|
JavaScript - Read Server Csv File Into Drop Down Box
I am wanting to setup a dependant drop down where when a user clicks on the first drop down, it changes the contents of the second. The way I intend to do this is via a csv file. I have found several scripts but I have been unable to get them to work.
Two of which a http://answers.yahoo.com/question/in...3114347AA7GYJ7 http://purbayubudi.wordpress.com/200...ng-javascript/ The first is the better option from what I can see. but the problem is readyState seems to be always 1. I am wondering if someone could perhaps give me a few moments to see if I can get this to work or suggest a better solution. I don't want to use a database approach, at least not yet. Similar Tutorialscan I use js to read info (e.g. getElementById('p')) from other web page stored under the same directory of the current webpage? how? e.g. on this website www.mywebsite.com/home.htm, how to use js to read tag 'p' info from www.mywebsite.com/child1.htm ? thx in advance I have the following JavaScript (see below). The script requests an XML file from the server and displays it on the page. The script works fine when the requested XML file is stored on the same server as the script. The problem is when I try requesting an XML file from an external server such as the National Weather Service. I get an error. If I take the XML file from the National Weather Service and save it to my server it works. Why can't I use my script to request XML files stored on external servers? Thanks in advance for any help. Javascript Code Code: window.onload = initAll;
var xhr = false;
function initAll() {
document.getElementById("makeTextRequest").onclick = getNewFile;
document.getElementById("makeXMLRequest").onclick = getNewFile;
}
function getNewFile() {
makeRequest(this.href);
return false;
}
function makeRequest(url) {
if (window.XMLHttpRequest) {
xhr = new XMLHttpRequest();
}
else {
if (window.ActiveXObject) {
try {
xhr = new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e) { }
}
}
if (xhr) {
xhr.onreadystatechange = showContents;
xhr.open("GET", url, true);
xhr.send(null);
}
else {
document.getElementById("updateArea").innerHTML = "Sorry, but I couldn't create an XMLHttpRequest";
}
}
function showContents() {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
if (xhr.responseXML && xhr.responseXML.contentType=="text/xml") {
var outMsg = xhr.responseXML.getElementsByTagName("choices")[0].textContent;
}
else {
var outMsg = xhr.responseText;
}
}
else {
var outMsg = "There was a problem with the request " + xhr.status;
}
document.getElementById("updateArea").innerHTML = outMsg;
}
}
HTML Code Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>My First Ajax Script</title> <script type="text/javascript" src="script01.js"></script> </head> <body> <p><a id="makeXMLRequest" href="http://www.weather.gov/xml/current_obs/KOJC.xml">Request an XML file</a></p> <div id="updateArea"> </div> </body> </html> I want to use a <select> drop-down in a form to let my user select a date from a list. The problem is how to easily update the list. Easiest would be to have a list of dates in a separate file, and have code that would read the dates and write them into the <option> statements of the <select> control. Then when the page with the <select> control opens, the code will open the other file, get the dates, and update the <option>s. And all I have to do is periodically FTP a new date file. I'm stuck in Visual Basic and FileSystemObject, where I can open a file, read line by line into an array, concatenate a string, and write it into a doc. I can't seem to find similar methods in JavaScript - no duh, because this isn't VB! So _is_ there a way to do this? Maybe a certain way to create the date file so the code can easily find the values? (Like putting the dates into a table with each <TD> having a unique ID?) And assuming I manage to get the dates, I need to write them into the source HTML, vice in the document body. What objects, methods, properties do I look at? Are there any samples floating around out there? A drop-kick in a good direction is greatly appreciated! Ed hi, i have looked all over the internet but i can't find anything that works. All i want to do is simply read from a text file. Thanks hi i m creating a webpage using javascript and php where i need to upload a doc file or zip and read all the words in doc file if it is zip i need to read all the words in all the doc files. i m trying to upload using file input but it does not show path of file only file name how i m suppose to upload and read it. Ok, I am currently working on an announcements portlet for a dashboard that my team is creating. What is desired is to be able to have this portlet access a stored text file (file can be edited so content is subject to change) that will have all the information needed for these announcements. The JavaScript will then write it into a html file. I am a novice at html, and javascript; and i was hoping that if anyone had any advice, ideas, or a helpful link that could point me in the right direction I would much appreciate it. I use a PHP page to set elements of a text file on our web server and I want to create a javascript function to intermitently check the contents of that file and if an element in that file matches a criteria I want to act on it... So, I do this <script type="text/javascript"> t = setInterval("CHECKFILE()",5000); </script> This calls the CHECKFILE function every 5000ms <script type="text/javascript"> function CHECKFILE(){ } </script> How, in the CHECKFILE function can I read from a file called FILE.txt for example?? In PHP I can use $myFile = "FILE.txt"; $theData = file($myFile); And