This question already has answers here:
Setting the Textbox read only property to true using JavaScript
(6 answers)
Closed 9 years ago.
i have a textbox whose property i need to set as readonly...
how to set that?
I tried
document.getElementbyid("txtbox").readonly=true;
document.getElementbyid("txtbox").disable=true;
document.getElementbyid("txtbox").setattribute("readonly","readonly");
all these are not working for me.
Disable is working but that is passing the control values as null to the database...again that is a problem for me..
You can set an ASP.NET textbox readonly through javascript.
Here is how:
<script type="text/javascript">
function setReadOnly(){
var textbox = document.getElementById("TextBox1");
textbox.readOnly = "readonly";//readOnly is cese-sensitive
}
<body onload=" setReadOnly ()">
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</div>
</form>
</body>
Hope it'll help you.
You have numerous issues with the code in your question. The very first example would work if you had got the names of the properties right:
document.getElementById("txtbox").readOnly = true;
Notice the uppercase letters (getElementById instead of getElementbyid and readOnly instead of readonly).
Here's a working example of the above.
As for your 2nd attempt, the property is disabled, not disable. And your 3rd attempt, the method is setAttribute, not setattribute. As you can see, JavaScript is case sensitive!
The proper way is:
document.getElementById("txtbox").setAttribute("readonly", "true");
Or for the jQuery enthusiasts:
$("#txtbox").attr("readonly", true);
<script type="text/javascript">
function loading() {
var input_text = document.getElementById("text");
input_text.setAttribute("readOnly", true);
}
Works for me well....... use camelcase with property....... readOnly not as readonly.....
Related
This question already has answers here:
getAttribute() versus Element object properties?
(7 answers)
Closed 5 years ago.
I have a simple web-application with an input text field in it looking like this:
<input id="txtip" type="text" value="10.1.1.50" />
The address 10.1.1.50 is a default value for an ip address. And from javascript I would read it like this:
txtip.getAttribute("value")
Now let's suppose to change it to 10.1.1.49. In google chrome the above javascript code will still return 10.1.1.50, while the expression
txtip.value
returns 10.1.1.49.
What is the difference? What is the "right way"?
var el = document.getElementById('testBox');
$(document).focusout(function () {
alert('el.value = ' + el.value);
alert('el.getAttribute("value") = ' + el.getAttribute('value'));
e.preventDefault();
});
<h2>Change value in the text box</h2>
<input id="testBox" type="text" value="original value" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
Found this on web might help you try following code type something and focusout
The difference is that element.value is real time and if a user changes let's say, a textbox input, it will reflect that, and show you the new value.
While getAttribute('value') will still show the original value="whateverWasHere" value.
This question already has an answer here:
Parsing HTML to get script variable value
(1 answer)
Closed 7 years ago.
I am using HTMLAgilityPack. I want to get a value inside a script tag, see the code:
<div id="frmSeller" method="post" name="frmSeller">
<div class="clear"></div>
<script type="text/javascript" language="javascript">
Biz.Product.GroupItemSwitchLogic.init();
Biz.Product.GroupItemSwitcher.init({
properties:null,
availableMap:[{"info":{"item":"28-200- 286","price":95.99,"vehicle":null},"map":[]}],
selectedProperties:[]
});
</script>
</div>
From there I want to get value of "price" that is 95.99.
How can i get this kindly tell me, what type of Regex I can use....
Thankyou
You can do some string manipulation like this
s = the html code
var s = z.Split(new String[] { #"price"":" }, StringSplitOptions.None);
var price = s[1].Split(',')[0];
and now price variable has your price
I'm trying to get the value of a textbox into a JavaScript variable. ultimately I'm trying to hide or show different webparts depending on the value in the textbox. I'm piecing the code together to test for input first. Below is the code for the textbox in question that I pulled from Firebug:
<input onfocus="return (TextBox.OnFocus(this, event));" onblur="return (TextBox.OnBlur(this, event));" oninput="return (TextBox.OnInput(this, event));" id="ctl00_m_g_ff1af521_db80_4f46_9a65_42671828173f_FormControl0_V1_I1_T82" scriptclass="TextBox" class="z_VYBB68eomwymAKXW_0 c5_VYBB68eomwymAKXW_0 ef_VYBB68eomwymAKXW_0" wrapped="true" direction="ltr" viewdatanode="83" formid="ctl00_m_g_ff1af521_db80_4f46_9a65_42671828173f_FormControl0" originalid="V1_I1_T82" tabindex="0" title="" value="Visible" style="position: relative;" type="text">
If I use the code below I get an "Undefined" error message(popup). As you can clearly see though, the value of the textbox = "Visible" as the code above tells us.
