arrangeoverride

WPF MeasureOverride and ArrangeOverride

由 给你一囗甜甜゛ 提交于 2021-01-27 06:01:40
问题 My question here is more of a theoretical one rather than functional. So what I'm looking for is an answer that can maybe be backed up with some documentation. I find myself in the situation where I need to do some custom measurements/arrangements for a wpf control's children? Is it ok to measure the children based on other size constraints rather than the one received as a parameter. Some pseudocode of what I'm trying to achieve: MeasureOverride(size) { foreach(child in children) { if

WPF MeasureOverride and ArrangeOverride

由 倖福魔咒の 提交于 2021-01-27 06:01:00
问题 My question here is more of a theoretical one rather than functional. So what I'm looking for is an answer that can maybe be backed up with some documentation. I find myself in the situation where I need to do some custom measurements/arrangements for a wpf control's children? Is it ok to measure the children based on other size constraints rather than the one received as a parameter. Some pseudocode of what I'm trying to achieve: MeasureOverride(size) { foreach(child in children) { if

Why is a ListBoxItem not calling MeasureOverride when its width is changed?

由 大城市里の小女人 提交于 2019-12-08 04:28:20
问题 Ok, for illustrative purposes, below I created a subclass of ListBoxItem and a subclass of ListBox which uses it as its container by overriding both IsItemItsOwnContainerOverride and GetContainerForItemOverride . Now when the window first appears, as expected, MeasureOverride is called on every ListBoxItem (with Infinity,Infinity) followed by ArrangeOverride being called on every item. However, when resizing the ListBox , only ArrangeOverride is called on the ListBoxItem , not MeasureOverride

Why is a ListBoxItem not calling MeasureOverride when its width is changed?

由 让人想犯罪 __ 提交于 2019-12-06 20:01:31
Ok, for illustrative purposes, below I created a subclass of ListBoxItem and a subclass of ListBox which uses it as its container by overriding both IsItemItsOwnContainerOverride and GetContainerForItemOverride . Now when the window first appears, as expected, MeasureOverride is called on every ListBoxItem (with Infinity,Infinity) followed by ArrangeOverride being called on every item. However, when resizing the ListBox , only ArrangeOverride is called on the ListBoxItem , not MeasureOverride even though the metadata for the width property is set to AffectsMeasure . NotE: I know I can get
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