I'm trying to get the value from a hiddenfield but I'm getting an undefined alert. What am I doing wrong?
// Masterpage
...
<body>
<div class="container">
<asp:ContentPlaceHolder ID="MasterContent" runat="server"></asp:ContentPlaceHolder>
</div>
<script>
$(document).ready(function () {
alert($('#hiddenPersonId').val());
});
</script>
</body>
// Default.aspx
<asp:Content ID="Content" ContentPlaceHolderID="MasterContent" runat="Server">
<asp:HiddenField ID="hiddenPersonId" runat="server" Value="1" />
</asp:Content>
I tried other solutions but these are also not working:
alert($("#<%= hiddenPersonId.ClientID %>").val());
You could try setting ClientIDMode to static if you're .net 4+. You'll want to check that it is defined first. If you want/need the js to be on master page.
<script type="text/javascript">
$().ready(function () {
alert($('#hdnPersonId').val());
});
</script>
<asp:HiddenField ID="hdnPersonId" Value="1" runat="server" ClientIDMode="Static" />
It will not work from master page. You need to call it from Default.aspx or try
$('[id*="hiddenPersonId"]')
on master page but other pages that uses this master page should not have any control that contains hiddenPersonId in its id
Related
Hi I have here a simple representation of the page I want to do.
I want to get the hidden field values of page2.aspx and pass it to the label of page1.aspx using c#.
Can you guys help me tnx :)
HTML
this hidden value is in page 2 that is in iframe
<input type="hidden" id="hdnpage2" runat="server" />
Javascript
on a button click or page load in Page 1 try to call this JS
var iframe = document.getElementById('iframebody');//id of your iframe
var innerDoc = iframe.contentDocument || iframe.contentWindow.document;
var hdnvale = innerDoc.getElementById('hdnpage2');
alert (hdnvale.value);
You can get values from iframe and assigned to parent page.
basically every page is render as html irrespective of languages and technology, so i am using jquery to get the iframe value and assign to parent controls.
Iframe.aspx
<div>
<asp:Label runat="server" ID="lblInfo">This is Iframe : </asp:Label>
<asp:HiddenField ID="hidfld1" runat="server" Value="this is test hidden value." />
</div>
Parent.aspx
<header>
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#uploadIFrame').load(function () {
var $currIFrame = $('#uploadIFrame');
var $hidval = $currIFrame.contents().find("body #hidfld1").val();
alert($hidval);
$("#MainContent_txtInfo").val($hidval);
});
});
</script>
</header>
<body>
<div>
<asp:TextBox runat="server" Text="test" ID="MainContent_txtInfo"></asp:TextBox>
<iframe id="Iframe1" scrolling="no" frameborder="0" style="border-style: none; margin: 0px; width: 100%; height: 40px;" src="IFRAME.aspx"></iframe>
</div>
</body>
once you got the hidden field value in textbox or label then you can user your c# code to process the value in code behind.
I have a user control called header.aspx. In my user control if I do this it will work.
<script type="text/javascript">
function greeting(){
Alert("hi");
}
</script>
<asp:button id="button1" OnClientClick="greeting" /> </asp:button>
I am using this user control in a page called default.aspx. I tried using src="~scripts/foo.js". If I do that it does not work. The question is pretty simple I guess. How would I call a java script function in a user control which is stored in an external location( not in the page. Located in the scripts folder). Thanks in advance.
As I can understand this is clearly a path issue.
Just follow these steps might help you.
Create a .js file first. Put your code and save it in the folder you want it to.
Now Drag and Drop the js file inside the head section of your html code from the Solution Explorer window. This will give you the correct path for the js file.
The above steps is what I follow, when I create an external js file for my controls.
Also make sure you call your function in this manner also suggested by others Else your function won't get call:
<asp:button id="button1" OnClientClick="greeting();" /> </asp:button>
Just use the code below:
<script src="<%: ResolveUrl("~/Scripts/foo.js") %>"></script>
Script: test.js
function greeting() {
alert("hi");
return false;
}
user control: <asp:Button ID="button1" OnClientClick="return greeting()" runat="server" Text="click" />
Page:
<head runat="server">
<title></title>
<script src="test.js"></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:temp ID="temp" runat="server" />
</div>
</form>
</body>
</html>
This should work now.
<asp:button id="button1" OnClick=" javascript : greeting();" /> </asp:button>
try to use it. havent trie but i think it should work.
First of all you need to create a seprate javascript file and then add this in your page in this way. add this tag in the tag of your page.
use
OnClientClick="greeting()"
you missed "()" in OnClientClick="greeting"
Please see the whole html code:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="scripts/foo.js"></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:button id="button1" runat="server" OnClientClick="greeting()" Text="hit" />
</div>
</form>
</body>
</html>
Thanks.
