My question is that how to set a starting point for a webpage when it is loaded. I have some information in a content placeholder, when the form containing the content placeholder is loaded instead of displaying the information in the content placeholder it goes back to the top and i have to scroll down every time. Is there any way i can make the content place holder as the starting display point for my webpage?? Thanks in advance.
Assuming you are using asp.net web forms, you can use below snippet to set the focus on your placeholder/server control,
if (!IsPostBack)
{
Page.SetFocus(ContentPlaceHolderID);
}
Add an HTML anchor in the view where the you want to be scrolled down to. Then on page load use java script to move to the anchor. see How to scroll HTML page to given anchor using jQuery or Javascript?
Here is an example assuming you are using Razor with a section render
<a href="#contentAnchor">
#RenderSection("content")
</a>
<script type="text/javascript">
$(function() {
location.hash = "#contentAnchor";
});
</script>
Related
I need to run my JavaScript Code on Page Start.
<body onload="document.getElementById('Label1').style.display = 'none';document.getElementById('Textbox1').style.display = 'none';">
Currently I'musing a Onload property in Body Tag and using the code in that. By using in this way the code is running after the total page is loaded and it takes some time to make the label and the textbox to disappear.
Is there any way to run this code before the page Loads??
Or some other way in which I can accomplish this ?
(I'm using another JavaScript function to make the Label and Textbox Visible and Invisible basing on a DropdownList SelectedIndex so if I use properties like style="display:none" I could not make them visible again using JavaScript)
You don't need to make your html elements invisible with javascript when the page is being loaded. You can set them invisible with css using visibility:hidden or display:none and then set them visible with javascript like this:
document.getElementById("someobject").style.display="block";
OR
document.getElementById("someobject").style.visibility="visible";
Also if you are using jquery you can use
$(document).ready(function(){
});
Use jquery's $(document).ready(function(){ this is my code; });
I have a content page(Say.. invoice.aspx) in asp.net application with master pages.
The content page(invoice.aspx) is using a gridview, which displays records from database.
Currently i am navigating to this page using - Response.redirect("invoice.aspx") and this is working fine.
But i need to display this page as pop-up from calling page, so that this popup invoice can be seen on the top of other pages.
Please help me if this can be done using javascript or some other way.
Thanks in advance..
A page popup can be implemented using a div as a container with a different style (opacity, window position, size etc) and has a higher z-index than the rest of the page.
thus basically you need a structure like
<div class="overlayOuter">
<div class="overlayInner">
<!-- external content to be loaded here -->
</div>
</div>
and now using AJAX you load the invoice.aspx page to the inner container and show the container and reduce the opacity of the outer container.
There should be libraries out there that let you do this. you need to explore that on your own.
You can use modal popups for the above scenario:
one example can be found here: http://sandbox.scriptiny.com/tinybox2/
its easy and not much code you need to write and also can load popup as an iframe so postbacks can be handled without posting back parent page or you can use ajax
function OpenWindow(strChildPageUrl) {
var testwindow = window.open(strChildPageUrl, "Child", "width=700px,height=650px,top=0,left=0,scrollbars=1");
testwindow.moveTo(100, 0);
}
</script>
I am trying to display a page into an IFrame.
The IFrame is displayed into a fancyBox overlay popup.
I have a list with the http links (gets compiled at runtime and it constantly changes).
Using a global variable I can access the list with the links.
But the http link in the list must match the link I have clicked.
If I can even get the link which I have clicked it will also be enough (the link brings up a fancyBox popup so it doesn't actually bring up a new page so to speak)
How to do that?
You have to write some tricky code to achieve this, main goal is to edit the dynamically added page content by adding wrapper tag (with onclick event) around all the links, writing javascript to be called using that wrapper to findout which link has been clicked,
You can try this by doing following steps
1) Get the content of IFrame , using the following JQuery code you can get the content of IFrame
var $currentIFrame = $('#myIFrame');
var content = $currentIFrame.contents();
2) Now manupulate these content by finding all the links inside that page and wrapping them with a tag that should have onclick event e.g. span , you have to write some javascript function to fire on a link if user clicks it.
see the following link for how to manipulate content
Get all links inside iframe and add blank target attribute
I am trying to retrieve a html document to show in my web page, now the content comes from database as a string. Now I know there is a way to do this in win forms using Browser.DocumentText. But how do I do this in web form?
I tried the setting the innerHTML property for a div inside of the "OnRowCommand", the "OnRowCommand" happens to be inside an update panel. When I move the Div outside the panel, say to just below the body, it renders well.
