how to set nullable type via reflection code ( c#)?

Question

I need to set the properties of a class using reflection.

I have a Dictionary with property names and string values.

Inside

Answer 1

Originally, the best solution is mentioned at MSDN forum. However, when you need to implement dynamic solution, where you don't know exactly how many nullable fields may be declared on a class, you best bet is to check if Nullable<> type can be assigned to the property, which you inspect via reflection

protected T initializeMe(T entity, Value value)
{
  Type eType = entity.GetType();
  foreach (PropertyInfo pi in eType.GetProperties())
        {
            //get  and nsame of the column in DataRow              
            Type valueType = pi.GetType();                
            if (value != System.DBNull.Value )
            {
             pi.SetValue(entity, value, null);
            }
            else if (valueType.IsGenericType && typeof(Nullable<>).IsAssignableFrom(valueType)) //checking if nullable can be assigned to proptety
            {
             pi.SetValue(entity, null, null);
            }
            else
            {
             System.Diagnostics.Trace.WriteLine("something here");
            }
            ...
        }
...
}