I need help in this issue I make checkbox for days and even i checked the checkbox to know in C# if it true or false every time return false please check the Code below .. please help
BootStrap Code
<form class="form-horizontal" role="form">
<div class="checkbox checkbox-primary">
<input runat="server" id="checkStar" type="checkbox" data-provide="checkbox" />
<label for="checkbox2">Saturday</label>
</div>
<div class="checkbox checkbox-primary">
<input runat="server" id="checkSun" type="checkbox"/>
<label for="checkbox2">Sunday</label>
</div>
<div class="checkbox checkbox-primary">
<input runat="server" id="checkmon" type="checkbox" />
<label for="checkbox2">monday</label>
</div>
<div class="checkbox checkbox-primary">
<input runat="server" id="chectu" type="checkbox"/>
<label for="checkbox2">tuesday</label>
</div>
<div class="checkbox checkbox-primary">
<input runat="server" id="checwe" type="checkbox"/>
<label for="checkbox2">thursday</label>
</div>
</form>
C# Code
if (checkStar.Checked == false & checkmon.Checked == false & chectu.Checked == false & checwe.Checked == false)
{
textbox1.text="please select one day";
retuern;
}