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If the cursor is not yet initialized, MoveNextUnique is identical to
<a href="M_BerkeleyDB_Cursor_MoveFirst.htm">MoveFirst<span class="languageSpecificText"><span class="cs">()</span><span class="cpp">()</span><span class="nu">()</span></span></a>. Otherwise, move the cursor to the next
non-duplicate key in the database, and store that key and associated
datum in <a href="P_BerkeleyDB_Cursor_Current.htm">Current</a>. MoveNextUnique will return false if
no non-duplicate key/data pairs exist after the cursor position in
the database. If either the key or the data is
partial <a href="T_BerkeleyDB_DatabaseEntry.htm">DatabaseEntry</a>, its
<a href="P_BerkeleyDB_DatabaseEntry_PartialLen.htm">PartialLen</a> bytes starting
<a href="P_BerkeleyDB_DatabaseEntry_PartialOffset.htm">PartialOffset</a> bytes from the beginning
of the retrieved data record are returned as if they comprised the
entire record. If any or all of the specified bytes do not exist
in the record, MoveNextUnique is successful, and any existing
bytes are returned.
</div><p />
<b>Namespace:</b>
<a href="N_BerkeleyDB.htm">BerkeleyDB</a><br />
<b>Assembly:</b>
<span sdata="assembly">libdb_dotnet53</span> (in libdb_dotnet53.dll) Version: 5.3.28.0<h1 class="heading"><span onclick="ExpandCollapse(syntaxToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(syntaxToggle, event)" tabindex="0"><img id="syntaxToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Syntax</span></h1><div id="syntaxSection" class="section" name="collapseableSection" style=""><div id="syntaxCodeBlocks" class="code"><span codeLanguage="CSharp"><table><tr><th>C#</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">public</span> <a href="http://msdn2.microsoft.com/en-us/library/a28wyd50" target="_blank">bool</a> <span class="identifier">MoveNextUnique</span>(
<a href="T_BerkeleyDB_DatabaseEntry.htm">DatabaseEntry</a> <span class="parameter">key</span>,
<a href="T_BerkeleyDB_DatabaseEntry.htm">DatabaseEntry</a> <span class="parameter">data</span>
)</pre></td></tr></table></span><span codeLanguage="VisualBasicDeclaration"><table><tr><th>Visual Basic (Declaration)</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">Public</span> <span class="keyword">Function</span> <span class="identifier">MoveNextUnique</span> ( _
<span class="parameter">key</span> <span class="keyword">As</span> <a href="T_BerkeleyDB_DatabaseEntry.htm">DatabaseEntry</a>, _
<span class="parameter">data</span> <span class="keyword">As</span> <a href="T_BerkeleyDB_DatabaseEntry.htm">DatabaseEntry</a> _
) <span class="keyword">As</span> <a href="http://msdn2.microsoft.com/en-us/library/a28wyd50" target="_blank">Boolean</a></pre></td></tr></table></span><span codeLanguage="ManagedCPlusPlus"><table><tr><th>Visual C++</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">public</span>:
<a href="http://msdn2.microsoft.com/en-us/library/a28wyd50" target="_blank">bool</a> <span class="identifier">MoveNextUnique</span>(
<a href="T_BerkeleyDB_DatabaseEntry.htm">DatabaseEntry</a>^ <span class="parameter">key</span>,
<a href="T_BerkeleyDB_DatabaseEntry.htm">DatabaseEntry</a>^ <span class="parameter">data</span>
)</pre></td></tr></table></span></div><div id="parameters"><h4 class="subHeading">Parameters</h4><dl paramName="key"><dt><span class="parameter">key</span></dt><dd>Type: <a href="T_BerkeleyDB_DatabaseEntry.htm">BerkeleyDB<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span></span>DatabaseEntry</a><br />The retrieved key</dd></dl><dl paramName="data"><dt><span class="parameter">data</span></dt><dd>Type: <a href="T_BerkeleyDB_DatabaseEntry.htm">BerkeleyDB<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span></span>DatabaseEntry</a><br />The retrieved data</dd></dl></div><h4 class="subHeading">Return Value</h4>
True if the cursor was positioned successfully, false otherwise.
</div><h1 class="heading"><span onclick="ExpandCollapse(remarksToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(remarksToggle, event)" tabindex="0"><img id="remarksToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Remarks</span></h1><div id="remarksSection" class="section" name="collapseableSection" style="">
<p>
If the database is a Queue or Recno database, MoveNextUnique will
ignore any keys that exist but were never explicitly created by the
application, or those that were created and later deleted.
</p>
<p>
If positioning the cursor fails, <a href="P_BerkeleyDB_Cursor_Current.htm">Current</a> will contain
an empty <a href="http://msdn2.microsoft.com/en-us/library/5tbh8a42" target="_blank">KeyValuePair<span class="languageSpecificText"><span class="cs"><</span><span class="vb">(Of </span><span class="cpp"><</span><span class="nu">(</span></span>TKey, TValue<span class="languageSpecificText"><span class="cs">></span><span class="vb">)</span><span class="cpp">></span><span class="nu">)</span></span></a>.
</p>
</div><h1 class="heading"><span onclick="ExpandCollapse(seeAlsoToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(seeAlsoToggle, event)" tabindex="0"><img id="seeAlsoToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />See Also</span></h1><div id="seeAlsoSection" class="section" name="collapseableSection" style=""><div class="seeAlsoStyle"><a href="T_BerkeleyDB_Cursor.htm">Cursor Class</a></div><div class="seeAlsoStyle"><a href="Overload_BerkeleyDB_Cursor_MoveNextUnique.htm">MoveNextUnique Overload</a></div><div class="seeAlsoStyle"><a href="N_BerkeleyDB.htm">BerkeleyDB Namespace</a></div></div></div><div id="footer"><div class="footerLine"><img width="100%" height="3px" src="../icons/footer.gif" title="Footer image" /></div><A NAME="feedback"></A><span id="fb" class="feedbackcss"> </span>
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