title: Updating mysql database cause a error
body: <p>I was trying to update my mysql database but it didn't work and showed me error. </p>
  
  <p>The code :</p>
  
  <pre><code>string constring = "datasource=localhost;port=3306;username=root;password=root";
  string Query = "update  database.check set  namethestore = '" + this.textBox65.Text + "' , checkername= '" + this.textBox66.Text + "' ,  where namethestore = '" + this.textBox65.Text + "'  ;";
  MySqlConnection conDataBase = new MySqlConnection(constring);
  MySqlCommand cmdDataBase = new MySqlCommand(Query, conDataBase);
  MySqlDataReader myReader;
  try
  {
     conDataBase.Open();
     myReader = cmdDataBase.ExecuteReader();
     MessageBox.Show("saved");
  
     while (myReader.Read())
     {
     }
  </code></pre>