Read unknown object properties

james williams

Hi All,

Have question i hope someone can help me with.

Is there anyway to read an object that you dont know the type of?

Basiclly i have an old application the source has been lost and the code was obfuscated:(

Now we need to get a list of information from an object within this application.

I have injected a DLL that accepts the object as a Object But my question is what do I do next?

How can I export all information in that object without casting it to its original object type (which i can't do)?

Here is the declaration for the class:

public class OurOrders : IEnumerator<>, IEnumerable<>, IEnumerable, IEnumerator, IDisposable

Thanks for any help!!

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes15y ago
Accepted answer
You should be able to get the current value of the properties of 'obj' like this:

private void simpleButton1_Click(object sender, EventArgs e)
{
Type t = sender.GetType();
PropertyInfo[] pia = t.GetProperties();
string message = "";
foreach (PropertyInfo b in pia)
{
message += String.Format("Name : {0}, Value : {1}\r\n", b.Name, b.GetValue(obj, null));
}
MessageBox.Show(message);
}
james williams15y ago
Seemed to work fine thank you!

Just also found that there is an object dumper class that comes in:

C:\Program Files\Microsoft Visual Studio 9.0\Samples\1033\CSharpSamples.zip

thanks again for the help!!
james williams15y ago
hi,

thanks for the reply.

i just tried the below as an example. It does give me the name and type of property but not its value.

What i was more thinking of is a way to pass the object and that object is printed kinda like this:

Object
   [0]=>String Value:    [0]"Hello World"
   [1]=>Method
   [2]=>String[] Value: [0] "Val 1"
                                   [1] "Val 2"
   [2] "Val 3"
        [3]=>Object Value:[0]

So like a snapshot of what the data in the specfic instance of that class.

Thanks again!

   private void simpleButton1_Click(object sender, EventArgs e)
   {
   Type t = sender.GetType();
   PropertyInfo[] pia = t.GetProperties();

   foreach (PropertyInfo b in pia)
   {
   MessageBox.Show(b.ToString());

   }
   }
Vulpes15y ago
Well, you might be able to use reflection.

If 'obj' is an instance of the lost class, then you could get the Type object from:

Type t = obj.GetType();
PropertyInfo[] pia = t.GetProperties();

and work from there.