wpf - 相当于WPF中的SuspendLayout和ResumeLayout

Question

具体场景。 ControlA 更改一个值，导致 ControlB(scrollviewer 的子类)重新配置其视口(viewport)、偏移量和范围，然后触发 ScrollableChanged 事件。 ControlB 还捕获“ScrollableChanged”事件并以编程方式滚动到确定的偏移量。如果我可以在更改值之前调用 suspendlayout 并在执行计算的滚动之后调用 resumelayout，这将创建这种可怕的双重重绘，这将完全避免。

我该怎么做？

Answer 1

来自 here :

Since layout is done in a separate pass it is implicitly blocked from updating while the UI thread is busy doing something else. Therefore you can add all the controls you want and change all the properties you want and the changes won't take effect until the UI thread returns.