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Let's assume I have a class ClassWithMember
class ClassWithMember
{
int myIntMember = 10;
}
How do I get the default value 10 of the myIntMember member by System.Type?
I'm currently struggling around with reflections by all I retreive is the default value of int (0) not the classes default member (10)..
583
asked Jun 07 '10 13:06
You can simply provide a default value by writing an initializer after its declaration in the class definition. Both braced and equal initializers are allowed – they are therefore calle brace-or-equal-initializer by the C++ standard: class X { int i = 4; int j {5}; };
Just to clarify: all classes (including the ones you create) will default to null . Number value types will default to zero and structs are implementation defined (values are set in the constructor).
The variables of primitive type contains 0 as a default value in a broader sense. When variable is of any class type (non-primitive type), then it is known as reference variable, and it contains null value as a default value.
When we define a struct (or class) type, we can provide a default initialization value for each member as part of the type definition. This process is called non-static member initialization, and the initialization value is called a default member initializer.
You can try something like this:
var field = typeof(ClassWithMember).GetField("myIntMember",
BindingFlags.Instance | BindingFlags.NonPublic);
var value = (int)field.GetValue(new ClassWithMember());
The trick here is to instantiate an instance.
186
answered Sep 29 '22 07:09
Try creating an instance an retreive the value with reflection.
27
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