Hello, in this video I will talk about with lists to value lists. Now, lists of value is a common component if component we usually use in our in if application. However, the listener have a list of value, we already really use it, but sometimes we need to use some listener is the list of value. So, this is first create list of value to show you how you can use the listener of the list of value. So I will go to the UI view attribute and they will convert this to a value is a department ID. So I would select department ID, this to value let me add this to value from the departmental view and I will select department ID.

Here I will select in particular with this to value will display or viewing and press OK. So we Carry now the store value here in attribute is the department ID attribute and serve he is a belief you object. So, let us now try to go to the beach and track this in buoy into the list of value listeners tab as for So, we will see here department ID is that if this to value input. So, let us now have a look about a service to value listener in the behavior tab inseparability. So, every will to behavior, you will find here, value change listener, which is same like in both tickets to invalidate once users change the value. It is invoke that function which is written here and you have here a lunchable web listener and return pop up listener lunchable Bob listener wants to use an open there is to a value Bob, before the book is a beer it will invoke a method which we will write it here.

And once this is a selected value and Bob will return it will invoke here. So, this is try to add three function here and back being for each listener. So I will write here v value change listener. Okay, and in the launch popup listener, this is once the user opens the destroy value pop up before the ball is appear it will invoke this method which will be a movie Launch pop up this here it will want you to select the value and return the value in their input list of value it it will invoke this method which is a live we return Bob this Okay, so we defined three listener in St. Louis to value and same like in the tickets to enforce a value change listener you have to sit in order to submit to true. Let's go now to the back beam and you will find three missiles security for listeners.

So this is value change listener we just can rent some tickets to here Okay. So, we can see a Lu v value change listener and the object which will be sent to the listener will have to get a new value same like what Enza in what tickets value changes. For this, let us see here illu v pop up long listener and hear pop up return listener and if you want to know what the available misheard it from this object which will send it to the listener, you can simply Right System Object dot and you can have a look what actually available you will find here, get a return parameter to get a return value. If you want to see the return value, we can print it here. So you can have just a quick look, we can select the return value to have a look in the return value.

So this is the three comma three listener. And as I said before, we really use in recently, so very, we just define this value in our application. But in case in your application need to invoke some code before the board is open, you should write the code here. Or if a user manually change the value without opening the bulb, you can write the value change listener or if you want to run or execute some code once the user finish and select the value, you can write it in systems not. So let us now have a look in this run and have a look on the list of value listeners. Okay, so let's now go to list of value listener tab.

Here our list of value. So this was clearly a look and have a look. So first I need the user wants to use a select enter the value without opening there is a value for example like this, okay, you find here we'll go for value changes and the Brent the internal value. These variations there is not same like in with tickets or in with dates, the users change it or enters the value in the ticket itself. So it will invoke in value change listener value changes. So this is clear assists, and try to just open the pop up just openly exists.

So once the ball is launched, you will find here this value pop up launch list. So, this listener probe launch listener, this listener will be executed once the box is opened. So, let's search and select a value. For example 40 you will find here is a look it is printed value chain. So, this is where the change listener plus editor listener of 40. So, here again once you open some pop up, you execute a launch listener.

So, once you search and select any value, you will find it will call Earth in Bob return value and because of the value is a change it so it will in focus will in value change listen So, just to be sure that if you have value change listener and the return listener, both of them will be executed once as a user select a value. This is three listener, which we sometimes use, if needed. And it is good thing is if you know, aware about this listener, this is a list of value listener. negativity you will go for the last one, which is a benefit box listener. So see you and you can see video