Filtering a dataset using RowFilter of dataview in Csharp

In this blog we will know how to Filter a dataset using dataview RowFilter.

 

App.xml file

 

<?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>

 

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 DataView_RowFilter

{

    public partial class Form1 : Form

    {

        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];

        OleDbCommand com;

        OleDbDataAdapter oledbda;

        DataSet ds;

       

        string str;

        public Form1()

        {

            InitializeComponent();

        }

 

        private void btndisplayall_Click(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");

            dataGridView1.DataSource = ds;

            dataGridView1.DataMember = "student";

            con.Close();

        }

 

        private void btndisplay_Click(object sender, EventArgs e)

        {

            DataTable dt;

            dt = ds.Tables["student"];

            DataView dv = new DataView(dt);

            dv.RowFilter = "sname='" + textBox1.Text + "'";

            dataGridView1.DataSource = dv;

        }

    }

}