Hi,

Suppose we have a grid with GUID type column in it. For that column we set the AutoCompleteMode to Suggest and then we set AutoSuggestFilterMode to Contains.

Then we bind a value list to that column.  Value list items contain characters '<' and/or '>' in their text, and their values correspond to the values listed in the column.

So, if we enter cell edit mode and start typing any character, contained in value list items text with '<' or '>' , the application throws an error caused by deserialization issues - looks like it threats '<' or '>' as tag markup.

For example, imagine a value list with three items:

(SOMEGUID1,  'abcd') , (SOMEGUID2, '<fgh') and (SOMEGUID3, 'jkl>')

If you start typing characters a .. d everything will work fine.

Typing f .. h or j .. l or <> will cause an exception.

Setting AutoSuggestFilterMode to StartsWith eliminates that bug.

I attached a small sample application which displays that behavior.