I have created a rule that evaluates a users input to a parameter, however, I have found that the rule is case sensitive and if the user uses lower case then the output parameters do not update. Here is a small snipet of the rule.

if `INDEX_LOCATION` == "FRONT"

{
 `INDEX` = "FWD"
}

if `INDEX_LOCATION` == "REAR"

{
 `INDEX` = "AFT"
}

I need to be able to recognize lowercase inputs to the parameter "INDEX_LOCATION".

If ToUpper(`INDEX_LOCATION`) == "FRONT"
{
....

You can avoid the whole issue altogether by defining the parameter as multi-value with only the legal values as choices in the pulldown.

Thanks to Cliff and Knowledgeds, I had forgotten about the Language Browser to determine available methods. Anyhow, I made the change "ToUpper" and it works but I would like the pulldown combobox option. I have the pulldown built, it pops up with the correct legal value inputs, but I can not get it to change the parameter. I tried recording a macro to use that code, but I can not get it to work in the pulldown.

Any suggestions?

From your original post I thought you were just using rules, in which case the parameter is just changed by the user.

If you want to change a value of a parameter using VB you typically must use either assign the value directly like

    theParam.Value = "FRONT"                     

which is appropriate for strings, reals, integers, and booleans. Or  use the ValuateFromString method

    Call theParam.ValuateFromString("1.25in" )                

for parameters with units

Thanks, In the original post, the user was required to manually interact with the parameters, but after I saw your reply (with the image), I thought I would like the option of having a combobox fired from a reaction which would force the user to input the information. Occasionally, they forget to do it manually and as a result the parameter value is incorrect. Thanks again, I will try the method you have described.