如何在WPF中从文本框中突出显示光标？

Question

<Grid x:Name="LayoutRoot">
    <TextBox x:Name="TxtFocusOut" Height="74" Margin="186,149,225,0" TextWrapping="Wrap" VerticalAlignment="Top" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" FontSize="26.667" TextChanged="TextBox_TextChanged"/>
</Grid>

private void TextBox_TextChanged(object sender, System.Windows.Controls.TextChangedEventArgs e)
    {
        if(TxtFocusOut.Text.Length>=4)
        {
            MessageBox.Show("Four you typed four values");
        }
    }

在单击“确定”按钮后，光标应从texbox中移出。但是现在它在文本框中闪烁。我应该怎么做才能从testbox中移出焦点？

Answer 1

FocusManager.SetFocusedElement(AnotherElementID);  

通过这样做，这将松散其焦点，并且焦点可用于其他元素。
要么
Keyboard.ClearFocus（）;
http://msdn.microsoft.com/en-us/library/system.windows.input.keyboard.clearfocus.aspx
尝试任何这些