Call server side method at client side using signalR

Question

I am working on an auction site which is in 3-Tier architecture.There is one server side method in AuctionHub.cs file as follows:

 

public BAL.LiveAuctionBAL AuctionBid(string Lot_Id, string InputAmt, string vendorid, string V_AuctionID, string AddModBy, string OpenBidAmt, string Decrementbid, string LastBidAmount, string auctionEndTimer)
{
BAL.LiveAuctionBAL BAL = new BAL.LiveAuctionBAL();
string result = "";
string msg = "", message = "";
try
{
BAL.Auction_Id = Convert.ToInt32(V_AuctionID);
BAL.Lot_Id = Convert.ToInt32(Lot_Id);
BAL.Vendor_Id = Convert.ToInt32(vendorid);
BAL.Bid_Amount = Convert.ToDouble(InputAmt);
if (auctionEndTimer != "")
{
BAL.AuctionEndTimer = DateTime.Parse(auctionEndTimer.ToString());
}
else
{
BAL.AuctionEndTimer = Convert.ToDateTime("01/01/1900");
}

BAL.AddMod_By = AddModBy;

result = BAL.AddAuctionBid();

if (result != "")
{
msg = result;
this.Clients.All.bidUpdated(result);
}
}
catch
{

}
return BAL;
}

}

 

Now I am trying to call this method at client side as follows:

var chat = $.connection.auctionhub;
$(function () {
$.connection.hub.start().done(function () {
chat.server.auctionbid(Lot_Id, InputAmt, vendorid, V_AuctionID, AddModBy, OpenBidAmt, Decrementbid, LastBidAmount, auctionEndTimer);

 });

});

but the method is not getting called at  client side...Can anyone help me please? its urgent.