[Solved] GridViewComboBoxColumn binding to collection of strings

[ultramods]

Hello,

Is it possible to use the GridViewComboBoxColumn when the grid has been bound to a collection of strings? Using you F1 drivers example if I add a Roles property and bind Roles to the GridView Itemsource I can only get it to work if Roles is an object that I speciify rather than a string.

this works...

public class Driver
    {
        private string countryId;
        private List<Role> roles;

        public List<Role> Roles
        {
            get { return roles; }
            set { roles = value; }
        }

        public string CountryId
        {
            get { return countryId; }
            set { countryId = value; }
        }
    }

    public class Role
    {
        private string id;

        public string Id
        {
            get { return id; }
            set { id = value; }
        }
    }

 

<telerik:RadGridView x:Name="radGridView2" ItemsSource="{Binding SelectedDriver.Roles}"
                            AutoGenerateColumns="False">
                <telerik:RadGridView.Columns>
                    <telerik:GridViewComboBoxColumn DataMemberBinding="{Binding Id}"
                                       UniqueName="Role"
                                       SelectedValueMemberPath="Id"
                                       DisplayMemberPath="Id" />
                </telerik:RadGridView.Columns>
            </telerik:RadGridView>

this doesn't.....

public class Driver
    {
        private string countryId;
        private List<string> roles;

        public List<string> Roles
        {
            get { return roles; }
            set { roles = value; }
        }

        public string CountryId
        {
            get { return countryId; }
            set { countryId = value; }
        }
    }

<telerik:RadGridView x:Name="radGridView2" ItemsSource="{Binding SelectedDriver.Roles}"
                            AutoGenerateColumns="False">
                <telerik:RadGridView.Columns>
                    <telerik:GridViewComboBoxColumn DataMemberBinding="{Binding}"
                                       UniqueName="Role"
                                       SelectedValueMemberPath=""
                                       DisplayMemberPath="" />
                </telerik:RadGridView.Columns>
            </telerik:RadGridView>

  

If possible I would like to keep roles as a collection of strings because in the actual scenario that I am trying to use this I am binding to ria services User object IEnumerable<string> Roles property.

Thank you in advance for any help.

[Maya]

Hello,

Firstly, I would recommend you to run through our demo and take a look at some of the approaches for binding GridViewComboBoxColumn.  
The reason the first method works is that all the bindings are set correctly and there is a connection between the source of the column and the source of the grid - the Id properties. Thus once you select an item from the drop-down, the grid will be notified and will update the underlying property (the one you set for the DataMemberBinding of GridViewComboBoxColumn).

Kind regards,
Maya
the Telerik team