#11 Rendering issues with ExpandingIcon column with UseColumns.

[Anonymous]

Adding an ExpandingIcon NodeControl to an TreeViewAdv with the TreeViewAdv.UseColumns property set to true causes a rendering issue when rendering the ExpandingIcon. The ExpandingIcon jumps from where it's supposed to render on the Y axis to the parent row.

[Ken]

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The fix: In TreeViewAdv.cs, method DrawIcons, change the following code:

foreach (NodeControlInfo info in GetNodeControls(_expandingNodes[i]))
if (info.Control is ExpandingIcon)
{
Rectangle rect = info.Bounds;
rect.X -= OffsetX;
rect.Y -= firstRowY;

context.Bounds = rect;
info.Control.Draw(info.Node, context);
}

to

foreach (NodeControlInfo info in GetNodeControls(_expandingNodes[i]))
if (info.Control is ExpandingIcon)
{
Rectangle rect = info.Bounds;
rect.X -= OffsetX;
rect.Y -= firstRowY;

// adjust when using columns
if (UseColumns)
rect.Y += ColumnHeaderHeight;

context.Bounds = rect;
info.Control.Draw(info.Node, context);
}