Here I’ve a custom “Student__c” object. There is a validation rule on “Date_of_Birth__c” field, that Date of Birth cannot be greater than today. And I’m using a visualforce page to insert the data in “Student__c” object. So, I need to show the validation rule error message in visualforce page.
Validation Rule:
Below is my controller which gave the solution for displaying validation error message on visualforce page.
Controller:
public with sharing class StudentExt {
public Student__c student{get;set;}
public StudentExt(ApexPages.StandardController controller) {
student = (Student__c)controller.getRecord();
}
public Pagereference saveStudent() {
try {
Upsert student;
return new Pagereference('/' + student.Id);
}
catch(DMLException de) {
Apexpages.addMessage(new ApexPages.Message(ApexPages.SEVERITY.FATAL, de.getDmlMessage(0)));
return NULL;
}
catch(Exception e) {
Apexpages.addMessage(new ApexPages.Message(ApexPages.SEVERITY.FATAL, e.getMessage()));
return NULL;
}
}
}
//Create Product
Product2 pro = new Product2(Name = 'iPhone X', Family = 'Mobile');
Insert pro;
//Instantiate the Pricebook2 record with StandardPricebookId
Pricebook2 standardPricebook = new Pricebook2(
Id = Test.getStandardPricebookId(),
IsActive = true
);
//Execute an update DML on the Pricebook2 record, to make IsStandard to true
Update standardPricebook;
//Query for the Pricebook2 record, to check IsStandard field
standardPricebook = [SELECT Id, IsStandard FROM Pricebook2 WHERE Id = :standardPricebook.Id];
//It should return true
System.assertEquals(true, standardPricebook.IsStandard);
//Create the PricebookEntry
PricebookEntry pbe = new PricebookEntry(
Pricebook2Id = standardPricebook.Id,
Product2Id = pro.Id,
UnitPrice = 1020,
IsActive = true
);
Insert pbe;
//Query the PricebookEntry record
pbe = [SELECT Id, Pricebook2.IsStandard FROM PricebookEntry];
//It should return true
System.assertEquals(true, pbe.Pricebook2.IsStandard);
Here in below example, I’ve a requirement on selection of “Category” picklist value “Product”, “Detail” inputfield will enable with required mark else will disable.
