CODEWITHSUNDEEP
asp.netasp.net-mvc
Haifa Derouiche
Haifa Derouiche

Reputation: 11

Get the Value of a checkBox server Side

i want to get the value of a checkbox... my Checkbox show the Value of the Database "true" or "false" and the user can change the Value (if he dont like it) i get every time the Value false

View:

   <%if ((Boolean)ViewData["Statistik3"])
   {%>                            
        <input type="checkbox" name="Statistik3" value="true" checked= "checked"/>
   <%}
    else
   { %>
       <input type="checkbox" name="Statistik3" value="false"/>  <%--</input>--%>
   <%} %>

Controller C#

[AcceptVerbs(HttpVerbs.Get | HttpVerbs.Post)]
public ActionResult Formular(string button, string decision1, FormEntries entries )
{
    entries.Statistik3 ? "Yes" : "No"
}

Upvotes: 0

Views: 2782

Answers (3)

Jack
Jack

Reputation: 2660

you need to make sure the Checkbox is wrapped within a form element. Something like this

<% using(Html.BeginForm("Formular")){
  <%if ((Boolean)ViewData["Statistik3"])
   {%>                            
        <input type="checkbox" name="Statistik3" value="true" checked= "checked"/>
   <%}
    else
   { %>
       <input type="checkbox" name="Statistik3" value="false"/>  <%--</input>--%>
   <%} %>
<%} %>

As suggested above, you should be using @Html.CheckBox("Statistik3")

Upvotes: 0

Darin Dimitrov
Darin Dimitrov

Reputation: 1039398

Try rendering the checkbox using a server side Html helper. Don't hardcode input elements as you did in your views because this leads to horrible spaghetti code. So replace the entire code you have shown with a simple call to the Html.CheckBox helper which will take care of rendering the proper input element:

@Html.CheckBox("Statistik3")

and now the controller action you are posting to could take a boolean argument with the same name:

[AcceptVerbs(HttpVerbs.Get | HttpVerbs.Post)]
public ActionResult Formular(bool statistik3, string button, string decision1, FormEntries entries)
{
    // you could use the statistik3 boolean argument to determine
    // whether the user checked or not the checkbox
}

The next improvement I would do would be to completely get rid of ViewData and define a view model that will contain all the information this view requires and then use the strongly typed version of the helper: Html.CheckBoxFox.

Upvotes: 1

Peter Smith
Peter Smith

Reputation: 5550

Checkboxes are boolean only types; the value attribute will be ignored and it's only where there is the presence of the absence of the checked attribute. Is you form bound to a data model at all? Try the following:

<%if ((Boolean)ViewData["Statistik3"])
{%>                            
    <input type="checkbox" name="Statistik3"  id="Statistik3" checked="checked"/>
<%}
else
{ %>
   <input type="checkbox" name="Statistik3" id="Statistik3"/>  <%--</input>--%>
<%} %>

and then test for a boolean value on return.

Hope that helps.

Upvotes: 0

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