<WebMethod>public sub SetStockExchange(Exchange as string)
   Application("exchange") = Exchange
end sub
<WebMethod>public function GetStockExchange(  ) as string
   return Application("exchange").ToString(  )
end function

 [WebMethod]
public void SetStockExchange(string Exchange)
{
   Application["exchange"] = Exchange;
}

[WebMethod]
public string GetStockExchange(  )
{
   return Application["exchange"].ToString(  );
}

Option Strict On
Option Explicit On
Imports System
Imports System.Web
Imports System.Web.Services

namespace ProgAspNet

   public class vbStockTicker
.
.
.
      <WebMethod>public sub SetStockExchange(Exchange as string)
         dim app as HttpApplicationState
         app = HttpContext.Current.Application
         app("exchange") = Exchange
      end sub

      <WebMethod>public function GetStockExchange(  ) as string
         dim app as HttpApplicationState
         app = HttpContext.Current.Application
         return app("exchange").ToString(  )
      end function

using System;
using System.Web;
using System.Web.Services;

namespace ProgAspNet
{
   public class csStockTicker
.
.
.
      [WebMethod]
      public void SetStockExchange(string Exchange)
      {
         HttpApplicationState app;
         app = HttpContext.Current.Application;
         app["exchange"] = Exchange;
      }

      [WebMethod]
      public string GetStockExchange(  )
      {
         HttpApplicationState app;
         app = HttpContext.Current.Application;
         return app["exchange"].ToString(  );
      }

<WebMethod(Description:="Returns all the stock symbols whose firm " & _
               "name matches the input string as *str*.")> _
public function GetList(MatchString as string) as ArrayList
   dim a as ArrayList = new ArrayList(  )

   '  Iterate through the array, looking for matching firm names.
   for i = 0 to stocks.GetLength(0) - 1
      '  Search is case sensitive.
      if stocks(i,1).ToUpper().IndexOf(MatchString.ToUpper(  )) >= 0 then
         a.Add(stocks(i,1))
      end if
   next
   a.Sort(  )
   return a
end function

 [WebMethod(Description="Returns all the stock symbols whose firm " + 
               "matches the input string as *str*.")]
public ArrayList GetList(string MatchString)
{
   ArrayList a = new ArrayList(  );

   //  Iterate through the array, looking for matching firm names.
   for (int i = 0; i < stocks.GetLength(0); i++)
   {
      //  Search is case sensitive.
      if ( stocks[i,1].ToUpper().IndexOf(MatchString.ToUpper(  )) >= 0)
         a.Add(stocks[i,1]);
   }
   a.Sort(  );
   return a;
}

public class Stock
   public StockSymbol as string
   public StockName as string
   public Price as double
   public History(2) as StockHistory
end class

public class StockHistory
   public TradeDate as DateTime
   public Price as double
end class

public class Stock
{
   public string StockSymbol;
   public string StockName;
   public double Price;
   public StockHistory[] History = 
         new StockHistory[2];
}

public class StockHistory
{
   public DateTime TradeDate;
   public double Price;
}

<WebMethod(Description:="Returns stock history for " & _
            "the stock symbol specified.")> _
public function GetHistory(StockSymbol as string) as Stock
   dim stock as new Stock

   '  Iterate through the array, looking for the symbol.
   for i = 0 to stocks.GetLength(0) - 1
      '  Do a case-insensitive string compare.
      if (String.Compare(StockSymbol, stocks(i,0), true) = 0) then
         stock.StockSymbol = StockSymbol
         stock.StockName = stocks(i,1)
         stock.Price = Convert.ToDouble(stocks(i,2))

         '  Populate the StockHistory data.
         stock.History(0) = new StockHistory(  )
         stock.History(0).TradeDate = Convert.ToDateTime("5/1/2001")
         stock.History(0).Price = Convert.ToDouble(23.25)

         stock.History(1) = new StockHistory(  )
         stock.History(1).TradeDate = Convert.ToDateTime("6/1/2001")
         stock.History(1).Price = Convert.ToDouble(28.75)

         return stock
      end if
   next
   stock.StockSymbol = StockSymbol
   stock.StockName = "Stock not found."
   return stock
end function

