TextBox tb = e.Source as TextBox; tb.PreviewMouseDown += new MouseButtonEventHandler(OnPreviewMouseDown); } void OnPreviewMouseDown(object sender, MouseButtonEventArgs e) { TextBox tb = e.Source as TextBox; tb.Focus(); e.Handled = true; } void OnGotFocus(object sender, RoutedEventArgs ...
方式1:在窗体的Load事件中去设置焦点,(注意:不能在窗体的构造函数中对TextBox设置焦点,因为此时窗体的Visual还没有初始化): TextBox.Focus();或者键盘的焦点Keyboard.Focus(TextBox); 方式2:在窗体的Load事件中设置一个委托,代码: this.Dispatcher.BeginInvoke(DispatcherPriority.Background, (Action)(() => { ...
1.利用行为http://blog.csdn.net/lianchangshuai/article/details/9223125 2. 利用装饰器 http://stackoverflow.com/questions/1345391/set-focus-on-textbox-in-wpf
在WPF中,如果你希望在页面打开时让TextBox默认获得焦点,可以通过以下几种方法实现: 在XAML中为TextBox设置名称,并在页面的Loaded事件中设置焦点: 首先,在XAML中为TextBox设置一个名称(x),以便在C#代码中引用它。然后,在页面的Loaded事件中调用TextBox的Focus方法。 xml <Window x:Class="YourNamespace.MainWin...
protected override void OnMouseDown(MouseButtonEventArgs e) { Foo.Focus(); var focusedElement = Keyboard.FocusedElement; } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 运行程序,先点击 TextBox 设置键盘输入焦点在 TextBox 上。再点击空白的地方 ...
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,可以通过以下步骤实现: 1. 在XAML中,为TextBox控件设置一个名称,例如: ```xaml <TextBox x:Name="myTextBox" Text="Hello World!"...
不知道为什么它在GotFocus事件中丢失了选择。但是一种解决方案是对GotKeyboardFocus和GotMouseCapture事件...
</TextBox> 关键点在于鼠标按下之时 tb.Focus(); e.Handled=true; 由这里引发GotFocus事件 并且设置Handled 标记阻止路由事件继续传播 在GotFocus的事件里面利用tb.SelectAll()全选 tb.PreviewMouseDown -= new MouseButtonEventHandler(OnPreviewMouseDown); ...