csharp: Add bindable factory parts support

Summary:
This commit makes parts that implement `Efl.IContent` use BindFactory
instead of property binding.

```
var factory = new Efl.Ui.ItemFactory<Efl.Ui.ListDefaultItem>();
var iconFactory = new Efl.Ui.ImageFactory(null);
iconFactory.PropertyBind("filename", "modelProperty");
factory.IconPart().BindFactory(iconFactory);
```

Fixes T7628

Reviewers: cedric, felipealmeida, SanghyeonLee

Reviewed By: felipealmeida

Tags: #efl

Maniphest Tasks: T7628

Differential Revision: https://phab.enlightenment.org/D9653

1 files changed, 10 insertions, 0 deletions

diff --git a/src/tests/efl_mono/Parts.cs b/src/tests/efl_mono/Parts.cs
index 00a67bae56..a27c1b472e 100644
--- a/src/tests/efl_mono/Parts.cs
+++ b/src/tests/efl_mono/Parts.cs
@@ -50,6 +50,16 @@ public static class TestMVVMParts
 
         Test.AssertEquals(error, Eina.Error.NO_ERROR);
     }
+
+    public static void mvvm_factory_properties()
+    {
+        var factory = new Efl.Ui.ItemFactory<Efl.Ui.ListDefaultItem>();
+        var iconFactory = new Efl.Ui.ImageFactory(null);
+        iconFactory.PropertyBind("filename", "modelProperty");
+        var error = factory.IconPart().BindFactory(iconFactory);
+
+        Test.AssertEquals(error, Eina.Error.NO_ERROR);
+    }
 }
 
 #endif