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 ************************************************************************--><helpdocument version="1.0"> 30<meta> 31<topic id="textsbasicshared03090203xml" indexer="include" status="PUBLISH"> 32<title xml-lang="en-US" id="tit">While...Wend Statement[Runtime]</title> 33<filename>/text/sbasic/shared/03090203.xhp</filename> 34</topic> 35<history> 36<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created> 37<lastedited date="2003-10-31T00:00:00">converted from old format - fpe</lastedited> 38</history> 39</meta> 40<body> 41 42 43 <section id="whilewend"> 44 <bookmark xml-lang="en-US" branch="index" id="bm_id3150400"><bookmark_value>While;While...Wend loop</bookmark_value></bookmark><paragraph id="hd_id3150400" role="heading" level="1" oldref="1" l10n="U" xml-lang="en-US"><link href="text/sbasic/shared/03090203.xhp" name="While...Wend Statement[Runtime]">While...Wend Statement[Runtime]</link></paragraph> 45 <paragraph xml-lang="en-US" role="paragraph" id="par_id3151211" l10n="U" oldref="2">When a program encounters a While statement, it tests the condition. If the condition is False, the program continues directly following the Wend statement. If the condition is True, the loop is executed until the program finds Wend and then jumps back to the<emph> While </emph>statement. If the condition is still True, the loop is executed again.</paragraph> 46 </section> 47 <paragraph xml-lang="en-US" oldref="3" id="par_id3151041" l10n="U" role="paragraph">Unlike the <link href="text/sbasic/shared/03090201.xhp" name="Do...Loop">Do...Loop</link> statement, you cannot cancel a <emph>While...Wend</emph> loop with <link href="text/sbasic/shared/03090412.xhp" name="Exit">Exit</link>. Never exit a While...Wend loop with <link href="text/sbasic/shared/03090302.xhp" name="GoTo">GoTo</link>, since this can cause a run-time error.</paragraph> 48 <paragraph role="paragraph" id="par_id3145172" l10n="U" xml-lang="en-US" oldref="4">A Do...Loop is more flexible than a While...Wend.</paragraph> 49 <paragraph role="heading" level="2" id="hd_id3155133" l10n="U" xml-lang="en-US" oldref="5">Syntax:</paragraph> 50 <paragraph role="paragraph" id="par_id3147288" l10n="U" xml-lang="en-US" oldref="6">While Condition [Statement] Wend</paragraph> 51 <paragraph role="heading" level="2" id="hd_id3153139" l10n="U" xml-lang="en-US" oldref="7">Example:</paragraph> 52 <paragraph role="paragraph" id="par_id3159153" l10n="U" xml-lang="en-US" oldref="8">Sub ExampleWhileWend</paragraph> 53 <paragraph role="paragraph" id="par_id3151114" l10n="U" xml-lang="en-US" oldref="9">Dim stext As String</paragraph> 54 <paragraph role="paragraph" id="par_id3153143" l10n="U" xml-lang="en-US" oldref="10">Dim iRun As Integer</paragraph> 55 <paragraph role="paragraph" id="par_id3155306" l10n="U" xml-lang="en-US" oldref="11">sText ="This is a short text"</paragraph> 56 <paragraph role="paragraph" id="par_id3154011" l10n="U" xml-lang="en-US" oldref="12">iRun = 1</paragraph> 57 <paragraph role="paragraph" id="par_id3147215" l10n="U" xml-lang="en-US" oldref="13">while iRun < Len(sText)</paragraph> 58 <paragraph role="paragraph" id="par_id3147427" l10n="U" xml-lang="en-US" oldref="14">if Mid(sText,iRun,1 )<> " " then Mid( sText ,iRun, 1, Chr( 1 + Asc( Mid(sText,iRun,1 )) )</paragraph> 59 <paragraph role="paragraph" id="par_id3149665" l10n="U" xml-lang="en-US" oldref="15">iRun = iRun + 1</paragraph> 60 <paragraph role="paragraph" id="par_id3152939" l10n="U" xml-lang="en-US" oldref="16">Wend</paragraph> 61 <paragraph role="paragraph" id="par_id3153189" l10n="U" xml-lang="en-US" oldref="17">MsgBox sText,0,"Text encoded"</paragraph> 62 <paragraph role="paragraph" id="par_id3145251" l10n="U" xml-lang="en-US" oldref="18">end sub</paragraph> 63 </body> 64</helpdocument> 65