I get all products from database to my Asp.Net Mvc View. So far so good.
I just put textbox in every row with plus and minus buttons and then Ok button to update Quantity in database.
But every Click goes to the first textbox. Here is my code
<table class="table">
<tr>
<th>
Products
</th>
<th>
Quantity
</th>
<th></th>
</tr>
#foreach (var item in Model)
{
<tr>
<td>
#Html.DisplayFor(modelItem => item.Product)
</td>
<td>
#Html.DisplayFor(modelItem => item.Quantity)
</td>
<td>
<input type='text' name='qty#(item.ComputerId)' id='qty#(item.ProductId)'/>
<Button class="btn btn-success btn-xs glyphicon glyphicon-plus" name="add" onclick='javascript: document.getElementById(qty#(item.ProductId)).value++;' value='+' />
<Button class="btn btn-warning btn-xs glyphicon glyphicon-minus" name="subtract" onclick='javascript: subtractQty(qty#(item.ProductId));' value='-' />
<button type="button" class="btn btn-primary" onclick="update();">Ok</button>
</td>
</tr>
}
</table>
And JavaScript is:
function subtractQty(name) {
if (document.getElementById(name).value - 1 < 0)
return;
else
document.getElementById(name).value--;
}
But now I get this Error: Uncaught TypeError: Cannot read property 'value' of null
Hi you can try with the following code:
View Code:
#int tempno=0;
#foreach (var item in Model)
{
<tr>
<td>
#Html.DisplayFor(modelItem => item.Product)
</td>
<td>
#Html.DisplayFor(modelItem => item.Quantity)
</td>
<td>
<input type='text' name='qty#(tempno)' id='qty#(tempno)' />
<Button class="btn btn-success btn-xs glyphicon glyphicon-plus" name="add" onclick='javascript: document.getElementById("qty").value++;' value='+' />
<Button class="btn btn-warning btn-xs glyphicon glyphicon-minus" name="subtract" onclick='javascript: subtractQty();' value='-' /> |
<button type="button" class="btn btn-primary" onclick="update();">Ok</button>
</tr>
#temp++
}
jquery code:
var row = $(this).closest('tr');
var product = row.find('td:eq(0)').text();
var quantity= row.find('td:eq(1)').text();
Hope it will be helpful
Thanks
Karthik
EDIT
Well you're right, your textboxes probably have the same id. So you can start by giving them different ids to uniquely identify each textbox.
#{
int counter = 0;
foreach (var item in Model)
{
<input type='text' name='counter' id='counter' />
<Button class="btn btn-success btn-xs glyphicon glyphicon-plus" onclick='javascript: document.getElementById("counter").value++;' value='+' />
<Button class="btn btn-warning btn-xs glyphicon glyphicon-minus" onclick='javascript: subtractQty(counter);' value='-' />
counter ++;
}
}
Then you have to alter your JavaScript method subtractQty to know which textbox the increment or decrement should be applied to.
I might tweak your method a little to use the approach below:
function subtractQty(textboxId) {
if (document.getElementById(textboxId).value - 1 < 0)
return;
else
document.getElementById(textboxId).value--;
}
You should give unique names and ids for your text box, you can do this through your loop, like appending item id to the qty
like this
<input type='text' name='qty#Item.ID' id='qty#Item.ID' />
note that I assumed that your id field name is ID which is not correct, change it to the name of your field.
then in your javascript function, add one more param which will take the name which is qty#Item.ID, get the element by name using this param and update its value accordingly
<Button class="btn btn-warning btn-xs glyphicon glyphicon-minus" name="subtract" onclick="javascript: subtractQty(#Item.ID);" value='-' />
your js function
function subtractQty(id) {
if (document.getElementById("qty"+id.toString()).value - 1 < 0)
return;
else
document.getElementById("qty"+id.toString()).value--;
}
Related
I have 10 buttons with different values I need to enter the value of the button when is clicked into a text field and after this to send the full text to php file with post How can I do that.
<form class="row" action="Pin.php" method='post'>
<div class="col-xs-8 text-center" style="border-right:solid 3px #CCC">
<h1 class="demo-section-title text-uppercase text-center">Input Your Pin Number</h1>
<input type="text" id="userPinInput" class="form-control" />
<!-- TABLE -->
<div id="pinPad">
<table>
<tr>
<td><input type="button" id="btn1" name="name[]" value="1" class="btn btn-block btn-lg btn-inverse"></input ></td>
<td><input type="button" id="btn2" name="name[]" value="2" class="btn btn-block btn-lg btn-inverse"></input ></td>
<td><input type="button" id="btn3" name="name[]" value="3" class="btn btn-block btn-lg btn-inverse"></input ></td>
</tr>
<tr>
Here is a screenshot
The reason I can't use check boxes is it must look like in the screenshot.
