I have this function:
<script>
function ClearTextBox(textbox_name) {
$(textbox_name).val("")
}
</script>
that removes values from a text input
i am trying to call it using:
Clear
but its not clearing the text box
You should use Unobtrusive JavaScript .
Try this code.
$('a').on('click',function(){
$('#customercompany1').val("");
});
It seems working fine for me.. but the console shows the following error
Uncaught SyntaxError: Unexpected token )
this is due to the javascript:void(); in your href attribute.
so i changed the mark up to
Clear
<input type="text" id="customercompany1" value="test value" />
and the script as
function ClearTextBox(textboxname) {
$(textboxname).val(" ");
return false;
}
Hope this helps....
DEMO HERE
Write your function like this:
function ClearTextBox(myInput) {
var txtBox = document.getElementById(myInput);
txtBox.value = "";
return false;
}
And write your html like this:
Clear
<input type="text" id="customercompany1" />
Need to see your HTML to be sure, but I'm guessing your text box looks like this :
<input type="text" name="customercompany1"/>
and it needs to look like this :
<input type="text" name="customercompany1" id="customercompany1"/>
The '#' jQuery selector matches on the id attribute, not the name attribute.
(This is true if you have used a textarea rather than an input)
Related
i would like to get the value of an <input type="text"> that was created dynamically inside a modal and put it into variable "newcomment".
This is how i make the input:
var newcomment;
var p = $("<p>");
p.append("Some text");
p.append("</p>");
p.append("<input type='text'id='comment_text' value='Comment'"+"onblur=newcomment=$('#comment_text').val()"+" onfocus=if(this.value==this.defaultValue)this.value=''>"+"</input>");
$("div.modal-body").append(p);
The problem is when i write something like "ok" inside the textbox in the modal, and after i focusout from the textbox: newcomment seems not update to "ok" and still have the default "Comment" value.
1st: You need to use newcomment=this.value instead of newcomment=$('#comment_text').val()
2nd: No need to add + signs in your input html code while you not trying to concatenate string by putting variables to it
var newcomment;
var p = $("<p>");
p.append("Some text");
p.append("</p>");
p.append("<input type='text' id='comment_text' value='Comment' onblur='newcomment=this.value; alert(newcomment);' onfocus=if(this.value==this.defaultValue)this.value='' />");
$("body").append(p);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Not really the answer here, but might help you get at the root of the problem.
JS:
var newComment, defaultValue;
function doOnBlur(){
newComment = $('#comment_text').val()
}
function doOnFocus(){
if($('#comment_text').val() == defaultValue){
$('#comment_text').val('')
}
}
HTML:
<input type='text' id='comment_text' placeholder='Comment' onblur='doOnBlur()' onfocus='doOnFocus()' />
<!-- inputs dont have a close tag, also should use placeholder for temporary text -->
from here, you can set breakpoints in the debugger and see where your code is going wrong. You can also modify the functions much more easily rather than writing the executing code in the HTML
I have a very simple piece of Javascript that works perfectly onLoad, but I need it to work onChange.
My script;
<form action="" method="post" name="product_search">
<p><strong>Existing Part Number:</strong>
<input name="v_prodref" type="text" id="v_prodref" size="25" maxlength="25" onChange="searchValue()">
<input type="text" name="prodref" id="prodref">
<input type="submit" name="search_Submit" id="search_Submit" value="Submit">
</p>
<div>
<%=(rs_ProductCheck.Fields.Item("prodref").Value)%>
// <%=(rs_ProductCheck.Fields.Item("proddesc").Value)%></div>
<script>
function searchValue() {
var add = "NW";
var c_ProdRef = document.getElementById('v_prodref');
if(c_ProdRef.search(/GST/i) == -1) {
n_ProdRef = c_ProdRef.concat(add) }
else {
n_ProdRef = c_ProdRef.replace(/GST/i,"NWGST") }
document.getElementById("prodref").value = n_ProdRef;
}
</script>
</form>
So, I enter a part number in the first text box, and I want my javascript to run and enter the new value in the second text box, but it doesn't seem to work.
What am I missing?
search does not exist on an HTMLInputElement. You need to use c_ProdRef.value.search.
