Develop Reference

Hide button when clicked in angular

I have a button that wraps around an input to upload files to my angular app, I want to add a click event to listen for when the button is clicked and hide it, so every time the button is clicked to upload a file it gets hidden because I intend to replace it with a progress bar.
Here is the code I tried :
<div (click)="fileField.click()" (fileDropped)="upload($event)">
<div *ngIf="this.isButtonVisible">
<button
class="button is-primary mt-2"
(click)="this.isButtonVisible = false"
>
<input
type="file"
name="txts"
#fileField
(change)="upload($event.target.files)"
hidden
multiple
/>
Upload
</button></div>
<!-- Progress Bar -->
<div *ngIf="progress">
<div class="progress is-primary form-group">
<div
class="progress-bar progress-bar-striped bg-success"
role="progressbar"
[style.width.%]="progress"
></div>
</div>
</div>
</div>
I get the following error Property 'fileField' does not exist on type 'SourceComponent'. it has to do with the ngIF how do I fix it?
Thank you in advance.

You're right the issue has to do with the *ngIf. One way of fixing the error is by using the hidden directive to hide the div instead:
<div [hidden]="!this.isButtonVisible">
StackBlitz example

Printing a div in HTML with all css applied

I'm making a project in asp.net MVC. I want to print a div with all css styles applied. This div may contain one or more divs inside it. I tried a lot of javascript print codes but each of them failed. The page I want to print looks like this: Click here to view page. I just want to print the area below the input region which contains the details. But the problem is that when I use the javascript print method, my table view suddenly vanishes. This is the print preview that I get: Click here to view the print preview page. I've tried multiple methods but all have failed. Please Help. Thanks in advance. Below are my code files of front end
saleInvoice.cshtml
<script>
function refresher() {
$('#si, .si').load('/TallySet/cart');
};
function printDiv(divID) {
debugger;
var printContents = document.getElementById(divID).innerHTML;
var originalContents = document.body.innerHTML;
document.body.innerHTML = printContents;
window.print();
document.body.innerHTML = originalContents;
};
</script>
<div class="col-lg-12 popblk">
<p>New Sales Invoice</p>
</div>
<div class="col-lg-12" style="background-color:white">
<div class="row">
<div class="col-lg-2">
<p>Customer : </p>
</div>
<div class="col-lg-4">
#Html.DropDownList("customers")
</div>
</div>
<div class="row">
<div class="col-lg-4">
#Html.DropDownList("items")
</div>
<div class="col-lg-4">
#Html.TextBoxFor(x => x.quantity)
</div>
<div class="col-lg-2">
<button value="Add to cart" onclick="addToCart()">Add to cart</button>
</div>
<div class="col-lg-2">
<button value="Refresh" onclick="printDiv('si')">Refresh Cart</button>
</div>
</div>
<div class="row" id="si" style="margin-left:50px;">
#{Html.RenderAction("cart", "TallySet");}
</div>
<div class="row" style="background-image:url('../../viewData/sale_footer.png')">
</div>
<button class="rButtonCancel" value="X" data-dismiss="modal" onclick="listVoider()">X</button>
</div>
cart.cshtml
#model IEnumerable<Fast_Tally_Accounter.Models.salesCart>
<img src="~/viewData/sale_head.png" />
#if(Model!=null)
{
foreach(var v in Model)
{
<div class="row" style="background-image:url('../../viewData/sale_row.png'); background-repeat:no-repeat;margin-left:0px;margin-bottom:0px">
<div class="col-lg-2">
<p>#v.quantity KG</p>
</div>
<div class="col-lg-4">
<p>#v.itemName</p>
</div>
<div class="col-lg-1">
<p>#v.itemPrice</p>
</div>
<div class="col-lg-1">
<p>#v.itemTotal</p>
</div>
</div>
}
}
<div class="row" style="background-image:url('../../viewData/sale_footer.png'); background-repeat:no-repeat; margin-left:0px; height:120px">
<div class="row myRow" style="height:20px; margin-left:536px; margin-bottom:2px; margin-right:0px" id="myRow">
<p>#ViewBag.dt</p>
</div>
<div class="row myRow" style="height:20px; margin-left:536px; margin-bottom:2px; margin-right:0px" id="myRow">
<p>Daniyal humayun</p>
</div>
<div class="row myRow" style="height:20px; margin-left:536px; margin-bottom:10px; margin-right:0px" id="myRow">
<p>#ViewBag.qt</p>
</div>
<div class="row myRow" style="height:20px; margin-left:536px; margin-bottom:0px; margin-right:0px" id="myRow">
<p>#ViewBag.pr</p>
</div>
</div>

