Combobox- Veritabanı Örneği için tıklayınız.
Combobox
Tablo
Program Kodları:
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 listbox_ornegi
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
SqlConnection conn = new SqlConnection(“Data Source=.\\SQLEXPRESS; Initial Catalog=adres_defteri; Integrated Security=true;”);
private void Form2_Load(object sender, EventArgs e)
{
if (conn.State == ConnectionState.Closed)
conn.Open();
string sorgu = “select * from kisiler”;
SqlDataAdapter adp = new SqlDataAdapter(sorgu, conn);
DataSet ds = new DataSet();
adp.Fill(ds);
for (int i = 0; i <= ds.Tables[0].Rows.Count – 1; i++)
{
comboBox1.Items.Add(ds.Tables[0].Rows[i][0].ToString());
}
}
int secilen;
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
secilen = Convert.ToInt32(comboBox1.Text);
if (conn.State == ConnectionState.Closed)
conn.Open();
string sorgu = “select * from kisiler where id=” + secilen + “”;
SqlDataAdapter adp = new SqlDataAdapter(sorgu, conn);
DataSet ds = new DataSet();
adp.Fill(ds);
textBox1.Text = ds.Tables[0].Rows[0][1].ToString();
textBox2.Text = ds.Tables[0].Rows[0][2].ToString();
textBox3.Text = ds.Tables[0].Rows[0][5].ToString();
textBox4.Text = ds.Tables[0].Rows[0][3].ToString();
textBox5.Text = ds.Tables[0].Rows[0][4].ToString();
}
private void button1_Click(object sender, EventArgs e)
{
}
}
}
Tablo#
