xamarin/Xamarin.Forms

StackLayout.IsEnabled=false one of the children does not inherit IsEnabled=false

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#9,121 建立於 2020年1月7日

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描述

This issue has been moved from a ticket on Developer Community.

I have this simple xaml in a 

<StackLayout x:Name="EntriesPanel" IsEnabled="False" >
             <Label>IDX</Label>
             <Entry x:Name="IDXEntry" IsEnabled="False" />
             <Label>Name</Label>
             <Entry x:Name="NameEntry" />
             <Label>Name2</Label>
             <Entry x:Name="NameEntry2" />
        </StackLayout>

Strangely NameEntry2 is disabled as expected (inheriting from StackLayout) but NameEntry stays enabled. I have other forms with more Entry and all of them inherit from parent StackLayout apart from the first not disabled one.

Original Comments

Visual Studio Feedback System on 1/2/2020, 06:14 PM:

Original Solutions

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技術棧
csharp
領域
mobile
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-2 days
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stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
C#Xamarin.FormsProperty inheritance
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
40
研究方向
Investigate why StackLayout.IsEnabled=false is not inherited by the first Entry child. Look at the internal property inheritance mechanism in Xamarin.Forms, specifically how IsEnabled propagates to child views. Check the method that sets IsEnabled on visual elements and ensure that all children are iterated correctly. The issue might be in the layout's child enumeration order or a bug in the property change propagation.