There's a number of issues here. First and foremost. You're not actually using a table. Instead, you're using Bootstrap's grid styles to make an approximation of a table. Using an actual HTML table is a better idea, not just for the consistency it provides but also for the sake of accessibility.
Second, the "borders" to your "table" are being applied via background images. While I think Chrome actually gives the user the option to print background images, now, it's not the default, and other browsers will simply ignore background images entirely when printing. Long and short, that approach is doomed to failure.
Third, when printing, you're actually taking the contents of this div and replacing the entire HTML document with that. Importantly, that means any stylesheets and such that were part of the document are thrown away. In particular to your issue here, that would include the Bootstrap stylesheet. This was the way people used to handle printing way back in the day before CSS was even really a thing. Now, there's a much preferable way to handle removing extraneously content from the print. You simply add print-specific styles and hide elements you don't want to print (such as a page header) via that. For example:
#media print {
#Header { display:none; }
}
You can also use this same approach to change styles to improve the print layout. Maybe you want the text to be larger or smaller when printed. You simply add something like body { font-size:12pt; } inside this block.
The only JavaScript you actually need is just window.print(). Your print button calls that, and your print-specific CSS should take over to modify what needs to be modified in the print version.

Hide a specific DIV element that has been dynamically generated

The field Description is optional and only appears when the user clicks on the + Description button. However when another div is generated the code loses the focus of the element it should hide and the button doesn't work anymore.
<script>
$(document).ready(function(e){
$(document).on('click', '#hide-desc', function(e) {
$("#description").slideToggle();
});
});
</script>
I have a button to remove and add the following div:
<div class="item-wrapper">
<div class="item-inner-wrapper">
<!-- Among other stuff -->
<div id="description" class="item-child-desc">
{{ form }}
</div>
</div>
<div class="item-action-button">
<!-- Deletes item-wrapper and another button adds it -->
<a id="delete" href="#" class="button alt small special">Remove</a>
<a id="hide-desc" class="button alt small">+ Description</a>
</div>
</div>
I know the function must be able to identify which description I am talking about, but I don't know how to do that. I tried to get the parent div of the button and specify the div with method find() but I could not make it work.
I have the same problem happening with an autocomplete function. I believe I will get both working if I can figure out what I have to do.

Based on your comments, I assume your html sort of looks like this (note that we use .description rather than #description since those are not unique elements):
<div class="item-wrapper">
<div class="item-action-button">
<a id="delete" href="#" class="button alt small special">Remove</a>
<a id="hide-desc" class="button alt small">+ Description</a>
</div>
<div class="description" class="item-child-desc">
blergh
</div>
</div>
We just have to look for the parent .item-wrapper using e.target to reference the source of the event then search the child .description:
$(e.target).parents(".item-wrapper").find(".description").slideToggle();
Based on the sample html you've added, the following should also work without modification:
$(e.target).parents(".item-wrapper").find(".item-child-desc").slideToggle();
It's also possible to just use this:
$(this).parents(".item-wrapper").find(".item-child-desc").slideToggle();
In all cases, the crucial part is parents(".item-wrapper").

I'm not entirely certain of the question, but if my understanding is correct I believe I may have found a solution for you. Using jQuery Event Delegation, it's relatively simple!
Run this code snippet and see if I'm close to a solution:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="item-action-button"> Remove
<a class="hide-desc button alt small">+ Description</a>
<div class="item-child-desc">{{ form }}</div>
</div>
<div class="item-action-button"> Remove
<a class="hide-desc button alt small">+ Description</a>
</div>
<div class="item-action-button"> Remove
<a class="hide-desc button alt small">+ Description</a>
<div class="item-child-desc">{{ form }}</div>
</div>
<div class="item-action-button"> Remove
<a class="hide-desc button alt small">+ Description</a>
</div>
<script>
$(document).ready(function (e) {
$(".item-action-button").on('click', '.hide-desc', function (e) {
$(e.delegateTarget).find(".item-child-desc").slideToggle();
});
});
</script>
<style>
.item-child-desc {
display: none;
}
</style>
The problem with using ids for event handling is that they are only ever registered with the last element with that matching id. If you want one event handler for all elements of a certain type, register an event handler with elements of a certain class or tag. You'd be doing yourself a disservice otherwise.
Hope this helps!

