class file AddHandle(KeyDouwnEvent) out put AddHandle(KeyDouwnEvent)

[Tearies]

Input code

 public AttachControl()
 {
     this.AddHandler(UIElement.KeyDownEvent, new KeyEventHandler(OnGotMouseCaptureEventDirect),true);
 }

Erroneous output

 public AttachControl()
 {
     this.AddHandler(UIElement.KeyDown, new KeyEventHandler(OnGotMouseCaptureEventDirect),true);
 }

Details

• Product in use: e.g. ILSpy
• Version in use: e.g. 9.0 preview 3
• Any other relevant information to the issue, or your interest in contributing a fix.

[Tearies]

seems

internal static bool IsEventBackingFieldName(string fieldName, string eventName, out int suffixLength)
{
    suffixLength = 0;
    if (fieldName == eventName)
        return true;
    var vbSuffixLength = "Event".Length;
    if (fieldName.Length == eventName.Length + vbSuffixLength && fieldName.StartsWith(eventName, StringComparison.Ordinal) && fieldName.EndsWith("Event", StringComparison.Ordinal))
    {
        suffixLength = vbSuffixLength;
        return true;
    }
    return false;
}

caused this error

[Tearies]

switch DecompilerSettings.DecompileAutomaticEvents to off . is correct.