DAL
Catagoriesdal.cs
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using POS.BLL;
namespace POS.DAL
{
clast Catagoriesdal
{
#region select data from database
public DataTable select()
{
//MEthod to connect Database
connclast c = new connclast();
SqlConnection conn = new SqlConnection(c.connection);
//TO hold the data from database
DataTable dt = new DataTable();
try
{
//SQL Query to Get Data From DAtabase
string query = "select* from tbl_catagories";
//For Executing Command
SqlCommand cmd = new SqlCommand(query, conn);
//Getting DAta from dAtabase
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
//Database Connection Open
conn.Open();
//Fill Data in our DataTable
adapter.Fill(dt);
}
catch (Exception ex)
{
//Throw Message if any error occurs
MessageBox.Show(ex.Message);
}
finally
{
//Closing Connection
conn.Close();
}
//Return the value in DataTable
return dt;
}
#endregion
#region Insert data into database
public bool insert(Catagoriesbll u)
{
//Create a boolean variable and set its value to false and return it
bool issucess = false;
//MEthod to connect Database
connclast c = new connclast();
SqlConnection conn = new SqlConnection(c.connection);
try
{
//SQL Query to insert Data in DAtabase
string query = "Insert into tbl_catagories(catagory,supplier,added_by,added_date)Values(@catagory,@supplier,@added_by,@added_date)";
//For Executing Command
SqlCommand cmd = new SqlCommand(query, conn);
//Pasting Values to the Variables
cmd.Parameters.AddWithValue("@catagory", u.catagory);
cmd.Parameters.AddWithValue("@supplier", u.supplier);
cmd.Parameters.AddWithValue("@added_by", u.added_by);
cmd.Parameters.AddWithValue("@added_date", u.added_date);
//Database Connection Open
conn.Open();
//To execute non query
int row = cmd.ExecuteNonQuery();
//If the query is executed Successfully then the value to rows will be greater than 0 else it will be less than 0
if (row > 0)
{
//Query Sucessfull
issucess = true;
}
else
{
//Query Failed
issucess = false;
}
}
catch (Exception ex)
{
//Throw Message if any error occurs
MessageBox.Show(ex.Message);
}
finally
{
//Closing Connection
conn.Close();
}
return issucess;
}
#endregion
#region Update data in database
public bool update(Catagoriesbll u)
{
//Create a boolean variable and set its value to false and return it
bool issucess = false;
//MEthod to connect Database
connclast c = new connclast();
SqlConnection conn = new SqlConnection(c.connection);
try
{
//SQL Query to update Data in DAtabase
string query = "UPDATE tbl_catagories set [email protected],[email protected],[email protected]_by,[email protected]_date WHERE [email protected]";
//For Executing Command
SqlCommand cmd = new SqlCommand(query, conn);
//Pasting Values to the Variables
cmd.Parameters.AddWithValue("@id", u.id);
cmd.Parameters.AddWithValue("@catagory", u.catagory);
cmd.Parameters.AddWithValue("@supplier", u.supplier);
//Database Connection Open
conn.Open();
//To execute non query
int row = cmd.ExecuteNonQuery();
//If the query is executed Successfully then the value to rows will be greater than 0 else it will be less than 0
if (row > 0)
{
//Query Sucessfull
issucess = true;
}
else
{
//Query Failed
issucess = false;
}
}
catch (Exception ex)
{
//Throw Message if any error occurs
MessageBox.Show(ex.Message);
}
finally
{
//Closing Connection
conn.Close();
}
return issucess;
}
#endregion
#region Delete record in Data Base
public bool delete(Catagoriesbll u)
{
//Create a boolean variable and set its value to false and return it
bool issucess = false;
//MEthod to connect Database
connclast c = new connclast();
SqlConnection conn = new SqlConnection(c.connection);
try
{
//SQL Query to delete Data in DAtabase
string query = "DELETE FROM tbl_catagories WHERE [email protected]";
//For Executing Command
SqlCommand cmd = new SqlCommand(query, conn);
//Pasting Values to the Variables
cmd.Parameters.AddWithValue("@id", u.id);
//Database Connection Open
conn.Open();
//To execute non query
int row = cmd.ExecuteNonQuery();
//If the query is executed Successfully then the value to rows will be greater than 0 else it will be less than 0
if (row > 0)
{
//Query Sucessfull
issucess = true;
}
else
{
//Query Sucessfull
issucess = false;
}
}
catch (Exception ex)
{
//Throw Message if any error occurs
MessageBox.Show(ex.Message);
}
finally
{
//Closing Connection
conn.Close();
}
return issucess;
}
#endregion
#region Search Data From DataBase
public DataTable Search(string keyword)
{
//MEthod to connect Database
connclast c = new connclast();
SqlConnection conn = new SqlConnection(c.connection);
//TO hold the data from database
DataTable dt = new DataTable();
try
{
//SQL Query to search Data from DAtabase
string query = "SELECT* FROM tbl_catagories WHERE id Like '%" + keyword + "%' OR catagory like '%" + keyword + "%' OR supplier like '%" + keyword + "%' OR company like '%" + keyword + "%'";
//For Executing Command
SqlCommand cmd = new SqlCommand(query, conn);
//Getting DAta from dAtabase
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
//Database Connection Open
conn.Open();
//Fill Data in our DataTable
adapter.Fill(dt);
}
catch (Exception ex)
{
//Throw Message if any error occurs
MessageBox.Show(ex.Message);
}
finally
{
//Closing Connection
conn.Close();
}
//Return the value in DataTable
return dt;
}
#endregion
#region If Product exist
public bool exist(Catagoriesbll u)
{
//Create a boolean variable and set its value to false and return it
bool issuccess = false;
//MEthod to connect Database
connclast c = new connclast();
SqlConnection conn = new SqlConnection(c.connection);
try
{
//SQL Query to selecte Data from DAtabase
string query = "select * from tbl_catagories where [email protected] AND [email protected] AND [email protected]";
//For Executing Command
SqlCommand cmd = new SqlCommand(query, conn);
//Pasting Values to the Variables
cmd.Parameters.AddWithValue("@catagory", u.catagory);
cmd.Parameters.AddWithValue("@supplier", u.supplier);
//Getting DAta from dAtabase
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
//TO hold the data from database
DataTable dt = new DataTable();
//Database Connection Open
conn.Open();
//Fill Data in our DataTable
adapter.Fill(dt);
//Checking The rows in DataTable
if (dt.Rows.Count > 0)
{
//Data Exist
issuccess = true;
}
else
{
//Data not exist
issuccess = false;
}
}
catch (Exception ex)
{
//Throw Message if any error occurs
MessageBox.Show(ex.Message);
}
finally
{
//Closing Connection
conn.Close();
}
return issuccess;
}
#endregion
}
}