How to hide Bootstrap textbox toggle on load

I have a couple of dynamically created buttons with toggle boxes below it that are created like so.
HTML
<button type="button" class="accordion-toggle btn btn-default btn-small"
data-toggle="collapse" data-parent="#accordion'+this.id+'"
href="#collapseOne'+this.id+'"><i class="icon-info"></i></button>
Here is the textbox collapse it calls to display on click
<div id="accordion'+this.id+'">
<div id="collapseOne'+this.id+'" class="collapse" style="height: auto;">
<div class="control-group control-group-notes">
<button onclick="clearMsgBox(\''+this.id+'\')" type="button" class="close" data-toggle="collapse" data-parent="#accordion'+this.id+'" href="#collapseOne'+this.id+'">x</button>
<textarea id="doGet'+this.id+'" style="width: 92%;" rows="2" placeholder="Message..."></textarea>
</div>
</div>
</div>
The button and boxes are dynamically created and works fine. The only issue I can't seem to figure out is that on load all the boxes are open and not hidden. But once I click the x button it toggles to hide just fine.
Could anyone help me out? Thank you in advance.

In bootstrap the class="in" determines the visibility of your accordion and it's probably present on all of them when it loads.
class="panel-collapse collapse in"
For those you do not want to show onload remove the "in" class.

Solved!
If anyone wants to the know what was causing it.
As stated above in class needed to be removed. also there was a height auto that needed be removed.
code as follows.
<div id="accordion'+this.id+'">
<div id="collapseOne'+this.id+'" class="collapse">
<div class="control-group control-group-notes">
<button onclick="clearMsgBox(\''+this.id+'\')" type="button" class="close" data-toggle="collapse" data-parent="#accordion'+this.id+'" href="#collapseOne'+this.id+'">x</button>
<textarea id="doGet'+this.id+'" style="width: 92%;" rows="2" placeholder="Message..."></textarea>
</div>
</div>
</div>

If you want your div to be hidden on load, you can try to set: "display:hidden;" in your CSS for this div. Then the toggle function will show it on click by changing the display attribute. (at least this is how it works with jquery)

How do i get boxes to have equal width always

Here i have to boxes, it looks like this
<div class="dataViewBox">
<div class="dataViewBox-Download">
<div class="dataViewBox-DownloadLink">
<span class="dataViewBox-Hashes"></span>
</div>
<div id="testblock0h" class="dataViewBox-HideShowButton" onclick="magicmushrooms('testblock0')">Show</div>
<div class="dataViewBox-Name">SomeName</div>
</div>
<div id="testblock0" class="dataViewBox-BottomBorder">
<div id="test0" class="dataViewBox-Data toggleable Text">
<span>this is just a test to show the the box can expand and be alot more bigger then it first was</span>
</div>
</div>
</div>
<div class="infoViewExpirein">
<div id="infoViewExpireinTime">Build this up to be bigger then the box................................</div>
</div>
<div class="dataViewBox">
<div class="dataViewBox-Download">
<div class="dataViewBox-DownloadLink">
<span class="dataViewBox-Hashes"></span>
</div>
<div id="testblock1h" class="dataViewBox-HideShowButton" onclick="magicmushrooms('testblock1')">Show</div>
<div class="dataViewBox-Name">SomeName</div>
</div>
<div id="testblock1" class="dataViewBox-BottomBorder">
<div id="test1" class="dataViewBox-Data toggleable Text">
<span>See how this box fallows the other one when you open it, and same when you close it, it always has equal width</span>
</div>
</div>
</div>
<div class="infoViewExpirein">
<div id="infoViewExpireinTime">Build this up to be bigger then the box................................</div>
</div>
All the code is too much to post here, but I have two boxes, the code works as it is now but the thing is that I do not like how I have solved this problem, if you open one box and you'll see at the other comes free with and the same size, it's the idea that it should be so. So all elements on the page is always symmetric. Its just that it only works if you have "display: table" in body. And i try to find another way to do this whit same results, its always hard when you try to get equal width on everything, But the way to do it CSS/JavaScript does not matter
Link: JsFiddle
/ Slaktarn

All you need to do is to add a max-width parameter to whatever elements you want to limit in size.
body {
...
display: block;
max-width: 450px;
}