RadDataGrid

[Vamshi]

When Im using telerik.Xamarinforms.Datagrid. Dll   getting  system. TypeloadException

[Lance | Senior Manager Technical Support]

Hi Vamshi,

Unfortunately, the amount of information you've provided isn't enough for me to investigate why you're getting that exception. Can you please reply back with either a runnable demo that reproduces the problem, or the full code that I can use to replicate the problem.

Additionally, we also need to know the specifics about what platform you're targeting (e.g. Android 7.1, min SDK 19, target SDK 25)

Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik

[Vamshi]

Telerik. XamarinForms . DataGrid dlll version-   2017.3.1103.240

Target android version 7.1

Minimum android     4.0.3

Code: RadDataGrid rdg=new RadDataGrid d () :

  rdg. ItemSource=datatable.

Content=rdg.

We are using all required dlls..

[Lance | Senior Manager Technical Support]

Hi Vamshi,

It appears you are still using the CTP (beta) version of the control from last year. Please update to the official release, 2018.1.202.240 in order to get the new features and improvments made since the preview. 

That said, you have't shared enough of your code, or what version of Xamarin.Forms you are using, so I can't determine what's wrong with your application.  

If I had to guess from the name of your variable, you're using a DataTable (.NET Standard 2.0).  DataGrid doesn't support direct binding to DataTable, you can instead make a List from the table rows, like this:

namespace UsingDataTable.NetStandard

{

    public partial class StartPage : ContentPage

    {

        public StartPage()

        {

            InitializeComponent();

        }

 

        protected override void OnAppearing()

        {

            base.OnAppearing();

             

            var datatable = GetStudentsTable();

             

            var list = new List<Student>();

 

            foreach (DataRow row in datatable.Rows)

            {

                list.Add(new Student

                {

                    Name = (string)row.ItemArray[0],

                    Gpa = (double)row.ItemArray[1]

                });

            }

 

            var dg = new RadDataGrid();

            dg.ItemsSource = list;

 

            this.Content = dg;

        }

         

        private DataTable GetStudentsTable()

        {

            var table = new DataTable();

 

            table.Columns.Add("Name", typeof(string));

            table.Columns.Add("Gpa", typeof(double));

 

            for (int i = 1; i < 5; i++)

            {

                table.Rows.Add($"Student {i}", i);

            }

 

            return table;

        }

    }

 

    public class Student

    {

        public string Name { get; set; }

        public double Gpa { get; set; }

    }

}




Here's a screenshot at runtime:



If you'd like to see DataTable support, you can submit a feature request here.

Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik