ComboBox DataBinding

[Michael Salzlechner]

I am using the RadComboBox to show a list of countries in a data entry screen

the items are bound to an observable collection that contains a list of country objects that have a Name as well as a Code property ("United States", "US")

I set the ItemsSource to the observable collection and the DisplayMemberPath to "Name"

Now on the other hand i want to bind the SelectedItem to a database field on the screen. The parent is data bound and i simply set the

 

 

 

SelectedItem="{Binding CountryCode, Mode=TwoWay}"

 

 

 

 

which works fine for a simple standard combobox without name/code pairs

Now with the RadCombo it doesnt show the value from the database. When i select an item in the combo i have to select it twice to show the name and when i reopen the screen even though the values are saved in the database the name is not shown in the combobox

 

        private ObservableCollection<Country> countries;
        public ObservableCollection<Country> Countries
        {
            get
            {
                if (countries == null)
                {
                    countries = new ObservableCollection<Country>();

                    countries.Add(new Country("Austria", "AT"));
                    countries.Add(new Country("United States", "US"));
                    countries.Add(new Country("Canada", "CA"));
                }

                return countries;
            }
        }

 

 

        public mfgr_AddEdit()
        {
            // Required to initialize variables
            InitializeComponent();








            CountryCombo1.ItemsSource = Countries;
            CountryCombo1.DisplayMemberPath = "Name";
            CountryCombo1.SelectedValuePath = "Code";
        }

// ------------------------------------------

am i missing something ?

thanks

Mike

 

[Michael Salzlechner]

Well duh

found the problem

Binding should of course go to

SelectedValue="{Binding CountryCode, Mode=TwoWay}"

and not SelectedItem as i had

Mike

[Konstantina]

Hello Michael,

We are glad that you have resolved the issue yourself.

If you have any other questions please let us know.

All the best,
Konstantina
the Telerik team

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