Hello, I will continue this video talking about the data control and the page definition. last video I show you what is the data control and what is a page information and how you will be able to know this data or this attribute this block of the four boys into which model view you can know it using big definition by selecting the union attribute it will go into some iterator and the iterator will one was a traitor and a traitor will point to that view option just right click and the definition it will opens a view object in the model layer. Okay, I will continue talking about the data control. As I said last video if for each a view object you will find two folders one is operation related to this view object second is named the correct area. Once I took about View criteria in the middle layer, hopefully you're still remember this four four view we create some view criteria to filter the data, all view criteria or searchable which you can point it is the name criteria.

So, you can drag it from here to the page to create a searchable age or you can display some view criteria if you filter some data. The last thing I need to talk about it is there some operation not related to any of the view, it is like generic operation can apply for all of this view. What is this operation? It is commit and rollback to save the changes or to rollback such a change that change so this video I will try to Create a new euro and save it and see it in the database and we can delete it on top date and make all this operation as I as you can, as you said in the as you saw in the last video that drags the department as for and like as some operation like tickets to previous first and last, I will add another operation call for the department create insert this to create a new row and insert it in there I traitor so that you will be able to see it.

So we use a created search button to create a new row and I need to delete this row and I want to save and go back to commit just drag and drop to can do anything Of course, you can change the tickets to here like create new department delete can save or can here see cans. If you make you want to make some space between the next previous as you know before we can add some space or here between next to previous answer, create and delete operation you can see the width of this maybe 30 okay so now we have some navigation bottom to navigate between this iterator and we have some operation related to the iterator itself, create and lead to create a new role in the department delete would be delete zero and save and cancel it is as generic as you can see it The boy is a traitor because this is a generic safe and roll back here delete will point to this view and this is not okay.

So let us try to run this okay now I need to create a new department you will press carry new you will find the form become blank, you can insert the department ID the Botwin name, you can select which manager will be and you can select any location you want. And after you do that, of course, if you go here is the database is still this department is not here because you didn't commit the changes you will not find here 77 departments even server so here I will press safe Done. So if you come here and refresh, you should be able to see department 77 here my department as a manager and location. So now I am able to create a new role in the table is a database. Okay if you want to make some update, you can update like my report meant like this.

Okay there you go. Last reviews that is our draw Even it is not safe it is still it's the value is here. Okay. So the department 77 will be still exist even I make next and previous and all this kind of stuff, but still will be still exists. Here was the value which all updated. So, if I for example, make cancel this change will we will do it will be maybe in we can split as a table so it will be easy for us to see it but as you can see, because of you Bruce canceled the change of the department name is canceled if you right here my department here right exists if you want to change any of other information like this and press save.

So, now it should be updated to the new new one new value. So, this is a abrasion create if you want to delete it, you can delete it, but see if you delete this row, now it is deleted from the iterator itself is returned from this iterator, but it doesn't mean it is deleted from the database. So it is still exists still civilizations exists however, it is deleted from here from this iterate or you will not be able to see this 77 anymore because deleted from the iterator but not deleted from the database. So it means if you bris cancel, you will find it here again or if you receive it is physically will delete it from the department. So if you press save now, you will find it is gone from the database. So this is a Create delete, save cancel from the data control here and this is operation carried in search for a specific view object from the data controller.

This is all you need to know about the data control operations and bH definition. See you next video.