Second I need to send the clicked value to the text area in the screenshot.And I think is more easy to send the value of the check box to php file after I click the numbers
What you have shown in your HTML is lots of textboxes which seemed have been styled to look like buttons using CSS. I don't think this is necessary. You can use regular buttons, which can still have values assigned to them. The markup of your "buttons" is also invalid.
You need to
a) create some valid HTML buttons
b) listen for each button being clicked on
c) when it's clicked, add that the value of the clicked button to the textbox
d) since it's a PIN number, use a "password" field for the textbox
e) get rid of the "name" on the buttons so those values won't be sent to the server
f) give the pin number textbox a name so that value will be sent to the server
Demo:
document.addEventListener('DOMContentLoaded', function() {
var textbox = document.querySelector("#userPinInput");
var pinButtons = document.querySelectorAll(".pinNum");
pinButtons.forEach(function(btn) {
btn.addEventListener("click", function(e) {
textbox.value += this.value;
});
});
});
<link href="https://cdn.jsdelivr.net/npm/bootstrap#3.4.1/dist/css/bootstrap.min.css" rel="stylesheet"/>
<form class="row" action="Pin.php" method='post'>
<div class="col-xs-8 text-center" style="border-right:solid 3px #CCC">
<h1 class="demo-section-title text-uppercase text-center">Input Your Pin Number</h1>
<input type="password" name="pin" id="userPinInput" class="form-control" />
<!-- TABLE -->
<div id="pinPad">
<table>
<tr>
<td><button type="button" id="btn1" value="1" class="pinNum btn btn-block btn-lg btn-inverse">1</button></td>
<td><button type="button" id="btn2" value="2" class="pinNum btn btn-block btn-lg btn-inverse">2</button></td>
<td><button type="button" id="btn3" value="3" class="pinNum btn btn-block btn-lg btn-inverse">3</button></td>
</tr>
<tr>
<td><button type="button" id="btn1" value="4" class="pinNum btn btn-block btn-lg btn-inverse">4</button></td>
<td><button type="button" id="btn2" value="5" class="pinNum btn btn-block btn-lg btn-inverse">5</button></td>
<td><button type="button" id="btn3" value="6" class="pinNum btn btn-block btn-lg btn-inverse">6</button></td>
</tr>
<tr>
<td><button type="button" id="btn1" value="7" class="pinNum btn btn-block btn-lg btn-inverse">7</button></td>
<td><button type="button" id="btn2" value="8" class="pinNum btn btn-block btn-lg btn-inverse">8</button></td>
<td><button type="button" id="btn3" value="9" class="pinNum btn btn-block btn-lg btn-inverse">9</button></td>
</tr>
</table>
</div>
</div>
</form>
The full pin number from the textbox would then be available in the server when the form is submitted, by accessing $_POST["pin"].
I have created a textbox that has a "+" (Add button) and a "-" (delete button) . And when i click on + , i get one more text-box . And when i click on - , i delete that textbox with its value. To capture the value of the text-box , i use ngModel. I tried it without using a Form. Here the issues i am facing are -
[1.]
When i click on '+' button, i get the textbox successfully and i get its value also. But for subsequent additions when done using "+' button, i get the same value . And when i change its value, the value changes on every other text box done using " + " button.
[2.] I don't know how to delete the value of the text-box from the array-variable.
