Portable Class Library Reflection GetField

Question

I am currently trying to convert a Xamarin.iOS app library to a PCL. I have this code that will not compile:

    private void SetPrivateField<T>(object item, string fieldName, object value) {
        typeof(T).GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic)
            .SetValue(item, value);
    }

As you can see I am trying to set a private field for a type. Is there another way?

EDIT This compiles. Will it do the same thing?

 private void SetPrivateField<T>(object item, string fieldName, object value) {
      typeof(T).GetRuntimeField(fieldName).SetValue(item,value);
 }

@poupou The name 'BindingFlags' does not exist in the current context (im compiling in visual studio) — Chris Kooken, Dec 10 '13 at 22:34
What profile are you using ? there are major difference in the reflection api exposed in 78 and 158 — Stephane Delcroix, Dec 11 '13 at 07:36
@ChrisKooken Did you find out how to dynamically access an inherited property in PCL? — Lorenz Lo Sauer, Jul 27 '16 at 13:28

score 6 · Accepted Answer · answered Dec 12 '13 at 16:21

6

This ended up being the correct code.

private void SetPrivateField<T>(object item, string fieldName, object value) {
    typeof(T).GetTypeInfo().GetDeclaredField(fieldName).SetValue(item,value);
}

answered Dec 12 '13 at 16:21

Chris Kooken

32,730
15
85
123

This is the right answer. For better performance, it is usually better to cache the setters. – Thomas Bienkowski Feb 07 '17 at 10:09

score 2 · Answer 2 · edited May 23 '17 at 12:17

2

The reflection APIs in Portable Class Libraries targeting newer platforms are different. See the following links for some info on why we did this and how to use the new APIs:

edited May 23 '17 at 12:17

Community

1
1

answered Dec 11 '13 at 06:27

Daniel Plaisted

16,674
4
44
56

Portable Class Library Reflection GetField

2 Answers2