Add support for combined error/helper text below inputs

[cmeeren]

I can't find any support for helper text below inputs as described in this section in the Material Design documentation (note its interplay with error/validation text later in the section). Would it be possible to add support for this?

[Insire]

I'm pretty sure thats already supported, when you bind to ViewModels that implement INotifyDataErrorInfo or IDataErrorInfo.

[cmeeren]

AFAIK that's just for errors, not helper text.

[Insire]

Ah, you mean the small gray caption below the input fields, that also turns red once a validation error occurs? I dont think there is currently support for that.

[cmeeren]

Yes, that is exactly what I'm talking about. :-) Note that the text need not be the same as any error message.

[ChrisLawford]

Second this! would be great if it is included in the future

[andrejpanjan]

I third that!

[MichelMichels]

I'm currently working to implement this.