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org.symbian.tools.wrttools.doc.WebDeveloper/html/GUID-37C9E5F0-BEA9-4E0B-A40D-B953B3551007.html
author tasneems@symbian.org
Fri, 05 Mar 2010 19:11:15 -0800
changeset 229 716254ccbcc0
permissions -rw-r--r--
Fixed 2046: WRTKit help topics. Fixed 2170: Added support for Web Developer Library. Fixed 1952: Event Trigger icons unreadable


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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><meta name="copyright" content="(C) Copyright 2009"/><meta name="DC.rights.owner" content="(C) Copyright 2009"/><meta name="DC.Type" content="mobileconcept"/><meta name="DC.Title" content="IDataSource.GetList()"/><meta name="DC.Relation" scheme="URI" content="GUID-20D66938-A870-43D7-9515-AC7E22AEDC14"/><meta name="DC.Relation" scheme="URI" content="GUID-7C69DDA4-16F1-4A8F-BDB2-4CB0015B4E81"/><meta name="DC.Relation" scheme="URI" content="GUID-65AAF569-D347-462B-B59A-9D7CA184AB9C"/><meta name="DC.Relation" scheme="URI" content="GUID-A5853293-7B83-4CCE-9C29-B2B8F0CD8A18"/><meta name="DC.Format" content="XHTML"/><meta name="DC.Identifier" content="GUID-37C9E5F0-BEA9-4E0B-A40D-B953B3551007"/><title>IDataSource.GetList() </title><script type="text/javascript">
      function initPage() {}
    </script><link href="../PRODUCT_PLUGIN/book.css" rel="stylesheet" type="text/css"/><link href="css/s60/style.css" rel="stylesheet" type="text/css" media="all"/></head><body onload="initPage();"><div class="body"><div class="contentLeft prTxt"><h1 class="pageHeading" id="GUID-37C9E5F0-BEA9-4E0B-A40D-B953B3551007"><span>IDataSource.</span>GetList()</h1><div>
<p><strong>Description:</strong></p>
<p>The <code>GetList</code> method retrieves a list of contacts,
contact groups, or contacts databases. Contacts and contact groups are retrieved
from the specified contacts database or, if no database is specified, from
the default one.</p>
<p>This method can be called both synchronously and asynchronously.</p>
<div class="note"><p><strong class="note_title">Note: </strong>Calls that retrieve a list of databases must always be synchronous.</p>
</div>
<p><strong>Syntax:</strong></p>
<p>For synchronous calls:</p>
<pre class="codeblock" id="GUID-5017A498-4BF1-48C1-B6AD-44DB3DC7436E">result = so.IDataSource.GetList(criteria);</pre>

<p>For asynchronous calls:</p>
<pre class="codeblock" id="GUID-22320C1F-DC1F-4D35-BDFE-25E12DA64321">result = so.IDataSource.GetList(criteria, callback);</pre>

<p><strong>Arguments:</strong></p>
<ul>
<li><p><code>criteria</code>:</p>

<p>This is an object that specifies what contact information is returned
and how the returned information is sorted. For more information about the
object properties and how to define them, see section <a href="GUID-06C803FE-DD16-44B5-B9C7-2EC9D497D425.html#GUID-06C803FE-DD16-44B5-B9C7-2EC9D497D425">Criteria for retrieving contact information</a>.</p>

</li>
<li><p><code>callback</code>:</p>

<p>The <code>callback</code> argument is the name of the method
that is executed when an asynchronous <code>GetList</code> call has
results or status information to return. You must define this method separately.
Follow the instructions in section <a href="GUID-C7C3B541-8D28-4DC6-9003-ECF57F26C608.html#GUID-C7C3B541-8D28-4DC6-9003-ECF57F26C608">Defining the callback handler for an asynchronous method</a> to
define the <code>callback</code> method.</p>
<p>This argument is used only with an asynchronous <code>GetList</code> call.</p>

