[SalesForce] Apex check for blank picklist value

I am writing a trigger that has an IF clause based off of a field. However, I cannot get it to recognize if that picklist is blank. I have tried:

field.isblank()
string.isblank(field)
field == ''
field == '--None--'
field == NULL

None of these catch when there is no value. Prior to saving the record, the field says 'deleted' if I set it to –none–…but I'm not sure how to check that value within a trigger.

Thank you!

Best Answer

A picklist is essentially a string. For a string, you want to test using isEmpty() == true. That covers '' and null. If you have a --none-- you want to test against, you'll want to also add that specifically to your conditions if that's an optional value included in your picklist. If so, use a boolean ||.

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[SalesForce] I need a String method in a Trigger to validate if a Rich Text Area is blank

You can remove all html tags (or just br if you want) and use isblank so that whitespace is not an issue.

String richtextstr = string.valueof(new_application_dependency_record.Application_Workaround__cApplication_Workaround__c);
richtextstr = richtextstr.replaceall('<.*>','');
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I'm guessing you probably did something like this:

record.Count__c = '';

This is not a blank value, it's an empty String. To make a field blank, set it to "null":

record.Count__c = null;

Best Answer

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