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Firstly , although if one of us go through your project and fix the code for you , to be honest you will not learn anything.
I would advise you to put some effort and understand the code and when you struggle with some errors then we can help you. This way you could learn something and understand about your project.
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I am just wrapping up a HUGE project that took me forever to research and code. There is just one thing keeping it from working properly. An updated div on my website.
I have a div that contains css code that displays a temperature gauge. I have php code that extracts data out of a txt file for the gauge. It works but I have to manually update the whole page or update the whole page in the code. I just need that one div to update every second or so and to reload the txt file before doing so.
I have found lots of javascript/ajax examples but none are explained and none are commented. I just dont seem to understand how they work. I have no javascript experience. Does anyone have a quick example with comments or can explain what is going on in the code?
Thanks to anyone for reading.
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is it possible to put some code snippet for us to look at before we jump on big wagons?
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Member 12634098 wrote: or can explain what is going on in the code?
No, because you haven't posted any.
However, to do something in a web page on a timed basis you can use setTimeout(). W3Schools.com does a good job of explaining and showing examples, Window setTimeout() Method[^].
So, you could do something like:
setTimeout("myFunction", 1000);
...
function myFunction(){
}
There are only 10 types of people in the world, those who understand binary and those who don't.
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Hi there, new on this forum and looking for help with some code I found at Cross Browser RDLC Printing - CodeProject. The author didn't include source or demo files and does not reply to my comments either, so I turned to this forum for help.
The author supposedly shows a tip on how to create a print button for rdlc reportviewer for non IE browsers:
...If not, we should create a client-side print icon button on the fly.
How to create one that exactly looks like the original print button?
The answer is so straightforward, by copying the markup for the original button.
Here is what RDLC uses for creating the print icon:
$print = $('<div class=" " style="display:inline-block;
font-family:Verdana;font-size:8pt;vertical-align:top;"><table title="Print">
<tbody><tr><td><input name="ReportViewer1$ctl05$ctl06$ctl00$ctl00$ctl00"
title="Print" style="width: 16px; height: 16px;" type="image"
alt="Print" src="/Reserved.ReportViewerWebControl.axd?
OpType=Resource&Version=11.0.3366.16&
Name=Microsoft.Reporting.WebForms.Icons.Print.gif"></td></tr></tbody
</table></div>');
- Notice that we created a JavaScript object which represents the markup.
This icon must be added to the RDLC viewer toolbar and this is how to find the toolbar object on the client-side:
var findtoolbar = function () {
var $all = $('table div');
for (var i = 0, len = $all.length; i < len; i++) {
if ($($all[i]).css('background-image').toLowerCase().indexOf('toolbar_bk.png') != -1)
return $($all[i]);
}
return null;
}
As you see, there is no solid identification method for the toolbar, so we used a combination of certain properties like background image along with the order of objects in the DOM...
Well he does not show WHERE and HOW to actually add the icon to the toolbar. I tried to do
$(document).ready(function () {
findtoolbar.add($print);
});
and it threw an error (of course?), but with my limited knowledge of javascript and jquery, that's all I could come up with. So I was hoping someone here could help me make some sense out of this  . Thanks in advance.
The perfect woman: cooks good food and never says no in the middle of the night.
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Jaime Premy wrote: with my limited knowledge of javascript and jquery,
The code you have posted is essentially a way to hack a webpage. So, having a limited knowledge or JavaScript is going to make this tough for you, which I suppose you already know.
I suggest putting a breakpoint in the code and then seeing what it does. You're essentially trying to inject your own code into a Microsoft product and trick it into using what you have. In other words, I would be surprised if it worked all the time anyway. It is an unsupported hack.
That article is also 2 years old and browsers have changed a bit since then. Also, the report viewer control I know changes often between versions so make sure you are using version 11, which is what the article says it supports.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Well my problem at this point is really how to add the js generated button to the toolbar. This hack is necessary since ms simply did not update reportviewer for compatibility with modern browsers, not even IE.
The perfect woman: cooks good food and never says no in the middle of the night.