</li>
</ul>
<p><strong>Return value:</strong></p>
<p>If synchronous, the <code>GetList</code> method returns an object
that contains the requested contact information, an error code, and an error
message.</p>
<div class="tablenoborder"><a name="GUID-B0319288-FE3F-4579-A39F-2ADFC2A36C4E"><!----></a><table cellpadding="4" cellspacing="0" summary="" id="GUID-B0319288-FE3F-4579-A39F-2ADFC2A36C4E" frame="border" border="1" rules="all"><caption><strong>Table: </strong>Return value
properties for a synchronous GetList</caption>
<thead align="left">
<tr class="title "><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e30554">
<p>Property</p>
</th><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e30559">
<p>Description</p>
</th><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e30564">
<p>Value</p>
</th></tr>
</thead>
<tbody>
<tr class="">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30554 ">
<p><code>result.ReturnValue</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30559 ">
<p>This is an iterator that contains the requested contact information.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30564 ">
<p>See <a href="GUID-CD495D49-E492-4E88-833D-29EF222B097F.html#GUID-CD495D49-E492-4E88-833D-29EF222B097F">Returned contact information</a>.</p>
</td>
</tr>
<tr class="bg ">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30554 ">
<p><code>result.ErrorCode</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30559 ">
<p>This is a number that specifies a predefined error code.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30564 ">
<p>See <a href="GUID-0A215AF3-59F0-4158-842C-0D7B030E5EA4.html#GUID-0A215AF3-59F0-4158-842C-0D7B030E5EA4">Service API error codes</a>.</p>
</td>
</tr>
<tr class="">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30554 ">
<p><code>result.ErrorMessage</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30559 ">
<p>This is a text string that describes the error.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30564 ">
<p>See <a href="GUID-8722B5DB-5EA6-446D-8C1D-7A0B3D8781EF.html#GUID-8722B5DB-5EA6-446D-8C1D-7A0B3D8781EF">Contacts Service API error messages</a>.</p>
</td>
</tr>
</tbody>
</table></div>
<p>If asynchronous, the <code>GetList</code> method returns an
object that contains the initial return value for the asynchronous call it
started (see the following table). The actual contact information is returned
by the <a href="GUID-C7C3B541-8D28-4DC6-9003-ECF57F26C608.html#GUID-C7C3B541-8D28-4DC6-9003-ECF57F26C608"><code>callback</code></a> method
in the <code>ReturnValue</code> property of its result object. The
returned information is described in section <a href="GUID-CD495D49-E492-4E88-833D-29EF222B097F.html#GUID-CD495D49-E492-4E88-833D-29EF222B097F">Returned contact information</a>.</p>
<div class="tablenoborder"><a name="GUID-95A1D66E-A3B6-476B-82B5-A555714CE48D"><!----></a><table cellpadding="4" cellspacing="0" summary="" id="GUID-95A1D66E-A3B6-476B-82B5-A555714CE48D" frame="border" border="1" rules="all"><caption><strong>Table: </strong>Return value
properties for an asynchronous GetList</caption>

<thead align="left">
<tr class="title "><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e30676">
<p>Property</p>
</th><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e30681">
<p>Description</p>
</th><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e30686">
<p>Value</p>
</th></tr>
</thead>
<tbody>
<tr class="">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30676 ">
<p><code>result.TransactionID</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30681 ">
<p>This is a number used as an identification to match transactions started
with the asynchronous <code>GetList</code> call to one or more calls
it generates to <code>callback</code>.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30686 ">&nbsp;</td>
</tr>
<tr class="bg ">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30676 ">
<p><code>result.ErrorCode</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30681 ">
<p>This is a number that specifies a predefined error code.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30686 ">
<p>See <a href="GUID-0A215AF3-59F0-4158-842C-0D7B030E5EA4.html#GUID-0A215AF3-59F0-4158-842C-0D7B030E5EA4">Service API error codes</a>.</p>
</td>
</tr>
<tr class="">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30676 ">
<p><code>result.ErrorMessage</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30681 ">
<p>This is a text string that describes the error.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e30686 ">
<p>See <a href="GUID-8722B5DB-5EA6-446D-8C1D-7A0B3D8781EF.html#GUID-8722B5DB-5EA6-446D-8C1D-7A0B3D8781EF">Contacts Service API error messages</a>.</p>
</td>
</tr>
</tbody>
</table></div>
<p><strong>Remarks:</strong></p>
<p>The default contacts database is <code>cntdb://c:contacts.cdb</code>.
The SIM card database is <code>sim://global_adn</code>.</p>
<p><strong>Example code:</strong></p>
<p/>
<p>For the complete source of a sample widget
that demonstrates how to use this Service API, see <a href="GUID-B2BCD2C0-DA4D-4830-9BF3-5DA50879A3A1.html#GUID-B2BCD2C0-DA4D-4830-9BF3-5DA50879A3A1">the
full example</a>.</p>




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