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<html xmlns:MSHelp="http://msdn.microsoft.com/mshelp" xmlns:mshelp="http://msdn.microsoft.com/mshelp" xmlns:ddue="http://ddue.schemas.microsoft.com/authoring/2003/5" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:msxsl="urn:schemas-microsoft-com:xslt"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8" /><META NAME="save" CONTENT="history" /><title>MoveFirst Method (DatabaseEntry, DatabaseEntry, DatabaseEntry)</title><link rel="stylesheet" type="text/css" href="../styles/presentation.css" /><link rel="stylesheet" type="text/css" href="ms-help://Hx/HxRuntime/HxLink.css" /><script type="text/javascript" src="../scripts/EventUtilities.js"> </script><script type="text/javascript" src="../scripts/SplitScreen.js"> </script><script type="text/javascript" src="../scripts/Dropdown.js"> </script><script type="text/javascript" src="../scripts/script_manifold.js"> </script><script type="text/javascript" src="../scripts/script_feedBack.js"> </script><script type="text/javascript" src="../scripts/CheckboxMenu.js"> </script><script type="text/javascript" src="../scripts/CommonUtilities.js"> </script><meta name="container" content="BerkeleyDB" /><meta name="file" content="M_BerkeleyDB_SecondaryCursor_MoveFirst_1" /><meta name="guid" content="M_BerkeleyDB_SecondaryCursor_MoveFirst_1" /><xml><MSHelp:Attr Name="AssetID" Value="M:BerkeleyDB.SecondaryCursor.MoveFirst(BerkeleyDB.DatabaseEntry,BerkeleyDB.DatabaseEntry,BerkeleyDB.DatabaseEntry)" /><MSHelp:TOCTitle Title="MoveFirst Method (DatabaseEntry, DatabaseEntry, DatabaseEntry)" /><MSHelp:RLTitle Title="SecondaryCursor.MoveFirst Method (DatabaseEntry, DatabaseEntry, DatabaseEntry) (BerkeleyDB)" /><MSHelp:Keyword Index="A" Term="M:BerkeleyDB.SecondaryCursor.MoveFirst(BerkeleyDB.DatabaseEntry,BerkeleyDB.DatabaseEntry,BerkeleyDB.DatabaseEntry)" /><MSHelp:Attr Name="APIType" Value="Managed" /><MSHelp:Attr Name="APILocation" Value="libdb_dotnet53.dll" /><MSHelp:Attr Name="APIName" Value="BerkeleyDB.SecondaryCursor.MoveFirst" /><MSHelp:Attr Name="DevLang" Value="CSharp" /><MSHelp:Attr Name="DevLang" Value="VB" /><MSHelp:Attr Name="DevLang" Value="C++" /><MSHelp:Attr Name="Locale" Value="en-us" /><MSHelp:Attr Name="TopicType" Value="kbSyntax" /><MSHelp:Attr Name="TopicType" Value="apiref" /><MSHelp:Attr Name="Abstract" Value="Set the cursor to refer to the first key/data pair of the database, and store the secondary key along with the corresponding primary key/data pair in . 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Set the cursor to refer to the first key/data pair of the database,
and store the secondary key along with the corresponding primary
key/data pair in <a href="P_BerkeleyDB_SecondaryCursor_Current.htm">Current</a>. If the first key has
duplicate values, the first data item in the set of duplicates is
stored in <a href="P_BerkeleyDB_SecondaryCursor_Current.htm">Current</a>. If <span class="parameter">key</span>, or
<span class="parameter">pkey</span>, or <span class="parameter">data</span> 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, MoveFirst 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">MoveFirst</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">pkey</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">MoveFirst</span> ( _
<span class="parameter">key</span> <span class="keyword">As</span> <a href="T_BerkeleyDB_DatabaseEntry.htm">DatabaseEntry</a>, _
<span class="parameter">pkey</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">MoveFirst</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">pkey</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 in secondary db</dd></dl><dl paramName="pkey"><dt><span class="parameter">pkey</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 in primary db</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 in primary db</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="">
If positioning the cursor fails, <a href="P_BerkeleyDB_SecondaryCursor_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>.
</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_SecondaryCursor.htm">SecondaryCursor Class</a></div><div class="seeAlsoStyle"><a href="Overload_BerkeleyDB_SecondaryCursor_MoveFirst.htm">MoveFirst 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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