I try to generate a text field in a table:
The table gets bigger with the input of the user that's why I cant just write the
input syntax in the html document, because the cell isn´t generated from the beginning.
function tableAdd() {
var table = document.getElementById("table");
var titel = document.getElementById("Titel").value;
var description = document.getElementById("Description").value;
var row = table.insertRow();
var projectCell=row.insertCell(0);
projectCell.innerHTML = titel;
// down here is the problem
var x =row.insertCell(1);
x.innerHTML = document.createElement("INPUT")
x.innerHTML.setAttribute("type", "text");
}
The problem is that x.innerHTML is a string, not a html element. You need to set attribute on html element, not string. You can do like this:
var x =row.insertCell(1);
var y = document.createElement("INPUT");
y.setAttribute("type", "text");
x.appendChild(y);
You are trying to assign a reference of HTMLInputElement which is returned from the call to document.createElement("input"); to the non-existent innerHTML property of a HTMLTableRowElement (newRow in my example) reference, returned by insertCell(1);.
Instead you can assign any text value to the value attribute of the HTMLInputElement(input variable in my example) and append the dynamic input to the newly created cell.
function tableAdd() {
var table = document.getElementById("table");
var titel = document.getElementById("Titel").value;
var description = document.getElementById("Description").value;
var row = table.insertRow();
var projectCell=row.insertCell(0);
projectCell.innerHTML = titel;
var newRow =row.insertCell(1);
var input = document.createElement("input");
input.type = "text";
input.value= description
newRow.appendChild(input);
}
tableAdd();
<body>
<input type="text" id="Titel" value="test"/>
<input type="text" id="Description" value="test"/>
<table id="table">
</table>
<button onclick="tableAdd()">add</button>
</body>
Here is the reference documentation:
https://developer.mozilla.org/en-US/docs/Web/API/HTMLTableRowElement/insertCell
https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement
Related
I'm using Firebase to store users info and I'm wanting to populate divs with each users info so it can be either accepted or deleted (but not deleted from Firebase).
So I wanted it to be structured something like this:
----------------------
Name
Email
Date
----------------------
Name
Email
Date
----------------------
and so on....
What I'm currently getting back is something like this:
What is the proper way to generate a div dependent upon how much data is in Firebase and format the content as specificed?
HTML:
<div>Some entry here
<h4 id="name"></h4>
<h4 id="date"></h4>
<h6 id="email"></h6>
<button id="0" class="remove">Remove</button>
</div>
<div>Another entry here
<button id="1" class="remove">Remove</button>
</div>
Javascript:
var ref = firebase.database().ref('requests');
ref.on('value', function(snapshot) {
snapshot.forEach(function(child) {
var datas = child.val();
var email = child.val().Email;
var name = child.val().Name;
var date = child.val().Scheduled_Date;
date = date.replace('.', '/');
$('#name').append(name);
$('#email').append(email);
$('#date').append(date);
});
});
For each child, you are appending the values to the same HTML elements (i.e. all the names are appended to the h4 element with id "name", all the emails to the one with id "email" and so on).
So it is normal they are displayed on a line (one row).
You have to create a new placeholder for each child (and it's set of values). You can do that with e.g. a table, like:
var tableRef = document.getElementById('myTable').getElementsByTagName('tbody')[0];
var ref = firebase.database().ref('requests');
ref.on('value', function(snapshot) {
snapshot.forEach(function(child) {
var datas = child.val();
var email = child.val().Email;
var name = child.val().Name;
var date = child.val().Scheduled_Date;
date = date.replace('.', '/');
// Insert a row in the table at the last row
var newRow = tableRef.insertRow(tableRef.rows.length);
// Insert a cell in the row at index 0
var newCell = newRow.insertCell(0);
// Append a text node to the cell with name value
var newText = document.createTextNode(name); // <-- name value from the child
newCell.appendChild(newText);
var newRow = tableRef.insertRow(tableRef.rows.length);
var newCell = newRow.insertCell(0);
var newText = document.createTextNode(email); // <-- email value from the child
newCell.appendChild(newText);
var newRow = tableRef.insertRow(tableRef.rows.length);
var newCell = newRow.insertCell(0);
var newText = document.createTextNode(date); // <-- date value from the child
newCell.appendChild(newText);
});
});
Inspired by How to insert row in HTML table body in Javascript?. See the fiddle in this SO post.
Or you can do it with divs, here is a possible code:.
