Dynamic Cardlayout - Active panel disapears after postback from Window

[Nesse]

Hi Everyone,

I'm struggling to get my panel with cardlayout to work correctly. Inside my panel i have a few base panels (steps) and expand this after some options are choosing. So far so good. But now I call a Model Window, and on close i recreate the dynamic panels, but i see that my active item from the card layout disappears, and nothing is shown. When i try to set the activeindex of the Wizard, I'm stuck in a postback loop.

Page Load - recreate dynamic panels:

  protected void Page_Load(object sender, EventArgs e)
        {
            PanelSpecificationsLoad();
        }

add/remove dynamic panels after the existing ones:

 private void PanelSpecificationsLoad()
        {
            // init 
            List<Specification> AllSpecifications = LoadAllSpecification();
            List<Specification> Specifications= new List<Specification>();
            int iStep = PanelStepWizard.Items.Count + 1;

            if (TreePanelCategories.CheckedNodes != null)
            {
                foreach (var node in TreePanelCategories.CheckedNodes)
                {
                    var Category = LoadCategoryById(Helper.ToInt(node.NodeID));

                    if (Category != null)
                    {
                        var MainCategory= LoadCategoryById(Helper.ToInt(Category.MainCategoryId));

                        if (MainCategory!= null)
                        {
                            Specifications.AddRange(MainCategory.Specifications);
                        }
                    }
                }
            }

            foreach (var Specification in AllSpecifications)
            {
                // control - gridpanel
                var CtrlSpecification = this.LoadControl("~/controls/gridpanels/specification_gridpanel.ascx") as specification_gridpanel;
                CtrlSpecificatie.ID = "CtrlSpecificatie_" + Specificatie.Id;
                CtrlSpecificatie.Specification = Specification;
                CtrlSpecificatie.Title = "<h1>[Step" + iStap + "] - Select - " + Specification.Name + ".</h1>";
             
                // panel
                var PanelSpecification= new Panel();
                PanelSpecification.ID = "PanelSpecification_" + Specification.Id;
                PanelSpecification.BodyPadding = 10;
                PanelSpecification.Layout = "VBoxLayout";
                PanelSpecification.LayoutConfig.Add(new VBoxLayoutConfig { Pack = BoxPack.Start, Align = VBoxAlign.Stretch });
                PanelSpecification.ContentControls.Add(CtrlSpecification );
                PanelSpecification.Listeners.Activate.Fn = "SpecificationWizardPanel_Activate";
                PanelSpecification.AddTo(PanelStappenWizard);

                // check
                if (CtrlSpecifications.Distinct().Contains(CSpecification))
                {
                    iStap++;
                }
                else
                {
                    PanelStepsWizard.Remove(PanelSpecification);
                }
            }

            PanelStepsWizard.DoLayout();
           //PanelStepsWizard.ActiveIndex = Helper.ToInt(HiddenActiveIndex.Value);
        }

Window Close DirectEvent:

protected void WindowAddItems_Close(object sender, DirectEventArgs e)
{
// Do Something
}

Markup Cardlayout Panel:

<ext:Panel runat="server" Title="Details - Stappen" ID="PanelStepsWizard" Icon="ApplicationCascade" Layout="CardLayout" ActiveIndex="0" Flex="1" BodyPaddingSummary="10 0 0 0" Frame="true">
    <Items>
        <%-- step 1 --%>
        <ext:Panel ID="Panel1" runat="server" BodyPadding="10" Layout="VBoxLayout">
            <LayoutConfig>
                <ext:VBoxLayoutConfig Align="Stretch" Pack="Start" />
            </LayoutConfig>
            <Items>
                <ext:Label ID="Label1" runat="server" Html="<h1>[Step 1]</h1>" Height="50" />
            </Items>
            <Listeners>
                <Activate Fn="CategorieenWizardPanel_Activatie" />
            </Listeners>
        </ext:Panel>
        <%-- step 2 --%>
        <ext:Panel ID="Panel2" runat="server" BodyPadding="10" Layout="VBoxLayout">
            <LayoutConfig>
                <ext:VBoxLayoutConfig Align="Stretch" Pack="Start" />
            </LayoutConfig>
            <Items>
                <ext:Label ID="Label2" runat="server" Html="<h1>[Step 2] </h1>" Height="50" />
            </Items>
            <Listeners>
                <Activate Fn="NieuwProductWizardPanel_Activatie" />
            </Listeners>
        </ext:Panel>
        <%-- step 3 --%>
        <ext:Panel ID="Panel3" runat="server" BodyPadding="10" Layout="VBoxLayout">
            <LayoutConfig>
                <ext:VBoxLayoutConfig Align="Stretch" Pack="Start" />
            </LayoutConfig>
            <Items>
                <ext:Label ID="Label3" runat="server" Html="<h1>[Step 3]</h1>" Height="50" />
            </Items>
            <Listeners>
                <Activate Fn="MerkenWizardPanel_Activatie" />
            </Listeners>
        </ext:Panel>
        <%-- step 4 --%>
        <ext:Panel ID="Panel4" runat="server" BodyPadding="10" Layout="VBoxLayout">
            <LayoutConfig>
                <ext:VBoxLayoutConfig Align="Stretch" Pack="Start" />
            </LayoutConfig>
            <Items>
                <ext:Label ID="Label4" runat="server" Html="<h1>[Step 4]</h1>" Height="50" />
            </Items>
            <Listeners>
                <Activate Fn="NaamWizardPanel_Activatie" />
            </Listeners>
        </ext:Panel>
    </Items>
</ext:Panel>

Markup Window:

 <ext:Window ID="WindowAddItems" runat="server" Width="980" Height="680"
        AutoShow="false" Modal="true" Hidden="true" Layout="FitLayout" ButtonAlign="Right">
        <Loader runat="server" Mode="Frame" AutoLoad="false">
            <LoadMask ShowMask="true" />
        </Loader>
        <DirectEvents>
            <Close OnEvent="WindowAddItems_Close">
                <EventMask ShowMask="true" />
            </Close>
        </DirectEvents>   
        <Buttons>
            <ext:Button runat="server" Icon="Cross" Text="Close">
                <Listeners>
                    <Click Handler="#{WindowAddItems}.close();" />
                </Listeners>
            </ext:Button>
        </Buttons>
    </ext:Window>

[Nesse]

Hi Everyone,

I've tried lots of things but nothing works. I just want to keep the dynamic panel active after gridpanel reload (postback). Does anyone knows how to accomplish this?

Thx