如何重置WPF控件工具提示？

I think I have a not so complicated problem, but I can't solve it or find the solution on internet.

我认为我有一个不那么复杂的问题，但我无法解决它或在互联网上找到解决方案。

I have some random RichTextBox

我有一些随机的RichTextBox

<RichTextBox x:Name="myRichTextBox" ToolTipOpening="RichTextBoxEx1_ToolTipOpening" ToolTip=" "></RichTextBox>

I want to show a specific Tooltip depending on the word hovered by the mouse. I already have a solution for this.

我想显示一个特定的工具提示，取决于鼠标悬停的单词。我已经有了解决方案。

Let's said that my RichTextBox have a text like this "My house is green". If I hover over the word 'green', it shows the Tooltip OK, but if I need to show the Tooltip over the word 'house' I need to get out my mouse of the RichTextBox control and enter again.

让我们说我的RichTextBox有一个像这样的文字“我的房子是绿色的”。如果我将鼠标悬停在“绿色”一词上，它会显示工具提示确定，但如果我需要在“房子”一词上显示工具提示，我需要取出RichTextBox控件的鼠标并再次输入。

So, I'm asking for some 'reset' of the tooltip. Something like, when I move my mouse, the current Tooltip disappears and I dont need to wait for a new Tooltip without take out my mouse of the control.

所以，我要求对工具提示进行一些“重置”。有点像，当我移动我的鼠标时，当前的工具提示消失了，我不需要等待新的工具提示而不取出我的鼠标控件。

Thank you so much.

非常感谢。

1 个解决方案

#1

I usually just set ToolTip property to null and assign a new ToolTip object:

我通常只将ToolTip属性设置为null并分配一个新的ToolTip对象：

element.ToolTip = null;
var tooltip = new ToolTip();
tooltip.Content = ...
element.ToolTip = tooltip;
tooltip.IsOpen = true;
tooltip.StaysOpen = false;

Now to call this code, you will have to implement some kind of hover mechanism based on MouseMove event and preferably a timer - it's not included in WPF.

现在要调用此代码，您必须实现某种基于MouseMove事件的悬停机制，最好是一个计时器 - 它不包含在WPF中。

#1