this gives me an array, with each element containing one line from the file Can I do similar in Javascript? Or can I add PHP into the JS to do it for me? Thanks Hi, i need to read a files contents to an array so that i can check which lines of the file i need to write back. im not very good with arrays and haven't had any luck so far. thanks for some reason I am unable to read the file contents, or it could be something else, I added in some extra code to see where the script got to and I only get to see '1' on the output. Is there something else I have missed ? I am wanting to ready each line one by one and replace a phrase with another, then output the new line. I visit the 1.txt file in my browser and the file shows fine. var txtFile = new XMLHttpRequest(); txtFile.open("GET", "http://mysite.com/convertJS/1.txt", true); txtFile.onreadystatechange = function() { document.write("1<br>"); if (txtFile.readyState === 4) { // document is ready to parse. document.write("2<br>"); if (txtFile.status === 200) { // file is found document.write("3<br>"); allText = txtFile.responseText; lines = txtFile.responseText.split("\n"); document.write(lines + "<br>"); // I shall be altering the text in each line, search and replace, so only need to be able to read one line at a time. } } } txtFile.send(null); // close file. sorry that i used the quote method to post, but when i used [ code ] it corupted the text as the document . write lines?! I am having trouble with JavaScript code and do not know why it is not working. I have the code I think is right but it is not showing up in my browser when run. Any ideas? Also are there any other ways to read in an xml file using javascript? please list if so. Hi, i have a question, is JavaScript can read an external file? i have an ear file, can it read external file without the external file compile together in the ear file? can we do so? Hi guys, here again with another question. I would parse a file, my js read fine an html file, but this one is an export from msword. I don't know if this is the problem. I can't change the file. here is how my js read: Code: <body>
<input type='button' value='Load' onclick="doLoad()" />
<script type='text/javascript'>
/* THIS IS THE FILE TO READ */
var fileToRead="test.html";
/* THIS FUNCTION IS TO READ THE HTML FILE */
function IO(U) {//LA MOD String Version. A tiny ajax library. by, DanDavis
var X = !window.XMLHttpRequest ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest();
X.open('GET', U, false );
X.setRequestHeader('Content-Type', 'text/html')
X.send('');
return X.responseXML;}
function doLoad(){
/* HERE IS THE CALL TO READ THE FILE */
var orari=(IO(fileToRead));
var arrTR=orari.getElementsByTagName('tr');
var arrTD_3nd_line=arrTR[1].getElementsByTagName('td');
var arr_p_1c_3l=arrTD_3nd_line[0].getElementsByTagName('p');
alert(arr_p_1c_3l[0].nodeValue);
}
</script>
and here is a snip of the html i read: Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta name="ProgId" content="Word.Document">
<meta name="Generator" content="Microsoft Word 10">
<meta name="Originator" content="Microsoft Word 10">
<link rel="File-List" href="orarioinvernale_file/filelist.xml">
<title>ORARI </title>
<!--[if gte mso 9]><xml>
<o:DocumentProperties>
<o:Author>Ufficio Stampa</o:Author>
<o:Template>Normal</o:Template>
<o:LastAuthor>Ufficio Stampa</o:LastAuthor>
<o:Revision>4</o:Revision>
<o:TotalTime>1</o:TotalTime>
<o:Created>2005-11-28T12:25:00Z</o:Created>
<o:LastSaved>2006-01-13T10:24:00Z</o:LastSaved>
<o:Pages>1</o:Pages>
<o:Words>762</o:Words>
<o:Characters>4344</o:Characters>
<o:Company>mycomp</o:Company>
<o:Lines>36</o:Lines>
<o:Paragraphs>10</o:Paragraphs>
<o:CharactersWithSpaces>5096</o:CharactersWithSpaces>
<o:Version>10.2625</o:Version>
</o:DocumentProperties>
</xml><![endif]--><!--[if gte mso 9]><xml>
<w:WordDocument>
<w:SpellingState>Clean</w:SpellingState>
<w:GrammarState>Clean</w:GrammarState>
<w:HyphenationZone>14</w:HyphenationZone>
<w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
</w:WordDocument>
</xml><![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Comic Sans MS";
panose-1:3 15 7 2 3 3 2 2 2 4;
mso-font-charset:0;
mso-generic-font-family:script;
mso-font-pitch:variable;
mso-font-signatu 647 0 0 0 159 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-parent:"";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";}
p
{mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";}
span.SpellE
{mso-style-name:"";
mso-spl-e:yes;}
span.GramE
{mso-style-name:"";
mso-gram-e:yes;}
@page Section1
{size:595.3pt 841.9pt;
margin:70.85pt 2.0cm 2.0cm 2.0cm;
mso-header-margin:35.4pt;
mso-footer-margin:35.4pt;
mso-paper-source:0;}
div.Section1
{page:Section1;}
-->
</style><!--[if gte mso 10]>
<style>
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Tabella normale";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";}
</style>
<![endif]-->
<meta http-equiv="Content-Language" content="it">
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="4098"/>
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1"/>
</o:shapelayout></xml><![endif]-->
</head>
<body style="" bgcolor="#ccffff" lang="IT">
<div class="Section1">
<div style="text-align: center;">
</div>
<table class="MsoNormalTable" style="width: 100%;" border="1" cellpadding="0" height="1733" width="100%">
<tbody>
<tr style="height: 75.75pt;">
.... and so on.... the problem is that my error console (from firefox) when i click my read button (not when i load the page) gives me errors: Code: sintax error: source: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> if i comment this it give me: Code: missing tag </meta>
source:
</head>
