private void button1_Click(object sender, EventArgs e)
{
try
{
String uname, pass, dbuname, dbpass;
uname = textBox1.Text;
pass = textBox2.Text;
String str = "Data Source=(localdb)\\Projects;Initial Catalog=Database2;Integrated Security=True;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False";
String sql = "Select username, password from dbo.test where username='******' and password='******'";
SqlConnection conn = new SqlConnection(str);
SqlCommand cmd = new SqlCommand(sql);
conn.Open();
cmd.Connection = conn;
SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{
dbuname = rdr["username"].ToString();
dbpass = rdr["password"].ToString();
if (pass == dbpass)
{
MessageBox.Show("Invalid Username!!!");
}
else
{
LoginForm2 lf2 = new LoginForm2();
lf2.Show();
this.Hide();
}
}
conn.Close();
}
catch (Exception ex) { MessageBox.Show(ex.ToString()); }
}
private void button1_Click(object sender, EventArgs e)
{
Boolean err = false;
if (textBox1.Text == "")
{
MessageBox.Show("Set your User Name");
err = true;
}
else if (textBox2.Text == "")
{
MessageBox.Show("Enter your name");
err = true;
}
else if (textBox4.Text == "")
{
MessageBox.Show("Enter Password");
err = true;
}
else if (textBox4.Text != textBox5.Text)
{
MessageBox.Show("Passwords don't match");
err = true;
}
if (err == false)
{
try
{
String str = "Data Source=(localdb)\\Projects;Initial Catalog=Database2;Integrated Security=True;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False";
String sql = "insert into dbo.test (username, password, name, mobile) values ('" + textBox1.Text + "','" + textBox4.Text + "','" + textBox2.Text + "','" + textBox3.Text + "')";
SqlConnection conn = new SqlConnection(str);
conn.Open();
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.ExecuteNonQuery();
//SqlDataAdapter adapter = new SqlDataAdapter();
//DataSet ds =new DataSet();
//DataRow dr;
//dr = ds.Tables[0].NewRow();
//dr["username"] = textBox1.Text;
//dr["name"] = textBox2.Text;
//dr["mobile"] = textBox3.Text;
//dr["password"] = textBox4.Text;
//ds.Tables[0].Rows.Add(dr);
//SqlCommandBuilder builder;
//builder = new SqlCommandBuilder(adapter);
//adapter = builder.DataAdapter;
//adapter.Update(ds,"UserDetails");
conn.Close();
LoginForm2 lf2 = new LoginForm2();
lf2.Show();
this.Hide();
}
catch (Exception ex) { MessageBox.Show(ex.ToString()); Console.WriteLine(ex.ToString()); }
}
}
