What is a good way to model my SQL Table Class?

I am trying to retrieve a table with several columns and I have created a class that will be able to represent each row as an object with properties.

E.G.

class TableA {
   int prop1;
   int prop2;
   ....
} 

I am using SqlDataReader to read the value for each row and then assigning it to the object that I have created

TableA tab = new TableA()
tab.prop1 = sqlreader.GetValue(prop1_ordinal).toString();

At the moment I need to explicitly state:

tab.prop1 = etc2.. 
tab.prop2 = etc2...

This can be quite troublesome when I have quite a few properties (20+ or so).

What other alternatives should I be using?

I am thinking of using a Dictionary or something of the sort but am not sure how to start. That way, I can just use a foreach loop to go through a list of all the properties and set the values.

Essentially, I don't want to put in too much redundant code just to set values.

After all the data has been put into the object, I will essentially write it to a CSV file after the values have been manipulated and changed.

Any thoughts will be appreciated?