1<?xml version="1.0" encoding="UTF-8"?> 2 3 4<!--*********************************************************************** 5 * 6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 7 * 8 * Copyright 2000, 2010 Oracle and/or its affiliates. 9 * 10 * OpenOffice.org - a multi-platform office productivity suite 11 * 12 * This file is part of OpenOffice.org. 13 * 14 * OpenOffice.org is free software: you can redistribute it and/or modify 15 * it under the terms of the GNU Lesser General Public License version 3 16 * only, as published by the Free Software Foundation. 17 * 18 * OpenOffice.org is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU Lesser General Public License version 3 for more details 22 * (a copy is included in the LICENSE file that accompanied this code). 23 * 24 * You should have received a copy of the GNU Lesser General Public License 25 * version 3 along with OpenOffice.org. If not, see 26 * <http://www.openoffice.org/license.html> 27 * for a copy of the LGPLv3 License. 28 * 29 ************************************************************************--> 30 31<helpdocument version="1.0"> 32<meta> 33<topic id="textsbasicshared03102300xml" indexer="include" status="PUBLISH"> 34<title id="tit" xml-lang="en-US">IsDate Function [Runtime]</title> 35<filename>/text/sbasic/shared/03102300.xhp</filename> 36</topic> 37<history> 38<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created> 39<lastedited date="2004-08-24T13:00:12">converted from old format - fpe</lastedited> 40</history> 41</meta> 42<body> 43<section id="isdate"> 44<bookmark xml-lang="en-US" branch="index" id="bm_id3145090"><bookmark_value>IsDate function</bookmark_value> 45</bookmark> 46<paragraph role="heading" id="hd_id3145090" xml-lang="en-US" level="1" l10n="U" oldref="1"><link href="text/sbasic/shared/03102300.xhp" name="IsDate Function [Runtime]">IsDate Function [Runtime]</link></paragraph> 47<paragraph role="paragraph" id="par_id3153311" xml-lang="en-US" l10n="U" oldref="2">Tests if a numeric or string expression can be converted to a <emph>Date</emph> variable.</paragraph> 48</section> 49<paragraph role="heading" id="hd_id3153824" xml-lang="en-US" level="2" l10n="U" oldref="3">Syntax:</paragraph> 50<paragraph role="paragraph" id="par_id3147573" xml-lang="en-US" l10n="U" oldref="4">IsDate (Expression)</paragraph> 51<paragraph role="heading" id="hd_id3143270" xml-lang="en-US" level="2" l10n="U" oldref="5">Return value:</paragraph> 52<paragraph role="paragraph" id="par_id3147560" xml-lang="en-US" l10n="U" oldref="6">Bool</paragraph> 53<paragraph role="heading" id="hd_id3148947" xml-lang="en-US" level="2" l10n="U" oldref="7">Parameters:</paragraph> 54<paragraph role="paragraph" id="par_id3145069" xml-lang="en-US" l10n="U" oldref="8"> 55<emph>Expression:</emph> Any numeric or string expression that you want to test. If the expression can be converted to a date, the function returns <emph>True</emph>, otherwise the function returns <emph>False</emph>.</paragraph> 56<embed href="text/sbasic/shared/00000003.xhp#errorcode"/> 57<embed href="text/sbasic/shared/00000003.xhp#err5"/> 58<paragraph role="heading" id="hd_id3150447" xml-lang="en-US" level="2" l10n="U" oldref="9">Example:</paragraph> 59<paragraph role="paragraph" id="par_id3154217" xml-lang="en-US" l10n="U" oldref="10">Sub ExampleIsDate</paragraph> 60<paragraph role="paragraph" id="par_id3153970" xml-lang="en-US" l10n="U" oldref="11">Dim sDateVar as String</paragraph> 61<paragraph role="paragraph" id="par_id3153193" xml-lang="en-US" l10n="U" oldref="12">sDateVar = "12.12.1997"</paragraph> 62<paragraph role="paragraph" id="par_id3150869" xml-lang="en-US" l10n="U" oldref="13">print IsDate(sDateVar) REM Returns True</paragraph> 63<paragraph role="paragraph" id="par_id3148453" xml-lang="en-US" l10n="U" oldref="14">sDateVar = "12121997"</paragraph> 64<paragraph role="paragraph" id="par_id3147288" xml-lang="en-US" l10n="U" oldref="15">print IsDate(sDateVar) REM Returns False</paragraph> 65<paragraph role="paragraph" id="par_id3155132" xml-lang="en-US" l10n="U" oldref="16">end sub</paragraph> 66</body> 67</helpdocument> 68