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<?xml version="1.0" encoding="UTF-8"?>
<helpdocument version="1.0">
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<meta>
<topic id="textsbasicshared03090201xml" indexer="include" status="PUBLISH">
<title id="tit" xml-lang="en-US">Do...Loop Statement</title>
<filename>/text/sbasic/shared/03090201.xhp</filename>
</topic>
</meta>
<body>
<section id="doloop">
<bookmark xml-lang="en-US" branch="index" id="bm_id3156116">
<bookmark_value>Do...Loop statement</bookmark_value>
<bookmark_value>While; Do loop</bookmark_value>
<bookmark_value>Until</bookmark_value>
<bookmark_value>loops</bookmark_value>
</bookmark>
<paragraph id="hd_id3156116" role="heading" level="1" xml-lang="en-US"><link href="text/sbasic/shared/03090201.xhp" name="Do...Loop Statement">Do...Loop Statement</link></paragraph>
<paragraph id="par_id3109850" role="paragraph" xml-lang="en-US">Repeats the statements between the <emph>Do</emph> and the <emph>Loop</emph> statement while the condition is <literal>True</literal> or until the condition becomes <literal>True</literal>.</paragraph>
</section>
<embed href="text/sbasic/shared/00000003.xhp#functsyntax"/>
<paragraph role="image" id="par_id311592320434736"><image src="media/helpimg/sbasic/Do_statement.svg" id="img_id601592320434736"><alt id="alt_id551592320434736">Do statement</alt></image></paragraph>
<bascode>
<paragraph role="bascode" id="bas_id431592385468901" localize="false">Do {While | Until} condition = True</paragraph>
<paragraph role="bascode" id="bas_id171592386317704" xml-lang="en-US">' Do While: The statement block is repeated as long as the condition is true</paragraph>
<paragraph role="bascode" id="bas_id11592386319239" xml-lang="en-US">' Do Until: The statement block is repeated as long as the condition is false</paragraph>
<paragraph role="bascode" id="bas_id131592385470352" localize="false"> statements</paragraph>
<paragraph role="bascode" id="bas_id581592385470803" localize="false"> [Exit Do]</paragraph>
<paragraph role="bascode" id="bas_id461592385471261" localize="false"> statements</paragraph>
<paragraph role="bascode" id="bas_id831592385471675" localize="false">Loop</paragraph>
</bascode>
<paragraph role="image" id="par_id591592320435808"><image src="media/helpimg/sbasic/Do-Loop_statement.svg" id="img_id691592320435808"><alt id="alt_id341592320435808">Do...Loop statement</alt></image></paragraph>
<bascode>
<paragraph role="bascode" id="bas_id441592385468901" localize="false">Do</paragraph>
<paragraph role="bascode" id="bas_id141592385470352" localize="false"> statements</paragraph>
<paragraph role="bascode" id="bas_id541592385470803" localize="false"> [Exit Do]</paragraph>
<paragraph role="bascode" id="bas_id441592385471261" localize="false"> statements</paragraph>
<paragraph role="bascode" id="bas_id911592386676044" xml-lang="en-US">' Loop While: The statement block repeats as long as the condition is true</paragraph>
<paragraph role="bascode" id="bas_id971592386677004" xml-lang="en-US">' Loop Until: The statement block repeats until the condition is true</paragraph>
<paragraph role="bascode" id="bas_id841592385471675" localize="false">Loop {While | Until} condition = True</paragraph>
</bascode>
<embed href="text/sbasic/shared/00000003.xhp#functparameters"/>
<paragraph id="par_id3150791" role="paragraph" xml-lang="en-US">The <emph>Do...Loop</emph> statement executes a loop as long as, or until, a certain condition is <literal>True</literal>. The condition for exiting the loop must be entered following either the <emph>Do</emph> or the <emph>Loop</emph> statement. The above examples are valid combinations.</paragraph>
<paragraph id="par_id3156344" role="paragraph" xml-lang="en-US"> <emph>condition:</emph> A comparison, numeric or Basic expression, that evaluates to either <literal>True</literal> or <literal>False</literal>.</paragraph>
<paragraph id="par_id3149669" role="paragraph" xml-lang="en-US"> <emph>statements:</emph> Statements that you want to repeat while or until a condition is <literal>True</literal>.</paragraph>
<paragraph id="par_id3149484" role="paragraph" xml-lang="en-US">Use the <emph>Exit Do</emph> statement to unconditionally end the loop. You can add this statement anywhere in a <emph>Do</emph>...<emph>Loop</emph> statement. You can also define an exit condition using the <emph>If...Then</emph> structure as follows:</paragraph>
<bascode>
<paragraph role="bascode" id="bas_id831592387131224" localize="false">Do...</paragraph>
<paragraph role="bascode" id="bas_id621592387131776" localize="false"> statements</paragraph>
<paragraph role="bascode" id="bas_id721592387132161" localize="false"> If condition = True Then Exit Do</paragraph>
<paragraph role="bascode" id="bas_id141592387132344" localize="false"> statements</paragraph>
<paragraph role="bascode" id="bas_id91592387132592" localize="false">Loop...</paragraph>
</bascode>
<embed href="text/sbasic/shared/00000003.xhp#functexample"/>
<bascode>
<paragraph id="par_idm1341080208" role="bascode" localize="false">Sub ExampleDoLoop</paragraph>
<paragraph id="par_idm1341078976" role="bascode" localize="false"> Dim sFile As String</paragraph>
<paragraph id="par_idm1341077744" role="bascode" localize="false"> Dim sPath As String</paragraph>
<paragraph id="par_idm1341076512" role="bascode" localize="false"> sPath = "c:\"</paragraph>
<paragraph id="par_idm1341075280" role="bascode" localize="false"> sFile = Dir$( sPath ,22)</paragraph>
<paragraph id="par_idm1341074032" role="bascode" localize="false"> If sFile <> "" Then</paragraph>
<paragraph id="par_idm1341072656" role="bascode" localize="false"> Do</paragraph>
<paragraph id="par_idm1341071456" role="bascode" localize="false"> MsgBox sFile</paragraph>
<paragraph id="par_idm1341070208" role="bascode" localize="false"> sFile = Dir$</paragraph>
<paragraph id="par_idm1341068960" role="bascode" localize="false"> Loop Until sFile = ""</paragraph>
<paragraph id="par_idm1341067712" role="bascode" localize="false"> End If</paragraph>
<paragraph id="par_idm1341066480" role="bascode" localize="false">End Sub</paragraph>
</bascode>
<section id="relatedtopics">
<paragraph role="paragraph" id="par_id161588865796615"><link href="text/sbasic/shared/03090202.xhp" name="For statement">For</link>, <link href="text/sbasic/shared/03090102.xhp" name="Select Case statement">Select Case</link> or <link href="text/sbasic/shared/03090203.xhp" name="While statement">While</link> statements</paragraph>
<paragraph role="paragraph" id="par_id281588865818334"><link href="text/sbasic/shared/03090103.xhp" name="Iif function">Iif</link> or <link href="text/sbasic/shared/03090410.xhp" name="Switch function">Switch</link> functions</paragraph>
</section>
</body>
</helpdocument>
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