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How to switch csv dataset of d3.js graph to another csv by clicking on button

By : Milan Bugarski
Date : October 16 2020, 06:10 PM
fixed the issue. Will look into that further Sure it is possible :) You can add two buttons like in the second example to the code from the first example. I'm assuming the csv files are similar and the graphs are the same just the data will be different. You can add more logic if you are looking to have different charts. I've worked out an example to get you started.
code :


  <!-- here are the buttons to control the two csv data sets -->
  <button id="d1">Data 1</button><button id="d2">Data 2</button><br />

  <div id="dashboard"></div>
  <script src="http://d3js.org/d3.v3.min.js"></script>

    // here are the event listeners to control the buttons
    d3.select("#d1").on("click", function(d, i) {
    d3.select("#d2").on("click", function(d, i) {
    function dashboard(id, fData) {
      var barColor = "steelblue";

....continue with all of the code from the first example....
    var freqData;
    function data1() {
      d3.csv("data.csv", function(data) {
        freqData = data.map(function(d) {
          return {
            State: d.State,
            freq: {
              low: +d.low,
              mid: +d.mid,
              high: +d.high
        dashboard("#dashboard", freqData);
    // calls the data1 onload
    //clears the dashboard used in data1 and data2
    function clearDashboard() {
      var myNode = document.getElementById("dashboard");
      while (myNode.firstChild) {
    function data2() {
      d3.csv("./data2.csv", function(data) {
        freqData = data.map(function(d) {
          return {
            State: d.State,
            freq: {
              low: +d.low,
              mid: +d.mid,
              high: +d.high
        dashboard("#dashboard", freqData);

<div id="dashboard1"></div>
<div id="dashboard2"></div>

dashboard("#dashboard1", freqData); 

dashboard("#dashboard2", freqData);
function clearDashboard(dashboard) {
      var myNode = document.getElementById(dashboard);
      while (myNode.firstChild) {



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Unable to switch to another activity after clicking on button

By : Jeyvee Palingcod Bal
Date : March 29 2020, 07:55 AM
will help you You need to add startActivity(i) in the onClick function if not the activity will never start. And you should add it into your Android Manifest too.
Like this:
code :
private class MyOnClickListener implements OnClickListener{
public void onClick(View v)
int id=v.getId();
Intent i=new Intent(Test1Activity.this,Sanjay.class); 
i.putExtra(pass, id);


<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="15" />

android:label="@string/app_name" >
    android:label="@string/app_name" >
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
    android:label="Sanjay Label">


Clicking a button to switch the language

By : Saurabh
Date : March 29 2020, 07:55 AM
may help you . When I click on the "sub_changelang" button, it should change the program language to French for example. I got the following code to change the locale but I have no idea how to refresh/ pdate the app to change the language to French. , I am using this code to set locale
code :
String languageToLoad  = "fr_FR";
     Locale locale = new Locale(languageToLoad); 
     Configuration config = new Configuration();
     config.locale = locale;

Intent intent = new Intent(XYZ.this, XYZ.class);

How to switch to other url, after clicking a button/link using BrowserRouter

By : user3094522
Date : March 29 2020, 07:55 AM

How do I switch Activites/Layouts after clicking a button?

By : Hann
Date : March 29 2020, 07:55 AM
To fix the issue you can do I'm trying to create buttons that will switch to different layouts/activities after clicking them. Can anyone assist? , Use Intent to switch to a different activity .

How can I use Enter Key instead of clicking the button by switch

By : Timo Saloranta
Date : October 08 2020, 08:00 PM
Hope that helps I need to use Enter key to trigger my button. it should call function greetings(). , You have to attach the event to the document:
code :
document.addEventListener("keypress", function(e){
            if (e.key === "Enter"){
              //do your stuff
        }, false);
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