Please help
code -
app.component.html
<div *ngIf="addContainer">
<p style="margin-left: 200px; font-size:18px">Please enter the API
Object -</p>
<table align="center">
<tbody>
<tr >
<td >
<input type="text" placeholder="Enter a Node" [(ngModel)]= "firstValue">
</td>
<td >
<button type="button" style="margin-left: 10px" (click)="addOne(firstValue)" class="btn btn-success"> + </button>
</td>
<td>
<button type="button" style="margin-left: 10px" (click)="deleteOneMore()" class="btn btn-danger"> - </button>
</td>
</tr>
<tr *ngFor="let container of containers; let i = index;" #myElement>
<ng-container >
<td id="1myElement">
<input *ngIf="addMore" type="text" placeholder="Enter a Node" [(ngModel)]= "addedValue">
</td>
<td id="1myElement">
<button type="button" style="margin-left: 10px" (click)="addOneMore($event)" class="btn btn-success"> + </button>
</td>
<td>
<button type="button" style="margin-left: 10px" (click)="deleteOneMore()" class="btn btn-danger"> - </button>
</td>
</ng-container>
</tr>
<tr>
<td style="text-align:center">
<button type="button" (click)="showGraphs(firstValue,addedValue)" class="btn btn-dark">Search</button>
</td>
</tr>
</tbody>
</table>
</div>
app.component.ts
addOne(firstDropdValue) {
console.log("inside addOne = firstDropdValue = ",
firstDropdValue);
this.addMore = true;
this.containers.push(this.containers.length);
}
addOneMore(addedValue)
{
this.moreValues.push(addedValue);
console.log("Inside AddOneMore More Values = ",
this.moreValues);
}
deleteOneMore(){
this.containers.splice(this.index, 1);
}
showGraphs(firstV, addedV) {
console.log("inside showGraphs()");
console.log("firstValue =", firstV, "addedValue = ", addedV);
this.showEwayBill = true;
this.showCollection = true;
this.EwayBill();
this.Collection();
}
Image -
You should maintain an array for the newly added values like below and your add and remove should look like below
values = ["sometext"];
addOneMore() {
this.values.push("sivakumar");
}
deleteOneMore(index) {
this.values.splice(index, 1);
}
In the template file you can use that values or containers array to loop like below
<table>
<tr>
<td>
<input type="" [(ngModel)]='values[0]'>
</td>
<td>
<button type="button" style="margin-left: 10px" (click)="addOneMore(firstValue)" class="btn btn-success"> + </button>
</td>
<td>
<button type="button" style="margin-left: 10px" (click)="deleteOneMore(i)" class="btn btn-danger"> - </button>
</td>
</tr>
<ng-container *ngFor="let value of values; let i = index;">
<tr *ngIf="i > 0">
<td id="1myElement">
<input type="text" placeholder="Enter a Node" [(ngModel)]="values[i]">
</td>
<td id="1myElement">
<button type="button" style="margin-left: 10px" (click)="addOneMore()" class="btn btn-success"> + </button>
</td>
<td>
<button type="button" style="margin-left: 10px" (click)="deleteOneMore(i)" class="btn btn-danger"> - </button>
</td>
</tr>
</ng-container>
</table>
But, in this solution, still there is one issue that, in the textbox, we are allowing to enter one word at a time, I am not able to figure it out the reason, if anyone can, welcoming you to edit the answer ;-)
Working stackblitz is here
This code below performs positioning of rows in the table.
The code below in javascript works perfectly with the input type = "button"
<input type = "button" value = "move up" class = "move up" />
How to make the javascript function below work with button below?
<button type = "submit" class = "btn btn-light" value = "move up">
<span class = "glyphicon glyphicon-hand-up"> </ span>
</button>
Javascript code I'm using right below
$('#mytable input.move').click(function() {
var row = $(this).closest('tr');
if ($(this).hasClass('up'))
row.prev().before(row);
else
row.next().after(row);
});
Code Html
<table class="table" id="mytable">
<tr>
<td>row 1</td>
<td>
<input type="button" value="move up" class="move up" />
<button type="submit" class="btn btn-light" value="move up">
<span class="glyphicon glyphicon-hand-up"></span>
</button>
</td>
<td>
<input type="button" value="move down" class="move down" />
<button type="submit" class="btn btn-light" value="move down">
<span class="glyphicon glyphicon-hand-down"></span>
</button>
</td>
</tr>
<tr>
<td>row 2</td>
<td>
<input type="button" value="move up" class="move up" />
<button type="submit" class="btn btn-light" value="move up">
<span class="glyphicon glyphicon-hand-up"></span>
</button>
</td>
<td>
<input type="button" value="move down" class="move down" />
<button type="submit" class="btn btn-light" value="move down">
<span class="glyphicon glyphicon-hand-down"></span>
</button>
</td>
</tr>
</table>
To make the new markup using a button to do the same as the input does, change the script to this
$('#mytable button.move').click(function() {
var row = $(this).closest('tr');
if ($(this).hasClass('up'))
row.prev().before(row);
else
row.next().after(row);
});
and then add move up to the buttons class
<button type = "submit" class = "btn btn-light move up" value = "move up">
<span class = "glyphicon glyphicon-hand-up"> </ span>
</ button>
If you can't add the classes to the button, use this script and evaluate the button's value attribute instead, to find if to go "up" or "down".