(Actually, since you're using it in many places as a string, and never as an input, you probably intended to define c_ProdRef as var document.getElementById('v_prodref').value)
You would've seen this error on load as well.
you want onkeyup if it works perfectly onLoad, and you want to start typing in something in textbox 1 and the javascript to run, you dont want onchange
onchange triggers after blur of focused element
onkeyup triggers after you release a keyboard input
Thanks to everyone for their help. After a little tweaking I have managed to get my code working.
function myFunction() {
var add = "NW";
var c_ProdRef = document.getElementById('v_prodref').value;
if (c_ProdRef.search(/GST/i) == -1) {
n_ProdRef = c_ProdRef.concat(add)
} else {
n_ProdRef = c_ProdRef.replace(/GST/i, "NWGST")
}
document.getElementById("prodref").value = n_ProdRef;
}
Along with #indubitablee suggestion of onKeyup and specifying the .value of my first text field it all works.
my requirement is to save the entire "html" inside a div, but when i load an "html" with text fields to a div and then editing the value of the text box, the newly set value doesn't reflect in the core "html". I tried to inspect the value with fire bug and it remains the same or no value at all.With "jquery" i tried to set attribute but no attribute name value is created. how can i set the value of text fields and then get that "html" with the newly set value.
here is my html
<div class="sub_input_box">
<input type="text" / class="boreder_line">
<input type="text" id="txt" value=""/>
<input type="hidden" id="hid" />
<div class="clear"></div>
</div>
and the jquery i used to set attribute
$("#txt").attr("value", "some value");
Chances are you're calling your jQuery code before the HTML input part. You can either place the jQuery stuff below it, or if you don't want to, you can do something like this:
$(document).ready(function(){
$("#txt").attr("value", "some value");
});
That will only run when the page is fully loaded.
However, it's unclear if you're using AJAX to load those inputs into your DOM. If so, you need to call $("#txt").attr("value", "some value"); in the onSuccess callback function which is fired after the AJAX successfully responds.
You can try something like this:-
<input name="example" type="text" id="example"
size="50" value="MyDefaultText" onfocus="if(this.value=='MyDefaultText')this.value=''"
onblur="if(this.value=='')this.value='MyDefaultText'" />
Have you tried:
$("#txt").val("Hello World!");
For setting the text value, and,
var my_string = $("#txt").val();
For getting the text value.
Let me know if it works.
Excellent question. You would think clone would do this on its own, alas, it doesn't.
Here is a sample than you can hopefully adapt to do what you need
HTML
<div id=divToCopy>
<input name=i1 value=foo><br>
<input name=i2 value=bar>
</div>
<input type=button onclick=copyDiv(); value='Copy the div'>
<div id=newDiv>
the copy will go here
</div>
JavaScript
function copyDiv() {
$('#newDiv').html($('#divToCopy').clone());
$('#divToCopy :input').each(function() {
var child=0;
for (var i = 0; i < this.attributes.length; i++) {
var attrib = this.attributes[i];
var prop=$(this).prop(attrib.name);
$($('#newDiv').find(' :input')[child]).prop(attrib.name,prop);
child++;
}
});
}
But it does work: http://jsbin.com/eXEROtU/1/edit
var html = '<input type="text" id="txt" value=""/>';
$(document).ready(function() {
$("#load").click(function() {
$("#sub_input_box").html(html);
});
$("#inspect").click(function() {
alert($("#txt").val());
});
});
$(document).on('focusout','input[type="text"]',function(a){
console.log(a.target.value);
a.target.setAttribute("value",a.target.value);
});
this is the solution i found, i had to set the value attribute explicitly on loose focus from the text field
I am trying to append the value of a div or a input box to my text area. I have this working no problem but if i clear the contents of the text area first with a Jquery action it doesnt allow me to use my append features.
E.g.
<script type="text/javascript">
$(document).ready(function() {
$("#Column1").click(function () {
$("#sql").append($("#Column1").val())
})
$("#Column2").click(function () {
$("#sql").append($("#Column2").html())
})
$("#reset_sql").click(function () {
$("#sql").val('SELECT ')
})
</script>
<div> <input type="checkbox" name="column1" id="column1" value="`Column1`"> column1 </div>
<div id="Column2"> Column2 </div>
<textarea rows="10" cols="80" name="sql" id="sql"><? echo $sql ;?></textarea>
<input type="submit" value="submit" />
<input type="button" value="reset sql" id="reset_sql" />
The input and div lines above are just generic examples but relate exactly to what i'm trying to do.
