Insert html title and meta description server side in ASP.NET? - c#

I am using IIS 7 and ASP.NET.
What I would like to do is being able to server side change the title and the meta description of my index.html file, before it is shown in a webbrowser.
<title>Replace with text here on server</title>
<meta name="description" content="Replace with text here on server">
I understand I can create either a http handler, http module or http filter in ASP.NET to do this hook up on the request. I found examples of appending html this way, but none showing how to replace/insert text for existing html.
I imagine pseudo code could look like this:
Process_Request(file, content)
{
if (file == index.html)
{
content.replace("<title>xxx</title>", "<title>This is what I want title to be</title>"));
...same replace for description
}
return content to client;
}
How can I do this?
SOLUTION
I created a content parser module based on the code and example from this article. Unfortunately the author left out the part about adding the module to web.config, so you should remember to implement that part yourself.
What I did was to put the title and description change into the Write method based on the url segment and a database lookup.

Server side, you can set the Page.Title in the Master page's Page_Load event to change the title.
Also server side, use the HtmlMeta class to change meta properties as described here: https://msdn.microsoft.com/en-us/library/system.web.ui.htmlcontrols.htmlmeta(v=vs.110).aspx
In Angular you can use the setTitle method of the Title service in Browser platform: https://angular.io/guide/set-document-title
Also Angular Browser platform, Use the Meta service addTag method to manipulate meta tags in Angular: https://angular.io/api/platform-browser/Meta

Related

ASP.Net MVC Generate DNS Prefetch Tags

Is there a way to find all the src="" urls when rendering a ASP.net MVC page in the view to then generate DNS prefetch tags on the fly?
https://www.chromium.org/developers/design-documents/dns-prefetching
If I understood correctly I can tell you the following:
Option #1: (Not a pretty solution but would work.)
NOTE: for this try to use simple Javascript and not rely on JQuery or other (since then you still need to "load" the .JS file for that and that is ruining the point of your question.
Process your src/href or some other predefined property tag with some kind of "OwnLogic" to define the "base target",
but in a way that the browser would not be able to initiate the request to obtain that image or other file.
Example:
<img url="" class="DNS_BaseTarget" DNS_BaseTarget="smiley.gif||myCDNPointerInfo" alt="">
Then, with javascript, get a list of all elements that uses the class DNS_BaseTarget and then read the property value and update the "src" tag.
At the same time you can inject by javascript inject all the '<link rel="dns-prefetch" href="https://cdn.yourTargetDomain.com">' that you will use based on the information you just processed.
I did not tested this concept, so "lag" or some sort of delay in the client might be expected (but maybe not noticeble by the user).
Option #2:
The View Result Execution Process (in MVC life cycle) tell us that the method 'Render()' is the last one to be executed.
With this being said, you can create your own custom override logic
Example: intercept view rendering to add HTML/JS on all partial views?
How to intercept view rendering to add HTML/JS on all partial views?
With this concept of trying to "process" the final html before sending it to the user, you could somehow "parse" the file.... try to get all the 'src/href' and then
inject all the '<link rel="dns-prefetch" href="https://cdn.yourTargetDomain.com">' that you will use.

How can i set tiny_mce content with c sharp

I have a textarea tiny_mce such as
<textarea id="Textarea1" name="abc" rows="15" cols="80" style="width: 80%">
</textarea>
I want to set it in page load.
If i add runat server , this change to "pure textarea" that is not tiny_mce control.
How can i set content from c sharp?
Keep in mind that TinyMCE is a JavaScript-based editor that runs 100% in the client - there are no server side APIs to talk to TinyMCE.
The API to load content is a JavaScript API that runs in the browser:
https://www.tinymce.com/docs/api/tinymce/tinymce.editor/#setcontent
If you want to use this API you need to pass the data from the server to the browser and then call setContent() with that data. You can throw the data into a JavaScript variable, make an AJAX call to fetch the data as the page loads - you have several choices.
If you want to do this server side the only option is to place the HTML inside the <textarea> tag. Something like:
<textarea>
<p>text &lt; text</p>
</textarea>
A major complication with this approach is that the HTML you place in the <textarea> needs to be escaped as in my example above. This is not a requirement when using the setContent() API.
UPDATE: If refreshing sometimes make this work you likely have a timing issue - you are likely trying to use TinyMCE APIs before the editor is initialized. If your goal is to load content when TinyMCE is loaded you can use something like this in the TinyMCE configuration:
setup: function (editor) {
editor.on('init', function () {
// Your AJAX call to get the content
this.setContent(variableWithTheContent);
});
}
This function will not get called before the editor is initialized so you can be sure that APIs like setContent() will work at that point.

