How to force clear ImgeTile Cache ?

I ran a few tests on the suggested option:
I tried at  5 sec interval:
<dxm:CacheOptions Directory="C://MapTiles" KeepInterval="00:00:05"/>
From what I see the the tiles are not being re cached. I make all the tiles for all levels for the data on the fly (which I save out to my own folder since I have to provide Uri).  I also monitor the map control tile cache folder.  I load the tiles with the data and since the map control tile cache folder dint have them it Caches them. So far so good. I then Modify the the data used by the tile generator and wait for the map control to refresh tiles-- which it looks like it doesn't happen. If I zoom in to map level that wasn't cached the new tiles with modified data are being displayed and cached but on zoom out to a already cached level none of the tiles are being reloaded with the new data and given that the times is set at 5 sec it should have done that even if the map control is not being moved.  I also tried a different folder location for fear not having the user privileges to replace files but I am seeing the same results. I see that my Tile folder is being updated with the new tiles so the tiles are there but the map control seems to think that it has the newest tiles if they are present in the map control tile cache folder

Hi Ivan,

From what I gather, you are using the caching mechanism to supply new tiles by replacing cached tile images directly. The MapControl cache does not have built-in support for this scenario. I suggest that you use the custom tile provider approach instead. This way, you can create a new instance of your data provider to refresh MapControl with new tiles.

I am using a custom tile provider and on  just to make sure that the problem is not with the provider on :
 public override Uri GetTileByZoomLevel(int zoomLevel, int tilePositionX, int tilePositionY)
I make a new file Which I time stamp so I know when it was requested by the map control. My problem is that the map control is caching tiles internally  without having this specified in xaml:
           <dxm:MapControl.CacheOptions>
               <dxm:CacheOptions Directory="C://MapTiles" KeepInterval="00:00:05"/>
           </dxm:MapControl.CacheOptions>
and with this definition the tiles are not refreshed after the keep interval. I see that there are no new requests for existing tiles to the tile provider form the map control after 5 sec since there are no new files generated with new time stamps for displayed tiles or when you zoom out (to previously fetched tiles).

Ivan,

Tiles will be reloaded only when MapControl requests tile images and the KeepInterval period expired. MapControl does not automatically reload visible tiles after a particular KeepInterval period is lapsed.

Ok, so for the currently showed tiles I have no option of reloading them. But by that statement on zoom out  the control should request new tiles but  it doesn't. I understand that there is some scaling animation involved at the transition between zoom levels, but it still should actually request the tiles and not use the old one after the animation is finished since they have clearly expired based on the KeepInterval.