$('#mytable button[value="move up"]').click(function() {
var row = $(this).closest('tr');
if ($(this).val().contains('up'))
row.prev().before(row);
else
row.next().after(row);
});
Note, in the above i used the attribute selector button[value="move up"] to target the the button. One can of course use one of its existing classes as well.
Instead of input.move make the element to button.move since the elemet is a button not an input. Here is the updated JS.
$('#mytable button.move').click(function() {
var row = $(this).closest('tr');
if ($(this).hasClass('up'))//update call here or add to html
class row.prev().before(row);
else row.next().after(row);
});
Observe the comment above update the class there are add up to the buttons class like this...
<button type = "submit" class = "btn btn-light up" value = "move up">
<span class = "glyphicon glyphicon-hand-up"> </ span>
</ button>
In my jQuery code, I want to be able to get the child element within a <tr> element. I have created a jQuery object and named the variable $trElement. However, for some reason calling $trElement.children(".sequence-edit") returns undefined so any further action done on that statement throws an error (since you are invoking a method on an undefined object). I have checked the HTML code of the parent element and it clearly contains a child element with the indicated class name. So why does it not work?
Here is the code I used to debug the issue.
console.log($trElement.html());
console.log($trElement.children(".sequence-edit"));
The first line console.log($trElement.html()); logs:
<td class="sequence-number">#1</td>
<td class="sequence-data">
<form action="editSequence.do" method="POST">
<textarea cols="50" rows="10" name="sequence" class="sequence-data-textarea"></textarea>
<input type="hidden" name="index" value="0">
</form>
</td>
<td class="button-first">
<!-- Element targeting through ".sequence-class" -->
<button type="button" class="btn btn-info sequence-edit center-block display-true">EDIT</button>
<button class="btn btn-info center-block edit-submit display-false" style="display: none;">SUBMIT</button>
</td>
<td class="button-second">
<button type="button" class="btn btn-danger delete-modal-appearance center-block display-true" data-toggle="modal" data-target="#modal-delete-confirmation">DELETE</button>
<button class="btn btn-warning center-block edit-cancel display-false" style="display: none;">CANCEL</button>
</td>
<td>
<input type="checkbox" class="checkbox-delete-selection center-block">
</td>
The second line console.log($trElement.children(".sequence-edit")); logs: undefined
.children() only travels one step into your selector's (trElement) DOM tree, (and those are your <TD>'s, not your <button>).
instead, use .find(".sequence-edit")
https://api.jquery.com/children/
https://api.jquery.com/find/
var $trElement = $("tr");
console.log( $trElement.find(".sequence-edit").html() ); // "EDIT"
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tr>
<td class="sequence-number">#1</td>
<td class="sequence-data">
<form action="editSequence.do" method="POST">
<textarea cols="50" rows="10" name="sequence" class="sequence-data-textarea"></textarea>
<input type="hidden" name="index" value="0">
</form>
</td>
<td class="button-first">
<!-- Element targeting through ".sequence-class" -->
<button type="button" class="btn btn-info sequence-edit center-block display-true">EDIT</button>
<button class="btn btn-info center-block edit-submit display-false" style="display: none;">SUBMIT</button>
</td>
<td class="button-second">
<button type="button" class="btn btn-danger delete-modal-appearance center-block display-true" data-toggle="modal" data-target="#modal-delete-confirmation">DELETE</button>
<button class="btn btn-warning center-block edit-cancel display-false" style="display: none;">CANCEL</button>
</td>
<td>
<input type="checkbox" class="checkbox-delete-selection center-block">
</td>
</tr>
</table>
I've created a modal window, containing a table with rows of input boxes and buttons:
<table class="datatable tablesort selectable paginate full" width="100%">
<tbody>
<tr id="row_1">
<td><strong><input type="text" value="120040965" id="icpcode">
<button type="button" id="btnSave" class="btn btn-primary">Insert</button></strong>
<p>GRAND VOYAGER WIPER MOTOR REAR 04-08 £35.00</p>
