public static IQueryable Filter(this IQueryable source, FilterCondition condition)
{
if (condition.HasValidFilter())
{
var lambda = condition.ToExpression(source.ElementType);
return(source.Provider.CreateQuery(
Expression.Call(
typeof(Queryable), "Where",
new[] { source.ElementType },
source.Expression, Expression.Quote(lambda))));
}
return(source);
}
