C# OleDb Access to DataGridView Update(Save) : ComboBox.Text

string _strConn = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + OpenFilePathName + ";";
using (OleDbConnection _OleConn = new OleDbConnection(_strConn))
{
	_OleConn.Open();

	string _StrCmd = "UPDATE " + comboBox1.Text + " SET GOLD='" + txtGold.Text + "' WHERE ID='" + txtID.Text + "'";
	OleDbCommand _OleCmd = new OleDbCommand(_StrCmd, _OleConn);
	_OleCmd.ExecuteNonQuery();

	if (_OleConn.State == ConnectionState.Open)
	{
		_OleConn.Close();
	}
}