错误自动滚动＆＃39;最小＆＃39;和＆＃39;最大＆＃39; c #datagridview winform

Question

        try
        {
            string MyConnectionsss = "datasource=localhost;port=3306;Initial Catalog = 'svms';username=svms;password=svms2016CPU";
            string Query = "select * from userinformation";
            MySqlConnection MyConn2sss = new MySqlConnection(MyConnectionsss);
            MySqlCommand MyCommand2 = new MySqlCommand(Query, MyConn2sss);
            MySqlDataAdapter MyAdapter = new MySqlDataAdapter();
            MyAdapter.SelectCommand = MyCommand2;
            DataTable dTable = new DataTable();
            MyAdapter.Fill(dTable);
            metroGrid1.DataSource = dTable;
            metroGrid1.PerformLayout();
            metroGrid1.Columns["UserPassword"].Visible = false;     
        }
        catch (Exception ex)
        {
            MetroMessageBox.Show(this, ex.Message, "MySQL says:", MessageBoxButtons.OK, MessageBoxIcon.Warning);
        }

如果我输入此代码＆＃34; metroGrid1.Columns [＆＃34; UserPassword＆＃34;]，则会显示错误.Visible = false;＆＃34;我已经尝试过metroGrid1.PerformLayout（）;在滚动事件。仍然不起作用。希望有人能请求帮助。谢谢！