With the Razor view engine, I just want to convert a path like this:
src="<%=MyImageServer %>image1.jpg"
into
src="#MyImageServer[PROBLEM_HERE]image1.jpg"
You see the problem... Any Suggestion?
Note: MyImageServer is a variable with a path.
Wrap in parentheses:
src="#(MyImageServer)image1.jpg"
But you probably want to avoid such tag soup in your views and write a custom HTML helper:
#Html.Image("image1.jpg")
which will take care of generating the proper image.
Related
How can I find an image from a content? I have a method in aspx I am calling this method for remove all html tags like this: Usage.DeleteHtml(Eval("content").ToString())
but I don't want delete img tag from content.. I should find the first image I will show it on my page.. like this:<img src="Usage.FindImage("content")" />
but couldn't write a method for finding image..
my DeleteHtml method:
public static string DeleteHtml(string text)
{
string mystr= Regex.Replace(text, #"<(.|\n)*?>", string.Empty);
return mystr;
}
I assume that your task is essentially retrieving the first image in document.
If your HTML document is a well-formed XML-document as well, you could easily solve your task using XPath.
More on XPath in .NET here.
XPath query to retrieve the first image's URL will look like this:
//img[1]/#src
Otherwise, if you really need to strip HTML, it's a duplicate to a couple of questions already:
Using C# regular expressions to remove HTML tags
How can I strip HTML tags from a string in ASP.NET?
How to clean HTML tags using C#
Short answer: use Html Agility Pack.
How can I get the current view name regarding to current URL, in asp.net MVC 3 using Razor engine?
No idea why you would need to get the current view name but you could use the VirtualPath property inside a view. Normally it's more useful to know the current action or controller. But anyway, here's how to get the current view name:
#VirtualPath
and if you wanted to get only the filename:
#Path.GetFileName(Server.MapPath(VirtualPath))
and without the extension:
#Path.GetFileNameWithoutExtension(Server.MapPath(VirtualPath))
I've also tested this code, and I could do something with it.
But, I'm not sure if is this a good solution or not.
For example, I need to detect the Contacts view located in Home directory. So I wrote:
if (#Request.RawUrl == "/Home/Contacts")
{
// do something
}
You can get it from RequestContext.RouteData
specifically, its Values collection contains "controller" and "action" keys
i.e.
RequestContext.RouteData.Values["controller"]
RequestContext.RouteData.Values["action"]
ASP.NET Core's equivalent:
#ViewContext.ExecutingFilePath
Output is like this:
/Views/Shared/String.cshtml
The rendering of a view may involve one or more files (e.g. _ViewStart, Layouts etc).
This property contains the path of the file currently being rendered.
ViewContext.ExecutingFilePath Property
I have an ASP.NET web forms site with a rather large menu. The HTML for the menu is dynamically generated via a method in the C# as a string. I.e., what is being returned is something like this:
<ul><li><a href='default.aspx?param=1&anotherparam=2'>LINK</a></li></ul>
Except it is a lot bigger, and the lists are nested up to 4 deep.
This is written to the page via a code block.
However, instead of returning a flat string from the method I would like to return it as formatted HTML, so when rendered it looks like this:
<ul>
<li>
<a href='default.aspx?param=1&anotherparam=2'>LINK</a>
</li>
</ul>
I thought about loading the html into an XmlDocument but it doesn't like the & character found in the query strings (in the href attribute values).
The main reason for doing this is so I can more easily debug the generated HTML during development.
Anyone have any ideas?
Maybe you can work with an HtmlTextWriter? It has Indenting capabilities and it may actually be a cleaner thing as you could write straight into the output stream, which should be more "in the flow" than generating a string in memory etc.
Is there a reason you want to do this? This implicitly minified HTML will perform slightly better anyway. If you do still need to render the HTML for pretty display, you will either need to incorporate indentation into the logic that generates the output HTML or build your content using ASP.NET controls and then call Render().
Try loading the HTML into the HTML Agilty Pack. It is an HTML parser that can deal with HTML fragments (and will be fine with & in URLs).
I am not sure if it can output pretty printed (what you call "formatted") HTML, but that would be my first approach.
I like to use format strings for this sort of thing, your HTML output would be generated with;
String.Format("<ul>{0}\t<li>{0}\t\t<a href='{2}'>{3}</a>{0}\t</li>{0}</ul>",
System.Environment.NewLine,
myHrefVariable,
myLinkText);
I am currently writing a small templating system in ASP.NET to allow users to add content. For example, the user can enter the string (variable type is string).
topHeader[x] = "They think it's all over. It is now!";
However, one change that's needed is the ability to add some basic HTML tags within this content, so the following can be done
topHeader[x] = "They think it's all over. <strong>It is now!</strong>";
or
topHeader[x] = "They think it's all over. <a title="Football News" href="URL">It is now!</a>";
If you add such things into strings now they are not formatted as HTML, but I want to somehow escape them so that they can be. Naturally I've looked on the Internet for the answer, but as Razor is fairly new there's not much out there to help me out.
Anyone have an idea of how to do this?
You need to create an IHtmlString implementation holding your HTML source.
Razor plans to have a helper method to do this for you, but, AFAIK, it doesn't yet, so I believe you'll need to create your own class that implements the interface and returns your HTML from the GetHtmlString() method.
EDIT: You can use the HtmlString class.
You can either change your topHeader dictionary to hold IHtmlStrings instead of Strings, or you can leave your code as is, but wrap it in an HtmlString in the Razor view:
<tag>#new HtmlString(topHeader[x])</tag>
Make sure to correctly escape any non-HTML special characters.
The helper method they added is called Html.Raw() and it is much cleaner.
Here is an example:
#Html.Raw("Hello <a>World</a>!")
SLaks is right, but you don't need to write your own implementation of IHtmlString, there's one built in to System.Web called HtmlString. So:
topHeader[x] = new HtmlString("They think it's all over. <a title=\"Football News\" href=\"URL\">It is now!</a>");
Should do the trick.
got this actionlink:
<%= Html.ActionLink("Corian® Worktops", "Index", "Corian")%>
the word corian has to carry the registered symbol or the word can not be used, but it seems to process, i know i could just write this as a normal href but it kinda defeats the object if there is another solution.
has any tried and successfully caried something like this out?
thanks
It works normally
<%= Html.ActionLink("RegistededMark®", "Action")%>
Use the normal ® symbol but make sure the font in HTML displays it correctly.
I do not know why but having static text in the views gives me the chills. I would rather suggest that you use a resource provider to fill in your link text. That way you will not be bothered by the html encoding stuff.