 [WebMethod(Description="Returns stock history for " +
            "the stock symbol specified.")]
public Stock GetHistory(string StockSymbol)
{
   Stock stock = new Stock(  );

   //  Iterate through the array, looking for the symbol.
   for (int i = 0; i < stocks.GetLength(0); i++)
   {
      //  Do a case-insensitive string compare.
      if (String.Compare(StockSymbol, stocks[i,0], true) == 0)
      {
         stock.StockSymbol = StockSymbol;
         stock.StockName = stocks[i,1];
         stock.Price = Convert.ToDouble(stocks[i,2]);

         //  Populate the StockHistory data.
         stock.History[0] = new StockHistory(  );
         stock.History[0].TradeDate = Convert.ToDateTime("5/1/2001");
         stock.History[0].Price = Convert.ToDouble(23.25);

         stock.History[1] = new StockHistory(  );
         stock.History[1].TradeDate = Convert.ToDateTime("6/1/2001");
         stock.History[1].Price = Convert.ToDouble(28.75);

         return stock;
      }
   }
   stock.StockSymbol = StockSymbol;
   stock.StockName = "Stock not found.";
   return stock;
}

Imports System.Data
Imports System.Data.SqlClient

using System.Data;
using System.Data.SqlClient;

<WebMethod(Description:="Returns a data set from the Bugs database.")> _
public function GetDataset(  ) as DataSet
   dim connectionString as string
   dim commandString as string
   dim dataAdapter as SqlDataAdapter
   dim dataSet as new DataSet(  )

   ' connect to the Bugs database
   connectionString = "YourServer; uid=sa; 
      pwd=YourPassword; database= ProgASPDotNetBugs "

   ' get records from the Bugs table
   commandString = "Select BugID, Description from Bugs"

   ' create the data set command object and the DataSet
   dataAdapter = new SqlDataAdapter(commandString, connectionString)

   ' fill the data set object
   dataAdapter.Fill(dataSet,"Bugs")

   return dataSet
end function

 [WebMethod(Description="Returns a data set from the Bugs database.")]
public DataSet GetDataset(  )
{
   // connect to the Bugs database
   string connectionString = "server=YourServer; uid=sa; 
      pwd= YourPassword; database= ProgASPDotNetBugs ";

   // get records from the Bugs table
   string commandString = "Select BugID, Description from Bugs";

   // create the data set command object and the DataSet
   SqlDataAdapter dataAdapter = new SqlDataAdapter(commandString, connectionString);

   DataSet dataSet = new DataSet(  );

   // fill the data set object
   dataAdapter.Fill(dataSet,"Bugs");

   return dataSet;
}

<%@ WebService Language="VB" Class="ProgAspNet.vbStockTicker" %>

Option Strict On
Option Explicit On
Imports System
Imports System.Web.Services
Imports System.Collections
Imports System.Data
Imports System.Data.SqlClient

namespace ProgAspNet

   <WebService (Description:="A stock ticker using VB.NET.", _
            Name:="StockTicker", _
            Namespace:="www.LibertyAssociates.com")> _
   public class vbStockTicker
       inherits System.Web.Services.WebService

        '  Construct and fill an array of stock symbols and prices.
        '  Note: the stock prices are as of 7/4/01.
      dim stocks as string(,) = _
      { _
         {"MSFT","Microsoft","70.47"}, _
         {"DELL","Dell Computers","26.91"}, _
         {"HWP","Hewlett Packard","28.40"}, _
         {"YHOO","Yahoo!","19.81"}, _
         {"GE","General Electric","49.51"}, _
         {"IBM","International Business Machine","112.98"}, _
         {"GM","General Motors","64.72"}, _
         {"F","Ford Motor Company","25.05"} _
      }

      dim i as integer

      public class Stock
         public StockSymbol as string
         public StockName as string
         public Price as double
         public History(2) as StockHistory
      end class

      public class StockHistory
         public TradeDate as DateTime
         public Price as double
      end class

