Learn More





DNN Community Blog

The Community Blog is a personal opinion of community members and by no means the official standpoint of DNN Corp or DNN Platform. This is a place to express personal thoughts about DNNPlatform, the community and its ecosystem. Do you have useful information that you would like to share with the DNN Community in a featured article or blog? If so, please contact .

The use of the Community Blog is covered by our Community Blog Guidelines - please read before commenting or posting.

Razor Tip of the Day - Share Sub-Views Across Views (200)

Very often you'll have a larger system containing 2-10 views, which then again need to re-use parts of each other. For example, re-using an "Author" template in a blog for the list, details, search-by-author and search-by-tag views. Here's how.

The Basic Partial-Template/View

In general, you just place your sub-snippet in an own file (remember to prefix the name with a "_" for security reasons). If this partial template doesn't need any parameters passed in, then it's just like any razor file. Here's an example:

Extract of the _pager.cshtml

        <ul class="pagination">
            <li @Html.Raw(pageNumber < 2 ? "class='disabled'" : "")>
                <a href="@lib.LinkToPageNumber(pageNumber - 1)" title="Zur&uuml;ck">
                    <span aria-hidden="true">&laquo;</span>
            @for (var i = 0; i < pageCount; i++)
                <li @Html.Raw(pageNumber == (i + 1) || (pageNumber == 0 && i == 0) ? "class='active'" : "")>
                    <a href="@lib.LinkToPageNumber(i + 1)">@(i + 1)</a>
            <li @Html.Raw(pageNumber == pageCount ? "class='disabled'" : "")>
                <a href="@lib.LinkToPageNumber(pageNumber == 0 ? 2 : pageNumber + 1)" title="Weiter">
                    <span aria-hidden="true">&raquo;</span>

      Passing in Parameters or Data

      There are two different ways the sub-template can pick up data.

      1. In the first case, the sub-template just "knows" what data is to be used, based on the situation / master template it's in. For example the blog-app has a pager sub-template, which just expects that the views Data["Pager"] should contain everything it needs.
      2. In the second case the sub-template should be used like a function, expecting a few parameters (like data, color, repeater-parameters etc.) and would then behave differently. In the blog-app this happens for the list-item template, which shows 1 blog-post in a list-view. So this item is called for every list-item, and should of course receive the data to be rendered in the call

      To the right you see the calling code, once with parameters (the post), once without. The two snippets below show

      1. Part of the _pager.cshtml, which just expects global data
      2. Part of the _list-item.cshtml, which needs to know which item to render

      part of _pager.cshtml expecting global data

        @* Paging Bar *@
        	// retrieve paging infos from the data-stream called "Paging"
            var pageInfo = AsDynamic(Data["Paging"]).First();
            int pageNumber = (int)pageInfo.PageNumber;
            int itemCount = (int)pageInfo.ItemCount;
            int pageSize = (int)pageInfo.PageSize;
            int pageCount = (int)Math.Floor((decimal)(itemCount + pageSize - 1) / pageSize);
        @if (itemCount > pageSize)

        Part of the _list-item.cshtml expecting parameters

          @{	var lib = CreateInstance("_library.cshtml"); }
          	var post = PageData["Post"];
              var author = (post.Author.Count > 0) ? post.Author[0] : lib.unknownAuthor;
              <article class="app-blog-item">
                  <div class="app-blog-col1 sc-element">


            So that's it. In case you liked this, you may also like the tip on sharing functions / properties across views

            Love from Switzerland,

            Daniel Mettler grew up in the jungles of Indonesia and is founder and CEO of 2sic internet solutions in Switzerland and Liechtenstein, an 20-head web specialist with over 800 DNN projects since 1999. He is also chief architect of 2sxc (see forge), an open source module for creating attractive content and DNN Apps.

            Read more posts by Daniel Mettler


            There are currently no comments, be the first to post one.

            Comment Form

            Only registered users may post comments.


            2sic Daniel Mettler (124)
            Aderson Oliveira (15)
            Alec Whittington (11)
            Alex Shirley (10)
            Andrew Nurse (30)
            Anthony Glenwright (5)
            Antonio Chagoury (28)
            Ash Prasad (21)
            Ben Schmidt (1)
            Benjamin Hermann (25)
            Benoit Sarton (9)
            Beth Firebaugh (12)
            Bill Walker (36)
            Bob Kruger (5)
            Brian Dukes (2)
            Brice Snow (1)
            Bruce Chapman (20)
            Bryan Andrews (1)
            cathal connolly (55)
            Charles Nurse (163)
            Chris Hammond (203)
            Chris Paterra (55)
            Clinton Patterson (28)
            Cuong Dang (21)
            Daniel Bartholomew (2)
            Dave Buckner (2)
            David Poindexter (3)
            David Rodriguez (2)
            Doug Howell (11)
            Erik van Ballegoij (30)
            Ernst Peter Tamminga (74)
            Geoff Barlow (6)
            Gifford Watkins (3)
            Gilles Le Pigocher (3)
            Ian Robinson (7)
            Israel Martinez (17)
            Jan Blomquist (2)
            Jan Jonas (3)
            Jaspreet Bhatia (1)
            Jenni Merrifield (6)
            Joe Brinkman (269)
            John Mitchell (1)
            Jon Henning (14)
            Jonathan Sheely (4)
            Jordan Coopersmith (1)
            Joseph Craig (2)
            Kan Ma (1)
            Keivan Beigi (3)
            Ken Grierson (10)
            Kevin Schreiner (6)
            Leigh Pointer (31)
            Lorraine Young (60)
            Malik Khan (1)
            Matthias Schlomann (15)
            Mauricio Márquez (5)
            Michael Doxsey (7)
            Michael Tobisch (3)
            Michael Washington (202)
            Mike Horton (19)
            Mitchel Sellers (28)
            Nathan Rover (3)
            Navin V Nagiah (14)
            Néstor Sánchez (31)
            Nik Kalyani (14)
            Peter Donker (52)
            Philip Beadle (135)
            Philipp Becker (4)
            Richard Dumas (22)
            Robert J Collins (5)
            Roger Selwyn (8)
            Ruben Lopez (1)
            Ryan Martinez (1)
            Salar Golestanian (4)
            Sanjay Mehrotra (9)
            Scott McCulloch (1)
            Scott S (11)
            Scott Wilkinson (3)
            Scott Willhite (97)
            Sebastian Leupold (80)
            Shaun Walker (237)
            Shawn Mehaffie (17)
            Stefan Cullmann (12)
            Stefan Kamphuis (12)
            Steve Fabian (31)
            Timo Breumelhof (24)
            Tony Henrich (3)
            Torsten Weggen (2)
            Vicenç Masanas (27)
            Vincent Nguyen (3)
            Vitaly Kozadayev (6)
            Will Morgenweck (37)
            Will Strohl (163)
            William Severance (5)
            Try Evoq
            For Free
            Start Free Trial
            a Demo
            See Evoq Live
            CONTACT US
            Need More Information?
            EMAIL US