add Caption to ViewModel

1 files changed, 20 insertions, 0 deletions

diff --git a/Juick/Classes/ExpressionHelper.cs b/Juick/Classes/ExpressionHelper.cs
new file mode 100644
index 0000000..3eb453a
--- /dev/null
+++ b/Juick/Classes/ExpressionHelper.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Linq.Expressions;
+
+namespace Juick.Classes
+{
+    static class ExpressionHelper
+    {
+        public static string GetPropertyName<T>(Expression<Func<T, object>> propertyExpression)
+        {
+            var bodyExpression = propertyExpression.Body;
+            var unaryExpression = bodyExpression as UnaryExpression;
+            if (unaryExpression != null)
+            {
+                bodyExpression = unaryExpression.Operand;
+            }
+            var memberExpression = (MemberExpression)bodyExpression;
+            return memberExpression.Member.Name;
+        }
+    }
+}