Keep selected item after a post

[Bram]

I've created a panelbar in the Layout:

@(Html.Kendo().Splitter()
            .Name("mainsplitter") //The name of the splitter is mandatory. It specifies the "id" attribute of the widget.
            .Panes(panes =>
            {
                panes.Add().Content(@<text>@Html.Action("_Panelbar")</text>)
                            .Resizable(true)
                            .Size("20%");
                panes.Add().Content(@<text>
                            <section class="content-wrapper main-content clear-fix">
                                @RenderBody()
                            </section>
                            </text>); //Add pane
            })
            )
And a rendersection for the main content, it all goes well, but when I
change the main content Model, the panelbar jumps to the first item.
When I return only the ViewBag, and no Model, the panelbar is keeping
the selected item.
What have I to do for keep always the selected item ?

And in the _PanelbarView:

@model CPMPlanning.Models.CPMModelViewPanel

@( Html.Kendo().PanelBar()
    .Name("PanelBar")  
    .SelectedIndex(Model.ObjectIDSelected)
    .ExpandMode(PanelBarExpandMode.Single)
    .BindTo(Model.ObjectTypes, mappings =>
    {
        mappings.For<CPMPlanning.Models.ObjectTypeView>(binding => binding
                .ItemDataBound((item, objecttype) =>
                {
                    item.Text = objecttype.ObjectTypeDesc;

                })
                .Children(o => o.Objects));
        mappings.For<CPMPlanning.Models.ObjectView>(binding => binding
                .ItemDataBound((item, obj) =>
                {
                    item.Text = obj.ObjectCode;
                    item.Url = Url.Action("Index", "CPMModel", new { id = obj.ObjectID });
                })
            );
    })
)

[Daniel]

Hi,

I am not sure if I understand correctly the exact scenario. Could you clarify how are you changing the model and how is the "ObjectIDSelected" value determined?

Regards,
Daniel
the Telerik team

[Bram]

Sorry, The ObjectID selected is not used anymore, it was just testing..
The problem is: First, I had this panelbar as a partial view in the index page, but for reasons I've replaced it to the Layout structure with a splitter, but now the " automatic selecteditem" is not working anymore.. If you put the panelbar back in the index, and even after a GET, the panelbar is select automatic the previous selected item (That's what I want).

_Layout:
       @(Html.Kendo().Splitter()
            .Name("mainsplitter") //The name of the splitter is mandatory. It specifies the "id" attribute of the widget.
            .Panes(panes =>
            {
                panes.Add().Content(@<text>@Html.Action("_Panelbar")</text>)
                            .Resizable(true)
                            .Size("20%");
                panes.Add().Content(@<text>
                            <section class="content-wrapper main-content clear-fix">
                                @RenderBody()
                            </section>
                            </text>); //Add pane
            })
            )

[Bram]

Hi I solved it by giving " expanded" and " selected" in the view, and then:

@( Html.Kendo().PanelBar()
    .Name("PanelBar")  
    //.SelectedIndex(Model.ObjectDescSelected)
    .ExpandMode(PanelBarExpandMode.Single)
    .BindTo(Model.ObjectTypes, mappings =>
    {
        mappings.For<CPMPlanning.Models.ObjectTypeView>(binding => binding
                .ItemDataBound((item, objecttype) =>
                {
                    item.Expanded = objecttype.IsExpanded;
                    item.Text = objecttype.ObjectTypeDesc;
                })
                .Children(o => o.Objects));
        mappings.For<CPMPlanning.Models.ObjectView>(binding => binding
                .ItemDataBound((item, obj) =>
                {
                    item.Selected = obj.IsSelected;
                    item.Text = obj.ObjectCode;
                    item.Url = Url.Action("Index", "CPMModel", new { id = obj.ObjectID });
                })
            );
    })
)