====== WHILE... ======
**Usage 1:**  

       WHILE (exp:boolean) statement ...  
While "exp" is true execute statement; when "exp" is false execute following statements  

**Usage 2:**  

       WHILE (exp) DO  
       ...  
       ENDWHILE  
`WHILE` - While "exp" is true execute statement(s); when "exp" is false transfer control to the first statement following the ENDWHILE statement (requires DO [or THEN] after the expression)  
`ENDWHILE` - Transfers control to the closest WHILE statement and marks the end of the WHILE loop (END WHILE is a synonym)  

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**See also:** [[ppl:statements:if_then_else|If..Then]], [[ppl:statements:for_next|For...Next]]