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24<helpdocument version="1.0">
25<meta>
26<topic id="textsbasicshared03090101xml" indexer="include" status="PUBLISH">
27<title id="tit" xml-lang="en-US">If...Then...Else Statement [Runtime]</title>
28<filename>/text/sbasic/shared/03090101.xhp</filename>
29</topic>
30</meta>
31<body>
32<section id="ifthenelse">
33<bookmark xml-lang="en-US" branch="index" id="bm_id3154422">
34<bookmark_value>If statement</bookmark_value>
35</bookmark>
36<paragraph role="heading" id="hd_id3154422" xml-lang="en-US" level="1" l10n="U" oldref="1"><link href="text/sbasic/shared/03090101.xhp" name="If...Then...Else Statement [Runtime]">If...Then...Else Statement [Runtime]</link></paragraph>
37<paragraph role="paragraph" id="par_id3155555" xml-lang="en-US" l10n="U" oldref="2">Defines one or more statement blocks that you only want to execute if a given condition is True.</paragraph>
38</section>
39<paragraph role="heading" id="hd_id3146957" xml-lang="en-US" level="2" l10n="U" oldref="3">Syntax:</paragraph>
40<paragraph role="paragraph" id="par_id3153126" xml-lang="en-US" l10n="CHG" oldref="4">If condition=true Then Statement block [ElseIf condition=true Then] Statement block [Else] Statement block EndIf<br/>Instead of Else If you can write ElseIf, instead of End If you can write EndIf.</paragraph>
41<paragraph role="heading" id="hd_id3155419" xml-lang="en-US" level="2" l10n="U" oldref="5">Parameters:</paragraph>
42<paragraph role="paragraph" id="par_id3153062" xml-lang="en-US" l10n="U" oldref="6">The <emph>If...Then</emph> statement executes program blocks depending on given conditions. When $[officename] Basic encounters an <emph>If</emph> statement, the condition is tested. If the condition is True, all subsequent statements up to the next <emph>Else</emph> or <emph>ElseIf</emph> statement are executed. If the condition is False, and an <emph>ElseIf</emph> statement follows, $[officename] Basic tests the next condition and executes the following statements if the condition is True. If False, the program continues either with the next <emph>ElseIf</emph> or <emph>Else</emph> statement. Statements following <emph>Else</emph> are executed only if none of the previously tested conditions were True. After all conditions are evaluated, and the corresponding statements executed, the program continues with the statement following <emph>EndIf</emph>.</paragraph>
43<paragraph role="paragraph" id="par_id3153192" xml-lang="en-US" l10n="U" oldref="7">You can nest multiple <emph>If...Then</emph> statements.</paragraph>
44<paragraph role="paragraph" id="par_id3154684" xml-lang="en-US" l10n="U" oldref="8">
45<emph>Else</emph> and <emph>ElseIf</emph> statements are optional.</paragraph>
46<paragraph role="warning" id="par_id3152939" xml-lang="en-US" l10n="U" oldref="9">You can use <emph>GoTo</emph> and <emph>GoSub</emph> to jump out of an <emph>If...Then</emph> block, but not to jump into an <emph>If...Then</emph> structure.</paragraph>
47<paragraph role="paragraph" id="par_id3153951" xml-lang="en-US" l10n="U" oldref="10">The following example enables you to enter the expiration date of a product, and determines if the expiration date has passed.</paragraph>
48<paragraph role="heading" id="hd_id3152576" xml-lang="en-US" level="2" l10n="U" oldref="11">Example:</paragraph>
49<paragraph role="paragraph" id="par_id3150011" xml-lang="en-US" l10n="U" oldref="12">Sub ExampleIfThenDate</paragraph>
50<paragraph role="paragraph" id="par_id3148645" xml-lang="en-US" l10n="U" oldref="13">Dim sDate as String</paragraph>
51<paragraph role="paragraph" id="par_id3155855" xml-lang="en-US" l10n="U" oldref="14">Dim sToday as String</paragraph>
52<paragraph role="paragraph" id="par_id3154490" xml-lang="en-US" l10n="U" oldref="16">sDate = InputBox("Enter the expiration date (MM.DD.YYYY)")</paragraph>
53<paragraph role="paragraph" id="par_id3154943" xml-lang="en-US" l10n="U" oldref="17">sDate = Right$(sDate, 4) + Mid$(sDate, 4, 2) + Left$(sDate, 2)</paragraph>
54<paragraph role="paragraph" id="par_id3154098" xml-lang="en-US" l10n="U" oldref="18">sToday = Date$</paragraph>
55<paragraph role="paragraph" id="par_id3144765" xml-lang="en-US" l10n="U" oldref="19">sToday = Right$(sToday, 4)+ Mid$(sToday, 4, 2) + Left$(sToday, 2)</paragraph>
56<paragraph role="paragraph" id="par_id3154792" xml-lang="en-US" l10n="U" oldref="20">If sDate &lt; sToday Then</paragraph>
57<paragraph role="paragraph" id="par_id3155601" xml-lang="en-US" l10n="U" oldref="21">MsgBox "The expiration date has passed"</paragraph>
58<paragraph role="paragraph" id="par_id3146972" xml-lang="en-US" l10n="U" oldref="22">ElseIf sDate &gt; sToday Then</paragraph>
59<paragraph role="paragraph" id="par_id3146912" xml-lang="en-US" l10n="U" oldref="23">MsgBox "The expiration date has not yet passed"</paragraph>
60<paragraph role="paragraph" id="par_id3153710" xml-lang="en-US" l10n="U" oldref="24">Else</paragraph>
61<paragraph role="paragraph" id="par_id3154754" xml-lang="en-US" l10n="U" oldref="25">MsgBox "The expiration date is today"</paragraph>
62<paragraph role="paragraph" id="par_id3154361" xml-lang="en-US" l10n="U" oldref="26">End If</paragraph>
63<paragraph role="paragraph" id="par_id3148405" xml-lang="en-US" l10n="U" oldref="28">End Sub</paragraph>
64</body>
65</helpdocument>
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