span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span></span>ForeignKeyDeleteAction</a><br />
            The action taken when a reference record is deleted.
            </dd></dl><dl paramName="NullifyFunc"><dt><span class="parameter">NullifyFunc</span></dt><dd>Type: <a href="T_BerkeleyDB_ForeignKeyNullifyDelegate.htm">BerkeleyDB<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span></span>ForeignKeyNul