CheckBoxList多选样式jquery、C#获取选择项

.checkboxlistlabel
{
margin-right: 20px;
}

var label;
$("#ddlplatFORMinput:Checkbox:checked").each(function () {
label += $(this).next().html();
});

<asp:CheckBoxList ID="ddlplatform" runat="server" RepeatDirection="Horizontal" RepeatLayout="Flow"
CSSclass="checkboxlist">
<asp:ListItemvalue="APP">app</asp:ListItem>
<asp:ListItem Value="移动触屏">移动触屏</asp:ListItem>
<asp:ListItem Value="PC">pc</asp:ListItem>
<asp:ListItem Value="微信">微信</asp:ListItem>
<asp:ListItem Value="微博">微博</asp:ListItem>
</asp:CheckBoxList>

//使用平台
string Platfrom = String.Empty;
forEach (ListItem li in this.ddlplatForm.Items)
{
if (li.selected)
{
Platfrom += li.text + ",";
}
}
Platfrom = Platfrom.Trimend(',');