c# - 如何通过规则编辑器设置动态消息？

Question

我需要根据规则编辑器中的参数字段值设置动态消息。例如，如果 A < B 或 A > C 则将 Message 设置为 A 值应介于 C 和 D 之间

Answer 1

更新：

有一个像这样的源对象：

public class Source
{
   private const string template1 = "Age must be between {0} and {1}";
   private const string template2 = "Student Age could be greater than {0}";

   public int A, B, C;

   public bool InvalidAge, StudentAge;

   [ExcludeFromEvaluation]
   public string MessageToEmployee;

   public void Display()
   {
      if(InvalidAge)
         this.MessageToEmployee =
            string.Format(this.template1, this.B, this.C);
      else if
         this.MessageToEmployee =
            string.Format(this.template2, this.B);
      else
         this.MessageToEmployee = "The validation has passed successfully";
   }
}

...您可以像这样创建规则：

If
   A is lower than B or
   A is greater than C
      then
         set InvalidAge to True and
         Display
Else If
   A is lower than B
      then
         set StudentAge to True and
         Display
Else
   Display