      <WebMethod(Description:="Returns stock history for " & _
                  "the stock symbol specified.")> _
      public function GetHistory(StockSymbol as string) as Stock
         dim stock as new Stock

         '  Iterate through the array, looking for the symbol.
         for i = 0 to stocks.GetLength(0) - 1
            '  Do a case-insensitive string compare.
            if (String.Compare(StockSymbol, stocks(i,0), true) = 0) then
               stock.StockSymbol = StockSymbol
               stock.StockName = stocks(i,1)
               stock.Price = Convert.ToDouble(stocks(i,2))

               '  Populate the StockHistory data.
               stock.History(0) = new StockHistory(  )
               stock.History(0).TradeDate = Convert.ToDateTime("5/1/2001")
               stock.History(0).Price = Convert.ToDouble(23.25)

               stock.History(1) = new StockHistory(  )
               stock.History(1).TradeDate = Convert.ToDateTime("6/1/2001")
               stock.History(1).Price = Convert.ToDouble(28.75)

               return stock
            end if
         next
         stock.StockSymbol = StockSymbol
         stock.StockName = "Stock not found."
         return stock
      end function

      <WebMethod(Description:="Returns all the stock symbols whose " & _
                        "firm name matches the input string as *str*.")> _
      public function GetList(MatchString as string) as ArrayList
           dim a as ArrayList = new ArrayList(  )

         '  Iterate through the array, looking for matching firm names.
         for i = 0 to stocks.GetLength(0) - 1
            '  Search is case sensitive.
            if stocks(i,1).ToUpper().IndexOf(MatchString.ToUpper(  )) _
                                 >= 0 then
                   a.Add(stocks(i,1))
            end if
         next
           a.Sort(  )
           return a
      end function

      <WebMethod(Description:="Returns the stock price for the " & _
                        "input stock symbol.", _
               CacheDuration:=20)> _
      public function GetPrice(StockSymbol as string) as Double
      '  Given a stock symbol, return the price.     
         '  Iterate through the array, looking for the symbol.
         for i = 0 to stocks.GetLength(0) - 1
            '  Do a case-insensitive string compare.
            if (String.Compare(StockSymbol, stocks(i,0), true) = 0) then
               return Convert.ToDouble(stocks(i,2))
            end if
         next

         return 0
      End Function

      <WebMethod(Description:="Returns the firm name for the input " & _
                        "stock symbol.", _
               CacheDuration:=86400)> _
      public function GetName(StockSymbol as string) as string
      '  Given a stock symbol, return the name.     
         '  Iterate through the array, looking for the symbol.
         for i = 0 to stocks.GetLength(0) - 1
            '  Do a case-insensitive string compare.
            if (String.Compare(StockSymbol, stocks(i,0), true) = 0) then
               return stocks(i,1)
            end if
         next

         return "Symbol not found."
      End Function

      <WebMethod(Description:="Sets the stock exchange for the " & _
                           "application.")> _
      public sub SetStockExchange(Exchange as string)
         Application("exchange") = Exchange
      end sub

      <WebMethod(Description:="Gets the stock exchange for the " & _
                           "application. It must previously be set.")> _
      public function GetStockExchange(  ) as string
         return Application("exchange").ToString(  )
      end function

