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WinForms 树中的三角国家检查箱
原标题:Tri-State Checkboxes in WinForms TreeView
最佳回答

http://www.codeproject.com/KB/tree/TriStateTreeViewSubmissio.aspx” rel=“nofollow”? 看来是做这项工作的。 这可能是一个里程碑(从2004年起就看该条),但我相信,同样的原则可以扩大到你需要做的一切。

问题回答

如果你想利用混合检查箱,这部守则可能会帮助你。

class MixedCheckBox:Control
{
    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        CheckBoxRenderer.DrawCheckBox(e.Graphics, new Point(0, 0), Bounds, 
            Text, Font, false, 
            System.Windows.Forms.VisualStyles.CheckBoxState.MixedNormal);
    }
}

这将使:“

亲爱!





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