This library allows you to get or set values to properties by name. It uses compiled lambdas instead that are cached of reflection and is thread safe.

Getting Property Value

You can get property value by calling:

T ObjectExtensions.GetPropertyValue<T>(this object source, string propertyName)

Alternatively, you can create Func that gets property value from an object by calling:

Func<object, object?> TypeExtensions.GetPropertyGetter(this Type type, string propertyName)

Setting Property Value

You can set property value by calling:

void ObjectExtensions.SetPropertyValue(this object source, string propertyName, object value)

Alternatively, you can create Func that sets property value on an object by calling:

Action<object, object?> TypeExtensions.GetPropertySetter(this Type type, string propertyName)

Both methods have TryGet pattern alternatives.

Benchmarks

You can see benchmark for GetPropertyValue method for this library, DynamicPropertyAccessor , FastMember and Reflection.
Methods with ...Reused suffix create Func/PropertyInfo once and then reuse it in benchmark.

BenchmarkDotNet=v0.13.5, OS=Windows 10 (10.0.19044.2604/21H2/November2021Update)
AMD Ryzen 7 3700X, 1 CPU, 16 logical and 8 physical cores
  [Host]               : .NET Framework 4.8 (4.8.4614.0), X64 RyuJIT VectorSize=256
  .NET 7.0             : .NET 7.0.3 (7.0.323.6910), X64 RyuJIT AVX2
  .NET Framework 4.7.2 : .NET Framework 4.8 (4.8.4614.0), X64 RyuJIT VectorSize=256

Method	Job	Runtime	Mean	Error	StdDev
DynamicPropertyAccess	.NET 7.0	.NET 7.0	26.776 ns	0.4549 ns	0.4255 ns
DynamicPropertyAccessor	.NET 7.0	.NET 7.0	31.530 ns	0.3986 ns	0.3728 ns
FastMember	.NET 7.0	.NET 7.0	30.972 ns	0.4472 ns	0.4183 ns
Reflection	.NET 7.0	.NET 7.0	33.527 ns	0.4686 ns	0.4383 ns
DynamicPropertyAccessReused	.NET 7.0	.NET 7.0	1.475 ns	0.0332 ns	0.0311 ns
FastMemberReused	.NET 7.0	.NET 7.0	14.770 ns	0.1585 ns	0.1483 ns
ReflectionReused	.NET 7.0	.NET 7.0	12.105 ns	0.2688 ns	0.2514 ns
DynamicPropertyAccess	.NET Framework 4.7.2	.NET Framework 4.7.2	66.566 ns	1.2969 ns	1.3877 ns
DynamicPropertyAccessor	.NET Framework 4.7.2	.NET Framework 4.7.2	57.735 ns	1.1492 ns	1.4113 ns
FastMember	.NET Framework 4.7.2	.NET Framework 4.7.2	43.592 ns	0.1853 ns	0.1547 ns
Reflection	.NET Framework 4.7.2	.NET Framework 4.7.2	169.533 ns	2.0884 ns	1.6305 ns
DynamicPropertyAccessReused	.NET Framework 4.7.2	.NET Framework 4.7.2	5.731 ns	0.0291 ns	0.0227 ns
FastMemberReused	.NET Framework 4.7.2	.NET Framework 4.7.2	24.150 ns	0.1821 ns	0.1703 ns
ReflectionReused	.NET Framework 4.7.2	.NET Framework 4.7.2	120.565 ns	2.4210 ns	4.9455 ns

As you can see, GetPropertyValue is slightly slower on .NET Framework than available alternatives. This is because of thread safety overhead. On the other hand, reused Func from GetPropertyGetter is significantly faster. Additionally, Reflection is almost as fast on .NET 7+. You can read more about it here.

Conclusions

• Use this library (and reuse Getter/Setter) if:
  • Read/Write operations are frequently performed.
  • Thread safety is important.
• Use other libraries if:
  • Read/Write operations are rarely performed.
  • Thread safety is not a concern.
  • Target framework is .NET Framework, .NET 6 or below.
• Use Reflection if:
  • Target framework is .NET 7+ and Read/Write operations are rarely performed.