External javascript file reference:
<script src="yourpath/yourfilename.js"></script>
Button Control
<asp:Button ID="button1" OnClientClick="greeting();" runat="server" Text="click" />
I have folder structure like this for asp.net site :
now i run the site and result is like this :
here i am able to see the image "6".
now on click on : button , i am opening another page : dashboard.aspx:
$(document).ready(function () {
$("#btnDashBoard").on("click", function () {
debugger;
window.location.href = "dashboard/dashboard.aspx";
return false;
});
});
here i am not able to see my image, why?
my site.master html is like this :
<head runat="server">
<title></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
$(document).ready(function () {
$("#btnDashBoard").on("click", function () {
debugger;
window.location.href = "dashboard/dashboard.aspx";
return false;
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="btnDashBoard" type="button" value="button" />
</div>
<div>
<img src="../Images/orderedList6.png" alt="" />
</div>
<div>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
You should let ASP.NET help you figure out the paths. There's a utility method on every Control named ResolveClientUrl(). If you pass it the virtual path to a file, it will resolve its full path.
You can use it right in the src attribute for your <img> tag:
<img src='<%= Path.ResolveClientUrl("~/Images/orderedList6.png") %>' alt="" />
I had a problem which was, my path was for example: https://mysite/projects/index
And my html stored in database had an image with this src: ~/Images/myimg.png
So the path i was getting for the image was:
https://mysite/projects/index/~/Images/myimg.png
I just removed the "~" from my source and everything was solved, it lead to image path which was: https://mysite/Content/Images/myimg.png
Hope this helps
$(document).ready(function() {
$('#chkRFI').click(
function() {
$("INPUT[type='checkbox']").attr('checked', $('#chkRFI').is(':checked'));
}); });
<div class="grid_3">
<div class="box">
<div class="boxheader">
<asp:CheckBox ID="chkRFI" runat="server" Text="RFI" />
</div>
<div class="boxbody">
<asp:CheckBoxList ID="chklstRFI" runat="server" CssClass="boxbodylist">
<asp:ListItem Text="RFI No" Value="RFI" />
<asp:ListItem Text="RFI Date" Value="RFI_Date" />
</asp:CheckBoxList>
</div>
</div>
</div>
How to solve? Please provide me any ideas...
Thanks
You should use $('#<%= chkRFI.ClientID %>') instead of $('#chkRFI')
I feel that solution by ysrb should work - but you may also try alternate selectors - for example:
var checkAll = $('.boxheader input');
checkAll.click(function() {
$('.boxbody input').attr('checked', checkAll.attr('checked'));
});
If you are using ASP.NET then all element IDs will be generated in very ugly form, e.g. $Form1$$MyCheckBox (in is not exactly the correct sample, but it shows the main idea). If you are using ASP.NET 4 you can disable this feature in web.config ([pages clientIDMode="static" /]). Analyze your checkbox with FireBug or simply view the page source to make sure that checkbox was generated with correct ID. Hope this helps...
<%# Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Check/Uncheck All CheckBoxes Using JQuery</title>
<script src="Scripts/jquery-1.2.6.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#chkAll').click(
function() {
$("INPUT[type='checkbox']").attr('checked', $('#chkAll').is(':checked'));
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:CheckBox ID="chkAll" runat="server" Text="Check All" /><br />
<asp:CheckBoxList ID="cbList" runat="server">
</asp:CheckBoxList>
</div>
</form>
</body>
</html>
here is the complete example
On my ASPX page, there is a button with this code:
OnClick="save_Click"
Is it possible to execute Javascript before postback and if the result is true, then do the postback and go to method save_click?
There is a property called "OnClientClick" as well. Here you can specify a function that will validate (I'm guessing), or just run regular javascript.
If your data is not valid you can just return false; from the method. That should cancel your postback
you should use the very well known way: return confirm('bla bla bla')
adding this snippet to the onclick attribute of the button in the page or button prerender method, server side...
http://msdn.microsoft.com/en-us/library/7ytf5t7k.aspx
<%# Page Language="C#" %>
<script runat="server">
protected void Button1_Click(Object sender, EventArgs e)
{
Label1.Text = "Server click handler called.";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
<form id="form1" runat="server">
<asp:Button ID="Button1" Runat="server"
OnClick="Button1_Click"
OnClientClick="return confirm('Ready to submit.');"
Text="Test Client Click" />
<br />
<asp:Label ID="Label1" Runat="server" text="" />
</form>
</body>
</html>
Possible duplicate of : Execute ClientSide before ServerSide in ASP.NET
I changed the definition of the __doPostback function to accomplish this:
<script type="text/javascript">
var originalDoPostback = __doPostBack;
__doPostBack = function (p1, p2) {
doSomethingCustomHere();
originalDoPostback(p1, p2);
};
</script>