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<h1>Updating List Objects</h1><script>
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<p>As we discussed <a href="../collections_update_depth.html" class="wikiLink">before</a>
updating list members using update depth is quite inefficient. An alternative
approach can be retrieving and updating each object from the list separately:</p>
<span name="cs_wiki_filter" csw_filters="cs">
<div class="FormattedSourceCode"><div class="fscHeader"><span class="fscFileName">ListOperationsExample.cs: <span class="fscMemberName">UpdateObject</span></span></div><div class="fscCode"><pre ID="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75"><div><!--
Code highlighting produced by Actipro CodeHighlighter (freeware)
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--><span style="color: #008080;">01</span><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/None.gif" align="top"/><span style="color: #0000FF;">private</span><span style="color: #000000;"> </span><span style="color: #0000FF;">static</span><span style="color: #000000;"> </span><span style="color: #0000FF;">void</span><span style="color: #000000;"> UpdateObject()
</span><span style="color: #008080;">02</span><span style="color: #000000;"><img id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Open_Text').style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Closed_Image').style.display='inline'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Closed_Text').style.display='inline';"/><img id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Closed_Text').style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Open_Image').style.display='inline'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Open_Text').style.display='inline';"/> </span><span id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_43_1134_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">03</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> Stopwatch sw </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #0000FF;">new</span><span style="color: #000000;"> Stopwatch();
</span><span style="color: #008080;">04</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/>
</span><span style="color: #008080;">05</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> IObjectContainer db </span><span style="color: #000000;">=</span><span style="color: #000000;"> Db4oFactory.OpenFile(DbFile);
</span><span style="color: #008080;">06</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">try</span><span style="color: #000000;">
</span><span style="color: #008080;">07</span><span style="color: #000000;"><img id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Open_Text').style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Closed_Image').style.display='inline'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Closed_Text').style.display='inline';"/><img id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedSubBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Closed_Text').style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Open_Image').style.display='inline'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Open_Text').style.display='inline';"/> </span><span id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_182_974_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">08</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #008000;">//</span><span style="color: #008000;"> we can set update depth to 0
</span><span style="color: #008080;">09</span><span style="color: #008000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #008000;">//</span><span style="color: #008000;"> as we update only the current object</span><span style="color: #008000;">
</span><span style="color: #008080;">10</span><span style="color: #008000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/></span><span style="color: #000000;"> db.Ext().Configure().UpdateDepth(</span><span style="color: #800080;">0</span><span style="color: #000000;">);
</span><span style="color: #008080;">11</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> IList</span><span style="color: #000000;"><</span><span style="color: #000000;">ListObject</span><span style="color: #000000;">></span><span style="color: #000000;"> result </span><span style="color: #000000;">=</span><span style="color: #000000;"> db.Query</span><span style="color: #000000;"><</span><span style="color: #000000;">ListObject</span><span style="color: #000000;">></span><span style="color: #000000;">();
</span><span style="color: #008080;">12</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">if</span><span style="color: #000000;"> (result.Count </span><span style="color: #000000;">==</span><span style="color: #000000;"> </span><span style="color: #800080;">2</span><span style="color: #000000;">)
</span><span style="color: #008080;">13</span><span style="color: #000000;"><img id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Open_Text').style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Closed_Image').style.display='inline'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Closed_Text').style.display='inline';"/><img id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedSubBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Closed_Text').style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Open_Image').style.display='inline'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Open_Text').style.display='inline';"/> </span><span id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_464_960_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">14</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> ListObject lo1 </span><span style="color: #000000;">=</span><span style="color: #000000;"> result[</span><span style="color: #800080;">0</span><span style="color: #000000;">];
</span><span style="color: #008080;">15</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> DataObject dataobject </span><span style="color: #000000;">=</span><span style="color: #000000;"> lo1.Data[</span><span style="color: #800080;">0</span><span style="color: #000000;">];
</span><span style="color: #008080;">16</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> dataobject.Name </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;">Updated</span><span style="color: #800000;">"</span><span style="color: #000000;">;
</span><span style="color: #008080;">17</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> dataobject.Data </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.Now.ToString() </span><span style="color: #000000;">+</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> ---- Updated Object </span><span style="color: #800000;">"</span><span style="color: #000000;">;
</span><span style="color: #008080;">18</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/>
</span><span style="color: #008080;">19</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Updated list {0} dataobject {1}</span><span style="color: #800000;">"</span><span style="color: #000000;">, lo1.Name, lo1.Data[</span><span style="color: #800080;">0</span><span style="color: #000000;">]);
</span><span style="color: #008080;">20</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> sw.Start();
</span><span style="color: #008080;">21</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Set(dataobject);
</span><span style="color: #008080;">22</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Commit();
</span><span style="color: #008080;">23</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> sw.Stop();
</span><span style="color: #008080;">24</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"/> }</span></span><span style="color: #000000;">
</span><span style="color: #008080;">25</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"/> }</span></span><span style="color: #000000;">
</span><span style="color: #008080;">26</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">finally</span><span style="color: #000000;">
