Use better way of detecting the Nullable underlying type.

qjnz · May 12, 2010 · 44818c1 · 44818c1
1 parent a4046e7
commit 44818c1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/source/MongoDB/Configuration/Mapping/Model/MemberMapBase.cs b/source/MongoDB/Configuration/Mapping/Model/MemberMapBase.cs
@@ -78,7 +78,7 @@ public virtual void SetValue(object instance, object value)
                         _memberReturnType.GetGenericTypeDefinition() == typeof(Nullable<>))
                     {
                         if(value!=null)
-                            value = Convert.ChangeType(value, _memberReturnType.GetGenericArguments().First());
+                            value = Convert.ChangeType(value, Nullable.GetUnderlyingType(valueType));
                     }
                     else if(code != TypeCode.Object)
                         value = Convert.ChangeType(value, _memberReturnType);