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Questions tagged [tvirtualstringtree]

VirtualStringTree is a Delphi component, VirtualTreeview descendant designed to make it easy to show string data.

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How do I fill in the area above the scroll bar in a TVirtualStringTree?

I have a need to fill in (with black) the little white square that I've highlighted in the picture below. I have tried adding extra columns. I have tried expanding the PaintInfo.PaintRectangle. I have tried every setting on the Amount column that…
Nick Hodges
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Delphi: Changing focus after deleting a node from a virtual string tree

I have a component of type TVirtualStringTree (let us call it VST). It has nodes in the form of a list, i.e. all the nodes are at the same level. I want to change a focus after deleting a node (with the DeleteNode method) and I used OnFreeNode…
Chris S
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VirtualTreeView - different color of text in the same node

I am attempting to create a view in TVirtualStringTree which will be similar to something like this: In the above example I have shown some of the possible scenarios I want to reach. FolderA has bold text and after that red-colored unbolded text…
Coder12345
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VirtualStringTree columns should adapt size when one column is hidden

I have a VST with 3 columns that evenly take the available space. I have set hoAutoSpring in Header.Options, and all columns have Column[x].Option have coAutoSpring set. Now I want to be able to hide the last column and maintain that the other…
ralfiii
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Is it possible to use VirtualStringTree for a master detail grid view?

Alright I got something really tricky here... I would like to DRAW/USE Headers to a ChildNode. I think the idea is reasonable because it would look amazing to have headers in subnodes so the childnodes can be specified in a table. Is there a…
Ben
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TVirtualStringTree - How to use my own hint window class for VT columns?

I want to use a custom Hint window class for my entire application. I use the Application.OnShowHint, analyze the THintInfo, and return my own TMyHintWindow in the HintInfo.HintWindowClass. This works well for all controls but I have a strange…
zig
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TVirtualStringTree: Data changed between OnMeasureItem event and OnGetText event

I have an array holds data will be represented on TVirtualStringTree. This array is thread-safe and lockable. And grown by another thread. My problem is that, when VST executes OnMeasureItem event to measure height of the node, data used for…
Mehmet Fide
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VirtualStringTree - Embedding Controls In Cells - Control Not Showing

So, my end game here is to have a way to list items (like a TListView in vsReport) with the add/remove buttons inside the client area. Ex: |----------------| |Old Item 1 X | |Old Item 2 X | |Add new item... | | …
ThievingSix
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VirtualStringTree - Correct way to add/handle subnodes/childnodes when using objects?

I am using Delphi2010 and trying to wrap my head around using VirtualStringTree. I've been trying to get it to work with objects and was having no luck until I followed Philipp Frenzel's Virtual TreeView tutorial which I found on the soft-gems.net…
TheSteven
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How can I hide a TVirtualStringTree node?

if I'm not mistaken it's not possible to have invisible nodes in a TVirtualStringTree treeview, as there are no enabled, visible or other properties to do so. Am I right about this? If yes, how did I manage to have a non visible node? Structure of…
Markus
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How to set the node height in Tvirtualstringtree

I have set the the height of the FocusedNode using following code procedure TMainForm.SetheightClick(Sender: TObject); begin if Assigned(tree1.FocusedNode) then Tree1.NodeHeight[Tree1.FocusedNode] := strtointdef(edit8.Text ,50); end; I would…
u950321
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How to display an icon or image in a column of TVirtualStringTree?

In a Delphi VCL project, I have created a simple TVirtualStringTree with two columns. The first column will contain text identifying the Name of the data being represented. The data record also contains a status field. The second column is…
Ashlar
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TVirtualStringTree highlight of searching result

I would like to highlight the text from a node of VirtualStringTree according to search criteria like example from bellow: Any suggestion please?
REALSOFO
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TVirtualStringTree - How to change the [-] / [+] buttons?

How can I use my own custom buttons (images) to replace the default [-]/[+] buttons in the VST? I want to use arrows instead (, ), but also to support RTL bidi mode (, ). edit: I am aware of the bsTriangle style (ButtonStyle). It does not respect…
ZigiZ
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How to color blend cells with a background image in VirtualTreeView?

I'm using VT.Background to display a background image in VT with a few columns. But I can't find a way to use different colors for cells because they hide the background image. I have tried to use OnBeforeItemErase but if I useEraseAction :=…
ZigiZ
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