Update value from a model with one from another model

Guest User

Hello, I have a project for school to make an auction website.

I managed to make the controller to Add Bids for Auction, but now I don't know how to update the "Start Price" from Auction with value from bidders:

I don't know exactly but it can be done in the view only?

I tried to do that, but without success.

@Html.DisplayFor(model => model.DataIncheiere)
@Html.DisplayNameFor(model => model.PretInitial)
@Html.DisplayFor(model => model.PretInitial== model.PretInitial + model.Oferte.LastOrDefault(b =>(b.ValoareBid).ToString()))
@Html.DisplayNameFor(model => model.Produse.NumeProdus)

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Mario Scheeren5y ago
Accepted answer
ViewBag.CurrentPrice = Math.Max( model.PretInitial, model.Oferte.Max(x => x.ValoareBid) )

... Now Display ViewBag.CurrentPrice in your Table

A ViewBag is a simple Key-Value-Store only valid on this page. You Can use it to store any kind of data.
+2
Guest User5y ago
I solve it, I already had values decimal but I wrote:
ViewBag.PretCurent = Math.Max(Convert.ToDecimal(Model.PretInitial), Convert.ToDecimal(Model.Oferte.Max((x => x.ValoareBid))));
+1
Guest User5y ago
I made PretInitial and ValoareBid both decimal and now I got this error:

Same thing happens if I make both of them int or double
+1
Mario Scheeren5y ago
Sorry, but why are you having an SByte Value? Both (PretInitial AND
ValoareBid) must be double or decimal - nothing else!

SByte has a Range from 0-255 ... this is a really unconventional choice for a money value which can go up to many 1000 ...
+1
Guest User5y ago
Thanks for the answer, now I had an error:"cannot convert "int" to "sbyte".
So I added this new things:
ViewBag.PretCurent = Math.Max(Convert.ToSByte(Model.PretInitial), Convert.ToSByte(Model.Oferte.Max((x => x.ValoareBid))));
But when I run the application it shows me this error:
+1