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  1. using System;
  2. using System.Reflection;
  3. using System.Linq.Expressions;
  4.  
  5. public class TestDTO
  6. {
  7. 	public string StringValue { get; set; }
  8. 	public int IntValue { get; set; }
  9. }
  10.  
  11. public class TestDataClass
  12. {
  13. 	public string StringValue { get; set; }
  14. 	public int IntValue { get; set; }
  15. 	public string AnotherStringValue { get; set;}
  16. }
  17.  
  18. public class Test
  19. {
  20. 	public static bool AreEqual<TDTO, TDATA>(TDTO dto, TDATA data) 
  21. 	{
  22. 		foreach(var prop in typeof(TDTO).GetProperties())
  23. 		{
  24. 			var dataProp = typeof(TDATA).GetProperty(prop.Name);
  25. 			if (dataProp == null)
  26. 				throw new InvalidOperationException(string.Format("Property {0} is missing in data class.", prop.Name));
  27. 			var compExpr = GetComparisonExpression(prop, dataProp);
  28. 			var del = compExpr.Compile();
  29. 			if (!(bool)del.DynamicInvoke(dto, data))
  30. 				return false;
  31. 		}
  32. 		return true;
  33. 	}
  34.  
  35. 	private static LambdaExpression GetComparisonExpression(PropertyInfo dtoProp, PropertyInfo dataProp)
  36. 	{
  37. 		var dtoParam = Expression.Parameter(dtoProp.DeclaringType, "dto");
  38. 		var dataParam = Expression.Parameter(dataProp.DeclaringType, "data");
  39. 		return Expression.Lambda(
  40. 			Expression.MakeBinary(ExpressionType.Equal, 
  41. 				Expression.MakeMemberAccess(
  42. 					dtoParam, dtoProp), 
  43. 				Expression.MakeMemberAccess(
  44. 					dataParam, dataProp)), dtoParam, dataParam);
  45. 	}
  46.  
  47. 	public static void Main()
  48. 	{
  49. 		var dto = new TestDTO() { StringValue = "Test", IntValue = 1 };
  50. 		var data = new TestDataClass() { StringValue = "Test", IntValue = 1 };
  51. 		Console.WriteLine("AreEqual = {0}", AreEqual(dto, data));
  52. 		var otherData = new TestDataClass() { StringValue = "SomeOtherValue", IntValue = 3 };
  53. 		Console.WriteLine("AreEqual = {0}", AreEqual(dto, otherData));
  54. 	}
  55. }
Success #stdin #stdout 0.08s 34368KB
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Standard input is empty
stdout
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AreEqual = True
AreEqual = False
https://ideone.com/zgoMVm
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
public

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