In asp.net mvc you can use:
@Html.DropDownListFor(model => model.Category, ViewBag.Category as IEnumerable<SelectListItem>, "-- SELECT --", new { @class = "form-control" })
Using asp.net 5, how do I include the default or null value (-- SELECT --) in a taghelper:
<select asp-for="Category" asp-items="@ViewBag.Category" class="form-control"></select>
You can just insert an option item inside the select:
<select asp-for="Category" asp-items="@ViewBag.Category" class="form-control"> <option disabled selected>--- SELECT ---</option> </select>
The disabled
keyword in the code above means that the "--- SELECT ---" row cannot be picked again once a choice has been selected in the list. If you want the user to be able to blank the selection again (i.e. if it's bound to a nullable field) then just omit disabled.
If you want to store value null to database then use <option selected value="">Full Access</option>
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