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MVC Widget Public Properties - List

3 posts, 2 answered
  1. Chip
    Chip avatar
    14 posts
    25 Nov 2013
    02 Oct 2014
    Link to this post

    I have built a bunch of MVC widgets in my project and have a pretty good understanding of them at this point. I have to build a new widget which requires several public properties. My issues is I need these public properties to be in a list: 

     Here is my model - 

    public class HomePageSliderModel
            public List<EP_SliderImageModel> EP_SliderImages { get; set; }  


    public class EP_SliderImageModel
            public string EP_ImageURL { get; set; }
            public string EP_PresentingOrg { get; set; }
            public string EP_ShowTitle { get; set; }
            public string EP_Dates { get; set; }
            public string EP_Link { get; set; }
            public DateTime EP_StartDate { get; set; }
            public DateTime EP_EndDate { get; set; }

     As you can see I need a list of EP_SliderImageModels
    , but I don't know how many EP_SliderImageModel lists I will need. I want to let the user create as many lists as they want. Is this possible in public properties of an MVC widget? The only way to do it now I think is to create a bunch of lists, which would be a finite amount, say six, like this in the controller: 

             public Guid EP_Image1 { get; set; }
            public string EP_ImageURL1 { get; set; }
            public string EP_PresentingOrg1 { get; set; }
            public string EP_ShowTitle1 { get; set; }
            public string EP_Dates1 { get; set; }
            public string EP_Link1 { get; set; }
            public DateTime EP_StartDate1 { get; set; }
            public DateTime EP_EndDate1 { get; set; }

            public Guid EP_Image2 { get; set; }
            public string EP_ImageURL2 { get; set; }
            public string EP_PresentingOrg2 { get; set; }
            public string EP_ShowTitle2 { get; set; }
            public string EP_Dates2 { get; set; }
            public string EP_Link2 { get; set; }
            public DateTime EP_StartDate2 { get; set; }
            public DateTime EP_EndDate2 { get; set; }

            public Guid EP_Image3 { get; set; }
            public string EP_ImageURL3 { get; set; }
            public string EP_PresentingOrg3 { get; set; }
            public string EP_ShowTitle3 { get; set; }
            public string EP_Dates3 { get; set; }
            public string EP_Link3 { get; set; }
            public DateTime EP_StartDate3 { get; set; }
            public DateTime EP_EndDate3 { get; set; }


     Then take these public properties and make them each a EP_SliderImageModel then add to List<EP_SliderImageModel> EP_SliderImages, Of course this means a finite amount of EP_SliderImageModels and a pretty ugly long MVC Widget designer. 

    Please give me any insight you have on a better way to go about this. THANKS!

  2. Peter
    Peter avatar
    36 posts
    30 Jun 2017
    03 Oct 2014
    Link to this post
    Hi Chip,

    Thank you for the detailed explanation. At the end of the day, it is all about empowering the non-technical folks to do content changes, so I completely understand your question.

    It is definitely possible, so let's see how we, the developers, can achieve that for the non-technical users.

    Before going to any sort of instructions, I want to ask you why don't you create such a Dynamic Module that represents the structure you are requesting? You will have all those items managed in the backed of Sitefinity and you will achieve that requirement in no time. Please check the example on the link here.

    This is really aligned with the best practices and you can configure really slick UI for the users. Is there a reason for you not to choose that approach?

    Speaking on your question though, I am afraid it will take considerable time for development. You would need to create some dynamic UI in the widget designer that allows to add the items as you have requires. I am thinking of using something like the Kendo UI list example, so you can add more items to the collection (link here).

    In your case, you would need to add this to the next level to reuse the Image selector and all the other fields and hence the complexity - it will need a lot of client side logic for the dynamic UI, but it is definitely possible and I have seen some developers doing something similar.

    Please review the options and let me know on the direction you want to pursue here.

    Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Sitefinity CMS Ideas&Feedback Portal and vote to affect the priority of the items
  3. Chip
    Chip avatar
    14 posts
    25 Nov 2013
    06 Oct 2014 in reply to Peter
    Link to this post

    Thanks Peter! That is the direction I needed. I created a custom module with the data items. Everything is going well except for one thing. I can't seem to retrieve an image (related data item) from the custom module. Here is the code in a nutshell: 

     var heroImageCollection = dynamicModuleManager.GetDataItems(mainPageSliderType).Where(i => i.Status == ContentLifecycleStatus.Live && i.GetValue<string>("Section") == testThisString);

                foreach (var heroImage in heroImageCollection)
                        var relatedImage = heroImage.GetRelatedItem("Image");
                                new SliderImageModel
                                    ImageURL = relatedImage.Url,
                                    TopText = heroImage.GetValue("TopText").ToString(),
                                    MainTitle = heroImage.GetValue("MainTitle").ToString(),
                                    BottomText = heroImage.GetValue("BottomText").ToString(),
                                    Link = heroImage.GetValue("Link").ToString()

    I have tried everything I can find to get the image url including: 

    var relatedImage = heroImage.GetRelatedItem(heroImage, "Image", ContentLifecycleStatus.Live);

    var relatedImage = (Telerik.Sitefinity.Libraries.Model.Image
    )heroImage.GetRelatedItem(heroImage, "Image", ContentLifecycleStatus.Live);

     var relatedImage =

     There is no option for GetRelatedItems, it throws an error. I have been fighting this for a while now and searching with no luck. 

3 posts, 2 answered