Leere Zeilen beim Abrufen von Daten aus der Datenbank in DataGridView in C#

Question

Warum bekomme ich leere Zeilen, wenn ich Zeilen von MySQL-Datenbank zu DataGridView abrufen? Ich bekomme am Ende die Anzahl der Zeilen, aber es ist leer (es hat keinen Text).

dies mein Code so weit:

 private void button2_Click(object sender, EventArgs e) 
    { 
     string constring = "Data Source = localhost; port = 3306; username = root; password = 0159"; 
     MySqlConnection conDataBase = new MySqlConnection(constring); 
     MySqlCommand cmdDataBase = new MySqlCommand("Select * FROM TopShineDB.Table1 ;", conDataBase); 
     using (MySqlConnection conn = new MySqlConnection(constring)) 
     { 
      try 
      { 
       MySqlDataAdapter sda = new MySqlDataAdapter(); 
       sda.SelectCommand = cmdDataBase; 
       DataTable dt = new DataTable(); 
       sda.Fill(dt); 

       BindingSource bs = new BindingSource(); 
       bs.DataSource = dt; 
       dataGridView1.DataSource = bs; 
       sda.Update(dt); 
      } 
      catch(Exception ex) 
      { 
       MessageBox.Show(ex.Message); 
      } 
     } 
    } 

Answer 1

ich unter Codebeispiel versucht, Daten aus der Datenbank zu erhalten und binden an Datagridview.

var ConnectionString = "your ConnectionString"; 
MySqlConnection connect = new MySqlConnection(ConnectionString); 
MySqlCommand cmd = new MySqlCommand("your query"); 
connect.Open(); 
MySqlDataAdapter adp = new MySqlDataAdapter(cmd); 
DataSet ds = new DataSet(); 
adp.Fill(ds); 
DataTable dt = new DataTable(); 
dt = DtSet.Tables[0]; 
dataGridView1.DataSource = DtSet.Tables[0]; 
connect.Close(); 

Answer 2

Dieses Versuchen:

private void BindGrid() 
{ 
    string conString = @"Data Source=localhost;port=3306;Initial Catalog=TopShineDB;User Id=root;password=0159"; 
    using (MySqlConnection con = new MySqlConnection(conString)) 
    { 
     using (MySqlCommand cmd = new MySqlCommand("SELECT * FROM Table1", con)) 
     { 
      cmd.CommandType = CommandType.Text; 
      using (MySqlDataAdapter sda = new MySqlDataAdapter(cmd)) 
      { 
       using (DataTable dt = new DataTable()) 
       { 
        sda.Fill(dt); 
        dataGridView1.DataSource = dt; 
       } 
      } 
     } 
    } 
}