使用
Windows Forms,当我单击TreeView节点时,突出显示颜色为蓝色.有没有办法改变这个？
解决方法
如果您创建自己的TreeView类并覆盖OnDrawNode方法,则可以.例如,这个将突出显示选定的红色节点：
class ClassMyTreeView:TreeView
{
public ClassMyTreeView()
{
this.DrawMode = TreeViewDrawMode.OwnerDrawText;
}
protected override void OnDrawNode(DrawTreeNodeEventArgs e)
{
TreeNodeStates state = e.State;
Font font = e.Node.NodeFont ?? e.Node.TreeView.Font;
Color fore = e.Node.ForeColor;
if (fore == Color.Empty)
fore = e.Node.TreeView.ForeColor;
if (e.Node == e.Node.TreeView.SelectedNode)
{
fore = SystemColors.HighlightText;
e.Graphics.FillRectangle(new SolidBrush(Color.Red),e.Bounds);
ControlPaint.DrawFocusRectangle(e.Graphics,e.Bounds,fore,Color.Red);
TextRenderer.DrawText(e.Graphics,e.Node.Text,font,Color.Red,TextFormatFlags.GlyphOverhangPadding);
}
else
{
e.Graphics.FillRectangle(SystemBrushes.Window,e.Bounds);
TextRenderer.DrawText(e.Graphics,TextFormatFlags.GlyphOverhangPadding);
}
}
}
