Question

I have the following code:

(some.aspx.cs)

        if(Page.IsPostBack)
        {
        bool apple2 = false;
        bool pizza2 = false;
        bool orange2 = false;
        if (apple.Checked)
            apple2 = true;
        if (pizza.Checked)
            pizza2 = true;
        if (orange.Checked)
            orange2 = true;
        }

(some.aspx)

     <tr>
     <td>Food:</td>
     <td>Apple <input type="checkbox" name="food" id="apple" value="apple" runat="server" />Pizza <input type="checkbox" name="food" id="pizza" value="pizza" runat="server" />Orange <input type="checkbox" name="food" id="orange" value="orange" runat="server" /></td>
 </tr>

Now, i send the Boolean variables to SQL database. The problem is only with unchecked boxes. I mean, when you check some checkboxes it sends it as true (and that’s right) but when i uncheck them it remains the same (true).

Addition:
Why too little?
here’s a query…nothing special here

string q = string.Format(@"UPDATE tblUsers SET ......., apple='{8}', orange='{9}' WHERE id='{10}'", ...., apple2, orange2, id);
lib.sql_query(q); // using my sql library...

the datatype is bit….i tried also with string…but no success

P.S. – i also tried with Request.Form[“apple”], and the uncheck worked…but unfortunately the check didn’t…when i check the checkbox it throws me an error:

Conversion failed when converting the varchar value 'on' to data type bit. 

Somebody?

Answer 1

So after a long time of combinations and other stuff it worked…Without any javascripts and hidden fields…
that’s the .cs code

        bool apple2 = (Request.Form["apple"] == "on") ? true : false;
        bool orange2 = (Request.Form["orange"] == "on") ? true : false;
        bool pizza2 = (Request.Form["pizza"] == "on") ? true : false;