To check if a Object has an Attribute in Python you can use the snippet below.
Sample Python
if hasattr(myObject, 'myAttributeName'): # myObject.myAttributeName exists.
property
How to Map to Protected Property using AutoMapper in C# and VB.NET
To map protected Properties using AutoMapper in C# and VB.NET you can use the following snippet.
Samples
Samples C#
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using System; using AutoMapper; namespace de.Fesslersoft.AutoMapperMapToProtectedProperties { class Program { static void Main(string[] args) { Product prod = new Product {Number = "Test", Price = 100, Quantity = 50}; Mapper.Initialize(cfg => { //without this line the ItemQuantity will be 10 and the Price 5 //with this line the ItemQuantity will be 50 and the Price 100 cfg.ShouldMapProperty = p => p.GetGetMethod(true).IsPrivate || p.GetGetMethod(true).IsHideBySig; Mapper.CreateMap<Product, Item>(); }); Item item = Mapper.Map<Product, Item>(prod); Console.WriteLine("ItemNumber: {0}; ItemQuantity: {1}, ItemPrice: {2}", item.Number, item.GetQuantity(), item.GetPrice()); Console.Read(); } public class Product { public string Number { get; set; } public short Quantity { get; set; } public decimal Price { get; set; } } public class Item { public Item() { Quantity = 10; Price = 5; } public string Number { get; set; } protected short Quantity { get; set; } private decimal Price { get; } public decimal GetPrice() { return Price; } public short GetQuantity() { return Quantity; } } } } |
Samples VB.NET
🙁 missing, feel free to provide a VB.NET sample
Another approach would be to create a method in the destination object to do the mapping.
Samples
Sample C#
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Mapper.CreateMap<Source, Destination>().AfterMap((src, dest) => dest.MethodToSetProtectedProperty(Source.SourceProperty)); |
Sample VB.NET
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Mapper.CreateMap(Of Source, Destination)().AfterMap(Function(src, dest) dest.MethodToSetProtectedProperty(Source.SourceProperty)) |
If you have any questions or suggestions feel free to rate this snippet, post a comment or Contact Us via Email.
Related links:
- AutoMapper
- Automapper: Map to Protected Property
- Configuring visibility
- Before and after map actions (Automapper WIKI)
- Access Modifiers (C# Programming Guide)
- Access Levels in Visual Basic
How to ignore all unmapped properties using Automapper in C# and VB.NET
To ignore all unmapped properties using Automapper in C# and VB.NET you can use the following snippet.
Sample C#
var testClassA = new TestclassA() {Name = "Testname", Title = "Testtitle"};
Mapper.CreateMap<TestclassA, TestclassB>().ForAllMembers(opt => opt.Ignore());
Mapper.CreateMap<TestclassA, TestclassB>().ForMember(source => source.Title, destination => destination.MapFrom(x => x.Title));
var testClassB = Mapper.Map<TestclassA, TestclassB>(testClassA);
Console.WriteLine(testClassB.Title); //prints out "Testtitle"
Console.WriteLine(testClassB.Name); //print nothing (NULL)
Sample VB.NET
Dim testClassA = New TestclassA() With { _
Key .Name = "Testname", _
Key .Title = "Testtitle" _
}
Mapper.CreateMap(Of TestclassA, TestclassB)().ForAllMembers(Function(opt) opt.Ignore())
Mapper.CreateMap(Of TestclassA, TestclassB)().ForMember(Function(source) source.Title, Function(destination) destination.MapFrom(Function(x) x.Title))
Dim testClassB = Mapper.Map(Of TestclassA, TestclassB)(testClassA)
Console.WriteLine(testClassB.Title)
'prints out "Testtitle"
Console.WriteLine(testClassB.Name)
'print nothing (NULL)
How to set a Property Value by Name in C# and VB.NET
To set a Property Value by Name in C# and VB.NET you can use the following snippet.
Sample C#
public static bool SetPropertyByName(this Object obj, string name, Object value)
{
var prop = obj.GetType().GetProperty(name, BindingFlags.Public | BindingFlags.Instance);
if (null == prop || !prop.CanWrite) return false;
prop.SetValue(obj, value, null);
return true;
}
Sample VB.NET
Public Shared Function SetPropertyValueByName(obj As [Object], name As String, value As [Object]) As Boolean Dim prop = obj.[GetType]().GetProperty(name, BindingFlags.[Public] Or BindingFlags.Instance) If prop Is Nothing OrElse Not prop.CanWrite Then Return False End If prop.SetValue(obj, value, Nothing) Return True End Function
How to make a List or Collection of class read-only in C# and VB.NET
To make a List or Collection of class read-only in C# and VB.NET you can use the following snippet.
Sample C#
public class Test
{
private readonly List<int> _testList = new List<int>();
public IList<int> TestList
{
get { return _testList.AsReadOnly(); }
}
public Test()
{
_testList.Add(0);
_testList.Add(1);
_testList.Add(2);
_testList.Add(3);
_testList.Add(4);
_testList.Add(5);
}
}
Sample VB.NET
Public Class Test Private ReadOnly _testList As New List(Of Integer)() Public ReadOnly Property TestList() As IList(Of Integer) Get Return _testList.AsReadOnly() End Get End Property Public Sub New() _testList.Add(0) _testList.Add(1) _testList.Add(2) _testList.Add(3) _testList.Add(4) _testList.Add(5) End Sub End Class