Well there are many ways to do this, you can use a label, literal Controls.
Or maybe defining a public string within your page then use it directly in your html as:
<%= strSomeString %>
Add a literal control in aspx file and in codebehind set
Literal1.Text=data_from_DB;
Try this one:
html code:
<div id="webcontent" runat="server">
</div>
Code behind:
webcontent.InnerHtml = FromDBstring;
Write up for Mvc app Html.Raw('html tages') or MvcHtmlString.Create('html tages') and for web form HttpUtility.HtmlEncode('html tages')
I have run in to a bit of a problem and I have done a bit of digging, but struggling to come up with a conclusive answer/fix.
Basically, I have some javascript (created by a 3rd party) that does some whizzbang stuff to page elements to make them look pretty. The code works great on single pages (i.e. no master), however, when I try and apply the effects to a content page within a master, it does not work.
In short I have a master page which contains the main script reference. All pages will use the script, but the parameters passed to it will differ for the content pages.
Master Page Script Reference
<script src="scripts.js" language="javascript" type="text/javascript" />
Single Page
<script>
MakePretty("elementID");
</script>
As you can see, I need the reference in each page (hence it being in the master) but the actual elements I want to "MakePretty" will change dependant on content.
Content Pages
Now, due to the content page not having a <head> element, I have been using the following code to add it to the master pages <head> element:
HtmlGenericControl ctl = new HtmlGenericControl("script");
ctl.Attributes.Add("language", "javascript");
ctl.InnerHtml = #"MakePretty(""elementID"")";
Master.Page.Header.Controls.Add(ctl);
Now, this fails to work. However, if I replace with something simple like alert("HI!"), all works fine. So the code is being added OK, it just doesn't seem to always execute depending on what it is doing..
Now, having done some digging, I have learned that th content page's Load event is raised before the master pages, which may be having an effect, however, I thought the javascript on the page was all loaded/run at once?
Forgive me if this is a stupid question, but I am still relatively new to using javascript, especially in the master pages scenario.
How can I get content pages to call javascript code which is referenced in the Master page?
Thanks for any/all help on this guys, you will really be helping me out with this work problem.
NOTES:
RegisterStartupScript and the like does not seem to work at any level..
The control ID's are being set fine, even in the MasterPage environment and are rendering as expected.
Apologies if any of this is unclear, I am real tired so if need be please comment if a re-word/clarification is required.
Put a ContentPlaceHolder in the head section of the master page, then add a asp:Content control on the content page referring to the placeholder and put your script in that control. You can customize it for each page this way.
Also, the reference by ID may not be working because when you use Master Pages, the control IDs on the page are automatically created based on the container structure. So instead of "elementID" as expected, it may be outputting "ctl00_MainContentPlaceHolder_elementID" View your source or use firebug to inspect your form elements to see what the IDs outputted are.
Isn't it possible to do with clean javascript ?-)
-- just add something similar to this inside the body-tag:
<script type="text/javascript">
window.onload = function(){
MakePretty("elementID");
}
</script>
By the way the script-tag has to have an end-tag:
<script type="text/javascript" src="myScript.js"></script>
Why not use jQuery to find all the controls? Something like this:
$(document).ready(function(){
$("input[type='text'], input[type='radio'], input[type='checkbox'], select, textarea").each(function(){
MakePretty(this);
});
});
This way you'll get all elements on the page, you can wait until the page is ready (so you don't modify the DOM illigally). The jQuery selector can get the elements in a bit more of a specific format if you need (ie, add a root element, like the ID of the body div).
It'd also be best to modify the MakePretty method so it takes the element not the ID as the parameter to reduce processing overhead.
Once you use Master Pages, the ids of controls on the client side aren't what you think they are. You should use Control.ClientID when you generate the script.
When using master pages, you need to be careful with the html attribute ID, since .NET will modify this value as it needs to keep ids unique.
I would assume your javascript is applying css styles via ID, and when you are using master pages the ID is different than what is in your aspx. If you verify your javascript is always being added, your answer needs to take into account the following:
ALWAYS set your master page id in page load (this.ID = "myPrefix";)
Any HTML element in your master page will be prefixed by the master page id (i.e.: on the rendered page will be "myPrefix_myDiv")
Any HTML element in your content place holder id will be prefixed with an additional prefix (i.e. myPrefix_ContentPlaceHolderId1_myDiv)
Please let me know if I can clarify anything. Hope this helps!