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I believe this code does it,
var findtoolbar = function () {
var $all = $('table div');
for (var i = 0, len = $all.length; i < len; i++) {
if ($($all[i]).css('background-image').toLowerCase().indexOf('toolbar_bk.png') != -1)
return $($all[i]);
}
return null;
}
Like I said, this looks like a hack to inject your own code into existing MS product so there is no guarantee that it will work.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Humm..., this is the code for finding the toolbar. My problem is how to ADD the javascript generated button to the toolbar...
The perfect woman: cooks good food and never says no in the middle of the night.
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Yes, I have understood you every time. What you are not getting is that you need to debug the code. I don't have the answer for you but that person took the time to write an article and I trust that it is correct. So, findtoolbar is code to find the toolbar but if it is in the article it's important for a reason. The $print part looks like it is the actual button. I believe, as I have stated, that findtoolbar is an existing Microsoft function that gets called already. The article, I believe, is hoping that this new findtoolbar function will get called instead of the built-in one and this new one works in chrome and firefox.
There are only 10 types of people in the world, those who understand binary and those who don't.
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I’m learning nodeJS.
I don’t know what is the purpose of
callback argument in
module.exports . It pretty much look like
return and
console.log
here is my code
var request = require('request');
module.exports = function(location,callback) {
var encodedUrl = encodeURIComponent(location);
var url = "http://api.openweathermap.org/data/2.5/weather?q="+encodedUrl+"&APPID=575991c6b55a139d32139652d78bc8b8&units=metric";
if(!location) {
callback("No location provided");
} else {
callback('location is '+location);
}
request({
url: url,
json: true
}, function (error,response, body) {
if(error) {
callback('Unable To Fetch Weather');
} else {
callback("Current Temperature in "+body.name+" "+body.main.temp + '\xB0!!!');
}
});
};
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The purpose of callback is to invoke appropriate callback method based on error and success condition after calling third party api.
rahul
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wanna learn how to create your own site and dashboard where people can contact you and get details and know about you
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I am developing a web upload page in asp.net. Here I am providing interface to select different files as in thisfig.
It works properly. Here I have provided option to remove wrong file selections before uploading. But if I click on second or 3rd button all the selected images(1,2,3) gets deleted from page instead of respective selection.
This is the function I have given to button click,
function attachmentremove()
{
var browse = document.getElementById("FileUpload");
var newbrowse = browse.cloneNode(false);
browse.parentNode.replaceChild(newbrowse, browse);
}
I have given 3 different functions for different button click.
How to solve this error ?
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I am trying to change the webpage background based on the user preferences, they have at the moment 5 background images to choose from.
When they click the background image that they want, the code-behind saves the image to a user preferences table in SQL and also updates the users cookie, when the master page is loaded a call to the cookie is made to get the image.
Public MyBg as string
MyBg = "css/image/" & Request.Cookies("tmr")("bgi")
In Code-Behind Master Page, and On the page I have
<pre lang="Javascript"><script type="text/javascript">
window.onload = function () {
function load() {
$('#content').css('background', '#000 url(' + <%=MyBg %> + ') center');
}
}
</script>
If I view the page source code on a rendered page I can see
<script type="text/javascript">
window.onload = function () {
function load() {
$('#content').css('background', '#000 url(' + css/image/ecb.jpg + ') center');
}
}
</script>
All looks good apart from the fact NO image is in the background, can anyone help with this?
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Well, it doesn't look good. If you check the error console, you'll see an "unterminated string literal" error, because your background path is outside of the Javascript string.
Your onload event handler also declares a nested function to set the background, but never calls it.
Change your code to:
window.onload = function() {
$('#content').css('background', '#000 url(\'<%=MyBg %>\') center');
};
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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 at last it is working, thank-you so much, only spent 4 hours on this simple task.
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Hi, I have been given the task of teaching JS to non-techies.
I think Sublime 3 looks good.
I think JSHint / Gutter linter looks good.
Q1. Are these products easy to use by newbies?
Q2. Does anyone know how these products (Sublime and JSHint) can be installed on a usb drive so that it is truly portable and can be mode from pc to pc or classroom to classroom or home?
Students don't have the ability to install software in campus computers.
Much thanks,
David
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A1. No. It is even more interesting, how a text editor and a style-cop library related to teaching JavaScript to non-tech person!!! Teach them basics of JS, based on some JS tutorial...If you need personal code space use some online tool, like TutorailsPoint's CodingGround or jsFiddle...
