'bind' does not accept values of type System.DateTimeOffset

[mwinkler]

If I try to bind the type System.DateTimeOffset I get a

System.ArgumentException: 'bind' does not accept values of type System.DateTimeOffset. To read and write this value type, wrap it in a property of type string with suitable getters and setters.

Example:

<input type="date" class="form-control" bind=@Timestamp />

[SQL-MisterMagoo]

This is because <input> takes a string value and there is no correct default way to convert between string and DateTimeOffset - at least not one that would suit everyone.

The wrapper you need would look something like this

DateTimeOffset _timeStamp;

string Timestamp 
{
  get
  {
    return _timeStamp?.ToString("<some format string>");
  }
  set
  {
    DateTimeOffset.TryParse(value, ... ,out _timeStamp);
  }
}

[SQL-MisterMagoo]

An additional benefit of a wrapper is, of course, that you can add code to call Actions on parent controls or State to notify them of a change.

[mwinkler]

Is there a way to register such conversion in general?

[mkArtakMSFT]

Related issue: #9598