How to create binding from Expression instead of string?

Question

Is there a way to create a Binding from a Expression rather than having to hardcode the name of the Property?

Normally you do:

new Binding("MyPropertyName")

Is there a way, part of the Framework, that you could do instead, something like:

new Binding(x=> x.MyPropertyName)

Does the Framework offer this feature?

I don't think the type inference system would be able to determine what type x is in your example. You would need something like new Binding(MyThing x=> x.MyPropertyName) for it to work at all. I don't think this directly exists, but you could easily create a helper function to do it. — Bradley Uffner
– Bradley Uffner, Commented May 6, 2015 at 13:47
@BradleyUffner - Yes, I just wrote a lose example to get my point across, I realize the x is not enough information, thanks for pointing it out though. — Dzyann
– Dzyann, Commented May 6, 2015 at 14:00

Pawel Maga · Accepted Answer · 2015-05-06 13:47:03Z

1

At this moment is not possible. You have to wait for C# 6.0 and nameof operator - https://msdn.microsoft.com/en-us/magazine/dn802602.aspx

In other way you can use this simply method:

public static string GetPropertyName<T>(Expression<Func<T>> expression)
{
    MemberExpression body = (MemberExpression)expression.Body;
    return body.Member.Name;
}

answered May 6, 2015 at 13:47

Pawel Maga

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