Insert update delete navigate datagridview

Satyapriyanayak
Posted by Satyapriyanayak under C# category on | Points: 40 | Views : 1938
App.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="dsn" value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=..\EMP.mdb" />
</appSettings>
</configuration>



Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace Insert_update_delete_navigate
{
public partial class Form1 : Form
{
string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];
OleDbCommand com;
OleDbDataAdapter oledbda;
string str;
DataSet ds;
byte flag;
BindingManagerBase bm;

public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
OleDbConnection con = new OleDbConnection(ConnectionString);
con.Open();
str = "select * from student";
com = new OleDbCommand(str, con);
oledbda = new OleDbDataAdapter(com);
ds = new DataSet();
oledbda.Fill(ds, "student");
textBox1.DataBindings.Add("Text", ds, "student.id");
textBox2.DataBindings.Add("Text", ds, "student.name");
bm = this.BindingContext[ds, "student"];
con.Close();
bindgrid();
}

private void bindgrid()
{
OleDbConnection con = new OleDbConnection(ConnectionString);
con.Open();
str = "select * from student";
com = new OleDbCommand(str, con);
oledbda = new OleDbDataAdapter(com);
ds = new DataSet();
oledbda.Fill(ds, "student");
dataGridView1.DataMember = "student";
dataGridView1.DataSource = ds;
con.Close();

}

private void btn_first_Click(object sender, EventArgs e)
{
bm.Position = 0;
}

private void btn_next_Click(object sender, EventArgs e)
{
bm.Position += 1;
}

private void btn_previous_Click(object sender, EventArgs e)
{
bm.Position -= 1;
}

private void btn_last_Click(object sender, EventArgs e)
{
bm.Position = bm.Count - 1;
}

private void btn_add_Click(object sender, EventArgs e)
{
textBox1.Text = "";
textBox2.Text = "";
textBox1.Focus();
flag = 1;
}

private void btn_modify_Click(object sender, EventArgs e)
{
flag = 2;
}

private void btn_save_Click(object sender, EventArgs e)
{
if (flag == 1)
{
OleDbConnection con = new OleDbConnection(ConnectionString);
con.Open();
str = "insert into student(id,name) values (@id,@name)";
com = new OleDbCommand(str, con);
com.Parameters.AddWithValue("@sid", textBox1.Text);
com.Parameters.AddWithValue("@sname", textBox2.Text);
com.ExecuteNonQuery();
con.Close();
MessageBox.Show("Records Successfuly Inserted");
bindgrid();
}

if (flag == 2)
{
OleDbConnection con = new OleDbConnection(ConnectionString);
con.Open();
str = "update student set name='" + textBox2.Text.Trim() + "' where id='" + textBox1.Text.Trim() + "'";
com = new OleDbCommand(str, con);
com.ExecuteNonQuery();
con.Close();
MessageBox.Show("Records Successfuly Updated");
bindgrid();
}
}

private void btn_delete_Click(object sender, EventArgs e)
{

DialogResult result;
result = MessageBox.Show("Are You sure want to Delete?", "Conformation", MessageBoxButtons.YesNo);
if (result == System.Windows.Forms.DialogResult.Yes)
{
OleDbConnection con = new OleDbConnection(ConnectionString);
str = "delete from student where id=@id";
com = new OleDbCommand(str, con);
com.Parameters.AddWithValue("@id", textBox1.Text);
con.Open();
com.ExecuteNonQuery();
con.Close();
MessageBox.Show("Records Successfuly Deleted");
bindgrid();

}
else
{
MessageBox.Show("No action");
}

}
}
}

Comments or Responses

Login to post response