</td>
</tr> <tr id="row_2">
<td><strong><input type="text" value="120040966" id="icpcode">
<button type="button" id="btnSave" class="btn btn-primary">Insert</button></strong>
<p>CHRYSLER GRAND VOYAGER WIPER MOTOR FRONT 01-08 £30.00</p>
</td>
</tr> <tr id="row_3">
<td><strong><input type="text" value="120040964" id="icpcode">
<button type="button" id="btnSave" class="btn btn-primary">Insert</button></strong>
<p>CHRYSLER GRAND VOYAGER MK2 01-08 2.8 CRD GEARBOX AUTOMATIC £500.00</p>
</td>
</tr> <tr id="row_4">
<td><strong><input type="text" value="120040963" id="icpcode">
<button type="button" id="btnSave" class="btn btn-primary">Insert</button></strong>
<p>CHRYSLER GRAND VOYAGER MK2 STOW £80.00</p>
</td>
</tr> <tr id="row_5">
<td><strong><input type="text" value="120040962" id="icpcode">
<button type="button" id="btnSave" class="btn btn-primary">Insert</button></strong>
<p>CHRYSLER GRAND VOYAGER MK2 01-08 WISHBONE DRIVER SIDE £15.00</p>
</td>
</tr> </tbody>
</table>
I then use jQuery to insert the value of the inputbox (icpcode) into the last row of another table and close the open modal and focus on that inputbox:
$('#btnSave').click(function() {
var value = $('#icpcode').val();
$('#tablemain tbody tr:last #itemlookup').val(value);
$('#tablemain tbody tr:last #itemlookup').focus();
$('#productlookup').modal('hide');
});
My problem is that only the first button works, so I need a solution that enables the selected row's value to pass back. I have incremented the tr id, but I'm not sure what I need to do... but I'm presuming it needs something involving $.(this) and also incrementing the inputbox/button. It might be easier to do away with the button and have the row itself to have an onclick? Either way I appreciate any help!
It is because your input boxes all share the same ID and all of your buttons share the same ID. Every element on your page must have a unique ID.
<input type="text" id="input1">
<input type="text" id="input2">
<input type="text" id="input3">
This is the reason only the first button works because it's only finding one element with that ID, and it's the first button, the rest are ignored.
So, to fix the problem, you can either add btnSave as a class to your buttons, like this:
<button type="button" class="btn btn-primary btnSave">
and change your JS to:
$('.btnSave').click(function() {
// do something
});
Or you could change your ID's very slightly, like this:
<button type="button" id="btnSave1" class="btn btn-primary">
<button type="button" id="btnSave2" class="btn btn-primary">
<button type="button" id="btnSave3" class="btn btn-primary">
and your JS would be:
$('button[id^="btnSave"]').click(function() {
// do something
});
What you can do id give them all unique ids and then give them all the same class:
<button type="button" id="row 1" class="btnSave btn btn-primary">Insert</button>
<button type="button" id="row 2" class="btnSave btn btn-primary">Insert</button>
<button type="button" id="row 3" class="btnSave btn btn-primary">Insert</button>
Then use the class as reference and the id for the value;
$('.btnSave').click(function() {
var value = this.id; // this equals 'row 1' | 'row 2' | 'row 3'
// your remaining code here
});
and to get the value of the selected row's text edit, you can reference it by using the button's id to grab the value as shown below and also be ablt to create your table rows using a loop easily and fast.
<table class="datatable tablesort selectable paginate full" width="100%">
<tbody>
<tr>
<td>
<strong>
<input type="text" value="120040965" id="data_1">
<button type="button" id="1" class="btnSave btn btn-primary">Insert</button>
</strong>
<p>GRAND VOYAGER WIPER MOTOR REAR 04-08 £35.00</p>
</td>
</tr>
<tr>
<td>
<strong>
<input type="text" value="120040965" id="data_2">
<button type="button" id="2" class="btnSave btn btn-primary">Insert</button>
</strong>
<p>GRAND VOYAGER WIPER MOTOR REAR 04-08 £35.00</p>
</td>
</tr>
<tr>
<td>
<strong>
<input type="text" value="120040965" id="data_3">
<button type="button" id="3" class="btnSave btn btn-primary">Insert</button>
</strong>
<p>GRAND VOYAGER WIPER MOTOR REAR 04-08 £35.00</p>
</td>
</tr>
</tbody>
</table>
<script>
$('.btnSave').click(function() {
var row = this.id;
var value = $( '#data_' + row ).val();
alert( value );
});
</script>