Prevent onkeydown event with condition.

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

HI I need be possible to block the browser CTRL+F default event, and run some my custom logic instead. My Code:

<div  @onkeydown="(args) => KeyHandle(args)"
         @onkeydown:preventDefault="PreventKeyDown">

          Some elements...
</div>

Razor File:

CS File:

public bool PreventKeyDown { get; set; } = false;
    
      private void KeyHandle(KeyboardEventArgs keyboardEvent)
      {
          PreventKeyDown = false;

          if (!keyboardEvent.Repeat)
          {
if (keyboardEvent.CtrlKey && keyboardEvent.Code == "KeyF")
              {
                  PreventKeyDown = true;
                  Some logic...
              }
          }
}

This block is not working but if I not use the prevent with parameter like this:

       @onkeydown="(args) => KeyHandle(args)"
       @onkeydown:preventDefault="true">

Some elements...
</div>```

It works and block the event but in this way blocks all event and I want to block only the CTRL+F.

How can I solve that issue(prevent only CTRL+F event)?

### Expected Behavior

If you press CTLS+F search should not become visible.

### Steps To Reproduce

Enter the code as in the description and press CTRL+F.

### Exceptions (if any)

_No response_

### .NET Version

6.0.401

### Anything else?

_No response_

[Flachdachs]

My goal is not to just block, but to react on certain keys and prevent the default behavior. In particular changing to the previous or next tab of a tab panel using the cursor keys, but prevent that the browser scrolls on cursor up and down keys.

[Planit-Scheduler-Solutions]

Thanks, works great for me. (I apply as in the example).