WPF Clear UserControl的孩子們

Question

我在WPF中創建一個UserControl，UserControl工作，當用戶將鼠標移到控件上時，應該刪除它的子控件，但我似乎沒有找到Children屬性或類似的東西..

XAML在這里：

<UserControl x:Class="myTextBox"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
         Name="thisTextBox"
         mc:Ignorable="d" d:DesignWidth="300" Height="57"     MouseEnter="UserControl_MouseEnter_1" MouseLeave="UserControl_MouseLeave_1">
<TextBlock Name="TypeText" TextWrapping="NoWrap" Text="" />
</UserControl>

在代碼中我需要做這樣的事情來讓TextBlock消失：

private void UserControl_MouseEnter_1(object sender, MouseEventArgs e)
{
     Children.Clear(); // There is no such thing as children here!!!
}

Answer 1

UserControl的“子元素”包含在Content屬性中。 您可以將其設置為null以刪除內容。

private void UserControl_MouseEnter_1(object sender, MouseEventArgs e)
{
    Content = null;
}