Plex 2E

Hi

I tried to change the background of a treeview. Does someone know if it's possible? We are using Microsoft TreeView Control, version 6.0.

Thank you in advance

Markus

Hi Markus,

Assuming you are trying to change the background color of a treeview.

Try this C++ sourcecode.

HWND hWnd = ObPanelAPI::GetControlHandleByName("TreeView1");

SendMessage(hWnd , TVM_SETBKCOLOR , 0 , 0x0000FFFF );

Regards

AA

won't say can't but VB Helper: HowTo: Change a TreeView control's background color does say it does not work for version 6

The above post is infact for version 6.

It works for both version 5 and 6.

AA I think you need to load the tree to see what the articles are highlighting are the issues with TVM_SETBKCOLOR and Microsoft TreeView Control, version 6.0 as opposed to version 5.0

Thank you  ashfaq.m.ahmed  and GeorgeJeffcock

I have to agree with GeorgeJeffcock . It works fine with version 5, but not with version 6. In version 6 the background of the text doesn't change.

Unfortunately I need version 6 for the possibility to set the text to bold, this doesn't work with version 5 (or I didn't find how)

Hi Markus,

Node.Bold =  True works only in ver 6, property not supported in ver 5.

In version 6.

• If you are not using rootlines.
• After setting the backcolor
• you need to set node backcolor
• hide and show treelines or/and change the style and restore

'Change bgColor of the node

    For Each nNode In TreeView1.Nodes

        nNode.BackColor = RGB(255, 255, 0)

    Next

    TreeView1.LineStyle = 0

    TreeView1.Style = 0 ' tvwTreelinesText   Style 4.

    TreeView1.BorderStyle = 1

    'change treeview style

    'TreeView1.LineStyle = 1 ' tvwRootLines  commented out as with rootlines does not work

   TreeView1.Style =  2 ' 7 - tvwTreelinesPlusMinusText ' works with Style 1 or 2

Regards

AA

and here lies the issue a treeview kinda needs the ability to collapse and expand in most cases. I could find no way so far of getting the 'yellow' colour in the background of the plus signs.

Dim I 
For I = 1 to TreeView1.Nodes.Count
TreeView1.Nodes(I).BackColor = RGB(255, 255, 0)
Next

Works with no rootlines and with Style  0 , 1 and 2. With other styles leaves blocks of old background on the left , in some cases with the last expandable node.

With Node level text formating ability(Bold & Text color ....may be more ) , i think ver 6 is still a good choice.

Hi Ashfaq

Thanks a lot for your help.

Where can I find more information how to change color, font or fontsize of a node when loading a tree or for a selected node?

I searched the net but I didn't find examples that worked in Plex.

Hi Markus,

While loading modify Add parent / Add Child Script.

Text Color & Bold/Regular could be changed easily.

Font size takes effect for the entire treeview using (TreeView1.Font.Size = n).

Selected node highlight behaviour is overridden by the system color setting for Selected Item.

Add Parent script modified.

Or at the end

Regards

AA

Node.Bold is a property supported in ver 6 and not in ver 5.