HTML
<div id="parentDiv"></div>
JavaScript
var element;
var ref = firebase.database().ref('requests');
ref.on('value', function(snapshot) {
snapshot.forEach(function(child) {
var datas = child.val();
var email = child.val().Email;
var name = child.val().Name;
var date = child.val().Scheduled_Date;
date = date.replace('.', '/');
element = document.createElement("div");
element.appendChild(document.createTextNode(name));
document.getElementById('parentDiv').appendChild(element);
element = document.createElement("div");
element.appendChild(document.createTextNode(email));
document.getElementById('parentDiv').appendChild(element);
element = document.createElement("div");
element.appendChild(document.createTextNode(date));
document.getElementById('parentDiv').appendChild(element);
//You could add a specific css class to this div to generate the bottom border
});
});
To be complete, note that you could also use some MVVM javascript frameworks like vue.js, knockout.js as well as angular, react... in order to easily reflect in your HTML DOM the results of queries to your backend (and vice-versa).
I have a HTML table that looks like this:
<tr class="row-class" role="row">
<td>Text1</td>
<td>
<form method='get' action='http://example.php'>
<input type='hidden' name='id_num' value='ABCD123'> <!-- < I NEED THIS VALUE -->
<button type='submit' class='btn' title='Check' ></button>
</form>
</td>
</tr>
I want to get the value of the hidden input type named id_num. (In this example the value I want is "ABCD123").
I tried to parse the code with cheerio like this:
var $ = cheerio.load(body);
$('tr').each(function(i, tr){
var children = $(this).children();
var x = children.eq(0);
var id_num = children.eq(1);
var row = {
"x": x.text().trim(), //this is correct, value is Text1
"id_num": id_num.text().trim() //This is empty, value is "", I want the value "ABCD123"
};
});
But I only get the first value correct.
How can I get the value from the hidden input element id_num?
Thanks.
That should be:
$(tr).find('[name="id_num"]').attr('value')
Your eq(1) was getting the whole <tr>, try this instead:
$('tr').each(function(i, tr){
var children = $(this).children('td');
var x = $(children[0]);
var id_num = $(children[1]).find("input[name='id_num']");
var row = {
"x": x.text(),
"id_num": id_num.val()
};
}
I have a dynamic form with a select dropdown, and I want to know what select was changed, however any time that I add a new form and try to change any select the alert is the same: "origen1"
Here is my js code:
<SCRIPT language="javascript">
function addRow(divId) {
count = 0;
count++;
var etiquetas = new Array();
var origenes = new Array();
var parentDiv = document.getElementById(divId);
// create a div dynamically
var eleDiv = document.createElement("div");
eleDiv.setAttribute("name", "olddiv");
eleDiv.setAttribute("id", "olddiv");
// create a label dynamically
var etiqueta = document.createElement("input");
etiqueta.setAttribute("name", 'etiqueta' + count);
etiqueta.setAttribute("value", "etiqueta");
etiqueta.setAttribute('disabled', true);
etiquetas.push(etiqueta);
//create a select dynamically
var myarray=new Array(3)
myarray[0] = "Opt1"
myarray[1] = "Opt2"
myarray[2] = "Opt3"
var origen = document.createElement("select");
origen.setAttribute("name", 'origen' + count);
for (i=0; i<3; i++)
{
opt = document.createElement('option');
opt.value = i;
opt.innerHTML = myarray[i];
origen.appendChild(opt);
}
origen.onchange = function(){testselect(this);};
origenes.push(origen);
// create a delete button dynamically
var eleBtn = document.createElement("input");
eleBtn.setAttribute("type", "button");
eleBtn.setAttribute("value", "delete");
eleBtn.setAttribute("name", "button");
eleBtn.setAttribute("id", "button");
eleBtn.setAttribute("onclick", "deleteRow('button')");
// append new div to parent div
parentDiv.appendChild(eleDiv);
// append textbox & button to new div
eleDiv.appendChild(etiqueta);
eleDiv.appendChild(origen);
eleDiv.appendChild(eleBtn);
}
function testselect(seleccion)
{
alert(seleccion.name);
}
function deleteRow(tableID) {
var div = document.getElementById('olddiv');
if (div) {
div.parentNode.removeChild(div);
}
}
</SCRIPT>
And the html:
<form name="objForm" action="test1.php">
<INPUT type="button" value="Add Row" onclick="addRow('dataTable')" />
<div id="dataTable" width="350px">
</div>
<input type="submit" value="Submit"/>
</form>
Try inspecting the drop down using firebug. With that you might be able to get the name and ID of the selected drop down but remember the selected drop down has to be selected using firebug in order to see the ID or name used with it.
Since this is JS and the drop down is not selected properly you might not see the name or id used.