      <WebMethod(Description:="Number of hits per session.", _
               EnableSession:=true)> _
      public function HitCounter(  ) as integer
         if Session("HitCounter") is Nothing then
            Session("HitCounter") = 1
         else
            Session("HitCounter") = CInt(Session("HitCounter")) + 1
         end if

         return CInt(Session("HitCounter"))
      end function

      <WebMethod(Description:="Returns the value of the users " & _
                        "holdings in a specified stock symbol.", _
                        MessageName:="GetValuePortfolio")> _
      public Function GetValue(StockSymbol as string) as double
         '  Put code here to get the username of the current user, fetch 
         '  both the current price of the specified StockSymbol and number  
         '  of shares held by the current user, multiply the two together, 
         '  and return the result. 
         return 0
      end Function

      <WebMethod(Description:="Returns the value of a specified " & _
                        "number of shares in a specified stock symbol.", _
                        MessageName:="GetValueStock")> _
      public Function GetValue(StockSymbol as string, _
                        NumShares as integer) as double
         '  Put code here to get the current price of the specified 
         '  StockSymbol,   multiply it times NumShares, and return 
         '  the result.
         return 0
      end function

      <WebMethod(Description:="Returns a data set from the Bugs " & _ 
                        "database.")> _
      public function GetDataset(  ) as DataSet
         dim connectionString as string
         dim commandString as string
         dim dataAdapter as SqlDataAdapter
         dim dataSet as new DataSet(  )

         ' connect to the Bugs database
         connectionString = "server=Ath13; uid=sa; pwd=stersol; " & _
                        "database=Bugs"

         ' get records from the Bugs table
         commandString = "Select BugID, Description from Bugs"

         ' create the data set command object and the DataSet
         dataAdapter = new SqlDataAdapter(commandString, connectionString)

         ' fill the data set object
         dataAdapter.Fill(dataSet,"Bugs")

         return dataSet
      end function

   End Class
End namespace

<%@ WebService Language="C#" Class="ProgAspNet.csStockTicker" %>

using System;
using System.Web.Services;
using System.Collections;
using System.Data;
using System.Data.SqlClient;

namespace ProgAspNet
{
   [WebService (Description="A stock ticker using C#.",
            Name="StockTicker",
            Namespace="www.LibertyAssociates.com")] 
   public class csStockTicker : System.Web.Services.WebService
     {
        //  Construct and fill an array of stock symbols and prices.
        //  Note: the stock prices are as of 7/4/01.
      string[,] stocks = 
      {
         {"MSFT","Microsoft","70.47"},
         {"DELL","Dell Computers","26.91"},
         {"HWP","Hewlett Packard","28.40"},
         {"YHOO","Yahoo!","19.81"},
         {"GE","General Electric","49.51"},
         {"IBM","International Business Machine","112.98"},
         {"GM","General Motors","64.72"},
         {"F","Ford Motor Company","25.05"}
      };

      public class Stock
      {
         public string StockSymbol;
         public string StockName;
         public double Price;
         public StockHistory[] History = 
               new StockHistory[2];
      }

      public class StockHistory
      {
         public DateTime TradeDate;
         public double Price;
      }

      [WebMethod(Description="Returns stock history for " +
                  "the stock symbol specified.")]
      public Stock GetHistory(string StockSymbol)
      {
         Stock stock = new Stock(  );

         //  Iterate through the array, looking for the symbol.
         for (int i = 0; i < stocks.GetLength(0); i++)
         {
            //  Do a case-insensitive string compare.
            if (String.Compare(StockSymbol, stocks[i,0], true) == 0)
            {
               stock.StockSymbol = StockSymbol;
               stock.StockName = stocks[i,1];
               stock.Price = Convert.ToDouble(stocks[i,2]);

               //  Populate the StockHistory data.
               stock.History[0] = new StockHistory(  );
               stock.History[0].TradeDate = 
                    Convert.ToDateTime("5/1/2001");
               stock.History[0].Price = Convert.ToDouble(23.25);

               stock.History[1] = new StockHistory(  );
               stock.History[1].TradeDate = 
                    Convert.ToDateTime("6/1/2001");
               stock.History[1].Price = Convert.ToDouble(28.75);

               return stock;
            }
         }
         stock.StockSymbol = StockSymbol;
         stock.StockName = "Stock not found.";
         return stock;
      }

