Its ONLY displaying the last value. Not any values i need...

Question

Hello,

 

There is a problem. Its filter only the last record.

Why I could not filter any data I want into a column from my textbox.

 

For example, if my column "A" I have:

Xhiami

Steve

Sami

 

When I insert into my textbox the value Steve Its doesn’t transfert this record. But when I write the last word for example Sami. Its shows. Only showing the last value.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
SqlConnection conn = new SqlConnection("Data Source = (LocalDB)\\MSSQLLocalDB; AttachDbFilename=C:\\Copy_table_to_table\\WindowsFormsApplication1\\test.mdf;Integrated Security = True;Integrated Security = True");
SqlCommand comm;
SqlDataAdapter da;
string connstr = @"Data Source = (LocalDB)\\MSSQLLocalDB; AttachDbFilename=C:\\Copy_table_to_table\\WindowsFormsApplication1\\test.mdf;Integrated Security = True;Integrated Security = True";
private void button1_Click(object sender, EventArgs e)
{
string myConnectionString;
myConnectionString = "Data Source = (LocalDB)\\MSSQLLocalDB; AttachDbFilename = C:\\Copy_table_to_table\\WindowsFormsApplication1\\test.mdf; Integrated Security = True; Integrated Security = True";
{
conn = new SqlConnection("Data Source = (LocalDB)\\MSSQLLocalDB; AttachDbFilename = C:\\Copy_table_to_table\\WindowsFormsApplication1\\test.mdf; Integrated Security = True; Integrated Security = True");
if (conn.State != ConnectionState.Open)
conn.Open();
using (var cmd = new SqlCommand())
{
cmd.Connection = conn;
cmd.CommandType = System.Data.CommandType.Text;
cmd.CommandText = @"INSERT INTO test2 (DATA, A, B, C) SELECT DATA, A, B, C FROM test1 where A ='" + textBox1.Text + "'"; cmd.ExecuteNonQuery(); //On this line
}
}
Console.WriteLine("Done.");
conn.Close();
}
}
}