c# Reflection return "Nullable`1"

Question

I define my class, my fields pog_02integer and pog_03smallint are integer that can have null value (int?) ``` public class v_cCfgDeclaraciones { public string pog_idcotizacion {get;set;} public string pog_01varchar {get;set;} public int? pog_02integer {get;set;} public int? pog_03smallint {get;set;} public DateTime? pog_04date {get;set;} } ``` How I can return "integer" and not System.DBNull? I try this, but I can't find a way to return "integer" I just returned System.DBNull if I remove "?" in the name of the field as a whole recognizes but can't assign a null value. I would like to help me resolve this problem, where I can define the field with "?" and I recognize the integer data type and not System.DBNull ``` foreach (System.Data.DataRow dr in dt.Rows){ object o = Activator.CreateInstance(iSingleType); foreach (System.Reflection.PropertyInfo Registro in proRegistro){ if ((Registro.PropertyType.Namespace != "System.Collections.Generic") && (AtributoLectura(Registro.GetCustomAttribu…

Accepted Answer

There is a helper method to get a nullable type's underlying value type: `Nullable.GetUnderlyingType`. It will return null if the given type is not a closed over nullable type. I would do something like this:

```
Type type = Nullable.GetUnderlyingType(Registro.PropertyType) ?? Registro.PropertyType;
string typeName = type.Name;
```

c# Reflection return "Nullable`1"

Solution

Problem