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24<helpdocument version="1.0">
25<meta>
26<topic id="textsbasicshared03102300xml" indexer="include" status="PUBLISH">
27<title id="tit" xml-lang="en-US">IsDate Function [Runtime]</title>
28<filename>/text/sbasic/shared/03102300.xhp</filename>
29</topic>
30</meta>
31<body>
32<section id="isdate">
33<bookmark xml-lang="en-US" branch="index" id="bm_id3145090">
34<bookmark_value>IsDate function</bookmark_value>
35</bookmark>
36<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>
37<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>
38</section>
39<paragraph role="heading" id="hd_id3153824" xml-lang="en-US" level="2" l10n="U" oldref="3">Syntax:</paragraph>
40<paragraph role="paragraph" id="par_id3147573" xml-lang="en-US" l10n="U" oldref="4">IsDate (Expression)</paragraph>
41<paragraph role="heading" id="hd_id3143270" xml-lang="en-US" level="2" l10n="U" oldref="5">Return value:</paragraph>
42<paragraph role="paragraph" id="par_id3147560" xml-lang="en-US" l10n="U" oldref="6">Bool</paragraph>
43<paragraph role="heading" id="hd_id3148947" xml-lang="en-US" level="2" l10n="U" oldref="7">Parameters:</paragraph>
44<paragraph role="paragraph" id="par_id3145069" xml-lang="en-US" l10n="U" oldref="8">
45<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>
46<embed href="text/sbasic/shared/00000003.xhp#errorcode"/>
47<embed href="text/sbasic/shared/00000003.xhp#err5"/>
48<paragraph role="heading" id="hd_id3150447" xml-lang="en-US" level="2" l10n="U" oldref="9">Example:</paragraph>
49<paragraph role="paragraph" id="par_id3154217" xml-lang="en-US" l10n="U" oldref="10">Sub ExampleIsDate</paragraph>
50<paragraph role="paragraph" id="par_id3153970" xml-lang="en-US" l10n="U" oldref="11">Dim sDateVar as String</paragraph>
51<paragraph role="paragraph" id="par_id3153193" xml-lang="en-US" l10n="U" oldref="12">sDateVar = "12.12.1997"</paragraph>
52<paragraph role="paragraph" id="par_id3150869" xml-lang="en-US" l10n="U" oldref="13">print IsDate(sDateVar) REM Returns True</paragraph>
53<paragraph role="paragraph" id="par_id3148453" xml-lang="en-US" l10n="U" oldref="14">sDateVar = "12121997"</paragraph>
54<paragraph role="paragraph" id="par_id3147288" xml-lang="en-US" l10n="U" oldref="15">print IsDate(sDateVar) REM Returns False</paragraph>
55<paragraph role="paragraph" id="par_id3155132" xml-lang="en-US" l10n="U" oldref="16">end sub</paragraph>
56</body>
57</helpdocument>
58