org.symbian.tools.wrttools.doc.WebDeveloper/html/GUID-890D2F5C-D43F-44B2-97A0-5F5B9230C85F.html
author Eugene Ostroukhov <eugeneo@symbian.org>
Mon, 15 Mar 2010 17:56:08 -0700
changeset 268 ef733cd772bb
parent 229 716254ccbcc0
permissions -rw-r--r--
Bug 2213 - User is not prompted to save when debug session is started


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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.Export()"/><meta name="DC.Relation" scheme="URI" content="GUID-D4014B08-C48C-48EB-B3A5-1A09FF636B3C"/><meta name="DC.Relation" scheme="URI" content="GUID-D19BB894-371A-4D55-A047-3B2F97673F5F"/><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-CABB28B8-D2B1-496B-BD7E-34FF496E60B4"/><meta name="DC.Format" content="XHTML"/><meta name="DC.Identifier" content="GUID-890D2F5C-D43F-44B2-97A0-5F5B9230C85F"/><title>IDataSource.Export() </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-890D2F5C-D43F-44B2-97A0-5F5B9230C85F"><span>IDataSource.</span>Export()</h1><div>
<p><strong>Description:</strong></p>
<p>The <code>Export</code> method exports entries from a calendar.
The information is exported to an iCal or vCal file. For more information
about these two formats, see the <a href="GUID-AE9A928B-F938-49B5-BC9E-72CB42046571.html#GUID-AE9A928B-F938-49B5-BC9E-72CB42046571">Calendar
Service overview page</a>.</p>
<p>This method can be called both synchronously and asynchronously.</p>
<p><strong>Syntax:</strong></p>
<p>For synchronous calls:</p>
<pre class="codeblock" id="GUID-867E59FA-FCED-42D7-A1F9-18FE2C63BA2F">result = so.IDataSource.Export(criteria);</pre>

<p>For asynchronous calls:</p>
<pre class="codeblock" id="GUID-5102176B-E45E-4E01-BDCE-7A0205C1E4F9">result = so.IDataSource.Export(criteria, callback);</pre>

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

<p>This is an object that specifies the entries to export and optionally
the source calendar. For more information about the object properties and
how to define them, see section <a href="GUID-36434377-FA7E-45F2-AEB3-BA0B7A378422.html#GUID-36434377-FA7E-45F2-AEB3-BA0B7A378422">Criteria for exporting calendar entries</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>Export</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>Export</code> call.</p>

</li>
</ul>
<p><strong>Return value:</strong></p>
<p>If synchronous, the <code>Export</code> method returns an object
that contains an error code, an error message, and optionally the exported
calendar entries.</p>
<div class="tablenoborder"><a name="GUID-CC57105F-F4E6-46DA-8049-0F9B5667CDF6"><!----></a><table cellpadding="4" cellspacing="0" summary="" id="GUID-CC57105F-F4E6-46DA-8049-0F9B5667CDF6" frame="border" border="1" rules="all"><caption><strong>Table: </strong>Return value
properties for a synchronous Export</caption>

<thead align="left">
<tr class="title "><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e23611">
<p>Property</p>
</th><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e23616">
<p>Description</p>
</th><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e23621">
<p>Value</p>
</th></tr>
</thead>
<tbody>
<tr class="">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23611 ">
<p><code>[result.ReturnValue]</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23616 ">
<p>This <span>is a text string that</span> contains the exported entries in the
specified format.</p>
<p>This property is only included if <code>Data.FileName</code> was
not specified in the <a href="GUID-36434377-FA7E-45F2-AEB3-BA0B7A378422.html#GUID-36434377-FA7E-45F2-AEB3-BA0B7A378422">input</a>.
This property serves as a buffer that contains the same data as the target
file would have had it been specified.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23621 ">&nbsp;</td>
</tr>
<tr class="bg ">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23611 ">
<p><code>result.ErrorCode</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23616 ">
<p>This is a number that specifies a predefined error code.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23621 ">
<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="d0e23611 ">
<p><code>result.ErrorMessage</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23616 ">
<p>This is a text string that describes the error.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23621 ">
<p>See <a href="GUID-92BD4759-43FA-482F-A12B-3F5607D4AA35.html#GUID-92BD4759-43FA-482F-A12B-3F5607D4AA35">Calendar Service API error messages</a>.</p>
</td>
</tr>
</tbody>
</table></div>
<p>If asynchronous, the <code>Export</code> method returns an object
that contains a transaction ID for the <a href="GUID-C7C3B541-8D28-4DC6-9003-ECF57F26C608.html#GUID-C7C3B541-8D28-4DC6-9003-ECF57F26C608"><code>callback</code></a> instance,
an error code, and an error message (see the following table). When the asynchronous
call has completed, <code>callback</code> returns an object that contains
an error code, an error message, and optionally the exported calendar entries
(see the preceding table).</p>
<div class="tablenoborder"><a name="GUID-F1F28BFF-1B67-4041-BAC8-896778130194"><!----></a><table cellpadding="4" cellspacing="0" summary="" id="GUID-F1F28BFF-1B67-4041-BAC8-896778130194" frame="border" border="1" rules="all"><caption><strong>Table: </strong>Return value
properties for an asynchronous Export</caption>

<thead align="left">
<tr class="title "><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e23737">
<p>Property</p>
</th><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e23742">
<p>Description</p>
</th><th class="cellrowborder" valign="top" width="33.33333333333333%" id="d0e23747">
<p>Value</p>
</th></tr>
</thead>
<tbody>
<tr class="">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23737 ">
<p><code>result.TransactionID</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23742 ">
<p>This is a number used as an identification to match transactions started
with an asynchronous <code>Export</code> call to one or more calls
it generates to <code>callback</code>.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23747 ">&nbsp;</td>
</tr>
<tr class="bg ">
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23737 ">
<p><code>result.ErrorCode</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23742 ">
<p>This is a number that specifies a predefined error code.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23747 ">
<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="d0e23737 ">
<p><code>result.ErrorMessage</code></p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23742 ">
<p>This is a text string that describes the error.</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="d0e23747 ">
<p>See <a href="GUID-92BD4759-43FA-482F-A12B-3F5607D4AA35.html#GUID-92BD4759-43FA-482F-A12B-3F5607D4AA35">Calendar Service API error messages</a>.</p>
</td>
</tr>
</tbody>
</table></div>
<p><strong>Remarks:</strong></p>
<ul>
<li><p>The calendar file from which the entries are exported must
exist on the device.</p></li>
<li><p>For detailed information about calendar entries, see section <a href="GUID-798E9CA0-2A46-4D10-B567-04C9567500F4.html#GUID-798E9CA0-2A46-4D10-B567-04C9567500F4">Calendar entries</a>.</p></li>
</ul>
<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-7C0890BC-7931-417B-B4AC-6E77E65A10F3.html#GUID-7C0890BC-7931-417B-B4AC-6E77E65A10F3">the full example</a>.</p>




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