So make sure to it is properly selected
I have a Spring MVC application where I am required to capture a variable number of key value pairs based on user input. The HTML & JS part of the code to render the controls is as follows :
<tr>
<td><label>Attributes (Names & Value(s))</label></td>
<td><input id="Button1" type="button" value="Add" onclick="Button1_onclick()"/></td>
</tr>
<script language="javascript" type="text/javascript">
var NumOfRow = 1;
var attribs = {};
function Button1_onclick() {
NumOfRow++;
// get the reference of the main Div
var mainDiv = document.getElementById('MainDiv');
// create new div that will work as a container
var newDiv = document.createElement('div');
newDiv.setAttribute('id', 'innerDiv' + NumOfRow);
//create span to contain the text
var newSpan = document.createElement('span');
newSpan.innerHTML = "Attribute Type";
// create new textbox for type entry
var newTextBox = document.createElement('input');
newTextBox.type = 'text';
newTextBox.setAttribute('id', 'DimensionType' + NumOfRow);
//create span to contain the text
var newSpan2 = document.createElement('span');
newSpan2.innerHTML = "Attribute Value(s)";
// create new textbox for value entry
var newTextBox2 = document.createElement('input');
newTextBox2.type = 'text';
newTextBox2.setAttribute('id', 'DimensionValue' + NumOfRow);
// create remove button for each attribute
var newButton = document.createElement('input');
newButton.type = 'button';
newButton.value = 'Remove';
newButton.id = 'btn' + NumOfRow;
// attach event for remove button click
newButton.onclick = function RemoveEntry() {
var mainDiv = document.getElementById('MainDiv');
mainDiv.removeChild(this.parentNode);
NumOfRow--;
}
// append the span, textbox and the button
newDiv.appendChild(newSpan);
newDiv.appendChild(newTextBox);
newDiv.appendChild(newSpan2);
newDiv.appendChild(newTextBox2);
newDiv.appendChild(newButton);
// finally append the new div to the main div
mainDiv.appendChild(newDiv);
}
}
</script>
I am not sure how to send this captured data back to my controller when the form is submitted. Please advise. Also if there is a better way to capture such data, those suggestions are most welcome as well.
What about making Capture key event in a text field you can do this :
<html>
<head>
<script language="JavaScript" type = "text/javascript">
<!--
document.onkeypress = DisplayMsg;
function DisplayMsg(key_event)
{
if (document.all) //Checks for IE 4.0 or later
{
document.form1.text2.value = String.fromCharCode(event.keyCode);
}
else if (document.getElementById) //checks for Netscape 6 or later
{
document.form1.text2.value = String.fromCharCode(key_event.which);
}
else if (document.layers) //Checks for Netscape 4
{
document.form1.text2.value = String.fromCharCode(key_event.which);
}
}
//-->
</script>
<title>Capture Key Pressed</title>
</head>
<body>
<form name="form1">
<b>Type value in field: See what you typed:</b><br>
<input type = "text" name = "text1" onKeyPress="DisplayMsg(event)" size="20">
<input type = "text" name = "text2" onKeyPress="DisplayMsg(event)" size="20">
</form>
</body>
</html>
I used Javascript to dynamically add textbox in order for the user to add more items in one process. Here's the code that add textboxes:
<script type="text/javascript">
var quantity = document.getElementById('quantity');
var item = document.getElementById('item');
var serial = document.getElementById('serial');
var property = document.getElementById('property');
document.getElementById('add').onclick = function () {
var input = document.createElement('input'),
div = document.createElement('div');
input.type = "text";
input.setAttribute("name", "quant");
div.appendChild(input);
quantity.appendChild(div);
var input2 = document.createElement('input'),
div2 = document.createElement('div');
input2.type = "text";
input2.setAttribute("name", "items");
div.appendChild(input2);
item.appendChild(div);
var input3 = document.createElement('input'),
div3 = document.createElement('div');
input3.type = "text";
input3.setAttribute("name", "serno");
div.appendChild(input3);
serial.appendChild(div);
var input4 = document.createElement('input'),
div4 = document.createElement('div');
input4.type = "text";
input4.setAttribute("name", "proper");
div.appendChild(input4);
property.appendChild(div);
};
</script>
When the user clicks the "Add Text" button, one set (four textboxes) will appear. My problem is even if the user clicks and inputs data into those textbox, it will only insert one set of data (which was the last set of input). Its because of the "name" of the textbox are the same. How can I insert those multiple data? Or how can I set a unique name for the added textbox in order to insert them into the database?
You'll want to change the names with a [] appended to it. This will pass an array to the PHP on form submit.
input.setAttribute("name", "quant[]");
To get the values in PHP,
$quant_values = $_GET['quant']; // array of values
$value_one = $quant_values[0];
You will need to implement a loop to iterate through the values.