and if i put Code: </meta> another meta is required and so on. But i can't modify the source i read, so is there a way to read this file? Many thanks Backit Hi, I have created a global navigation includes document. Unfortunately the drop down menus that are part of the navigation aren't working. They worked fine when they were part of the page, but now that they are separated from the page as includes the drop down menus don't appear in my test site (posted to a web server). All other content in the includes file appears and works. Any ideas? Thanks for your help. Hi, I am trying to access an XML file from a server in my JavaScript code. I have an XML file like this: -<stream version="1.2"> -<room id="simulator" time="128168557915"> -<dimention id=0 x="1.25" y="2.00"> <m mcu="160" sid="75"> </dimention> </room> -<room id="simulator" time="128168557928"> -<dimention id=0 x="1.95" y="1.86"> <m mcu="160" sid="55"> </dimention> </room> </stream> this file is generated by an application and I can access it from a URL ( since I am using the simulator for this application the XML is accessible from http://localhost:8081/feed/demo) This xml file is updated every few seconds and constantly growing. I have a javascript code which I've added the following code to it in order to use the data from XML file: <script type="text/javascript"> if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.open("GET","http://localhost:8081/feed/demo",false); xmlhttp.send(); xmlDoc=xmlhttp.responseXML; document.write("<table border='1'>"); var x=xmlDoc.getElementsByTagName("room"); for (i=0;i<x.length;i++) { document.write("<tr><td>"); document.write(xmlDoc.getElementsByTagName("dimention")[i].getAttribute("x")); document.write("</td><td>"); } document.write("</table>"); </script> Now here comes my problem: if I have the XML file saved on same drive as html page and I address it like this: xmlhttp.open("GET","floor.xml",false); it works fine, but when I pass the URL it doesn't. is there anything else I should do in case of loading the xml from URL? my second question is that I want to use the text values returned by xmlDoc.getElementsByTagName("dimention")[i].getAttribute("x") in an if statement like this : if (valuereturned = 2.00) { do sth } what is the best way to do that, since the returned value is a text. I need the answer ASAP and I really appreciate your help, thanx :-) Dear friend , I am uploading text file on html page , that text file lies on desktop and getting updated at every hour . I will keep my html page on server so how will it upload that text file from my desktop ? it is being generated by one cloud sensor . So, this is my last problem. If I can nail this, then the website will be completely AJAX driven, and will be spectacular. It took me a while to figure out just how to ask the question. lol Now it is really simple. 1) When I hit the button, in the simplified example below, the website sends a code to the server. 2) The server then re-writes the "xyz.js" JavaScript file with a new array of values. Is there any way to re-retrieve that JavaScript file, from the server to make it the current "xyz.js" rather than the old one that loaded on the client originally. I can get a new XML data file and re-submit that to the website, but how do I re-retrieve the new JavaScript code? Code: <html> <head> <script src="xyz.js" type="text/javascript"></script> </head> <body> <button onclick="onload();">Change</button> </body> </html> I'm attempting to pull the hidden iframe file upload trick using javascript. I've go my form file upload and iframe fine, but I can't figure out what to do when it gets server side. There seems to be relatively no documentation on how to handle uploaded files in server-side javascript. Ideas? I'm at a loss.
Hello, Is there a way using javascript to have it check if a file exists on the server? I'm trying to check for a file on my server without having to refresh the open webpage. If this can't be done with javascript, do you know which webpage languange can execute this? Thanks well i'm kind of new to this website and scripting with javascript but i am wondering: in a client side .js file i have some coding which results in a string which is stored in a variable called exportData now i want that string to be written into a text file on a server but how do i do that? it is not local on the client's pc and i can't find how to do it anywhere... can you guys help me? greetings, Fady Hi there, I have a photo editing business with many people working in Photoshop. I am currently developing a web based application (joblist) using Javascript and PHP which should allow the photoshop designers to browse and open files/images directly from joblist/web browser into photoshop. The reason I want this instead of browsing folder is that I have a database where I store who worked on which file, when and how long it took. The concept is that, designers will select a file and click on start, as soon as they click on start the original file will open in Photoshop and there will be an entry into database (using PHP). Once they finish the task they will close the file and click on Finish button. My joblist application will be published in a local server and the file will be open on a local network, so when they save the file it will be saved where the source file is located in (local server). The application should work in both PC and Mac. Anybody can help me to write the code (PHP or Javascript) which can open the file from browser (local server) directly into desktop application e.g. PHotoshop or Illustrator? Thank you very much I look forward to someone's real help! Best regards Mr. Sumon www.clippingpathindia.com |
|||||||