public IActionResult OnPost(PartModel part)
{
if (!ModelState.IsValid)
{
Categories = PartCategoryService.GetAll().Select(a => new SelectListItem
{
Value = a.CategoryID.ToString(),
Text = a.Title,
Selected = part.CategoryID == a.CategoryID
});
return(Page());
}
PartService.New(part);
return(RedirectToPage("/Parts/Index"));
}