BootStrap复选框“已选中”并始终返回FALSE

Question

我在这个问题上需要帮助我复选框几天，甚至我选中了复选框 要知道在C＃中，如果每次返回false都是真或假，请查看下面的代码。 请帮忙

BootStrap代码

<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＃代码

if (checkStar.Checked == false & checkmon.Checked == false & chectu.Checked == false & checwe.Checked == false)
{              
    textbox1.text="please select one day";
    retuern;
}

Answer 1

尝试

if (!checkStar.Checked && !checkmon.Checked && !chectu.Checked && !checwe.Checked)
{
textbox1.text="please select one day";
return
}