// To protect from overposting attacks, enable the specific properties you want to bind to, for
// more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync()
{
var emptyExpr = new Expr();
Stopwatch stopWatch = new Stopwatch();
if (await TryUpdateModelAsync <Expr>(
emptyExpr,
"Expr",
s => s.Expression))
{
stopWatch.Start();
try
{
var result = new DataTable().Compute(emptyExpr.Expression, null);
emptyExpr.Result = result.ToString();
}
catch (Exception ex)
{
emptyExpr.Result = ex.Message;
}
stopWatch.Stop();
TimeSpan ts = stopWatch.Elapsed;
string elapsedTime = ts.TotalMilliseconds.ToString();
emptyExpr.TimeSpan = elapsedTime;
var user = await _userManager.GetUserAsync(User);
emptyExpr.User = user;
BillingParam billingparam = await _context.BillingParams.FirstOrDefaultAsync(b => b.BillingParamID == 1);
decimal minutecost = billingparam.MinuteCost;
DateTime starttime = billingparam.StartTime;
DateTime endtime = billingparam.EndTime;
double timecoef = billingparam.TimeCoef;
if (DateTime.UtcNow.TimeOfDay > starttime.TimeOfDay && DateTime.UtcNow.TimeOfDay < endtime.TimeOfDay)
{
emptyExpr.Cost = (double)minutecost * timecoef * ts.TotalMilliseconds / 1000 / 60;
}
else
{
emptyExpr.Cost = (double)minutecost * ts.TotalMilliseconds / 1000 / 60;
}
_context.Expressions.Add(emptyExpr);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
return(Page());
}
public async Task <IActionResult> OnGetAsync()
{
BillingParam = await _context.BillingParams.FirstOrDefaultAsync(m => m.BillingParamID == 1);
if (BillingParam == null)
{
return(NotFound());
}
return(Page());
}
