[Roopam K]

I am assuming you mean to show a validation error on the standard edit/detail page using a trigger on the deletion of the record. This can achieved by using the "AddError" method (refer to documentation here : https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_triggers_exceptions.htm).

The trigger code would look something like this :

trigger <triggername> on <object> (before delete)
{
// iterate the deleted records from trigger.new
for(<object> o : trigger.new)
{
if(<validation condition goes here>){
o.addError(<error message>);
}
}

 

 

• This reply was modified 6 years, 6 months ago by  Roopam K.