In this blog we will know how to Filter a dataset using
select method in Csharp
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 Filtering_a_dataset_using_select_method_Cs
{
public partial
class Form1
: Form
{
string ConnectionString =
System.Configuration.ConfigurationSettings.AppSettings["dsn"];
OleDbCommand com;
OleDbDataAdapter
oledbda;
DataSet ds;
DataTable dt;
string str;
public Form1()
{
InitializeComponent();
}
private void btnfilterdata_Click(object
sender, EventArgs e)
{
OleDbConnection con
= new OleDbConnection(ConnectionString);
try
{
con.Open();
str = "select *
from student";
com = new OleDbCommand(str, con);
oledbda = new OleDbDataAdapter(com);
ds = new DataSet();
oledbda.Fill(ds, "student");
dt = ds.Tables["student"];
string s1 = null;
string s2 = null;
s1 = "smarks>60";
s2 = "smarks
asc";
DataRow[] result
= null;
result = dt.Select(s1, s2);
int ctr = 0;
for (ctr = 0; ctr
<= (result.Length - 1); ctr++)
{
ListBox1.Items.Add(result[ctr]["smarks"]);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
con.Close();
}
}
}