Gets the index of an item.
<p>
The list is searched starting at 0 until an
item is found that is equal to the search item.
If no item is found, -1 is returned. Indexing
is zero based.
@param string the search item
@return the index of the item
@exception SWTException <ul>
<li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
<li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
</ul>
Gets the index of an item. <p> The list is searched starting at 0 until an item is found that is equal to the search item. If no item is found, -1 is returned. Indexing is zero based.
@param string the search item @return the index of the item
@exception SWTException <ul> <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> </ul>