SalesForce.Com Issues/Gotchas aka. Bugs/Defects (again !!!)

Yet another undocumented SalesForce Bug has been found !!!

This bring my personal count to 4 and climbing…

It is rather odd these kinds of defects can exist in such a prestigious framework as SalesForce/VisualForce/Apex with so many people using it when other web-based Frameworks (Django and others) do NOT exhibit such behaviors.

I have revised #2 and #3 while adding some additional issues since my last post:  (This is where experience counts… since I know what is expected when unexpected things begin to happen…)

SalesForce.Com Issues/Gotchas aka. Bugs/Defects (Redux)

1. Cannot reference null values for <apex:outputText/> or <apex:inputText/>.
2. Cannot reference non-String objects with <apex:outputText/> or <apex:inputText/>.

1. Under some circumstances VisualForce will allow String objects to be referenced by <apex:outputText/> or <apex:inputText/> tags however after a certain threshold has been reached the Force IDE will begin to complain about what it calls SObject references after which the only acceptable correction is to reference the result from a SOQL query – this can clash with #2 for some obvious reasons.
2. VisualForce/Apex cannot handle instance variables that contain “_” underscores in variable names nor can Custom Field names be used from SOQL Queries in this manner.

Cannot retrieve the Parameters from ApexPages.currentPage() more than exactly once because the associated [Parameters] information is lost for subsequent invocations.

Cannot pass back the ApexPages.currentPage() when expecting the user to make a correction in the <apex:inputText/> because the VisualForce page will remember the values from the Parameters thus ignoring user inputs for subsequent form posts.