private void ContextLine(int line)
{
string html = HttpUtility.HtmlEncode(RightLines[line]);
Result.AppendFormat(@"<tr onclick='window.external.GoTo({0});'>
<td class='diff-marker'> </td>
<td class='diff-context'>", line);
Result.Append(html);
Result.Append(@"</td>
<td class='diff-marker'> </td>
<td class='diff-context'>");
Result.Append(html);
Result.Append(@"</td>
</tr>");
}