As for me I’d prefer the first option, to use a converter and bind it to the MaxLength property of UXTextBox, since this one is more feasible to be implemented.

I found an interesting discussion in here. The idea is to store the MaxLength as a property in ViewModel and then set the cell’s MaxLength property through the column’s EditingElementStyle.

If any other members who had good ideas for this topic, please feel free to leave a comment and let us hear your feedback.

Thanks for your swift response, Yudi.

I implemented a value converter yesterday (using reflection to obtain the max string length attribute). It was fairly easy and it is a much more versatile solution as it can be used anywhere in xaml.

Creating a max length property for every property of my entities is not a convenient solution as there can be many of them. It also raises the question how they would get updated automatically if and when the entity model gets updated and the max strings lengths change. Doing this manually is too inconvenient and error prone.

Nevertheless, you said "I found an interesting discussion in here" and I'd be interested to hear other's thoughts on the issue. Could you pls specify (with a link maybe) where exactly "in here" is?

I’m sorry for I forgot to insert the link in my previous post.

Please try to check the discussion in here and here.