强制 WPF 工具提示留在屏幕上 [英] Forcing a WPF tooltip to stay on the screen

问题描述

我有一个标签的工具提示，我希望它保持打开状态，直到用户将鼠标移动到不同的控件.

I have a tooltip for a Label and I want it to stay open until the user moves the mouse to a different control.

我在工具提示上尝试了以下属性:

I have tried the following properties on the tooltip:

StaysOpen="True"

和

ToolTipService.ShowDuration = "60000"

但在这两种情况下，工具提示仅显示 5 秒.

But in both cases the tooltip is only displayed for exactly 5 seconds.

为什么这些值会被忽略?

Why are these values being ignored?

推荐答案

只需将这段代码放在初始化部分即可.

Just put this code in initialization section.

ToolTipService.ShowDurationProperty.OverrideMetadata(
    typeof(DependencyObject), new FrameworkPropertyMetadata(Int32.MaxValue));

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