Adding events to DOM Elements in javascript by For IE, Mozilla, Opera browsers

-
To add events to DOM element Dynamically using javascript needs to write different code for different browsers. Browsers Like Mozilla, Opera support the "W3C DOM Level 2 event binding mechanism"  which uses a function on DOM elements called addEventListener.


 Following the way to  add events to DOM element Dynamically for all browser.


if (window.addEventListener != null)
{ // Method for browsers that support addEventListener, e.g. Firefox, Opera, Safari
window.addEventListener("focus", FocusFunction, true);
window.addEventListener("blur", FocusLostFunction, true);
}
else
{ // e.g. Internet Explorer (also would work on Opera)
window.attachEvent("onfocus", FocusFunction);
document.attachEvent("onfocusout", FocusLostFunction); //focusout only works on document in IE
} 


Hope this will help you guys........

Comments

Post a Comment

Popular posts from this blog

Implement Logging in CSV file using Nlog in .net core MVC application- part 2

-
Image
In previous article " Implement Nlog in .Net core MVC application part 1 "  I have demonstrated how we can implement basic setup of NLog in .core mvc application. In previous article we have logged the exceptions in flat file system. In this article I will show you how you can write the exception and custom logs in csv file. Writing logs in csv file can enable us better readability of logs in tabular form.       Lets start the implementation of it, I going to use the same example project used in previous demonstration. Modify the Nlog.config file as follows, added new target and rule for logging logs in csv file. <?xml version="1.0" encoding="utf-8" ?> <nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.nlog-project.org/schemas/NLog.xsd NLog.xsd" autoReload="true" throwExceptions="fal
Read more

Implement Nlog in .Net core MVC application part 1

-
Image
Logging is a very important part of the enterprise application/web application. Setting up the logging correctly not only beneficial for long term maintenance of the application but also it is useful tool to find out the RCA in case of mission critical bug arises. Therefor we will going to discuss the various logging technique implementation using Nlog library package. In this article we will going to use .net core application for demonstration but you can implement it in .net framework application also. So lets start the implementation of Nlog in .net core MVC application. Open visual studio 2019/17 and create the new project as shown below.     Select Asp.net core Web App (Model-View-Controller) and provide the project name in project name text box.   Now on next screen click on create button this will create MVC app with .net core Now go to solution explorer and right click on project and click on Manage Nuget Package. Now in Nuget package manager install below listed Nlog packages.
Read more

Angular User Session Timeout example step by step

-
Image
This functionality let the user know that their session is about to expire and that they would be logged out if they didn’t take action. I have written this functionality in Angular for my latest application.  If you are new to Angular 6 then read my article about Setting up Angular 6 step by step before jump to this article to get handy in Angular 6. Dealing with timers in Angular can be significantly different when using React components and subscriptions. The basic premises remains the same, though. We’ll have a service with a timer that will provide a Subject to which consumers of the service can subscribe. A React Subject provides an easy mechanism to trigger a “next” subscription to alert consumers that the timer has expired.   import { Injectable } from '@angular/core'; import { Observable, Subject, Subscription, BehaviorSubject} from 'rxjs/Rx'; @Injectable() export class IdleTimeoutService { private _count: number = 0;
Read more

Disable backspace key using Jquery

-
Disable backspace key in HTML form using Jquery in simple steps. While user enters data into application if user accidentally  press backspace button then it will redirect to previous page and all entered data would be lost. to eliminate this event we can disable the backspace key using Jquery. Following is the JQuery script tag you can add to the web page $(document).keydown(function (e) { var nodeName = e.target.nodeName.toLowerCase(); if (e.which === 8) { if ((nodeName === 'input' && e.target.type === 'text') || nodeName === 'textarea') { // do nothing } else { e.preventDefault(); } } }); The above code can be used seamlessly with any web technology you are using. Hope this will help you in your web application. Happy coding:)
Read more

Devexpress Datebox date formatting in angular 6 with example

-
The Devexpress DateBox in Angular is a widget that displays the date and time in one of DevExtreme predefined formats or a format defined in an external localization library, or a type in the required date/time value. In this article, the i will provide you different date-format which we can set on DateBox to show date and time to user. Following is the code snippet to add Datebox in your Angular form if the you want to capture only date      <dx-date-box [value]="now" displayFormat="EEEE, MMM dd" type="date" > </dx-date-box> Following is the custom formats we can set and depending upon its converted values will be shown. "dd-MM-yyyy" => 28-10-2018 "EEEE, MMM dd" => Sunday, Oct 28 "dd MMM yyyy EEEE" => 28 Oct 2018 Sunday "dd-MM-yyyy EEEE" => 28-10-2018 Sunday alternatively you can change the format as way you want Following is
Read more