"Roll Up Summary" trigger to summarize Opportunity Amount to Custom Object
34922
How to write a rollup summary trigger for a lookup relationship
123178
Best approach to Windows Forms rolling log output in TextBox
131066
C# List of objects, how do I get the sum of a property
110012
DmlException:SELF_REFERENCE_FROM_TRIGGER
25939
Is it possible to obtain class summary at runtime?
135326
Roll-up Summary FIeld is not calculated on after insert trigger
115818
Lead assignment rule in a trigger
86693
Trigger to prevent duplication of records in Salesforce
99388
custom counter and cross-referencing
10808
how to bulkify the trigger
111960
How to output the final value of some counter, like number of figures or tables in the middle of the document?
90191
How can I edit this trigger to only fire once?
96582
How to add field history and product as a related list of opportunity in vf page
75758
Automatically add ProductB once productA is manually added to Opportunity
156635
Does addError() work outside of triggers?
15501
How to update Opportunity Line Item product on a related custom object?
33613
Why is this trigger finding a null value despite the field being populated?