private void EditButton_Click(object sender, RoutedEventArgs e) { Users user = new Users(); using (SqlConnection myConnection = new SqlConnection("datasource=localhost;port=3306;username=root;password")) { string oString = "update users set name='" + UserNameTextBox.Text() + "',password='******'email='" + UserEmailTextBox.Text();; SqlCommand oCmd = new SqlCommand(oString, myConnection); myConnection.Open(); } }