<title>Adding/Removing Event Markers Dynamically</title>
		<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
		<script type="text/javascript" language="javascript" src="./../js/AnyChartStock.js?v=1.9.0r9317"></script>
		<!-- chart size settings -->
		<style type="text/css">
			#chartContainer {
				width: 630px;
				height: 520px;
				float: left;
		<script type="text/javascript" language="javascript">
			// Creating new chart object.
			var chart = new AnyChartStock("./../swf/AnyChartStock.swf?v=1.9.0r9317", "./../swf/Preloader.swf?v=1.9.0r9317");
			// Setting XML config file.
			// Writing the flash object into the page DOM.
			// Create two auxiliary objects to store information about last 
			// added A group event marker
			var groupALastInfo = {
				date: new Date(Date.UTC(1999,10,1)),
				index: 0
			// And the same for B group
			var groupBLastInfo = {
				date: new Date(Date.UTC(1999,10,1)),
				index: 0
			// Auxiliary date increment function
			function increaseDate(date) {
				date.setUTCMonth(date.getUTCMonth() + 3);
			// Auxiliary date decrement function
			function decreaseDate(date) {
				date.setUTCMonth(date.getUTCMonth() - 3);
			// Auxiliary function to enable/disable buttons
			function updateButtons() {
				if (groupALastInfo.index == 0) {
					document.getElementById("btnRemoveLastA").setAttribute("disabled", "disabled");
					document.getElementById("btnRemoveAllA").setAttribute("disabled", "disabled");
				}else {
				if (groupBLastInfo.index == 0) {
					document.getElementById("btnRemoveLastB").setAttribute("disabled", "disabled");
					document.getElementById("btnRemoveAllB").setAttribute("disabled", "disabled");
				}else {
			//					Adding event markers
				Function to add event marker to the group
				groupId {String} id of the group, in which event marker is added
				lastInfo {Object} link to the object with the last event marker added
				labelPrefix {String} prefix of the event markers caption (for example for "A0" prefix is "A")
				color: {String} color of the event markers text
			function addEventMarker(groupId, lastInfo, labelPrefix, color) {
				chart.addEventMarker(groupId, {
					date: lastInfo.date, // date is passed as string and formatted according to event markers input locale from config.xml
					format: labelPrefix + lastInfo.index.toString(), // format: prefix + index (for example "A0") it is shown in caption
					id: lastInfo.index.toString(),	// unique (in group) id of event marker. If needed for later interaction with event marker
					settings: {
						font: {
							color: color,
							size: 10
					attributes: {
						markerCaption: labelPrefix + lastInfo.index.toString() // custom attribute, which is displayed in event markers tooltip
				// apply the changes
				if (chart.commitEventMarkersChanges()) { // if successful...
					// update information about last marker
					// update the buttons state
			function addEventMarkerToGroupA() {
				// adding marker to A group. See addEventMarker reference for more. @see addEventMarker
				addEventMarker("idEventMarkersGroupA", groupALastInfo, "A", "#A80027");
			function addEventMarkerToGroupB() {
				// adding marker to B group. See addEventMarker reference for more. @see addEventMarker
				addEventMarker("idEventMarkersGroupB", groupBLastInfo, "B", "#0027A8");
			//					Removal of the last event marker
				Function to remove event marker from the group
				groupId {String} id if the group
				lastInfo {Object} link to the object with information about the last event marker
			function removeLastEventMarker(groupId, lastInfo) {
				var lastId = lastInfo.index-1;
				if (lastId < 0) return;
				// Remove event marker by its id and group id. See removeEventMarker reference for more. @see removeEventMarker
				chart.removeEventMarker(groupId, lastId);
				// Apply changes
				if (chart.commitEventMarkersChanges()) { // if successful...
					// Update information about the last added event marker. Now it's next to last.
					// Update buttons state
			function removeLastEventMarkerFromGroupA() {
				// Remove of the last event marker from A group.  See removeLastEventMarker
				removeLastEventMarker("idEventMarkersGroupA", groupALastInfo);
			function removeLastEventMarkerFromGroupB() {
				// Remove of the last event marker from B group.  See removeLastEventMarker
				removeLastEventMarker("idEventMarkersGroupB", groupBLastInfo);
			//					Removal of all event markers
				Function to remove all event markers from the group
				groupId {String} id of the group
				lastInfo {Object} link to the object with information about last event marker
			function removeAllEvetMarkers(groupId, lastInfo) {
				We know id of the last event marker and this id is set using simple increment, 
				so we just go by id from 0 to lastInfo.index
				for (var i = 0;i<lastInfo.index;i++)
					chart.removeEventMarker(groupId, i.toString());
				// Apply changes
				if (chart.commitEventMarkersChanges()) {// if successful...
					// Reset info about last event marker, to start adding new from the beginning
					lastInfo.index = 0;
					lastInfo.date = new Date(Date.UTC(1999,10,1));
					// Update buttons states

