c# - 为什么我的复选框或单选按钮没有显示在网站上？

Question

每次我在网站上放置一个 asp 单选按钮或复选框时都不显示，这很奇怪，因为它在设计模式下显示。有什么建议么？是css吗？

试图使它们在页面加载时可见仍然无法使其工作。

<form method="post" action="#" runat="server">
    <div class="row">
        <!--EMAIL-->
        <div class="col-6 col-12-mobile">
            <asp:TextBox ID="dfEmail" placeholder="Email" runat="server"></asp:TextBox>
        </div>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator3" Style="color: red" runat="server" ErrorMessage="* Campo por preencher!" ControlToValidate="dfEmail"></asp:RequiredFieldValidator>

        <!--TELEFONE-->
        <div class="col-6 col-12-mobile">
            <asp:TextBox ID="dfTelefone" placeholder="Telefone" runat="server"></asp:TextBox>
        </div>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator2" Style="color: red" runat="server" ErrorMessage="* Campo por preencher!" ControlToValidate="dfTelefone"></asp:RequiredFieldValidator>

        <!--MORADA-->
        <div class="col-6 col-12-mobile">
            <asp:TextBox ID="dfMorada" placeholder="Morada" runat="server"></asp:TextBox>
        </div>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator1" Style="color: red" runat="server" ErrorMessage="* Campo por preencher!" ControlToValidate="dfMorada"></asp:RequiredFieldValidator>
        
        <div class="col-6 col-12-mobile"><asp:RadioButton ID="RadioButton1" Text="Deseja Mudar a Password?" runat="server" OnCheckedChanged="RadioButton1_CheckedChanged" /></div>

        <!--MUDAR PASSWORD-->
        <div class="col-6 col-12-mobile">
            <asp:TextBox ID="dfPassword" placeholder="Password" Textmode="Password" runat="server"></asp:TextBox>
        </div>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator4" Style="color: red" runat="server" ErrorMessage="* Campo por preencher!" ControlToValidate="dfPassword"></asp:RequiredFieldValidator>

        <!--CONFIRMAR MUDAR PASSWORD-->
        <div class="col-6 col-12-mobile">
            <asp:TextBox ID="dfPasswordConf" placeholder="Confirmar Password" Textmode="Password" runat="server"></asp:TextBox>
        </div>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator5" Style="color: red" runat="server" ErrorMessage="* Campo por preencher!" ControlToValidate="dfPasswordConf"></asp:RequiredFieldValidator>

        <!--FAZER ALTERAÇÕES-->
        <div class="col-12">
            <asp:Button ID="btnSubmeterAlteracoes" runat="server" Text="Submeter Alterações" OnClick="btnSubmeterAlteracoes_Click" />
        </div>
   </div>
</form>

标签： c#asp.net