What Is the Lifecycle of a Control in SAP UI5?

All the lifecycle snares of a SAP UI5 control are must not be called by the application legitimately. The SAP UI5 structure calls the strategies. All the work is accomplished for you.

Here is the thing that the lifecycle of a controller is. in SAP UI5 And here is in what request an application executes in SAP UI5.

The lifecycle snare techniques for a SAP UI5 control are and in this manner the lifecycle is:

init: Called while the constructor of the component of the control is executed. Instatement of the control. This is an acquired strategy for the what is the full meaning of erp in sap component parent of the control.

onBeforeRendering: Befor the rendering of the control is begun. Called before each rendering or rerendering. This is a technique for the control.

onAfterRendering: After the rendering of the control is finished. Called after each rendering or rerendering. This is a strategy for the control.

exit: Called after the demolish of the component of the control is executed. Tidies up the control occurrence before devastation. This is an acquired strategy for the component parent of the control.

What Is the Lifecycle of a Controller in SAP UI5?

A SAP UI5 controller gives lifecycle snares. Those snares base on the lifecycle of the controller’s view. A view instantiates before a controller.

application summons a view

instantiate the view and its controller

load controller

onInit snare (see is instantiated and view’s controls are made)

onBeforeRendering snare (see is re-rendered)

onAfterRendering snare (see is rendered)

onExit snare (see is annihilated)

controller is annihilated

For instance, put a funtion into the onAfterRendering methoid to conjure the capacity each time when the perspective on the controller is rendered:

sap.ui.define([

“sap/ui/center/mvc/Controller”

], function(Controller) {

“utilize severe”;

return Controller.extend(function() {

/snare gets conjured when the view is rendered

onAfterRendering: work() {

this._console();

},

_console: work() {

console.log(“foo bar”);/foo bar

}

});

How to Filter with OR AND Conditions in SAP UI5?

it is disclosed how to channel with at least two qualities in SAP UI5. Be that as it may, how to consolidate those channel with either an AND or an OR condition?

For instance, a rundown contains two things. Thing 1 has as esteem 1 = foo1 and as esteem 2 = bar1. Thing 2 has as esteem 1 = foo2 and as esteem 2 = bar2. There is a channel with the condition CONTAINS for esteem 1 and a channel for esteem 2 of the things.

With an OR condition between the channels and a question of f the outcome would be thing 1 and thing 2. Since in thing 1 is f in foo1 that is esteem 1. Due to the OR condition is esteem 2 not important to be a match. Same goes for thing 2.

With an AND condition and a similar question the outcome would be unfilled. Since in thing 1 is f in foo1 that is esteem 1. Be that as it may, not in esteem 2. In light of the AND condition is esteem 2 important to be a match. Same goes for thing 2.

Make Keys for CRUD Statements

On the off chance that you complete a CRUD activity with an OData Model in SAP UI5 then create a key for the task. For instance, for a read activity. The point is to peruse a component which has the essential keys foo and bar:

/controller

/without key age

/set way with essential keys in a String

var sPath = “/Products(ProductID1=’foo’,ProductID2=’bar’)”;

/get model

var oModel = this.getView().getModel();

/read the item with the essential keys foo and bar

oModel.read(sPath, {

achievement: function(oData) { sap.base.Log.info(oData); },

blunder: function(oData) { sap.base.Log.info(oData); }

});

This works. Be that as it may, has a few disservices in contrast with a key age:

/controller

/with key age

/get model

var oModel = this.getView().getModel();

/make essential keys with key age

var sPath = oModel.createKey(“/Products”, {

ProductID1: “foo”,

ProductID2: “bar”

});

/read the item with the essential keys foo and bar

oModel.read(sPath, {

achievement: function(oData) { sap.base.Log.info(oData); },

mistake: function(oData) { sap.base.Log.info(oData); }

});

To utilize the key age has those points of interest:

The key gets organized naturally. The key gets organized into the correct organization of the essential key indicated in the OData administration. For instance, if the key is expressed as 0 yet in the OData administration the key is indicated as a Boolean then the 0 gets consequently designed to false.

On the off chance that there is more than one key, at that point the keys get adjusted in the right request. For instance, there is a PrimaryKey1 and a PrimaryKey2. On the off chance that those get stirred up in the wrong request in a way as a String as in the main code test then the read solicitation comes up short. Be that as it may, the key age deals with the correct request. In the event that the request of the keys is stirred up in the key age as in the second code test then the key age sorts it out. The key get adjusted organized appropriately and the read solicitation succeeds.

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