如何解決“在類型'ControlTemplate'中找不到可附加屬性'觸發器'”？ (How to resolve "The attachable property 'Triggers' was not found in type 'ControlTemplate'"?)

問題描述

如何解決“在類型'ControlTemplate'中找不到可附加屬性'觸發器'”？ (How to resolve "The attachable property 'Triggers' was not found in type 'ControlTemplate'"?)

我已經向 UpdateBtn 添加了一個控件模板，遵循此 snippet 但我收到一條錯誤消息，指出在 ControlTemplate 上找不到 Triggers 屬性。這個想法是將故事板綁定到按鈕的 IsEnabled 屬性。

Error   5   The attachable property 'Triggers' was not found in type 'ControlTemplate'. 

我研究了錯誤，似乎該屬性是 ControlTemplate，這是一個 WPF應用程序不是 Windows。所以不確定為什麼 xaml 設計器中會顯示錯誤。

參考解法

方法 1:

Your XAML structure is

<Button.Template>
    <ControlTemplate.Triggers>
         ...
    </ControlTemplate.Triggers>
</Button.Template>

but you need something like

<Button.Template>
    <ControlTemplate TargetType="Button">
        <ControlTemplate.Triggers>
          ...
        </ControlTemplate.Triggers>
    </ControlTemplate>
</Button.Template>

(by Brian Var、Fratyx)

參考文件

1. How to resolve "The attachable property 'Triggers' was not found in type 'ControlTemplate'"? (CC BY‑SA 2.5/3.0/4.0)