item | 单击的 TreeViewItem。 |
keepMultiSelection | 如果为 true,则在单击已是选择中一部分的项时保持多重选择。如果为 false,则在选择单击的项之前清除选择。对于左键单击,通常为 false。对于上下文单击,通常为 true,从而上下文操作可针对多重选择执行。 |
在 RowGUI 中使用此方法可执行鼠标单击逻辑。
结合使用修改键与鼠标单击时,此方法可处理多重选择。如果事件未由 RowGUI 方法使用,则系统会自动调用此方法。
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