++(object)+new+{+@class+=+"mySpecialClass"+};
}
@Html.CheckBox("MyBoolValue",+checkboxAttributes)|250129|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I was having a problem with ASP.NET MVC 5 where CheckBoxFor would not check my checkboxes on server-side validation failure even though my model clearly had the value set to true. My Razor markup/code looked like:

<pre><code>@Html.CheckBoxFor(model =&gt; model.MyBoolValue, new { @class = "mySpecialClass" } )
</code></pre>

To get this to work, I had to change this to:

<pre><code>@{
 var checkboxAttributes = Model.MyBoolValue ?
 (object) new { @class = "mySpecialClass", @checked = "checked" } :
 (object) new { @class = "mySpecialClass" };
}
@Html.CheckBox("MyBoolValue", checkboxAttributes)
</code></pre>

blocks|key|250151|text|将此放置在模型上：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|250152|[DisplayName("Electric+Fan")]
public+bool+ElectricFan+{+get;+set;+}

private+string+electricFanRate;

public+string+ElectricFanRate
{
++++get+{+return+electricFanRate+??+(electricFanRate+=+"$15/month");+}
++++set+{+electricFanRate+=+value;+}
}|code-block|syntax|javascript|250153|在你的cshtml中：|250154|<div+class="row">
++++@Html.CheckBoxFor(m+=>+m.ElectricFan,+new+{+@class+=+""+})
++++@Html.LabelFor(m+=>+m.ElectricFan,+new+{+@class+=+""+})
++++@Html.DisplayTextFor(m+=>+m.ElectricFanRate)
</div>|250155|它将输出以下内容：|250156|​|250157|📷|atomic|offset|length|250158|如果单击复选框或粗体标签，将选中/取消选中该复选框|250159|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/3694df3b24cb13200ef47c429608b43c.png|imageAlt^0|0|0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|16|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|18|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|19|8|@]|9|@]|A|$]]|$1|O|3|P|5|Q|7|1A|8|@]|9|@$R|1B|S|1C|1|1D]]|A|$]]|$1|T|3|U|5|6|7|1E|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]]|W|$X|$5|Y|Z|10|A|$11|12|13|-4]]]]

Place this on your model:

<pre><code>[DisplayName("Electric Fan")]
public bool ElectricFan { get; set; }

private string electricFanRate;

public string ElectricFanRate
{
 get { return electricFanRate ?? (electricFanRate = "$15/month"); }
 set { electricFanRate = value; }
}
</code></pre>

And this in your cshtml:

<pre><code>&lt;div class="row"&gt;
 @Html.CheckBoxFor(m =&gt; m.ElectricFan, new { @class = "" })
 @Html.LabelFor(m =&gt; m.ElectricFan, new { @class = "" })
 @Html.DisplayTextFor(m =&gt; m.ElectricFanRate)
&lt;/div&gt;
</code></pre>

Which will output this:

<img src="https://i.stack.imgur.com/mONwY.png" alt="MVC Output">
If you click on the checkbox or the bold label it will check/uncheck the checkbox

blocks|key|466780|text|当绑定回POST时，上面的答案对我都不起作用，直到我在CSHTML中添加了以下内容|type|unstyled|depth|inlineStyleRanges|entityRanges|data|466781|<div+class="checkbox+c-checkbox">
++++<label>
++++++++<input+type="checkbox"+id="xPrinting"+name="xPrinting"+value="true"++@Html.Raw(+Model.xPrinting+?+"checked"+:+"")>
++++++++<span+class="">Printing
++++</label>
</div>


//+POST:+Index

[HttpPost]
public+ActionResult+Index([Bind(Include+=+"dateInHands,dateFrom,dateTo,pgStatus,gpStatus,vwStatus,freeSearch,xPrinting,xEmbroidery,xPersonalization,sortOrder,radioOperator")]+ProductionDashboardViewModel+model)|code-block|syntax|javascript|466782|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

None of the above answers worked for me when binding back on POST, until I added the following in CSHTML

<pre><code>&lt;div class="checkbox c-checkbox"&gt;
 &lt;label&gt;
 &lt;input type="checkbox" id="xPrinting" name="xPrinting" value="true" @Html.Raw( Model.xPrinting ? "checked" : "")&gt;
 &lt;span class=""&gt;&lt;/span&gt;Printing
 &lt;/label&gt;
&lt;/div&gt;


// POST: Index

[HttpPost]
public ActionResult Index([Bind(Include = "dateInHands,dateFrom,dateTo,pgStatus,gpStatus,vwStatus,freeSearch,xPrinting,xEmbroidery,xPersonalization,sortOrder,radioOperator")] ProductionDashboardViewModel model)
</code></pre>

blocks|key|466821|text|我很难让它工作，并为任何想要/需要使用FromCollection的人添加了另一个解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|466822|而不是：|466823|@Html.CheckBoxFor(model+=>+true,+item.TemplateId)+|code-block|syntax|javascript|466824|将html+helper设置为如下格式：|466825|@Html.CheckBoxFor(model+=>+model.SomeProperty,+new+{+@class+=+"form-control",+Name+=+"SomeProperty"})|466826|然后在视图模型/模型中，无论您的逻辑在哪里：|466827|public+void+Save(FormCollection+frm)
{+++
++++//+to+do+instantiate+object.

++++instantiatedItem.SomeProperty+=+(frm["SomeProperty"]+??+"").Equals("true",+StringComparison.CurrentCultureIgnoreCase);

++++//+to+do+and+save+changes+in+database.
}|466828|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

I had trouble getting this to work and added another solution for anyone wanting/ needing to use FromCollection. 

Instead of:

<pre><code>@Html.CheckBoxFor(model =&gt; true, item.TemplateId) 
</code></pre>

Format html helper like so: 

<pre><code>@Html.CheckBoxFor(model =&gt; model.SomeProperty, new { @class = "form-control", Name = "SomeProperty"})
</code></pre>

Then in the viewmodel/model wherever your logic is:

<pre><code>public void Save(FormCollection frm)
{ 
 // to do instantiate object.

 instantiatedItem.SomeProperty = (frm["SomeProperty"] ?? "").Equals("true", StringComparison.CurrentCultureIgnoreCase);

 // to do and save changes in database.
}
</code></pre>

All I want to know is the proper syntax for the <code>Html.CheckBoxFor</code> HTML helper in ASP.NET MVC.

What I'm trying to accomplish is for the check-box to be initially checked with an ID value so I can reference it in the Controller to see if it's still checked or not.

Would below be the proper syntax?

<pre><code>@foreach (var item in Model.Templates) 
{ 
 &lt;td&gt; 
 @Html.CheckBoxFor(model =&gt; true, item.TemplateId) 
 @Html.LabelFor(model =&gt; item.TemplateName)
 &lt;/td&gt; 
}
</code></pre>

Proper usage of .net MVC Html.CheckBoxFor

数据库

服务器

我只想知道ASP.NET MVC中Html.CheckBoxFor HTML helper的正确语法。我想要完成的是让复选框最初被选中一个ID值，这样我就可以在控制器中引用它，看看它是否仍然被选中。下面是正确的语法吗？@foreach (var item in Model.Templates) { <td> ...

问.net MVC Html.CheckBoxFor的正确使用
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问.net MVC Html.CheckBoxFor的正确使用EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问.net MVC Html.CheckBoxFor的正确使用
EN