ASP.NET & Csharp (C#)

ASP.NET & Csharp (C#) , Here you can find my posts about .NET c# .

Call Simple Store Procedure

Posted on by coder 
   


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

class Class1 {
   static void Main(string[] args) {
    SqlConnection cnnUserMan;
    SqlCommand cmmUser;
    object objNumUsers;

    // Instantiate and open the connection
    cnnUserMan = new SqlConnection("server=(local)SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI");
    cnnUserMan.Open();

    // Instantiate and initialize command
    cmmUser = new SqlCommand("SimpleStoredProcedure", cnnUserMan);
    cmmUser.CommandType = CommandType.StoredProcedure;

    objNumUsers = cmmUser.ExecuteScalar();
    Console.WriteLine(objNumUsers.ToString());
   }
}

Get Return from SQL Server store procedure

Posted on by coder 
   


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

class Test
{
  public static void Main()
  {
    SqlConnection mySqlConnection =new SqlConnection("server=(local)SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
    mySqlConnection.Open();

    SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
    mySqlCommand.CommandText =
      "EXECUTE @MyProductID = AddProduct3 @MyProductName, " +
      "@MySupplierID, @MyCategoryID, @MyQuantityPerUnit, " +
      "@MyUnitPrice, @MyUnitsInStock, @MyUnitsOnOrder, " +
      "@MyReorderLevel, @MyDiscontinued";

    mySqlCommand.Parameters.Add("@MyProductID", SqlDbType.Int);
    mySqlCommand.Parameters["@MyProductID"].Direction = ParameterDirection.Output;
    mySqlCommand.Parameters.Add("@MyProductName", SqlDbType.NVarChar, 40).Value = "Widget";
    mySqlCommand.Parameters.Add("@MySupplierID", SqlDbType.Int).Value = 1;
    mySqlCommand.Parameters.Add("@MyCategoryID", SqlDbType.Int).Value = 1;
    mySqlCommand.Parameters.Add("@MyQuantityPerUnit", SqlDbType.NVarChar, 20).Value = "1 per box";
    mySqlCommand.Parameters.Add("@MyUnitPrice", SqlDbType.Money).Value = 5.99;
    mySqlCommand.Parameters.Add("@MyUnitsInStock", SqlDbType.SmallInt).Value = 10;
    mySqlCommand.Parameters.Add("@MyUnitsOnOrder", SqlDbType.SmallInt).Value = 5;
    mySqlCommand.Parameters.Add("@MyReorderLevel", SqlDbType.SmallInt).Value = 5;
    mySqlCommand.Parameters.Add("@MyDiscontinued", SqlDbType.Bit).Value = 1;

    SqlDataReader mySqlDataReader = mySqlCommand.ExecuteReader();

    while (mySqlDataReader.Read())
    {
      Console.WriteLine("mySqlDataReader[" ProductName"] = " +
        mySqlDataReader["ProductName"]);
      Console.WriteLine("mySqlDataReader[" UnitPrice"] = " +
        mySqlDataReader["UnitPrice"]);
    }

    mySqlDataReader.Close();

    Console.WriteLine("New ProductID = " + mySqlCommand.Parameters["@MyProductID"].Value);

    mySqlConnection.Close();
  }
}

Call the SQL Server AddProduct() store procedure

Posted on by coder 
   


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

class Test
{
  public static void Main()
  {
    SqlConnection mySqlConnection =new SqlConnection("server=(local)SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
    mySqlConnection.Open();

    SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
    mySqlCommand.CommandText =
      "EXECUTE AddProduct @MyProductID OUTPUT, @MyProductName, " +
      "@MySupplierID, @MyCategoryID, @MyQuantityPerUnit, " +
      "@MyUnitPrice, @MyUnitsInStock, @MyUnitsOnOrder, " +
      "@MyReorderLevel, @MyDiscontinued";

    mySqlCommand.Parameters.Add("@MyProductID", SqlDbType.Int);
    mySqlCommand.Parameters["@MyProductID"].Direction = ParameterDirection.Output;
    mySqlCommand.Parameters.Add( "@MyProductName", SqlDbType.NVarChar, 40).Value = "Widget";
    mySqlCommand.Parameters.Add( "@MySupplierID", SqlDbType.Int).Value = 1;
    mySqlCommand.Parameters.Add( "@MyCategoryID", SqlDbType.Int).Value = 1;
    mySqlCommand.Parameters.Add( "@MyQuantityPerUnit", SqlDbType.NVarChar, 20).Value = "1 per box";
    mySqlCommand.Parameters.Add( "@MyUnitPrice", SqlDbType.Money).Value = 5.99;
    mySqlCommand.Parameters.Add( "@MyUnitsInStock", SqlDbType.SmallInt).Value = 10;
    mySqlCommand.Parameters.Add( "@MyUnitsOnOrder", SqlDbType.SmallInt).Value = 5;
    mySqlCommand.Parameters.Add( "@MyReorderLevel", SqlDbType.SmallInt).Value = 5;
    mySqlCommand.Parameters.Add( "@MyDiscontinued", SqlDbType.Bit).Value = 1;

    mySqlCommand.ExecuteNonQuery();

    Console.WriteLine("New ProductID = " + mySqlCommand.Parameters["@MyProductID"].Value);

    mySqlConnection.Close();
  }
}

Populate a DataSet object using a store procedure

Posted on by coder 
   


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

class PopulateDataSetUsingProcedure
{
  public static void Main()
  {
    SqlConnection mySqlConnection =new SqlConnection("server=(local)SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");

    SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
    mySqlCommand.CommandText = "EXECUTE CustOrderHist @CustomerID";
    mySqlCommand.Parameters.Add("@CustomerID", SqlDbType.NVarChar, 5).Value = "ALFKI";

    SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
    mySqlDataAdapter.SelectCommand = mySqlCommand;
    DataSet myDataSet = new DataSet();
    mySqlConnection.Open();
    Console.WriteLine("Retrieving rows from the CustOrderHist() Procedure");
    int numberOfRows = mySqlDataAdapter.Fill(myDataSet, "CustOrderHist");
    Console.WriteLine("numberOfRows = " + numberOfRows);
    mySqlConnection.Close();

    DataTable myDataTable = myDataSet.Tables["CustOrderHist"];
    foreach (DataRow myDataRow in myDataTable.Rows)
    {
      Console.WriteLine("ProductName = " + myDataRow["ProductName"]);
      Console.WriteLine("Total = " + myDataRow["Total"]);
    }
  }
}

Illustrates simple stored procedures with unnamed parameters in the query

Posted on by coder 


   

using System;
using System.Data;
using System.Data.OleDb;

public class Prepare {    
 public static void Main () { 
   String connect = "Provider=Microsoft.JET.OLEDB.4.0;data source=.Employee.mdb";
   OleDbConnection con = new OleDbConnection(connect);
   con.Open();  
   Console.WriteLine("Made the connection to the database");

   OleDbCommand cmd = con.CreateCommand();
   cmd.CommandText ="SELECT First_name FROM Employee WHERE ID = ?";
   OleDbParameter param = new OleDbParameter();
   cmd.Parameters.Add(param);
   param.Value = "01";
   OleDbDataReader reader = cmd.ExecuteReader();
   Console.WriteLine("Using a stored procedure");
   while(reader.Read()) 
     Console.WriteLine("{0}", reader.GetString(0));
   reader.Close();

   param.Value = "01";
   reader = cmd.ExecuteReader();
   Console.WriteLine("Using a stored procedure");
   while(reader.Read()) 
     Console.WriteLine("{0}", reader.GetString(0));
   reader.Close();


   con.Close();
 }
}

Call the SQL Server AddProduct() stored procedure with SqlCommand

Posted on by coder 
   
 

