how to add values to list in salesforce via query

How to add new picklist values in Salesforce?

Go to Setup > object > fields, click on field and then in bottom you will see the button to add in new pick list values. Go to Setup > object > fields, click on field and Click on New to add the new picklist values. For reference

How do I edit the pick list values of a field?

Click on the Field Label Name of the field you wish to edit In the Pick List Values section, click the " New " button Add the value (s) as desired. Please check the below link for screenshots.

How to assign the value of list to set?

You can assign the value of list to set by using predefine methods of Set. Please let me know if this helps you! You need to sign in to do that. Need an account?

Is it possible to iterate over an apex map in Salesforce?

But, logic like this might imply you should consider exploring the apex map collection type and its methods. Know you can use the map.values () property to still reference it as a list, or can directly iterate over a map in Visualforce too. Thanks for contributing an answer to Salesforce Stack Exchange!

How do I add a value to a list in Salesforce?

The first method is add(ListElement) – using this method, we can insert an element into the list. The code is, Dept....apxc class code is,public class ApexList {public static void Listtest() {List < String > Dept = new List < String > {'CSE','EEE','ECE'};system. debug('Default Department List : ' + Dept);More items...•

How do I add an item to a list in Apex?

List Methodsadd(listElement) Adds an element to the end of the list.add(index, listElement) Inserts an element into the list at the specified index position.addAll(fromList) ... addAll(fromSet) ... clear() ... clone() ... contains(listElement) ... deepClone(preserveId, preserveReadonlyTimestamps, preserveAutonumber)More items...

How do I add elements to an array in Salesforce?

How to add value to a specific array or list index using apex in...List < String > strList = new List < String >();strList. add( 'Test 0' );strList. add( 'Test 1' );strList. add( 'Test 2' );system. debug( 'Value in 1st block is ' + strList. ... strList. add( 1, 'Sample 1' );system.

How do I add a value to a map in Salesforce?

How to use Map methods in SalesforceCreating a Map: Map variablename=new Map(); ... Different Methods in Map:put(key, value): It returns the value with given key in the map. ... clear(): It removes all the key-value mapping pairs from the map.get(key): ... keySet(): ... values(): ... size():More items...•

How do I add a list of strings in Salesforce?

How to use list methods in salesforceSyntax:Creating a list: List variablename = new List();Ex: ... Ex: ... List has many predefined methods in which we will look into some of them.add(ListElement): It inserts an element into the list.List name = new List();More items...•

How do I insert multiple records in Salesforce?

How to insert multiple records at a time?class for inserting more than one record at a time (list of records) ... Inserting list of records through For loop. ... Performing the pagination on VF page (display 2 records per page)

What is the difference between array and List in Salesforce?

Even though the size of the previous String array is defined as one element (the number between the brackets in new String), lists are elastic and can grow as needed provided that you use the List add method to add new elements. For example, you can add two or more elements to the colors list.

What is the difference between array and List in Apex?

Arrays in Apex are basically the same as Lists in Apex. There is no logical distinction between the Arrays and Lists as their internal data structure and methods are also same but the array syntax is little traditional like Java.

How do I use an array in Salesforce?

Let us understand the working of an Arrays in Apex by writing a simple program to display Array of strings in PageBlockTable. To create an Apex class in Salesforce, login to Salesforce -> Developer console -> File -> File -> New -> Apex class. Enter the Apex class name to create new Apex Class.

How do I put data into Apex map?

If you want to add a map onto existing map, use putAll() method. finalMap. get('DETAILS'). putAll(subDetails);

How do I add elements to Apex map?

Once you have instantiated a map, you can add values to the map simply by using the put() method. However, if you happen to have a list of sObjects you can just pass that list in the constructor like so: Map accountsById = new Map(listOfAccounts);

What is containsKey in Salesforce?

Makes a duplicate copy of the map. containsKey(key) Returns true if the map contains a mapping for the specified key. deepClone() Makes a duplicate copy of a map, including sObject records if this is a map with sObject record values.