public async Task <ActionResult> Issue(string code)
{
if (string.IsNullOrEmpty(code))
{
return(null);
}
var categories = await tracker.GetCategory(code);
var category = categories.Value;
int newticket = Convert.ToInt32(category.Sequence) + 1;
var Issue = await InitializeModel(new IssueDTO(), newticket.ToString());
return(View(Issue));
}