$(document).ready(function()
{
var HideWeb = $("#ctl00_m_g_ff1af521_db80_4f46_9a65_42671828173f_FormControl0_V1_I1_T82").val();
alert(HideWeb);
});
I've also tried the following with no success (popup returns empty).
var HideWeb = document.getElementById("#ctl00_m_g_ff1af521_db80_4f46_9a65_42671828173f_FormControl0_V1_I1_T82").value;
alert(HideWeb);
I've also tried using the other ID numbers in hopes that one of them would work in the JavaScript\Jquery code above. If someone could pick this apart and help me determine what the problem is I would appreciate it.Thank you.
This correspondes to a question I asked here.......
https://sharepoint.stackexchange.com/questions/113969/showing-hiding-webparts-conditionally
you may try..
$("input:text[originalid='V1_I1_T82']").val()
This will return you the value..
try removing "#"
var HideWeb = $("ctl00_m_g_ff1af521_db80_4f46_9a65_42671828173f_FormControl0_V1_I1_T82").val();
This question already has answers here:
Why does jQuery or a DOM method such as getElementById not find the element?
(6 answers)
Closed 8 years ago.
I am very new to javascript. I am trying to place value on one input field. But it is not working, I don't know why..
document.getElementById("c_add").value='sssssss';
in the text area with id "c_add", I supposed that value will place as "sssssss", but it is not setting any value..
Full Code:
<body>
<script type="text/javascript">
document.getElementById("c_add").value='sssssss';
</script>
<textarea name="c_add" id="c_add"></textarea>
</body>
Did you tried do like this?
<input type="text" id="mytext">
<script type="text/javascript">
var elem = document.getElementById("mytext");
elem.value = "My default value";
</script>
I'm using this code to set the HTML textbox value using Javascript function. But it seems to be not working. Can anyone point out, what is wrong with this code?
Whats your Name?
<input id="name" value="" />
<script type="text/javascript">
function setValue(value){
var myValue=value;
document.getElementsById("name").value = myValue;
}
</script>
the "value" is came from my android java class using this codes
String value = "Isiah";
WebView web = (WebView) findViewById(R.id.web1);
web.getSettings().setJavaScriptEnabled(true);
web.loadUrl("file:///android_asset/www/webpage");
web.loadUrl("javascript:setValue("+ value +")");
function setValue(value) {
var myValue=value; //unnecessary
document.getElementById("name").value= myValue;
}
But then as pointed out in the comments, you need to call setValue(value) somewhere in your code. Right now you just defined the function is never called.
You could either access the element’s value by its name:
document.getElementsByName("textbox1"); // returns a list of elements with name="textbox1"
document.getElementsByName("textbox1")[0] // returns the first element in DOM with name="textbox1"
So:
input name="buttonExecute" onclick="execute(document.getElementsByName('textbox1')[0].value)" type="button" value="Execute" />
Or you assign an ID to the element that then identifies it and you can access it with getElementById:
<input name="textbox1" id="textbox1" type="text" />
<input name="buttonExecute" onclick="execute(document.getElementById('textbox1').value)" type="button" value="Execute" />
You are using document.getElementsById("name") it should be document.getElementById("name")
not Elements it is Element
You are not linking the function to anything. For example, a click:
<input id="name" value="" onclick="javascript:this.value=12;"/>
Replace the onclick attribute for your desired function, whatever it does (you need to be more specific)
Also, there is no language attribute (at least not anymore) use type="text/javascript" instead
Here is a fiddle: http://jsfiddle.net/4juEp/
Click the input to see it working.
Look at this second fiddle. http://jsfiddle.net/4juEp/1/
which loads whatever is defined in the hid input to the name input.
Firstly, you have a typo in your javascript function i.e. you have used getElementsById as compared to getElementById
To set the value of the textbox on page load, I suggest you use an alternative
<body onload="setValue('yourValueToSet');">
<!-- Your usual html code in the html file -->
</body>
I think you are missing the quotes,
try,
web.loadUrl("javascript:setValue('"+ value +"')");
also consider about the typo.
Check this out:
<body onload="setvalue($value);">
Whats your Name?<input id="name" name="name" value=""/>
<script type="text/javascript">
function setValue(value){
document.{formname}.name.value = value;}</script>
It's not Elements
It's Element
You should use document.getElementById('object-id');