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

class ExecuteAddProduct {
    public static void Main() {
        SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa");
        mySqlConnection.Open();
        SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
        mySqlCommand.CommandText =
          "EXECUTE AddProduct @MyProductID OUTPUT, @MyProductName, " +
          "@MySupplierID, @MyCategoryID, @MyQuantityPerUnit, " +
          "@MyUnitPrice, @MyUnitsInStock, @MyUnitsOnOrder, " +
          "@MyReorderLevel, @MyDiscontinued";

        mySqlCommand.Parameters.Add("@MyProductID", SqlDbType.Int);
        mySqlCommand.Parameters["@MyProductID"].Direction = ParameterDirection.Output;
        mySqlCommand.Parameters.Add("@MyProductName", SqlDbType.NVarChar, 40).Value = "Widget";
        mySqlCommand.Parameters.Add("@MySupplierID", SqlDbType.Int).Value = 1;
        mySqlCommand.Parameters.Add("@MyCategoryID", SqlDbType.Int).Value = 1;
        mySqlCommand.Parameters.Add("@MyQuantityPerUnit", SqlDbType.NVarChar, 20).Value = "1 per box";
        mySqlCommand.Parameters.Add("@MyUnitPrice", SqlDbType.Money).Value = 5.99;
        mySqlCommand.Parameters.Add("@MyUnitsInStock", SqlDbType.SmallInt).Value = 10;
        mySqlCommand.Parameters.Add("@MyUnitsOnOrder", SqlDbType.SmallInt).Value = 5;
        mySqlCommand.Parameters.Add("@MyReorderLevel", SqlDbType.SmallInt).Value = 5;
        mySqlCommand.Parameters.Add("@MyDiscontinued", SqlDbType.Bit).Value = 1;
        mySqlCommand.ExecuteNonQuery();
        Console.WriteLine("New ProductID = " + mySqlCommand.Parameters["@MyProductID"].Value);
        mySqlConnection.Close();
    }
}

Add parameters to SqlCommand to call stored procedure

Posted on by coder 
   
 

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

class ExecuteAddProduct3 {
    public static void Main() {
        SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa");
        mySqlConnection.Open();
        SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
        mySqlCommand.CommandText =
          "EXECUTE @MyProductID = AddProduct @MyProductName, " +
          "@MySupplierID, @MyCategoryID, @MyQuantityPerUnit, " +
          "@MyUnitPrice, @MyUnitsInStock, @MyUnitsOnOrder, " +
          "@MyReorderLevel, @MyDiscontinued";

        mySqlCommand.Parameters.Add("@MyProductID", SqlDbType.Int);
        mySqlCommand.Parameters["@MyProductID"].Direction = ParameterDirection.Output;
        mySqlCommand.Parameters.Add("@MyProductName", SqlDbType.NVarChar, 40).Value = "Widget";
        mySqlCommand.Parameters.Add("@MySupplierID", SqlDbType.Int).Value = 1;
        mySqlCommand.Parameters.Add("@MyCategoryID", SqlDbType.Int).Value = 1;
        mySqlCommand.Parameters.Add("@MyQuantityPerUnit", SqlDbType.NVarChar, 20).Value = "1 per box";
        mySqlCommand.Parameters.Add("@MyUnitPrice", SqlDbType.Money).Value = 5.99;
        mySqlCommand.Parameters.Add("@MyUnitsInStock", SqlDbType.SmallInt).Value = 10;
        mySqlCommand.Parameters.Add("@MyUnitsOnOrder", SqlDbType.SmallInt).Value = 5;
        mySqlCommand.Parameters.Add("@MyReorderLevel", SqlDbType.SmallInt).Value = 5;
        mySqlCommand.Parameters.Add("@MyDiscontinued", SqlDbType.Bit).Value = 1;

        SqlDataReader mySqlDataReader = mySqlCommand.ExecuteReader();
        while (mySqlDataReader.Read()) {
            Console.WriteLine("mySqlDataReader[" ProductName"] = " + mySqlDataReader["ProductName"]);
            Console.WriteLine("mySqlDataReader[" UnitPrice"] = " + mySqlDataReader["UnitPrice"]);
        }
        mySqlDataReader.Close();
        Console.WriteLine("New ProductID = " + mySqlCommand.Parameters["@MyProductID"].Value);

        mySqlConnection.Close();
    }
}