I dont understand that when i clear the text area with javascript that my appends wont work. I get no JS errors in firefox error console.
thank you
You have several issues with your code: you haven't closed your document.ready callback, you are using the incorrect case when refering to your ID's, and you're using some of the jQuery methods incorrectly. For example, append() appends HTML to an element, whereas you want to update the value.
Your logic isn't quite correct either, since columns won't be removed when you uncheck a checkbox, and the columns won't be comma delimited (it looks like you are building a SQL string here).
I believe something like this is what you're looking for:
$(document).ready(function() {
var $sql = $('#sql');
var initialValue = $sql.val();
$("#column1, #column2").on('change', function () {
var cols = [];
var checked = $('input[type="checkbox"]').filter(':checked').each(function() {
cols.push($(this).val());
});
$sql.val(initialValue + ' ' + cols.join(', '));
})
$("#reset_sql").on('click', function () {
$sql.val(initialValue)
})
});
Working Demo
Your checkbox has an id of 'column1', but your event handler is $("#Column1").click(function () {.
Case matters! Either change the id to 'Column1' or the event handler to look for $('#column1').
Demo
i am using javascript to change the text of div tag on run time.
how can this be done..
my div tag is as:
<div id="topdiv" style="color:Blue" onmouseover="button1();">
<input type="button" id="btndiv" onclick="edit1();"/>
Div Tag
</div>
i wnt the user to input text on runtime in div and that should be displayed in div.
can someone help me..
It should be innerHTML. innerHTM is not a javascript function.
You don't get a magic variable just by having an element with an id. var something = document.getElementById('some-id')
The property is called innerHTML not innerHTM
innerHTML is a string variable not an function. Assign a value to it with =, don't try to call it with ()
function edit1() {
alert('you are in edit1');
document.getElementById('topdiv').innerHTML = 'hello';
}
and with proper error handling:
function edit1() {
alert('you are in edit1');
var topDiv = document.getElementById('topdiv');
if (topDiv != null) {
topDiv.innerHTML = 'hello';
} else {
alert('topdiv is nowhere to be found in this DOM');
}
}
Try document.getElementById('topdiv').innerHTML = "Hello"
To get the div you should use document.getElementById('topdiv'). There is indeed a WebKit feature, that elements with an ID are automatically expanded as global variables, but it's highly questionable, that this becomes mainstream.
Then, innerHTM should read innerHTML, and you assign directly:
foo.innerHTML = "hi there"
you should use
document.getElementById('topdiv').innerHTML = 'hello';
You should use references instead of ID's, using this.
In that case this means the node that triggers the event.
<div style="color:Blue" onmouseover="button1(this);">
<input type="button" onclick="edit1(this);"/>
Div Tag
</div>
function button1(divRef){
//divRef is the reference to the DIV
}
function edit1(inputRef){
//inputRef is the reference of the INPUT
//inputRef.parentNode is the reference to the DIV
}
function edit1() {
alert('you are in edit1');
document.getElementById('topdiv').innerHTML = 'hello';
}
This should work by specifying the id
In standard JavaScript usage you'd do as per #DarinDimitrov 's answer.
document.getElementById("topdiv").innerHTML = ('hello');
Once you're happy with JavaScript I would suggest you look at the JQuery libraries - the powerful syntax will let you write short, neat code like this:
$("#topdiv").html('hello');
Your file
<div id="topdiv" style="color:Blue" onmouseover="button1();"> Div Tag</div>
<form><input type="button" id="btndiv" value="Edit" onClick="window.open('t2.html','popuppage','width=850,toolbar=1,resizable=1,scrollbars=yes,height=700,top=100,left=100');" value="Open popup"/></form>
t2.html file
function sendValue (s){var selvalue = s.value;window.opener.document.getElementById('topdiv').innerHTML = selvalue;window.close();}
<form name="selectform"><input name="details" value=""><input type=button value="Copy input to parent opener" onClick="sendValue(this.form.details);"></form>
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