I have a Hyperlink control on an .ascx that looks like this:
<asp:HyperLink ID="hDocument" NavigateUrl="http://www.google.com" Text="Delegate Approval" Target="_blank" runat="server"></asp:HyperLink>
However, when I navigate to my SharePoint page where this URL is supposed to be displayed, the hyperlink is not clickable and there is no href in the HTML anchor tag () like so:
<a id="ctl00_ctl40_g_65ace0cb_fdf4_4d40_ae31_9736b2d39022_gvLevel1Approvals_ctl02_hDocument" target="_blank">Delegate Approval</a>
I place a normal HTML anchor under the Hyperlink control and that one works fine. I have no idea why the Hyperlink control doesn't produce a href attribute when it renders.
Edit:
Here's the original code:
<asp:HyperLink ID="hDocument" runat="server"></asp:HyperLink>
code behind
HyperLink hDocument = (HyperLink)e.Row.FindControl("hDocument");
hDocument.Text = "Delegate Approval";
hDocument.NavigateUrl = // builiding URL here;
hDocument.Target = "_blank";
I had the same issue and could solve it only by setting the NavigateUrl in Code Behind (in Page_Load).
So our situation with the was it would work only intermittently but 95% of the time it didn't work. Everything else worked fine: building the URL in the code behind, setting the link text, everything. We could not figure out why the href would not show up on the page on the client browser. In the end I eventually switched to using a regular HTML anchor tag and added in the System.Web.UI.HtmlControls namespace to find the anchor and modify that in the code behind.
I found the solution.
In VB.net
HyperLink1.Attributes.Add("href", "http://www.clarin.com")
In my situation Visual Studio converted ASPX to HTML5.
When VS converts the document to HTML - if you perform some debugging - you will see:
<a NavigateURL="someurl" blablabla
but NavigateURL is not found in HTML.
You MUST replace the attribute NavigateURL with href.
I do not know if this is a compiler error, but it was the only reasonable solution I could find.
Related
I am trying to bind a HyperLink control's NavigateUrl property in the markup using a server tag like so:
<asp:HyperLink ID="lnkHelp" runat="server" NavigateUrl='<%#ConfigurationManager.AppSettings("HelpUrl")%>'>Text</asp:HyperLink>
The IDE recognizes it and I even get intellisense, but the tag ends up rendering without the href attribute. I've discovered <%$ AppSettings:HelpUrl%> and I have started using this, but I don't get intellisense with it. That's not a deal breaker, but intellisense is just nice. That's a question for another time, though, so I am mainly just wanting to know why using <%# %> causes the href attribute not to render.
You should use like this
NavigateUrl='<%$ ConfigurationSettings.AppSettings["HelpUrl"] %>'
I need to display dynamic created html in aspx(server side html);
I tried to use Iframe but it will not displaying anything ; it will not work because of security reasons ;
Is there is any controls that will display html page? Dynamic html have its on css and javascripts so I can’t use html text box controls.
If anyone have solution please help
Thanks
Since your dynamic page has its own CSS & Javascript, I'm assuming it's not written to coexist with its host page. I'm also assuming that when you tried to use the iFrame you just tried to write straight to it from the containing page.
I would suggest moving your code that generates the HTML to a separate ASPX page and referencing that page as the source of your iFrame or rewriting your CSS & Javascript so it will coexist and using a DIV.
Also, it's sort of hard to come up with a workable solution without you showing some of the code you have currently.
Have a look at the
<asp:Literal>
control. There's an example here: Set ASP Literal text with Javascript
-- EDITED 03/05/2012 --
Simple example of an asp.net literal control in action:
.aspx code
<asp:Literal ID="MyLiteral" runat="server" />
.vb code behind
Dim k As String
k = "<table style=""border: 1px solid red;""><tr><td>Cell 1</td></tr><tr><td>Cell 2</td></tr></table>"
MyLiteral.Text = k
If I compile this in VS2008 I get a two row table with a red border in IE.
I found the answer!! Use UFRAME!! It's simple and easy!! uframe.codeplex.com
I have a hyperlink that in certain cases I want to change to show a jquery popup, but I'm having a strange problem when doing it on a master page. The following works in a regular page:
hyp1.NavigateUrl = "#notificationPopup";
Which renders as:
<a id="ctl00_hyp1" href="#notificationPopup">Example</a>
This is exactly what I want. The problem is with the exact same code on a hyperlink on the master page it renders as:
<a id="ctl00_hyp1" href="../MasterPages/#notificationPopup">Example</a>
It looks like it might be running the navigateUrl through ResolveClientUrl() or something when I'm setting it on the master page. I've tried swapping the <asp:hyperlink for a <a href runat=server, but the same thing happens.
Any ideas?
There is a note on MSDN Control.ResolveClientUrl method description.
The URL returned by this method is
relative to the folder containing the
source file in which the control is
instantiated. Controls that inherit
this property, such as UserControl and
MasterPage, will return a fully
qualified URL relative to the control.
So the behavior of master page in your exampe is fully predictable (although this is not a very comfortable to work with). So what are the alternatives?
