Selection and copy is working in editor(in read-only state) in .net maui

Question

Selection and copy is working in editor(in read-only state) in .net maui

Vijayadharshini M 20

I am using editor of .net Maui. Even when I set IsReadOnly true I am able to select text and copy the text. How to disable selection in windows?

Blaise-1597 61 Reputation points

2026-02-07T23:08:19.85+00:00

IMHO, this behavior is the way the control should work, like WinForms TextBox controls have always worked. If you want to prevent selection and copying, set IsEnabled=False. Right now, in .NET 9, I want this behavior (where the user can select and copy text in a read-only Editor). But with an Editor that has both IsEnabled and IsReadOnly set to True, the user cannot select or copy any text. I don't understand what the point of this is - IsReadOnly just seems like an alias for !IsEnabled. Okay, IsEnabled = False may also "gray out" a control. But as far as practical functionality goes, !IsEnabled and IsReadOnly mean pretty much the same thing.

IsReadOnly = True should only prevent text changes, it should not prevent selecting and copying text

Answer accepted by question author

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Blaise-1597 61 Reputation points

2026-02-07T23:08:19.85+00:00

IMHO, this behavior is the way the control should work, like WinForms TextBox controls have always worked. If you want to prevent selection and copying, set IsEnabled=False. Right now, in .NET 9, I want this behavior (where the user can select and copy text in a read-only Editor). But with an Editor that has both IsEnabled and IsReadOnly set to True, the user cannot select or copy any text. I don't understand what the point of this is - IsReadOnly just seems like an alias for !IsEnabled. Okay, IsEnabled = False may also "gray out" a control. But as far as practical functionality goes, !IsEnabled and IsReadOnly mean pretty much the same thing.

IsReadOnly = True should only prevent text changes, it should not prevent selecting and copying text

Answer 1

Hello,

How to disable selection in windows?

You can do this by Handler. You can get Microsoft.UI.Xaml.Controls.TextBox control

Attach to the SelectionChanging event and the SelectionLength = 0; and that will stop the selection from occurring.


  Microsoft.Maui.Handlers.EditorHandler.Mapper.AppendToMapping("MyCustomization", (handler, view) =>
            {
#if WINDOWS
              
              if (view.IsReadOnly)
               {
     
                   Microsoft.UI.Xaml.Controls.TextBox res = handler.PlatformView;
                   res.SelectionChanging += (o, e) =>
                   {
                      res.SelectionStart = 0;


               };
             }
#endif
            });

Best Regards,

Leon Lu

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Answer 2

Jonas Miguel 0

bom de maiss

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Selection and copy is working in editor(in read-only state) in .net maui

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