Added CLS compliant constructor. Added unit test.

src/CsvHelper/Configuration/Attributes/TypeConverterAttribute.cs

@@ -23,8 +23,15 @@ public class TypeConverterAttribute : Attribute, IMemberMapper, IParameterMapper
 		/// Specifies the <see cref="TypeConverter"/> to use
 		/// when converting the member to and from a CSV field.
 		/// </summary>
-		/// <param name="typeConverterType"></param>
-		/// <param name="constructorArgs"></param>
+		/// <param name="typeConverterType">The type of the <see cref="ITypeConverter"/>.</param>
+		public TypeConverterAttribute(Type typeConverterType) : this(typeConverterType, new object[0]) { }
+
+		/// <summary>
+		/// Specifies the <see cref="TypeConverter"/> to use
+		/// when converting the member to and from a CSV field.
+		/// </summary>
+		/// <param name="typeConverterType">The type of the <see cref="ITypeConverter"/>.</param>
+		/// <param name="constructorArgs">Type constructor arguments for the type converter.</param>
 		public TypeConverterAttribute(Type typeConverterType, params object[] constructorArgs)
 		{
 			if (typeConverterType == null)

tests/CsvHelper.Tests/Mappings/Attribute/TypeConverterTests.cs

@@ -65,6 +65,14 @@ public void TypeConverterOnStructReferenceTest()
 			}
 		}
 
+		[Fact]
+		public void Constructor_TypeConverterWithConstructorArgs_Creates()
+		{
+			var attribute = new TypeConverterAttribute(typeof(TypeConverterWithConstructorArgs), 2);
+			Assert.IsType<TypeConverterWithConstructorArgs>(attribute.TypeConverter);
+			Assert.Equal(2, ((TypeConverterWithConstructorArgs)attribute.TypeConverter).Value);
+		}
+
 		private class TypeConverterClass
 		{
 			public int Id { get; set; }
@@ -86,22 +94,32 @@ public string ConvertToString(object value, IWriterRow row, MemberMapData member
 			}
 		}
 
-		public class AClass
+		private class AClass
 		{
 			public int Id { get; set; }
 			[TypeConverter(typeof(StringTypeConverter))]
 			public BClass Name { get; set; }
 		}
 
-		public class BClass { }
+		private class BClass { }
 
-		public class AStruct
+		private class AStruct
 		{
 			public int Id { get; set; }
 			[TypeConverter(typeof(StringTypeConverter))]
 			public BStruct Name { get; set; }
 		}
 
-		public class BStruct { }
+		private class BStruct { }
+
+		private class TypeConverterWithConstructorArgs : DefaultTypeConverter
+		{
+			public int Value { get; private set; }
+
+			public TypeConverterWithConstructorArgs(int value)
+			{
+				Value = value;
+			}
+		}
 	}
 }