using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
namespace book1
{
class book
{
public string booknameclass;
public string nashernameclass;
public string yearclass;
DataAccessLayer dal = new DataAccessLayer();
public DataTable show_all_book()
{
DataTable dt = new DataTable();
string strsql = "select * from tbl_book";
dal.connect();
dt=dal.select(strsql);
return dt;
dal.disconnect();
}
public void add_book()
{
string strsql = "insert into tbl_book(namebook,namenasher,yearbook)values(N'{0} ',N'{1}',N'{2}')";
strsql=string.Format(strsql,this.booknameclass,this.nashernameclass,this.yearclass);
dal.connect();
dal.docommand(strsql);
dal.disconnect();
}
public DataTable searchbyname(string sql)
{
DataTable dt = new DataTable();
string strsql = "select * from tbl_book where namebook like N'%{0}%'";
strsql = string.Format(strsql,sql);
dal.connect();
dt=dal.select(strsql);
dal.disconnect();
return dt;
}
public DataTable searchbynasher(string sql)
{
DataTable dt = new DataTable();
string strsql = "select * from tbl_book where namenasher like N'%{0}%'";
strsql = string.Format(strsql, sql);
dal.connect();
dt = dal.select(strsql);
dal.disconnect();
return dt;
}
public DataTable searchbyyear(string sql)
{
DataTable dt = new DataTable();
string strsql = "select * from tbl_book where yearbook like N'%{0}%'";
strsql = string.Format(strsql, sql);
dal.connect();
dt = dal.select(strsql);
dal.disconnect();
return dt;
}
public DataTable deletebyidshow(int result)
{
string strsql = "delete from tbl_book where id={0}";
strsql = string.Format(strsql,result);
string strsql1 = "select * from tbl_book";
DataTable dt = new DataTable();
dal.connect();
dal.docommand(strsql);
dt =dal.select(strsql1);
dal.disconnect();
return dt;
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Data.Sql;
namespace book1
{
class DataAccessLayer
{
public SqlConnection con;
public SqlCommand cmd;
public SqlDataAdapter da;
public DataAccessLayer()
{
con=new SqlConnection();
cmd=new SqlCommand();
da=new SqlDataAdapter();
cmd.Connection = con;
da.SelectCommand = cmd;
}
public void connect()
{
con.ConnectionString=@"Data Source=.\SQLEXPRESS;AttachDbFilename=|datadirector y|\db_book1.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True";
con.Open();
}
public void disconnect()
{
con.Close();
}
public void docommand(string sql)
{
cmd.CommandText=sql;
cmd.ExecuteNonQuery();
}
public DataTable select(string sql)
{
DataTable dt= new DataTable();
cmd.CommandText = sql;
da.Fill(dt);
return(dt);
}
public int scalercommand(string sql)
{
cmd.CommandText=sql;
int a=(int)cmd.ExecuteScalar();
return a;
}
//internal void select()
//{
// throw new NotImplementedException();
// }
internal void docommand()
{
throw new NotImplementedException();
}
}
}
کد های توی فرم
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace book1
{
public partial class Form1 : Form
{
public int result;
DataAccessLayer dal = new DataAccessLayer();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
book b1 = new book();
dataGridView1.DataSource = b1.show_all_book();
}
private void btn_insert_Click(object sender, EventArgs e)
{
book b2 = new book();
b2.booknameclass = txt_namebook.Text;
b2.nashernameclass = txt_nasher.Text;
b2.yearclass = txt_year.Text;
b2.add_book();
MessageBox.Show("اطلاعات با موفقت در ج شد");
txt_year.Clear();
txt_nasher.Clear();
txt_namebook.Clear();
dataGridView1.DataSource = b2.show_all_book();
}
private void search_namebook_TextChanged(object sender, EventArgs e)
{
book b3=new book();
dataGridView1.DataSource = b3.searchbyname(txt_search_namebook.Text);
}
private void txt_search_nasher_TextChanged(object sender, EventArgs e)
{
book b4 = new book();
dataGridView1.DataSource = b4.searchbynasher(txt_search_nasher.Text);
}
private void txt_search_year_TextChanged(object sender, EventArgs e)
{
book b5 = new book();
dataGridView1.DataSource = b5.searchbyyear(txt_search_year.Text);
}
private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (dataGridView1.CurrentCell.Value.ToString().Trim() == "حذف")
{
book b6 = new book();
DialogResult dr;
dr = MessageBox.Show("آیا از حذف رکورد مورد نظر مطمئن هستید؟", "حذف", MessageBoxButtons.YesNo);
if (dr == DialogResult.Yes)
{
int result=(int)dataGridView1.CurrentRow.Cells["id"].Value;
dataGridView1.DataSource = b6.deletebyidshow(result);
}
}
پاسخ با نقل قول
نوشته شده توسط ahmadkavand
