TElXTree: After reversing the order, make the Focused item visible

RaymondWK

Assume there are 50 items at Level 0 (Children of the root).

Item 0 is the FocusedItem.

After reversing order, I do the following to make the focused item visible, only it doesn't work.

      ItemFocused := Items.Item[FocusedIndex];  // This line works to make the ItemFocused the same as before reversing the order.

      ItemFocused.MakeVisible();              // Tried this: doesn't work.

      TopIndex := ItemFocused.VisIndex;   // Tried this: doesn't work.

What is to be done, please?

Thanks.

Raymond

Victor_Bocharov

Sorry, I'm not sure how to reproduce. 

What exactly does your procedure of reversing order?

MakeVisible and TopIndex works as expected. 

Sample project with problem clearly reproduced would be of great help here.

RaymondWK

I have an improvement.

If the ParentItem points to the Root, then the following code works when there is a focused item prior to reversing the order of the items..

    TempItem := ParentItem.GetLastChild();

    for i := 0 to Pred(ParentItem.Count) - 1 do

    begin

      TempItem.Index := i;

      TempItem := ParentItem.GetLastChild();

    end;

    if ItemFocused <> nil then

    begin

      TopIndex := ItemFocused.Index;

    end;

However, although for children of an item, (i.e. when ParentItem <> Root) reversing the order of these children keeps the correct item focused, the focused item does not appear visible when setting the TopIndex as above.

Raymond

RaymondWK

I couldn't reproduce it in a demo, and when I tried it again in my app it works as expected. Strange.

No need to pursue this. Sorry.

Raymond