      [WebMethod(Description="Returns all the stock symbols whose firm " + 
                        "name matches the input string as *str*.")]
      public ArrayList GetList(string MatchString)
      {
           ArrayList a = new ArrayList(  );

         //  Iterate through the array, looking for matching firm names.
         for (int i = 0; i < stocks.GetLength(0); i++)
         {
            //  Search is case sensitive.
            if ( stocks[i,1].ToUpper().IndexOf(MatchString.ToUpper(  )) >= 0)
                     a.Add(stocks[i,1]);
         }
           a.Sort(  );
           return a;
      }

      [WebMethod(Description="Returns the stock price for the input " + 
                        "stock symbol.",   
               CacheDuration=20)]
      public double GetPrice(string StockSymbol)
      //  Given a stock symbol, return the price.     
      {
         //  Iterate through the array, looking for the symbol.
         for (int i = 0; i < stocks.GetLength(0); i++)
         {
            //  Do a case-insensitive string compare.
            if (String.Compare(StockSymbol, stocks[i,0], true) == 0)
               return Convert.ToDouble(stocks[i,2]);
         }
         return 0;
      }

      [WebMethod(Description="Returns the firm name for the input " +
                             "stock symbol.",
               CacheDuration=86400)]
      public string GetName(string StockSymbol)
      //  Given a stock symbol, return the name.     
      {
         //  Iterate through the array, looking for the symbol.
         for (int i = 0; i < stocks.GetLength(0); i++)
         {
            //  Do a case-insensitive string compare.
            if (String.Compare(StockSymbol, stocks[i,0], true) == 0)
               return stocks[i,1];
         }
         return "Symbol not found.";
      }

      [WebMethod(Description="Sets the stock exchange for the " +
                        "application.")]
      public void SetStockExchange(string Exchange)
      {
         Application["exchange"] = Exchange;
      }

      [WebMethod(Description="Gets the stock exchange for the " + 
               "application. It must previously be set.")]
      public string GetStockExchange(  )
      {
         return Application["exchange"].ToString(  );
      }

      [WebMethod(Description="Number of hits per session.", 
               EnableSession=true)]
      public int HitCounter(  )
      {
         if (Session["HitCounter"] == null)
         {
            Session["HitCounter"] = 1;
         }
         else
         {
            Session["HitCounter"] = ((int) Session["HitCounter"]) + 1;
         }

         return ((int) Session["HitCounter"]);
      }

      [WebMethod(Description="Returns the value of the users holdings " +
                        "in a specified stock symbol.",
               MessageName="GetValuePortfolio")]
      public double GetValue(string StockSymbol)
      {
         /*  Put code here to get the username of the current user, fetch 
            both the current price of the specified StockSymbol and number  
            of shares held by the current user, multiply the two together, 
            and return the result. 
         */
         return 0;
      }

      [WebMethod(Description="Returns the value of a specified " +
                        "number of shares in a specified stock symbol.",
               MessageName="GetValueStock")]
      public double GetValue(string StockSymbol, int NumShares)
      {
         /*  Put code here to get the current price of the specified 
            StockSymbol, multiply it times NumShares, and return the 
            result.
         */
         return 0;
      }

      [WebMethod(Description="Returns a data set from the Bugs " +
                        "database.")]
      public DataSet GetDataset(  )
      {
         // connect to the Bugs database
         string connectionString = "server=Ath13; uid=sa; pwd=stersol; " + 
                        "database=Bugs";

         // get records from the Bugs table
         string commandString = "Select BugID, Description from Bugs";

         // create the data set command object and the DataSet
         SqlDataAdapter dataAdapter = new SqlDataAdapter(commandString, 
                              connectionString);

         DataSet dataSet = new DataSet(  );

         // fill the data set object
         dataAdapter.Fill(dataSet,"Bugs");

         return dataSet;
      }
   }
}