Question

I have created a custom tree view control in .NET to display directories.

What I want is for the nodes to display the folder name and also the date last modified.

I can do this by just setting the text to include this but then when I try and get child nodes using full path it also includes the date and so the folder is not found.

So I tried overriding OnDrawNode to display the date as it is stored in the tag property of the node. However when I run the app it is never called.

Is there any reason for this?

Answer 1

You must set the DrawMode property to OwnerDrawAll or OwnerDrawText. Otherwise, the nodes are drawn by the system, and OnDrawNode is not called

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UPDATE : to combine the default rendering with your custom rendering, you can do that :

    protected override void OnDrawNode(DrawTreeNodeEventArgs e)
    {
        e.DrawDefault = true;
        base.OnDrawNode(e);
        // your custom rendering here
    }