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illustrates how to call a SQL Server stored procedure








    

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy

Publisher: Sybex;
ISBN: 0782129110
*/

/*
  Example23_7.cs illustrates how to call a SQL Server
  stored procedure
*/

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

public class Example23_7
{

  public static void Main()
  {

    // formulate a string containing the details of the
    // database connection
    string connectionString =
      "server=localhost;database=Northwind;uid=sa;pwd=sa";

    // create a SqlConnection object to connect to the
    // database, passing the connection string to the constructor
    SqlConnection mySqlConnection =
      new SqlConnection(connectionString);

    // formulate a string containing the name of the
    // stored procedure
    string procedureString =
      "Ten Most Expensive Products";

    // create a SqlCommand object to hold the SQL statement
    SqlCommand mySqlCommand = mySqlConnection.CreateCommand();

    // set the CommandText property of the SqlCommand object to
    // procedureString
    mySqlCommand.CommandText = procedureString;

    // set the CommandType property of the SqlCommand object
    // to CommandType.StoredProcedure
    mySqlCommand.CommandType = CommandType.StoredProcedure;

    // open the database connection using the
    // Open() method of the SqlConnection object
    mySqlConnection.Open();

    // run the stored procedure
    mySqlCommand.ExecuteNonQuery();

    // create a SqlDataAdapter object
    SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();

    // set the SelectCommand property of the SqlAdapter object
    // to the SqlCommand object
    mySqlDataAdapter.SelectCommand = mySqlCommand;

    // create a DataSet object to store the results of
    // the stored procedure call
    DataSet myDataSet = new DataSet();

    // use the Fill() method of the SqlDataAdapter object to
    // retrieve the rows from the stored procedure call,
    // storing the rows in a DataTable named Products
    mySqlDataAdapter.Fill(myDataSet, "Products");

    // display the rows in the Products DataTable
    Console.WriteLine("The ten most expensive products are:");
    DataTable products = myDataSet.Tables["Products"];
    foreach (DataRow product in products.Rows)
    {
      Console.WriteLine("Product name = " +
        product["TenMostExpensiveProducts"]);
      Console.WriteLine("Unit price = " +
        product["UnitPrice"]);

    }

    // close the database connection using the Close() method
    // of the SqlConnection object
    mySqlConnection.Close();

  }

}


           
       
    
   
  
   







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