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DataPRO/IService/.svn/pristine/6f/6f914c076f352c17567664bed27cb73bfede1937.svn-base

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+using System;
+
+// ReSharper disable once CheckNamespace
+namespace DTS.DASLib.Service
+{
+    /// <summary>
+    /// this attribute controls whether a gain is disabled or not
+    /// this was done for
+    /// http://fogbugz/fogbugz/default.asp?10080
+    /// to prevent the higher range gains which were considered just not useful
+    /// this attribute is optional, it is assume the gain is not disabled
+    /// unless it's explicitly  marked as disabled
+    /// </summary>
+    public class GainDisabledAttribute : Attribute
+    {
+        /// <summary>
+        /// returns whether the gain is disabled or not
+        /// http://fogbugz/fogbugz/default.asp?10080
+        /// </summary>
+        /// <param name="o"></param>
+        /// <returns></returns>
+        public static bool IsGainDisabled(object o)
+        {
+            if (o == null) return false;
+            var mi = o.GetType().GetMember(o.ToString());
+            if (mi.Length <= 0) return false;
+            return GetCustomAttribute(mi[0], typeof(GainDisabledAttribute)) is GainDisabledAttribute attr && attr._bDisabled;
+        }
+
+        private readonly bool _bDisabled;
+        public GainDisabledAttribute(bool disabled)
+        {
+            _bDisabled = disabled;
+        }
+    }
+}