EventManager.RegisterClassHandler(typeof(TextBox), TextBox.GotFocusEvent,newRoutedEventHandler(TextBox_GotFocus));base.OnStartup(e); }privatevoidTextBox_GotFocus(objectsender, RoutedEventArgs e) { (senderasTextBox).SelectAll(); } 参考: https://social.msdn.microsoft.com/Forums/vstudio/en-US/...
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...
}privatestaticvoidOnKeyboardFocusSelectText(objectsender, KeyboardFocusChangedEventArgs e) { TextBox textBox= e.OriginalSourceasTextBox;if(textBox !=null) { textBox.SelectAll(); } } [AttachedPropertyBrowsableForChildrenAttribute(IncludeDescendants=false)] [AttachedPropertyBrowsableForType(typeof(TextBox)...
publicstaticvoidSetSelectAllTextOnFocus(DependencyObject element,boolvalue) 參數 element 型別:System.Windows.DependencyObject value 型別:System.Boolean .NET Framework 安全性 完全信任立即呼叫者。這個成員無法供部分信任的程式碼使用。如需詳細資訊,請參閱從部分受信任程式碼使用程式庫。
在WPF TextBox中自动选择焦点上的所有文本 ,可以通过以下步骤实现: 在XAML中,为TextBox控件设置一个名称,例如:<TextBox x:Name="myTextBox" Text="Hello World!" /> 在代码后台,使用以下代码在TextBox获取焦点时自动选择文本:myTextBox.Focus(); myTextBox.SelectAll(); 这样,当TextBox获取焦点时,文...
tb.Focus(); e.Handled = true; } void OnGotFocus(object sender, RoutedEventArgs e) { TextBox tb = e.Source as TextBox; tb.SelectAll(); tb.PreviewMouseDown -= new MouseButtonEventHandler(OnPreviewMouseDown); } <TextBox Name="searchTextBox" Background="DarkOrange" HorizontalAlignment="Stre...
但是一种解决方案是对GotKeyboardFocus和GotMouseCapture事件进行选择。这样，它将始终有效。
} } private static void TextBoxOnGotFocus(object sender, RoutedEventArgs e){ var textBox = sender as TextBoxBase;if (textBox != null){ textBox.SelectAll();} } } 然后在Style里面 <Setter Property="local:TextBoxHelper.AutoSelectAll" Value="True"/> local是你引用的命名空间 ...
(propertyName)); } }private void SearchBox_TextChanged(object sender, TextChangedEventArgs e) { if (string.IsNullOrEmpty(SearchBox.Text)) { SearchBox.Text = "请输入搜索内容"; SearchBox.SelectAll(); } }<TextBlock Text="请输入搜索内容" Visibility="{Binding IsDefaultTextVisible, Converter={...
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