</span><span style="color: #008080;">27</span><span style="color: #000000;"><img id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Open_Text').style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Closed_Image').style.display='inline'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Closed_Text').style.display='inline';"/><img id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedSubBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Closed_Text').style.display='none'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Open_Image').style.display='inline'; document.getElementById('..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Open_Text').style.display='inline';"/> </span><span id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="..ListOperationsCS.ZipsListOperationsExample.Cs_ListOperationsExample.Cs_UpdateObject_283_75_1007_1050_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">28</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Close();
</span><span style="color: #008080;">29</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"/> }</span></span><span style="color: #000000;">
</span><span style="color: #008080;">30</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Storing took {0}</span><span style="color: #800000;">"</span><span style="color: #000000;">, sw.Elapsed.ToString());
</span><span style="color: #008080;">31</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockEnd.gif" align="top"/> }</span></span></div></pre></div></div>
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<span name="cs_wiki_filter" csw_filters="vb">
<div class="FormattedSourceCode"><div class="fscHeader"><span class="fscFileName">ListOperationsExample.vb: <span class="fscMemberName">UpdateObject</span></span></div><div class="fscCode"><pre ID="..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75"><div><!--
Code highlighting produced by Actipro CodeHighlighter (freeware)
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--><span style="color: #008080;">01</span><img id="..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Open_Text').style.display='none'; document.getElementById('..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Closed_Image').style.display='inline'; document.getElementById('..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Closed_Text').style.display='inline';"/><img id="..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Closed_Text').style.display='none'; document.getElementById('..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Open_Image').style.display='inline'; document.getElementById('..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Open_Text').style.display='inline';"/><span style="color: #0000FF;">Private</span><span style="color: #000000;"> </span><span style="color: #0000FF;">Shared</span><span style="color: #000000;"> </span><span id="..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">Sub UpdateObject()</span><span id="..ListOperationsVB.ZipsListOperationsExample.Vb_ListOperationsExample.Vb_UpdateObject_422_75_15_1094_Open_Text"><span style="color: #0000FF;">Sub</span><span style="color: #000000;"> UpdateObject()
</span><span style="color: #008080;">02</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> sw </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> Stopwatch </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #0000FF;">New</span><span style="color: #000000;"> Stopwatch
</span><span style="color: #008080;">03</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> db </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> IObjectContainer </span><span style="color: #000000;">=</span><span style="color: #000000;"> Db4oFactory.OpenFile(DbFile)
</span><span style="color: #008080;">04</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Try</span><span style="color: #000000;">
</span><span style="color: #008080;">05</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #008000;">'</span><span style="color: #008000;"> we can set update depth to 0 </span><span style="color: #008000;">
</span><span style="color: #008080;">06</span><span style="color: #008000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/></span><span style="color: #000000;"> </span><span style="color: #008000;">'</span><span style="color: #008000;"> as we update only the current object</span><span style="color: #008000;">
</span><span style="color: #008080;">07</span><span style="color: #008000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/></span><span style="color: #000000;"> db.Ext.Configure.UpdateDepth(</span><span style="color: #800080;">0</span><span style="color: #000000;">)
</span><span style="color: #008080;">08</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> result </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> IList(</span><span style="color: #0000FF;">Of</span><span style="color: #000000;"> ListObject) </span><span style="color: #000000;">=</span><span style="color: #000000;"> db.Query(</span><span style="color: #0000FF;">Of</span><span style="color: #000000;"> ListObject)()
</span><span style="color: #008080;">09</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">If</span><span style="color: #000000;"> result.Count </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800080;">2</span><span style="color: #000000;"> </span><span style="color: #0000FF;">Then</span><span style="color: #000000;">
</span><span style="color: #008080;">10</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> lo1 </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> ListObject </span><span style="color: #000000;">=</span><span style="color: #000000;"> result(</span><span style="color: #800080;">0</span><span style="color: #000000;">)
</span><span style="color: #008080;">11</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> dataobject </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> DataObject </span><span style="color: #000000;">=</span><span style="color: #000000;"> lo1.Data(</span><span style="color: #800080;">0</span><span style="color: #000000;">)
</span><span style="color: #008080;">12</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> dataobject.Name </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;">Updated</span><span style="color: #800000;">"</span><span style="color: #000000;">
</span><span style="color: #008080;">13</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> dataobject.Data </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.Now.ToString </span><span style="color: #000000;">+</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> ---- Updated Object </span><span style="color: #800000;">"</span><span style="color: #000000;">
</span><span style="color: #008080;">14</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Updated list {0} dataobject {1}</span><span style="color: #800000;">"</span><span style="color: #000000;">, lo1.Name, lo1.Data(</span><span style="color: #800080;">0</span><span style="color: #000000;">))
</span><span style="color: #008080;">15</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> sw.Start()
</span><span style="color: #008080;">16</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Set(dataobject)
</span><span style="color: #008080;">17</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Commit()
</span><span style="color: #008080;">18</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> sw.Stop()
</span><span style="color: #008080;">19</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">End</span><span style="color: #000000;"> </span><span style="color: #0000FF;">If</span><span style="color: #000000;">
</span><span style="color: #008080;">20</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Finally</span><span style="color: #000000;">
</span><span style="color: #008080;">21</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Close()
</span><span style="color: #008080;">22</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">End</span><span style="color: #000000;"> </span><span style="color: #0000FF;">Try</span><span style="color: #000000;">
</span><span style="color: #008080;">23</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Storing took {0}</span><span style="color: #800000;">"</span><span style="color: #000000;">, sw.Elapsed.ToString)
</span><span style="color: #008080;">24</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockEnd.gif" align="top"/> </span><span style="color: #0000FF;">End Sub</span></span></div></pre></div></div>
</span>
In this case only the object of interest is updated,
which takes much less time than updating the whole list.
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This revision (4) was last Modified 2007-06-15T15:55:34 by Tetyana.
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