A2. It very depends on security policy on the campus, but theoretically, you can load anything from a disk-on-key drive...
Skipper: We'll fix it.
Alex: Fix it? How you gonna fix this?
Skipper: Grit, spit and a whole lotta duct tape.
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I've been working on this for a couple of hours. I have a confirm, and it always returns false no matter which button you click.
I tried it on Windows Firefox, Edge, Chrome, and IOS Safari, Chrome and it works fine.
I ran some test to see if the code is running to the end, but it's not. In VS2015 there are no errors, edge using F12 no errors.
I'm scratching my head on this one.
var _confirm = confirm('Are you sure you want to delete the section ' + _name);
alert(_confirm);
if (confirm) {
}
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If that is your actual code and not just a copy/paste error, your if statement is not testing the _confirm variable (but I would expect that to be true all the time because confirm is a function).
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The code is pretty large in size, but I will post it. It's all on one page or external script file.
I did test it compressed and uncompressed thinking that my gulp script that compresses the script for production use was making an error of some sort.
The only thing that I can think of is a bug in Firefox, but I doubt that!
$(document).ready(function () {
$("#sectionDelete").click(function () {
$("#sectionForm").validate({
ignore: "",
errorClass: 'input-validation-error',
rules: {
Section_DeptID: {
required: true,
minLength: 1
},
Section_SectiontID: {
required: true,
minLength: 1
},
Section_Name: {
required: true,
minLength: 2
},
Section_Desc: {
required: true,
minLength: 2
}
},
messages: {
Section_Name: 'Section requires a name',
Section_Desc: 'Section requires a description'
},
highlight: function (element, errorClass) {
$(element).addClass(errorClass);
},
unhighlight: function (element, errorClass) {
$(element).removeClass(errorClass);
},
success: function (result) {
if (result === "1") {
return true;
}
else {
return false;
}
}
});
if ($("#sectionForm").valid()) {
var deptID = parseInt($("#Section_DeptID").val()),
sectionID = parseInt($("#Section_SectionID").val());
if ((isNaN(deptID) || deptID === -1) && (isNaN(_sectionID) || sectionID === -1)) {
$("#selectSection").text('You must select a section first!').addClass('text-danger');
}
else {
sectionDelete();
}
}<br />
});
});
This is the function that is called from above.
function sectionDelete() {
var $e_Section_DeptID = $("#Section_DeptID"),
$e_Section_SectionID = $("#Section_SectionID"),
$e_Section_Name = $("#Section_Name"),
$e_sContainer = $("#Section_Container"),
_deptID = parseInt($e_Section_DeptID.val()),
_sectionID = parseInt($e_Section_SectionID.val()),
_name = $e_Section_Name.val(),
_confirm = confirm('Are you sure you want to delete the section ' + _name);
if (_confirm === true) {
$e_sContainer.empty().append(pWait);
$.ajax({
type: "POST",
cache: true,
dataType: "json",
url: '/Ajax/json_section_delete',
data: { DeptID: _deptID, SectionID: _sectionID },
error: function (response) {
debugger;
thisObj.toggleClass('active');
alert("http code: " + response.status + " Error: json_sections_load - data: " + response);
},
success: function (data) {
if (data.length === 0) {
$e_sContainer.empty().append(pNull);
}
else {
var sections = '<ul class="nav nav-pills nav-justified">';
for (var x = 0; x < data.length; x++) {
if (data[x].Enabled === true) {
sections += '<li class="col-xs-3" style="width: 33%; float: left; margin: 1% 0;"><button class="section btn btn-success btn-sm" title="' + data[x].Description + '" data-val="1" onclick="sectionRecordLoad(this, ' + data[x].SectionID + '); return false;" type="button">' + data[x].Name + '</button></li>';
}
else {
sections += '<li class="col-xs-3" style="width: 33%; float: left; margin: 1% 0;"><button class="section btn btn-warning btn-sm" title="' + data[x].Description + '" data-val="0" onclick="sectionRecordLoad(this, ' + data[x].SectionID + '); return false;" type="button">' + data[x].Name + '</button></li>';
}
}
sections += '</ul>';
$e_sContainer.empty().append(sections);
}
}
});
}
}
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