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Cast a property to its actual type dynamically using reflection

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梦毁少年i
梦毁少年i 2020-12-09 08:29

I need to cast a property to its actual type dynamically. How do I/Can I do this using reflection?

To explain the real scenario that I am working on a bit. I am tryi

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  • 天涯浪人
    天涯浪人 (楼主)
    2020-12-09 08:53

    Though I should post the solution to the real world problem.

    string objectType = "MyProperty";

using (MyEntitiesContext entitiesContext = new MyEntitiesContext())
{
try
{
    string queryString = @"SELECT VALUE " + objectType+  " FROM MyEntitiesContext." + objectType + " AS " + objectType + " WHERE " + objectType + ".id = @id";

    IQueryable query = entitiesContext.CreateQuery(queryString, new ObjectParameter("id", objectId));

    foreach (Object result in query)
    {
        return result;
    }
}
catch (EntitySqlException ex)
{
    Console.WriteLine(ex.ToString());
}
}

return null;



    I think the new CLR4 dynamic keywork might be the "nice" solution.
    


    Thanks for all the responces.
    
    
    
             
    
                                                        
    
            
            
    
              
                
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