c# add page to onenote from template

New to OneNote development. I have an app that I want to add a new page based on the template that is the default in this section of my notebook.
I want to take some text from a textbox and name the generated new page to that text. I don't need to do anything else with the page from the app Any ideas would be much appreciated.
You can use the Onenote API to programmatically recall the template page's content as html See http://dev.onenote.com/docs#/reference/get-pages/v10menotespagesidcontentincludeids on how to do this.
Once you have the template's html, you can make the title tag with the title you get from your web form . eg: my title and make a POST request to the section. See http://dev.onenote.com/docs#/reference/post-pages/v10menotessectionsidpages
That should take care of it.

Modifying rich content on home page programmatically

I am provisioning site collections programmatically in SP2010. The process is working fine but I need to be able to customize some text on the home page that is contained in rich text (not in a web part). Is there a way to grab that HTML code and modify it from code? For instance, embedded within the home page, I have a title and a paragraph of text. I'd like to customize the title based on one of the input values provided from the provisioning request. Is it possible to do this? Any suggestions would be appreciated!
You can access the content area as follows:
PublishingWeb pw = null;
//"web" is your SPWeb, didn't include using statement for your SPSite/SPWeb in this sample
if (PublishingWeb.IsPublishingWeb(web))
{
pw = PublishingWeb.GetPublishingWeb(web);
}
//todo: add some handling here for if web is not a publishingWeb
//assuming your home page is the default, if not - get the correct page here
SPFile defaultpage = pw.DefaultPage;
if (!(defaultpage.CheckOutType == SPFile.SPCheckOutType.None))
{
//programatically creating this stuff, so cancel any unexpected checkouts
defaultpage.UndoCheckOut();
}
defaultpage.CheckOut();
//Field you want to add HTML in (Alternatively, retreive existing data and modify the HTML)
defaultpage.ListItemAllFields["PublishingPageContent"] = "string of HTML";
defaultpage.ListItemAllFields.Update();
defaultpage.CheckIn("My Comment");

Why does it make a difference where I include the jQuery script file?

On my master page (for all pages in my site) I have a ToolkitScriptManager.
On my content page, there are a series of hyperlinks and divs for collapsible functionality.
The code to show/hide the panels work like the following:
$(document).ready(function() {
// Hookup event handlers and execute HTML DOM-related code
$('#nameHyperLink').click(function() {
var div = $('#nameDiv');
var link = $('#nameHyperLink');
if (div.css('display') == 'none') {
link.text('Hide Data');
div.show('100');
}
else {
link.text('Show Data');
div.hide('100');
}
});
});
If I include a ScriptReference to the jQuery 1.4.2 file in the toolkitscriptmanager, the javascript code is executed incorrectly on the page (only the text for the hyperlink is changed, the div is not actually shown.) However, if I don't include the jQuery file in the ToolkitScriptManager and instead include it in the content page, it works correctly.
I'm a Javascript/jQuery newbie, and this makes no sense at all. What's going on here?
Positioning of the script include is important for the jQuery ref. If you look at your generated source I would bet the tag is below the script function(). You should make sure that the jQuery reference comes as early as you can get it in the page source.
Try moving the jQuery library reference into the head of your master page, that should work. Otherwise post up some source!
Like Tj says... should probably be in the head section of your master page. Also, it's nice to link to Google's version of this library, because chances are your users will already have it cached. For instance, look at the source for this very page.
The two most probable causes here are $ not being defined yet (see Tj's answer) and $ getting defined by another library, such as prototype.
I would highly suggest you look into using Firebug's javascript debugger, or at least take a look at Firefox's built in error console (Tools -> Error console). That will give you a much better clue what is going on other than "it's not working."

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