Step1:
Welcome to designer blog, Here we are going to discuss about how to connect ADO.net to Sql Server.
Step2:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using System.Data;
using System.Configuration;
namespace DataAccess
{
public class clsSqlServer
{
public DataSet getCustomers()
{
// open a connection
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
// Fire the command object
// Command -- SQL - SQl server
SqlCommand objCommand = new SqlCommand("Select * from Customer", objConnection);
DataSet objDataset = new DataSet();
SqlDataAdapter objAdapter = new SqlDataAdapter(objCommand);
objAdapter.Fill(objDataset);
// Close the connection
objConnection.Close();
return objDataset;
}
public DataSet getCustomers(string CustomerCode)
{
// open a connection
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
// Fire the command object
// Command -- SQL - SQl server
SqlCommand objCommand = new SqlCommand("Select * from Customer where CustomerName='"
+ CustomerCode + "'",
objConnection);
DataSet objDataset = new DataSet();
SqlDataAdapter objAdapter = new SqlDataAdapter(objCommand);
objAdapter.Fill(objDataset);
// Close the connection
objConnection.Close();
return objDataset;
}
public bool InsertCustomer(string strCustomerName,
string Country,
string Gender,
string Hobbies,
bool Status)
{
// Open connection
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
try
{
// Command insert fire
string strInsertCommand = "insert into Customer values('"
+ strCustomerName + "','"
+ Country + "','"
+ Gender + "','"
+ Hobbies + "',"
+ Convert.ToInt16(Status) + ")";
SqlCommand objCommand = new SqlCommand(strInsertCommand, objConnection);
objCommand.ExecuteNonQuery();
// close connection
return true;
}
catch (Exception ex)
{
return false;
}
finally
{
objConnection.Close();
}
}
public bool UpdateCustomer(string strCustomerName,
string Country,
string Gender,
string Hobbies,
bool Status)
{
// Open connection
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
// Command insert fire
string strUpdateCommand = "Update Customer set CustomerName='"
+ strCustomerName + "',Country='"
+ Country + "',Gender='"
+ Gender + "',Hobbies='"
+ Hobbies + "',Married="
+ Convert.ToInt16(Status) + " where CustomerName='" + strCustomerName + "'";
SqlCommand objCommand = new SqlCommand(strUpdateCommand, objConnection);
objCommand.ExecuteNonQuery();
// close connection
objConnection.Close();
return true;
}
public bool DeleteCustomer(string strCustomerName)
{
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
// Fire the command object
// Command -- SQL - SQl server
SqlCommand objCommand = new SqlCommand("delete from Customer where CustomerName='"
+ strCustomerName + "'",
objConnection);
objCommand.ExecuteNonQuery();
objConnection.Close();
return true;
}
}
}
Welcome to designer blog, Here we are going to discuss about how to connect ADO.net to Sql Server.
Step2:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using System.Data;
using System.Configuration;
namespace DataAccess
{
public class clsSqlServer
{
public DataSet getCustomers()
{
// open a connection
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
// Fire the command object
// Command -- SQL - SQl server
SqlCommand objCommand = new SqlCommand("Select * from Customer", objConnection);
DataSet objDataset = new DataSet();
SqlDataAdapter objAdapter = new SqlDataAdapter(objCommand);
objAdapter.Fill(objDataset);
// Close the connection
objConnection.Close();
return objDataset;
}
public DataSet getCustomers(string CustomerCode)
{
// open a connection
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
// Fire the command object
// Command -- SQL - SQl server
SqlCommand objCommand = new SqlCommand("Select * from Customer where CustomerName='"
+ CustomerCode + "'",
objConnection);
DataSet objDataset = new DataSet();
SqlDataAdapter objAdapter = new SqlDataAdapter(objCommand);
objAdapter.Fill(objDataset);
// Close the connection
objConnection.Close();
return objDataset;
}
public bool InsertCustomer(string strCustomerName,
string Country,
string Gender,
string Hobbies,
bool Status)
{
// Open connection
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
try
{
// Command insert fire
string strInsertCommand = "insert into Customer values('"
+ strCustomerName + "','"
+ Country + "','"
+ Gender + "','"
+ Hobbies + "',"
+ Convert.ToInt16(Status) + ")";
SqlCommand objCommand = new SqlCommand(strInsertCommand, objConnection);
objCommand.ExecuteNonQuery();
// close connection
return true;
}
catch (Exception ex)
{
return false;
}
finally
{
objConnection.Close();
}
}
public bool UpdateCustomer(string strCustomerName,
string Country,
string Gender,
string Hobbies,
bool Status)
{
// Open connection
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
// Command insert fire
string strUpdateCommand = "Update Customer set CustomerName='"
+ strCustomerName + "',Country='"
+ Country + "',Gender='"
+ Gender + "',Hobbies='"
+ Hobbies + "',Married="
+ Convert.ToInt16(Status) + " where CustomerName='" + strCustomerName + "'";
SqlCommand objCommand = new SqlCommand(strUpdateCommand, objConnection);
objCommand.ExecuteNonQuery();
// close connection
objConnection.Close();
return true;
}
public bool DeleteCustomer(string strCustomerName)
{
string Connectionstring = ConfigurationManager.ConnectionStrings["DbConn"].ToString();
SqlConnection objConnection = new SqlConnection(Connectionstring);
objConnection.Open();
// Fire the command object
// Command -- SQL - SQl server
SqlCommand objCommand = new SqlCommand("delete from Customer where CustomerName='"
+ strCustomerName + "'",
objConnection);
objCommand.ExecuteNonQuery();
objConnection.Close();
return true;
}
}
}
Step3:
Enjoy Folks
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