@model string
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

@if (!string.IsNullOrEmpty(Model) && File.Exists(Model))
{
    string nowTicks = DateTime.Now.Ticks.ToString();
    string fileName = System.IO.Path.GetFileNameWithoutExtension(Model);
    if (fileName.Length != nowTicks.Length || !long.TryParse(fileName, out long ticks))
    {
        <option value="@(Model)">@(fileName)</option>
    }
    else
    {
        <option value="@(Model)">@(new DateTime(ticks).ToString("MM/dd/yyyy hh:mm tt"))</option>
    }
}