			function removeAllEventMarkersFromGroupA() {
				// remove all markers from A group. See removeAllEventMarker
				removeAllEvetMarkers("idEventMarkersGroupA", groupALastInfo);
			function removeAllEventMarkersFromGroupB() {
				// remove all markers from B group. See removeAllEventMarker
				removeAllEvetMarkers("idEventMarkersGroupB", groupBLastInfo);
		<!-- table and other page elements settings -->
		<style type="text/css">
			table input {
				width: 120px;
			table.settings {
				border-style: solid;
				border-width: 1px;
				border-color: #D0CDC9;

			table.settings tr th {
				font:normal 60% Verdana;
				background-color: #DCD9D5;
			table.settings tr td {
				background-color: #F8F4F0;
				font:normal 70% Verdana;
		<div id="chartContainer"><!-- Chart Container --></div>
		<table class="settings">
				<th>Group A</th>
				<th>Group B</th>
				<td><input type="button" value="Add New" onclick="addEventMarkerToGroupA()"/></td>
				<td><input type="button" value="Add New" onclick="addEventMarkerToGroupB()"/></td>
				<td><input id="btnRemoveLastA" type="button" disabled="disabled" value="Remove Last" onclick="removeLastEventMarkerFromGroupA()" /><br /></td>
				<td><input id="btnRemoveLastB" type="button" disabled="disabled" value="Remove Last" onclick="removeLastEventMarkerFromGroupB()" /><br /></td>
				<td><input id="btnRemoveAllA" type="button" disabled="disabled" value="Remove All" onclick="removeAllEventMarkersFromGroupA()" /><br /></td>
				<td><input id="btnRemoveAllB" type="button" disabled="disabled" value="Remove All" onclick="removeAllEventMarkersFromGroupB()" /><br /></td>

Sample Description

How to use this sample?

In this sample you can add and remove markers to/from two groups clicking on "Add" and "Remove" buttons. Also, all added markers can be removed using "Remove all" buttons.

to top

How it works

Event markers addings and removings are executed through addEventMarker and removeEventMarker methods. Changes in event markers are commited by commitEventMarkersChanges method call.

You can read more about event markers in Event Markers section.

to top

AnyChartStock JavaScript API

This sample uses the following methods, properties and events from AnyChartStock JavaScript API:

Item Type Description
addEventMarker Method Adds new event marker to the specified group.
commitEventMarkersChanges Method Commits all changes made to event markers by addEventMarker(), removeEventMarker(), addEventMarkerGroup(), removeEventMarkerGroup() method calls.
removeEventMarker Method Removes event marker.
setXMLFile Method Sets chart XML configuration file path.
write Method Adds the chart to HTML DOM as a child of the specified container.

to top


This section lists all configuration, data and auxiliary files required for this sample.

Configuration file

CSV files

SWF files

  • AnyChartStock.swf - AnyChart Stock component.
  • Preloader.swf - AnyChart Stock helper component that loads the main component (AnyChartStock.swf) and displays loading progress.

JavaScript Libraries

  • AnyChartStock.js - A JavaScript library that is shipped with AnyChart Stock component. It is used to embed the component into HTML DOM and to comunicate with the Flash part.

to top

The information contained in this website is for general information purposes only. All sample data provided on this site is for demonstration purposes only.

The logos and names of other companies and products mentioned on this site are copyright and/or trademarks of their respective owners.

The content on this site, including news, quotes, data and other information, is provided for your personal information only, and is intended for demonstration purposes only. Content on this site is not appropriate for the purposes of making a decision to carry out a transaction or trade. Nor does it provide any form of advice (investment, tax, legal) amounting to investment advice, or make any recommendations regarding particular financial instruments, investments or products.

In no event AnyChart will be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits arising out of, or in connection with, the use of this website.

This site may point to other Internet sites that may be of interest to you, however AnyChart does not endorse or take responsibility for the content on such other sites

Market data and News provided by and copyright RediNews, Incorporated.