在RichTextBox中禁用编辑 [英] Disabling editing in a RichTextBox
问题描述
问候，
我想禁用所有RichTextBox编辑，但不使用IsReadOnly，因为稍后我将手动处理一些自定义编辑.
I want to disable all RichTextBox editing, but without using IsReadOnly, because later I will handle some custom editing manually.
我已将以下内容附加到PreviewTextInput事件:
I've attached the following to the PreviewTextInput event:
私有 无效 OnPreviewTextInput( 对象 发件人， TextCompositionEventArgs e){
private void OnPreviewTextInput(object sender, TextCompositionEventArgs e) {
e.Handled = true ;
e.Handled = true;
}
并在InitializeComponent之后在窗口构造函数中调用DisableNonReadOnlyCommands(textBox):
and I call DisableNonReadOnlyCommands(textBox) in the window constructor after InitializeComponent:
public 静态 void DisableNonReadOnlyCommands( RichTextBox textBox){
public static void DisableNonReadOnlyCommands(RichTextBox textBox) {
foreach ( RoutedUICommand 命令 中 nonReadOnlyCommands){
foreach (RoutedUICommand command in nonReadOnlyCommands) {
CommandManager .RegisterClassCommandBinding(textBox.GetType()，
CommandManager.RegisterClassCommandBinding(textBox.GetType(),
新 CommandBinding (
new CommandBinding(
命令
新 ExecutedRoutedEventHandler (NullOnCommand)，
new ExecutedRoutedEventHandler(NullOnCommand),
新 CanExecuteRoutedEventHandler (NullOnCanExecuteCommand)));
new CanExecuteRoutedEventHandler(NullOnCanExecuteCommand)));
}
}
私有 静态 无效 NullOnCommand( 对象 发送者， ExecutedRoutedEventArgs e){
private static void NullOnCommand(object sender, ExecutedRoutedEventArgs e) {
e.Handled = true ;
e.Handled = true;
}
私有 静态 无效 NullOnCanExecuteCommand( 对象 发送者， CanExecuteRoutedEventArgs e){
private static void NullOnCanExecuteCommand(object sender, CanExecuteRoutedEventArgs e) {
e.CanExecute = false ;
e.CanExecute = false;
e.Handled = true ;
e.Handled = true;
}
私有 静态 只读 RoutedUICommand [] nonReadOnlyCommands = 新 RoutedUICommand [] {
private static readonly RoutedUICommand[] nonReadOnlyCommands = new RoutedUICommand[] {
EditingCommands .AlignCenter，
EditingCommands.AlignCenter,
EditingCommands .AlignJustify，
EditingCommands.AlignJustify,
EditingCommands .AlignLeft，
EditingCommands.AlignLeft,
EditingCommands .AlignRight，
EditingCommands.AlignRight,
EditingCommands .Backspace，
EditingCommands.Backspace,
EditingCommands .CorrectSpellingError，
EditingCommands.CorrectSpellingError,
EditingCommands .DecreaseFontSize，
EditingCommands.DecreaseFontSize,
EditingCommands .DecreaseIndentation，
EditingCommands.DecreaseIndentation,
EditingCommands .删除
EditingCommands.Delete,
EditingCommands .DeleteNextWord，
EditingCommands.DeleteNextWord,
EditingCommands .DeletePreviousWord，
EditingCommands.DeletePreviousWord,
EditingCommands .EnterLineBreak，
EditingCommands.EnterLineBreak,
EditingCommands .EnterParagraphBreak，
EditingCommands.EnterParagraphBreak,
EditingCommands .IgnoreSpellingError，
EditingCommands.IgnoreSpellingError,
EditingCommands .IncreaseFontSize，
EditingCommands.IncreaseFontSize,
EditingCommands .IncreaseIndentation，
EditingCommands.IncreaseIndentation,
EditingCommands .ToggleBold，
EditingCommands.ToggleBold,
EditingCommands .ToggleBullets，
EditingCommands.ToggleBullets,
EditingCommands .ToggleInsert，
EditingCommands.ToggleInsert,
EditingCommands .ToggleItalic
EditingCommands.ToggleItalic,
EditingCommands .ToggleNumbering，
EditingCommands.ToggleNumbering,
EditingCommands .ToggleSubscript，
EditingCommands.ToggleSubscript,
EditingCommands .ToggleSuperscript，
EditingCommands.ToggleSuperscript,
EditingCommands .ToggleUnderline，
EditingCommands.ToggleUnderline,
ApplicationCommands .Cut，
ApplicationCommands.Cut,
ApplicationCommands .删除
ApplicationCommands.Delete,
ApplicationCommands .粘贴
ApplicationCommands.Paste,
};
问题是Delete和Control + X仍然有效.
The problem is that Delete and Control+X still work.
我在做什么错了?
最好的问候，
Gustavo Guerra
Gustavo Guerra
推荐答案
只是一个主意. style ="text-decoration:underline">
Just an idea.. did you try handling PreviewKeyDown?
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