public bool Modify()
{//
bool b2 = Foundation.RunSql("update otherinfo set itemvalue='" + (this.cbSell2Print.Checked ? "1" : "0") + "' where itemname='Sell2Print'");
OleDbConnection conn = Foundation.CreateInstance();
string strSql = "update otherinfo set itemvalue=@itemvalue where itemname='Notethings'";
OleDbCommand cmd = new OleDbCommand(strSql, conn);
cmd.Parameters.AddWithValue("@itemvalue", this.txtNotethings.Text.Trim());
bool b3 = Foundation.RunSql(@"update otherinfo set itemvalue='" + this.txtBackupDir.Text + "' where itemname='backup'");
return(b3 && b2 && cmd.ExecuteNonQuery() > 0);
}