ComboBox rendered after postback in ItemsControl resets selected value

Hi guys, when I fill list ‘FirstList’ with data after postback and content of repeater (same for gridview) is rendered, comboboxes resets selected values to value of first item in ‘FirstList’.

HTML:

<dot:Button Text="Postback" Click="{command: DoPostback()}" />
    <dot:Repeater DataSource="{value: FirstList}">
        <ItemTemplate>
            <dot:ComboBox SelectedValue="{value: SelectedValue}" DisplayMember="Text" ValueMember="Value" DataSource="{value: _parent.SecondList}">
            </dot:ComboBox>

Selected: {{value: SelectedValue}}
        </ItemTemplate>
    </dot:Repeater>

CS:

    public class TestPageViewModel: DotvvmViewModelBase
    {
        public List<FirstListItem> FirstList { get; set; } = new List<FirstListItem>();
        public List<SecondListItem> SecondList { get; set; } = new List<SecondListItem>();

        public void DoPostback()
        {
            FirstList = new List<FirstListItem>()
            {
                new FirstListItem() { SelectedValue = 1 },
                new FirstListItem() { SelectedValue = 2 }
            };

            SecondList = new List<SecondListItem>()
            {
                new SecondListItem() { Text = "Value1", Value = 1 },
                new SecondListItem() { Text = "Value2", Value = 2 }
            };
        }
    }

    public class SecondListItem
    {
        public int Value { get; set; }
        public string Text { get; set; }
    }


    public class FirstListItem
    { 
        public int SelectedValue { get; set; }
    }

Result after postback (click):

[MichalOberreiter]

Works like a charm, thx guys!

[tomasherceg]

OK, we’ll dig into this and fix it.