c# – 如何在XML中编码特殊字符

&
egrave;
&
rsquo;
&
rsquo;
&
rsquo;
&
ldquo;
&
rdquo;
&
rsquo
&
agrave;
&
agrave;

我需要在DB中插入字符串中替换此特殊字符,我尝试使用System.Net.WebUtility.HtmlEncode但没有成功,你能帮助我吗？

string sql = "insert into rss (title,description,link,pubdate) values (?,?," +
             " STR_TO_DATE(?,'%a,%d %b %Y %H:%i:%s GMT'));";

OdbcCommand command;
OdbcDataAdapter adpter = new OdbcDataAdapter();
connection.Open();
command = new OdbcCommand(sql,connection);
command.Parameters.AddWithValue("param1",System.Net.WebUtility.HtmlEncode(xmlTitle.InnerText.ToString()));
command.Parameters.AddWithValue("param2",System.Net.WebUtility.HtmlEncode(xmlDescription.InnerText.ToString()));
command.Parameters.AddWithValue("param3",System.Net.WebUtility.HtmlEncode(xmlLink.InnerText.ToString()));
command.Parameters.AddWithValue("param4",System.Net.WebUtility.HtmlEncode(xmlPubDate.InnerText.ToString()));
adpter.InsertCommand = command;
adpter.InsertCommand.ExecuteNonQuery();
connection.Close();