>Image BaseClass have't refresh method.
>You can use the Columnrefresh, but don't forget NODEFAULT
>

>THIS.NewColumn.dynamicFontShadow = "This.NewColumn.Refresh()"
>** Col refresh
>NODEFAULT
>this.myPicture.picture = MyTable.MyPictureFileWithPath
>

There was still some flickering. Also my Size column was displayed wrongly after sorting (looked like multiple records selected). Perhaps it was related with the fact, that I set sparse property to .f. I changed it back to true and removed spaces at the end.