The best one is to set the <a> as a client control (remove runat="server"); should work like a charm even in a master page:
Example
In the case if this control should be server side only: you could just build an URL from your code behind by using UriBuilder class:
UriBuilder newPath = new UriBuilder(Request.Url);
// this will add a #notificationPopup fragment to the current URL
newPath.Fragment = "notificationPopup";
hyp1.HRef = newPath.Uri.ToString();
Create a hidden field on your form and set the value to where you want to navigate / the url of the hyperlink instead of the hyperlinks navigate url. Then call the onclick method of the hyperlink in javascript and set the hyperlink there before the browser does the actual navigation.
<html><head><title></title></head>
<script type="text/javascript">
function navHyperlink(field)
{
field.href = document.getElementById('ctl00_hdnHypNav').value;
return true;
}
</script>
<input type="hidden" id="hdnHypNav" value="test2.html" runat="server"/>
<a href="" onclick="navHyperlink(this);" >click here</a>
</html>
Code behind would be:
hdnHypNav.value = "#notificationPopup";
You could also just try setting the url after the postback with below code, i.e. replace your code behind line with this one but I am not sure if it will work...
ScriptManager.RegisterStartupScript(this,this.GetType(),"SetHyp","$('ctl00_hyp1').href = '#notificationPopup';",True)
I found another way to solve the problem.
hyp1.Attributes.Add("href", "#notificationPopup");
Seeing as the whole reason I replaced my static hyperlink with a runat="server" one was to benefit from automatic resource-based localization, none of these answers served my needs.
My fix was to enclose the hyperlink in a literal:
<asp:Literal ID="lit1" runat="server" meta:resourcekey="lit1">
Example
</asp:Literal>
The downside is if you need to programmatically manipulate the link, it's a bit more annoying:
lit1.Text = String.Format("Example", HttpUtility.HtmlAttributeEncode(url));
I am trying to render a simple hyperlink that links to a named anchor within the page, for example:
scroll to down
<a name="namedAnchor">down</a>
The problem is that when I use an ASP.NET control like asp:HyperLink or HtmlAnchor, the href="#namedAnchor" is rendered as href="controls/#namedAnchor" (where controls is the subdirectory where the user control containing the anchor is). Here is the code for the control, using two types of anchor controls, which both have the same problem:
<%# Control Language="C#" AutoEventWireup="true" CodeBehind="Test.ascx.cs" Inherits="TestWebApplication1.controls.Test" %>
HtmlAnchor
<asp:HyperLink NavigateUrl="#namedAnchor" runat="server">HyperLink</asp:HyperLink>
The generated source looks like:
HtmlAnchor
HyperLink
I really just want:
HtmlAnchor
HyperLink
I am using the HtmlAnchor or HyperLink class because I want to make changes to other attributes in the code behind. I do not want to introduce a custom web control for this requirement, as the requirement I'm pursuing is not that important enough to justify abandoning the traditional ASP.NET link controls. It seems like I should be able to use the ASP.NET link controls to generate the desired link.
Instead of using the NavigateUrl property, just use the href property
<asp:HyperLink href="#namedAnchor" runat="server">HyperLink</asp:HyperLink>
To set the HREF property in codebehind:
HyperLink link = new HyperLink();
link.Attributes.Add("href", "#" + doc.DocumentID.ToString());
link.Text = doc.DocumentNumber;
This will give you:
blah blah
Set it as a custom property on the link:
HyperLink link = new HyperLink();
link.Attributes.Add("name", doc.DocumentID.ToString());
link.Text = doc.DocumentNumber;
This will give you:
<a name="111">blah blah</a>
If you must use NavigateUrl Property, which is sometimes necesary then you can use:
hypID.NavigateUrl = HttpContext.Current.Request.Url.AbsoluteUri & "#MyAnchor"
After trying to understand why client code is not rendered in a page (injected by user control) I found this link, it turns out you must have a form tag for it to work (Page.RegisterClientScriptBlock did declare this but ClientScriptManager.RegisterClientScriptBlock which I use does not say anything regarding this).
I am using Visual studio 2005.
Does anyone know if this has been solved?
Edit:
To clarify, I want my control to add javascript code to the head section of the page without having to use the
<form runat="server"
I have tried adding it using:
HtmlGenericControl x = new HtmlGenericControl("script");
x.InnerText = "alert('123');";
Page.Header.Controls.Add(x);
But this did not work for me.
As far as I know this functions the same in current versions, you can test it very simply though.
Update
per discussion in the comments, the only "workaround" that I could think of would be for your to manually insert the script into the "head" section of the page on your own, using a runat="server" declaration on the Head element.
Got it!
My mistake was not doing it in the OnPreRender method (I used the Render method).
Now all that is needed is - like Mitchel Sellers wrote, set the header to runat server and than add to it's controls:
HtmlGenericControl x = new HtmlGenericControl("script");
x.InnerText = GetScriptSection();
Page.Header.Controls.Add(x);
Thanks for pointing me to the right direction!
The MSDN Page for registerclientscriptblock here says:
The client-side script is emitted just
after the opening tag of the Page
object's <form runat= server> element.
The script block is emitted as the
object that renders the output is
defined, so you must include both tags
of the <script> element.
If you do not want to include a form, than you will basically need to build your own implementation of it.
Minor clarification for anyone seeing this:
The form tag must have the runat="server" attribute set, e.g.
<form id="theform" runat="server">
Just placing a regular HTML form tag in the page will not help.