Can't i group data when using XELEMENT DATASOURCE?

[Zhang]

I use ObservableCollection<XElement> as ItemsSource. I found that the Group Panel does not accept selected column headers. Is there any possibilities that i can still use XElement as DataSource.

[Dimitrina]

Hi,

Please note that our data engine uses LINQ for all data operations. So for example, when you group on the Country column, something like this will be executed:
var results = customersCollection.GroupBy(customer => customer.Country);

You can bind directly to a collection of XElement however lots of  types will be unknown and you will not able to sort, filter and group.

Regards,
Didie
Telerik

[Zhang]

Finally i find a way to solve it and still use XElement, the way is to define a customized XElement Class like below:
    public class MyXElement : XElement
    {
        public MyXElement(XName name, object content) : base(name, content) { }
        public MyXElement(XName name, params object[] content) : base(name, content) 
        {
            ElementDic = new Dictionary<string, string>();
            foreach (XElement x in content) 
            {
                ElementDic.Add(x.Name.LocalName, x.Value);
            }
        }

        public Dictionary<string, string> ElementDic { get; set; }
    }

Populate data as below:
  List<MyXElement> myList = new List<MyXElement>();
            myList.Add(new MyXElement("Emp", new MyXElement("FirstName", "Maria"), new MyXElement("LastName", "Anders"), new MyXElement("IsMarried", true)));
            myList.Add(new MyXElement("Emp", new MyXElement("FirstName", "Ana"), new MyXElement("LastName", "Trujillo"), new MyXElement("IsMarried", true)));
            myList.Add(new MyXElement("Emp", new MyXElement("FirstName", "Antonio"), new MyXElement("LastName", "Moreno"), new MyXElement("IsMarried", true)));
            myList.Add(new MyXElement("Emp", new MyXElement("FirstName", "Thomas"), new MyXElement("LastName", "Hardy"), new MyXElement("IsMarried", false)));
            this.rgd1.ItemsSource = myList;

And bind it this way:
     <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=ElementDic[FirstName]}" Header="FirstName" UniqueName="FirstName" />

[Dimitrina]

Hi,

Thank you for sharing your solution with the community.

Regards,
Didie
Telerik