Default values in selects

Hi all, im programming in .NET C# Language and i wan't to display selects with a default value. It suposed to work displaying the select with the default value selected.

If i display the select without a label it works correctly, but the problem is that is doesn't work when i display the select with a label.

Works correctly (it displays the default value of ViewBag.TypeUser that is a SelectList with default value):

<select asp-for="TypeUser" asp-items="ViewBag.TypeUser" class="mdb-select md-form colorful-select dropdown-primary">
                    <option value="0" disabled>Select type of user</option>
                </select>

Doesn't work(it doens't display the default value of ViewBag.TypeUser that is a SelectList with default value):

  <select asp-for="TypeUser" asp-items="ViewBag.TypeUser" class="mdb-select md-form colorful-select dropdown-primary">
                    <option value="0" disabled>Select type of user</option>
                </select>
                <label asp-for="TypeUser" class="mdb-main-label"></label>

I tested removing the disabled option but nothing changed.

Someone who solved this?

Thanks.