fix forgot to specify second param.

PoweredSoft.DynamicLinq/Constants.cs

@@ -23,7 +23,8 @@ namespace PoweredSoft.DynamicLinq
     public enum QueryConvertStrategy
     {
         LeaveAsIs,
-        ConvertConstantToComparedPropertyOrField
+        ConvertConstantToComparedPropertyOrField,
+        SpecifyType
     }
 
     public enum QueryCollectionHandling

PoweredSoft.DynamicLinq/Helpers/QueryableHelpers.cs

@@ -81,7 +81,7 @@ namespace PoweredSoft.DynamicLinq.Helpers
 
             // attempt a conversion.
             object convertedValue = TypeHelpers.ConvertFrom(memberType, value);
-            return Expression.Constant(convertedValue);
+            return Expression.Constant(convertedValue, memberType);
         }
 
         public static ConstantExpression ResolveConstant(Expression member, object value, QueryConvertStrategy convertStrategy)
@@ -89,6 +89,9 @@ namespace PoweredSoft.DynamicLinq.Helpers
             if (convertStrategy == QueryConvertStrategy.LeaveAsIs)
                 return Expression.Constant(value);
 
+            if (convertStrategy == QueryConvertStrategy.SpecifyType)
+                return Expression.Constant(value, member.Type);
+
             if (convertStrategy == QueryConvertStrategy.ConvertConstantToComparedPropertyOrField)
                 return QueryableHelpers.GetConstantSameAsLeftOperator(member, value);