Today, in this article, I will show you how to search a record in the database and then filter it into the datagridview.
Variables
In this program, we will use these variables.
SqlConnection sqlconnection;
SqlCommand sqlcommand;
string ConnectionString = @"Data Source=(LocalDB)\v11.0;AttachDbFilename=C:\Users\Ehtesham Mehmood\Documents\Database1.mdf;Integrated Security=True;Connect Timeout=30";
string Query;
DataSet dataset;
DataTable datatable;
SqlDataAdapter sqladapter;
Diagram
Program
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace FilterValuesDataGridviewThrougTextBox
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
//global variables
SqlConnection sqlconnection;
SqlCommand sqlcommand;
string ConnectionString = @"Data Source=(LocalDB)\v11.0;AttachDbFilename=C:\Users\Ehtesham Mehmood\Documents\Database1.mdf;Integrated Security=True;Connect Timeout=30";
string Query;
DataSet dataset;
DataTable datatable;
SqlDataAdapter sqladapter;
//This is the form load event
private void Form1_Load(object sender, EventArgs e)
{
//form load event here data will show in the data gridview
sqlconnection=new SqlConnection(ConnectionString);
Query = "select * from Student";
sqlcommand=new SqlCommand(Query,sqlconnection);
sqladapter=new SqlDataAdapter();
datatable = new DataTable();
sqladapter.SelectCommand=sqlcommand;
sqladapter.Fill(datatable);
dataGridView1.DataSource = datatable;
}
//This is the textchanged event
private void textBox1_TextChanged(object sender, EventArgs e)
{
//textchanged event of texbox when user enter a word in the textbox then through this dataview object string format it will filter and attached the filter result in to the datagridview
DataView DV = new DataView(datatable);
DV.RowFilter = string.Format("Name LIKE '%{0}%'", textBox1.Text);
dataGridView1.DataSource = DV;
}
}
}
I have also attached the source code so you people can download it.