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Using in your modules and content

imageOne thing that was added in DotNetNuke 6 but hasn’t been covered in great detail is a method called Calling this method is fairly straight forward depending on your need, but before we get into how to call/use the method, let’s talk about what it does first. is a method that gets called via JavaScript and allows you to load up a URL into a modal popup window within your DotNetNuke site. Basically it will take that URL and load it into an IFrame within the current DotNetNuke page.

Want to see in action? When logged into an existing DotNetNuke 6(+) installation, mouse over the MANAGE button for the module and click on the SETTINGS link, that will take you to the Module Settings for that module, and will most likely load up in a Modal window. If it doesn’t, you likely have turned off Modal options in the Admin/Site Settings page.

Now, how about calling the thing?

If you manually wanted to build a link using the method you would create a link that has the following in the HREF attribute'',false,550,950,false)"

Where the arguments are as follows.

  1. The first argument passed to show() is the URL you want to load. You’ll notice I am simply calling a DNN Url with a querystring parameter of popUp=true. That last parameter tells DNN to load the popup skin, which ultimately is a blank skin that has a single ContentPane, all modules from the requested page are loaded into that single pane. You don’t have to call a DNN url, but if you do, you likely want to include the popUp=true to remove the navigation, logo, and other common skin elements. I will do another blog post soon about the popup skin functionality for DNN.
  2. The next argument is if the window should show the Return button at the bottom, in most cases this would be false.
  3. The next option is height of the window, this example would be 550 pixels
  4. The next option is width of the window, this example would be 950 pixels
  5. The next argument is another true/false, this one defines whether the parent page (the page the iframe/window is loaded on top of) should be refreshed after the modal window closes. For example, you would want the page to refresh if the modal window was editing the contents of the parent page, but perhaps not for other reasons.
  6. While I am not using a 6th argument, you can pass in an additional URL, this URL will be called when the window closes, so if you want to redirect someone to another URL after closing the modal window, you would pass in another URL. This argument will only work when argument 5 is true, otherwise the redirect will not occur when the window closes.

One thing to keep in mind though, this code will only work when you have popups enabled in the Site Settings for a portal. Otherwise clicking on the link will do nothing.

So now that you know about dnnmodal.Show, what if you want to let DNN create the links for you? Well there are methods for that.

In the UrlUtils class (DotNetNuke.Common.Utilities.UrlUtils) there is a method called PopUpUrl, with a number of different signatures on it.


Stefan de Groot
Thanks a lot Chris, just what I was looking for!
Stefan de Groot Saturday, July 20, 2013 4:58 AM (link)
Allen Battles
Is there a built in method to return a value from a popup to the parent page?
Allen Battles Thursday, August 29, 2013 3:46 PM (link)
Chris Hammond
Allen, not that I know of
Chris Hammond Thursday, August 29, 2013 4:07 PM (link)
Matt Prose
How can I define the top value for the iframe and or have it load at the top of the page?
Matt Prose Thursday, November 21, 2013 1:03 PM (link)
Hey Chris. Great article and hope you are well. Having an issue ... this above seems to work great for me in all browsers except IE (11 and back). If IE clicking the anchor to open the modal results in a page change and the new page has nothing in it except the single word "false". Any thoughts?

I can give you the URL in a private message if that helps.


Ted Thursday, February 06, 2014 11:25 PM (link)
Chris Hammond
Ted, sorry, this blog post is from 2012, I haven't touched the Modal controls since then
Chris Hammond Friday, February 07, 2014 8:50 AM (link)
No problem Chris. Thanks for taking the time to comment. After copious playing with it last night and this morning I ended up figuring it out. Here's what I found out in case anyone else runs across this issue. Just to recap the above method was working in Chrome, FireFox, and Safari but not in IE 11 (and any of it's compatibility modes) and seemed specific to DNN7. The I was using was in this form:


When I changed it to the following, it magically started working in IE 11 as well as the other browsers mentioned above.


Happy coding everyone!


Ted Krapf
Ted Friday, February 07, 2014 9:56 AM (link)
Todd S
The width and height settings seem to have no effect on the width and height of the modal window. I've changed them and completely removed them and no change.
Todd S Monday, September 29, 2014 6:53 PM (link)
Jaydeep Bhatt
The does not show the "Return" button, in-spite of making 2nd Item 'true'
Please help
Jaydeep Bhatt Thursday, January 15, 2015 2:10 PM (link)
Mark Buelsing
If you are interested in influencing the css of the modal pop-up, view this additional community post.
Mark Buelsing Monday, July 20, 2015 12:15 PM (link)
Dong Liu
In DNN 6.0.1, in which file exists? It throws me an exception in run time but I could not find where this function was called in the install version and the full source codes.
Dong Liu Thursday, February 25, 2016 12:51 AM (link)

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