Invalid token ';' in class, struct, or interface member declaration

Question

I'm trying to create a user login form in ASP.NET webforms using web controls. I get this error in the designer class when I compile the code. The code for the login form is as follows :

<form class="cd-form">
    <p class="fieldset">
        <label class="image-replace cd-email" for="signin-email">Username</label>
        <asp:TextBox class="full-width has-padding has-border" ID="signin-email" type="email" placeholder="E-mail" runat="server"></asp:TextBox>
        <span class="cd-error-message">Error message here!</span>
    </p>

    <p class="fieldset">
        <label class="image-replace cd-password" for="signin-password">Password</label>
        <asp:TextBox class="full-width has-padding has-border" ID="signin-password" type="text" placeholder="Password" runat="server"></asp:TextBox>
        <a href="#0" class="hide-password">Hide</a>
        <span class="cd-error-message">Error message here!</span>
    </p>

    <p class="fieldset">
        <input type="checkbox" id="remember-me" checked>
        <label for="remember-me">Remember me</label>
    </p>

    <p class="fieldset">
      <asp:Button ID="btn_login" runat="server" value="Login" OnClick="btn_login_Click1" />
    </p>
</form>

Why am I getting this error?

Edit:

Here's the designer code

public partial class main {

        /// <summary>
        /// signin-email control.
        /// </summary>
        /// <remarks>
        /// Auto-generated field.
        /// To modify move field declaration from designer file to code-behind file.
        /// </remarks>
        protected global::System.Web.UI.WebControls.TextBox signin-email;

        /// <summary>
        /// signin-password control.
        /// </summary>
        /// <remarks>
        /// Auto-generated field.
        /// To modify move field declaration from designer file to code-behind file.
        /// </remarks>
        protected global::System.Web.UI.WebControls.TextBox signin-password;

        /// <summary>
        /// btn_login control.
        /// </summary>
        /// <remarks>
        /// Auto-generated field.
        /// To modify move field declaration from designer file to code-behind file.
        /// </remarks>
        protected global::System.Web.UI.WebControls.Button btn_login;
    }

Answer 1

Using dashes in variable names is not allowedin C#. You do so by specifying signin-email as ID for your asp:TextBox for example. The auto-generated code will use these values in the C# code.

Rename the fields to use underscores, not dashes.