DOCUMENT:Q219271 04-MAR-1999 [iis] TITLE :How to Add the Immediate-If Function to an ASP Page PRODUCT :Internet Information Server PROD/VER:winnt:3.0,4.0,5.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server versions 3.0, 4.0, 5.0 ------------------------------------------------------------------------------- SUMMARY ======= One of the common Visual Basic (VB) or Visual Basic for Applications (VBA) functions that was omitted from VBScript (VBS) for Active Server Pages (ASP) is the "Immediate-If" or IIf() function. The IIf() function is used in place of If..Then..Else statements, where a single expression is being tested and specific values are returned if the expression evaluates as true or false. Because this command was omitted from the ASP VBS command set, you can use the code below to add this functionality to an ASP page by adding IIf() as a new function to the code. MORE INFORMATION ================ The following syntax explanation is from Microsoft's Developer Network: IIf Function ------------ Returns one of two parts, depending on the evaluation of an expression. Syntax IIf(expr,truepart,falsepart) +----------------------------------------------------------------------+ | Part | Description | +----------------------------------------------------------------------+ | expr | Required. Expression you want to evaluate. | +----------------------------------------------------------------------+ | truepart | Required. Value or expression returned if expr is True. | +----------------------------------------------------------------------+ | falsepart | Required. Value or expression returned if expr is False. | +----------------------------------------------------------------------+ Usage ----- The IIf() function can be used in ASP code by adding the following function to a page: Function IIf(i,j,k) If i Then IIf = j Else IIf = k End Function Example ------- The following ASP code shows an example page using the IIf() function to determine if a number is even or odd: <% @LANGUAGE="VBSCRIPT" %> <% Function IIf(i,j,k) If i Then IIf = j Else IIf = k End Function %> IIF() example For more information on Microsoft Scripting Technologies, please see the information at the following URL: Additional query words: ====================================================================== Keywords : Technology : kbiisSearch kbiis500 kbiis400 kbiis300 Version : winnt:3.0,4.0,5.0 Issue type : kbhowto ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1999.