welcome to XRM blog

Keep in touch with latest CRM/ERP articles

To remain competitive your organisation must be efficient across the business process spectrum. To do so you need to take sound decisions based on a balance between the cost and risk. To do so you will be heavily dependent on your content management in itself needs...

image
Blog

GENERATING A DYNAMIC LISTVIEW USING JSON IN XAMARIN FORMS

By Abhay Choudhary on 3/24/2021

We have seen examples earlier where we need to generate a dynamic form UI, from  a JSON, that we read via WEB API using API calls, the same technique can be applied to generate a ListView.

Why do we need a Dynamic ListView?

There are times when we cannot completely know what kind of data we may acquire using API calls, we may have a limited idea of the overall model and the UI, where there are some definite Names such as Alias, Name and there might be some Boolean fields this data is stored in a UI JSON. But we never know the value that are stored in those Name/Value pairs

The key steps of this technique are:

1) We will read and deserialize the JSON.
2) Create the Models for the data and the UI.
3) Create the DataTemplate in C#.
4) Add the DataTemplate to the ListView.

1) Read the JSON

This is how we read a JSON using filing handling, we took this route just to bring the API into the project and for demonstrating our main functionality, usually we will use a Web API to get the JSON, here we store both our JSON in a string field and then deserialize it.   


 

2) Create the Models for the Data and UI

We Add a new class file in our DynamicListUI project where we create the corresponding models for both the lists.

3) Create a DataTemplate using C#

4) Add the DataTemplate to the Listview.

This will add the data template to the listview.

After completing the final step the result will look like this:

Obviously, we can use frames and make this more elegant looking, but this is the way we actually generate a dynamic list, we can also added sort and search functionalities on this but, that will be demonstrated in another post.



C#
JSON
UI
WebAPI
Blog Calendar
Blog Calendar List
2021 Sep  2  2
2021 Aug  4  4
2021 Jul  7  4
2021 Jun  37  6
2021 May  12  2
2021 Apr  25  3
2021 Mar  30  5
2021 Feb  57  7
2021 Jan  120  9
2020 Dec  57  7
2020 Sep  37  3
2020 Aug  101  3
2020 Jul  66  1
2020 Jun  28  3
2020 Apr  15  3
2020 Mar  11  2
2020 Feb  23  5
2020 Jan  23  7
2019 Dec  15  4
2019 Nov  12  1
2019 Jan  33  3
2018 Dec  36  4
2018 Nov  66  3
2018 Oct  12  3
2018 Sep  435  11
2018 Aug  6  2
2018 Jun  11  1
2018 Jan  58  2
2017 Sep  564  5
2017 Aug  17  1
2017 Jul  17  2
2017 Jun  54  2
2017 May  21  1
2017 Apr  33  2
2017 Mar  120  4
2017 Feb  476  4
2016 Dec  185  3
2016 Nov  443  8
2016 Oct  254  10
2016 Sep  366  6
2016 Aug  39  1
2016 Jun  1794  6
2016 May  104  3
2016 Jan  71  2
2015 Dec  392  6
2015 Nov  4  1
2015 Oct  13  1
2015 Sep  1397  6
2015 Aug  13  1
2015 Jul  127  2
2015 Jun  10  1
2015 May  20  1
2015 Apr  28  3
2015 Mar  78  3
2015 Jan  5281  4
2014 Dec  17  1
2014 Nov  2230  4
2014 Oct  64  1
2014 Sep  106  2
2014 Aug  4841  1
2014 Jul  46  2
2014 Apr  2491  12
2014 Mar  294  19
2014 Feb  240  8
2014 Jan  1510  16
2013 Dec  21  2
2013 Nov  660  2
2013 Oct  252  3
2013 Sep  11  1
2013 Aug  38  3
2013 Jul  209  1
2013 Apr  50  6
2013 Mar  1953  10
2013 Feb  312  4
2013 Jan  273  2
2012 Nov  39  2
2012 Oct  464  10
Tag Cloud
Interested in our services? Still not sure about project details? get a quote