I have a few issues with the MultiColumn Comb box:
1) If a unique item is selected in the combo box and drop down list is not currently displayed. When the user clicks on down arrow to disiplay the drop drop down list then the length of the displayed list is automatically adjusted to only display one line (the selected row in the drop down list). However if the display width of the drop down is less than the witdth of the table being displayed then a horizontal scroll bar is displayedin the drop down which hides the selected row ( the height of the drop down list is not adjusted for the presence of the horizontal scroll bar).
1a) A related problem with collapsing the height of the drop down list to the selected elements is that if you then use the back arrow to remove text form the text area then the height does not expand again as more entries are displayed in the drop down list (until the list is closed and reopened, or the user drags the list to make it bigger).
2) Filtering (using the RadControls Demos). If filtering is turned on, and you type in the letter 'a' then the combo box's filtering works as expected, however if the letter 'n' is now typed in (after the 'a') the combo box automatically selects the entry "ANATR" - the first match for "AN", preventing the user form being able to select another entry that starts with "AN". The same thing happens if the drop down list is not displayed. If you click on the text box section to the right of the higlighted text 'ANATR' and then use the back arrow 5 times to delete the contents of the text box and then start typing the 'AN' again the problems presists. However while 'ANATR' is dispalyed and highlighted if you click on the highlighted text and type a character the contents of the text box is cleared (the character just typed is not displayed). Now if you start typing again the multiColumn combo box behaves as expected.
1) If a unique item is selected in the combo box and drop down list is not currently displayed. When the user clicks on down arrow to disiplay the drop drop down list then the length of the displayed list is automatically adjusted to only display one line (the selected row in the drop down list). However if the display width of the drop down is less than the witdth of the table being displayed then a horizontal scroll bar is displayedin the drop down which hides the selected row ( the height of the drop down list is not adjusted for the presence of the horizontal scroll bar).
1a) A related problem with collapsing the height of the drop down list to the selected elements is that if you then use the back arrow to remove text form the text area then the height does not expand again as more entries are displayed in the drop down list (until the list is closed and reopened, or the user drags the list to make it bigger).
2) Filtering (using the RadControls Demos). If filtering is turned on, and you type in the letter 'a' then the combo box's filtering works as expected, however if the letter 'n' is now typed in (after the 'a') the combo box automatically selects the entry "ANATR" - the first match for "AN", preventing the user form being able to select another entry that starts with "AN". The same thing happens if the drop down list is not displayed. If you click on the text box section to the right of the higlighted text 'ANATR' and then use the back arrow 5 times to delete the contents of the text box and then start typing the 'AN' again the problems presists. However while 'ANATR' is dispalyed and highlighted if you click on the highlighted text and type a character the contents of the text box is cleared (the character just typed is not displayed). Now if you start typing again the multiColumn combo box behaves as expected.